Merge pull request #292 from simplex-chat/master

v1.1.1 terminal app, v0.3 iOS app
2026-05-24 10:55:33 +00:00 · 2022-02-11 13:06:40 +04:00
parent d29a6542de 0ea8705014
commit c59caa5d7f
159 changed files with 11343 additions and 2154 deletions
@@ -4,7 +4,7 @@ on:
  push:
    branches:
      - master
-      - v4
+      - stable
    tags:
      - "v*"
  pull_request:
@@ -32,6 +32,7 @@ jobs:
        uses: softprops/action-gh-release@v1
        with:
          body: ${{ steps.build_changelog.outputs.changelog }}
+          prerelease: true
          files: |
            LICENSE
          fail_on_unmatched_files: true
@@ -49,24 +50,15 @@ jobs:
        include:
          - os: ubuntu-20.04
            cache_path: ~/.stack
-            stack_args: "--test"
-            artifact_rel_path: /bin/simplex-chat
            asset_name: simplex-chat-ubuntu-20_04-x86-64
          - os: ubuntu-18.04
            cache_path: ~/.stack
-            stack_args: "--test"
-            artifact_rel_path: /bin/simplex-chat
            asset_name: simplex-chat-ubuntu-18_04-x86-64
          - os: macos-latest
            cache_path: ~/.stack
-            stack_args: "--test"
-            artifact_rel_path: /bin/simplex-chat
            asset_name: simplex-chat-macos-x86-64
-          # TODO enable tests for windows once fixed (remove stack_args altogether)
          - os: windows-latest
            cache_path: C:/sr
-            stack_args: ""
-            artifact_rel_path: /bin/simplex-chat.exe
            asset_name: simplex-chat-windows-x86-64
    steps:
      - name: Clone project
@@ -85,17 +77,51 @@ jobs:
          path: ${{ matrix.cache_path }}
          key: ${{ matrix.os }}-${{ hashFiles('stack.yaml') }}

-      - name: Build & test
-        id: build_test
-        run: |
-          stack build ${{ matrix.stack_args }}
-          echo "::set-output name=LOCAL_INSTALL_ROOT::$(stack path --local-install-root)"
+      # / Unix

-      - name: Upload binaries to release
-        if: startsWith(github.ref, 'refs/tags/v')
+      - name: Unix build
+        id: unix_build
+        if: matrix.os != 'windows-latest'
+        shell: bash
+        run: |
+          stack build --test
+          echo "::set-output name=local_install_root::$(stack path --local-install-root)"
+
+      - name: Unix upload binary to release
+        if: startsWith(github.ref, 'refs/tags/v') && matrix.os != 'windows-latest'
        uses: svenstaro/upload-release-action@v2
        with:
          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: ${{ steps.build_test.outputs.LOCAL_INSTALL_ROOT }}${{ matrix.artifact_rel_path }}
+          file: ${{ steps.unix_build.outputs.local_install_root }}/bin/simplex-chat
          asset_name: ${{ matrix.asset_name }}
          tag: ${{ github.ref }}
+
+      # Unix /
+
+      # / Windows
+
+      # * In powershell multiline commands do not fail if individual commands fail - https://github.community/t/multiline-commands-on-windows-do-not-fail-if-individual-commands-fail/16753
+      # * And GitHub Actions does not support parameterizing shell in a matrix job - https://github.community/t/using-matrix-to-specify-shell-is-it-possible/17065
+      # * So we're running a separate set of actions for Windows build
+
+      # TODO run tests on Windows
+      - name: Windows build
+        id: windows_build
+        if: matrix.os == 'windows-latest'
+        shell: cmd
+        run: |
+          stack build
+          stack path --local-install-root > tmp_file
+          set /p local_install_root= < tmp_file
+          echo ::set-output name=local_install_root::%local_install_root%
+
+      - name: Windows upload binary to release
+        if: startsWith(github.ref, 'refs/tags/v') && matrix.os == 'windows-latest'
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: ${{ steps.windows_build.outputs.local_install_root }}\bin\simplex-chat.exe
+          asset_name: ${{ matrix.asset_name }}
+          tag: ${{ github.ref }}
+
+      # Windows /
@@ -79,7 +79,7 @@ The routing of messages relies on the knowledge of client devices how user conta
 - Two layers of E2E encryption (double-ratchet for duplex connections, using X3DH key agreement with ephemeral Curve448 keys, and NaCl crypto_box for SMP queues, using Curve25519 keys) and out-of-band passing of recipient keys (see [How to use SimpleX chat](#how-to-use-simplex-chat)).
 - Message integrity validation (via including the digests of the previous messages).
 - Authentication of each command/message by SMP servers with automatically generated Ed448 keys.
- TLS 1.2 transport encryption.
+- TLS 1.3 transport encryption.
 - Additional encryption of messages from SMP server to recipient to reduce traffic correlation.

 Public keys involved in key exchange are not used as identity, they are randomly generated for each contact.
@@ -125,6 +125,8 @@ move <binary> %APPDATA%/local/bin/simplex-chat.exe

 ### Build from source

+> **Please note:** to build the app use source code from [stable branch](https://github.com/simplex-chat/simplex-chat/tree/stable).
+
 #### Using Docker

 On Linux, you can build the chat executable using [docker build with custom output](https://docs.docker.com/engine/reference/commandline/build/#custom-build-outputs):
@@ -132,6 +134,7 @@ On Linux, you can build the chat executable using [docker build with custom outp
 ```shell
 $ git clone git@github.com:simplex-chat/simplex-chat.git
 $ cd simplex-chat
+$ git checkout stable
 $ DOCKER_BUILDKIT=1 docker build --output ~/.local/bin .
 ```

@@ -150,6 +153,7 @@ and build the project:
 ```shell
 $ git clone git@github.com:simplex-chat/simplex-chat.git
 $ cd simplex-chat
+$ git checkout stable
 $ stack install
 ```

@@ -0,0 +1,24 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+build/
+release/
+debug/
+/captures
+.externalNativeBuild
+.cxx
+local.properties
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
@@ -0,0 +1 @@
+SimpleX
@@ -0,0 +1,117 @@
+<component name="ProjectCodeStyleConfiguration">
+  <code_scheme name="Project" version="173">
+    <codeStyleSettings language="XML">
+      <option name="FORCE_REARRANGE_MODE" value="1" />
+      <indentOptions>
+        <option name="CONTINUATION_INDENT_SIZE" value="4" />
+      </indentOptions>
+      <arrangement>
+        <rules>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>xmlns:android</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>xmlns:.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*:id</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*:name</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>name</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>style</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>ANDROID_ATTRIBUTE_ORDER</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>.*</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+        </rules>
+      </arrangement>
+    </codeStyleSettings>
+  </code_scheme>
+</component>
@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
+  </state>
+</component>
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="11" />
+  </component>
+</project>
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="testRunner" value="GRADLE" />
+        <option name="distributionType" value="DEFAULT_WRAPPED" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/app" />
+          </set>
+        </option>
+        <option name="resolveModulePerSourceSet" value="false" />
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DesignSurface">
+    <option name="filePathToZoomLevelMap">
+      <map>
+        <entry key="app/src/main/res/drawable-v24/ic_launcher_foreground.xml" value="0.2328125" />
+        <entry key="app/src/main/res/drawable/ic_launcher_background.xml" value="0.2328125" />
+        <entry key="app/src/main/res/layout/activity_main.xml" value="0.22010869565217392" />
+      </map>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="Android Studio default JDK" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
+  </component>
+</project>
@@ -0,0 +1,60 @@
+plugins {
+    id 'com.android.application'
+    id 'kotlin-android'
+}
+
+android {
+    compileSdk 32
+
+    defaultConfig {
+        applicationId "chat.simplex.app"
+        minSdk 24
+        targetSdk 32
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        ndk {
+            abiFilters 'arm64-v8a'
+        }
+        externalNativeBuild {
+            cmake {
+                cppFlags ''
+            }
+        }
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+    externalNativeBuild {
+        cmake {
+            path file('src/main/cpp/CMakeLists.txt')
+            version '3.10.2'
+        }
+    }
+    buildFeatures {
+        viewBinding true
+    }
+}
+
+dependencies {
+
+    implementation 'androidx.core:core-ktx:1.7.0'
+    implementation 'androidx.appcompat:appcompat:1.4.1'
+    implementation 'com.google.android.material:material:1.5.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
+    testImplementation 'junit:junit:4.+'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+}
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
@@ -0,0 +1,24 @@
+package chat.simplex.app
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+  @Test
+  fun useAppContext() {
+    // Context of the app under test.
+    val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+    assertEquals("chat.simplex.app", appContext.packageName)
+  }
+}
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="chat.simplex.app">
+
+  <uses-permission android:name="android.permission.INTERNET" />
+  <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+
+  <application
+    android:allowBackup="true"
+    android:icon="@mipmap/ic_launcher"
+    android:label="@string/app_name"
+    android:roundIcon="@mipmap/ic_launcher_round"
+    android:supportsRtl="true"
+    android:theme="@style/Theme.SimpleX">
+    <activity
+      android:name=".MainActivity"
+      android:exported="true">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+
+</manifest>
@@ -0,0 +1,68 @@
+# For more information about using CMake with Android Studio, read the
+# documentation: https://d.android.com/studio/projects/add-native-code.html
+
+# Sets the minimum version of CMake required to build the native library.
+
+cmake_minimum_required(VERSION 3.10.2)
+
+# Declares and names the project.
+
+project("app")
+
+# Creates and names a library, sets it as either STATIC
+# or SHARED, and provides the relative paths to its source code.
+# You can define multiple libraries, and CMake builds them for you.
+# Gradle automatically packages shared libraries with your APK.
+
+add_library( # Sets the name of the library.
+    app-lib
+
+    # Sets the library as a shared library.
+    SHARED
+
+    # Provides a relative path to your source file(s).
+    simplex-api.c)
+
+# Searches for a specified prebuilt library and stores the path as a
+# variable. Because CMake includes system libraries in the search path by
+# default, you only need to specify the name of the public NDK library
+# you want to add. CMake verifies that the library exists before
+# completing its build.
+
+find_library( # Sets the name of the path variable.
+    log-lib
+
+    # Specifies the name of the NDK library that
+    # you want CMake to locate.
+    log)
+
+find_library( # Sets the name of the path variable.
+    c-lib
+
+    # Specifies the name of the NDK library that
+    # you want CMake to locate.
+    c
+    NAMES libc.so
+    REQUIRED)
+
+add_library( simplex SHARED IMPORTED )
+set_target_properties( simplex PROPERTIES IMPORTED_LOCATION
+    ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libsimplex.so)
+
+add_library( support SHARED IMPORTED )
+set_target_properties( support PROPERTIES IMPORTED_LOCATION
+    ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libsupport.so)
+
+
+# Specifies libraries CMake should link to your target library. You
+# can link multiple libraries, such as libraries you define in this
+# build script, prebuilt third-party libraries, or system libraries.
+
+target_link_libraries( # Specifies the target library.
+    app-lib
+
+    simplex support
+
+    # Links the target library to the log library
+    # included in the NDK.
+    ${log-lib})
@@ -0,0 +1,72 @@
+#include <jni.h>
+
+// from the RTS
+void hs_init(int * argc, char **argv[]);
+
+// from android-support
+void setLineBuffering(void);
+int pipe_std_to_socket(const char * name);
+
+JNIEXPORT jint JNICALL
+Java_chat_simplex_app_MainActivityKt_pipeStdOutToSocket(JNIEnv *env, __unused jclass clazz, jstring socket_name) {
+    const char *name = (*env)->GetStringUTFChars(env, socket_name, JNI_FALSE);
+    int ret = pipe_std_to_socket(name);
+    (*env)->ReleaseStringUTFChars(env, socket_name, name);
+    return ret;
+}
+
+JNIEXPORT void JNICALL
+Java_chat_simplex_app_MainActivityKt_initHS(__unused JNIEnv *env, __unused jclass clazz) {
+    hs_init(NULL, NULL);
+    setLineBuffering();
+}
+
+// from simplex-chat
+typedef void* chat_store;
+typedef void* controller;
+
+extern chat_store chat_init_store(const char * path);
+extern char *chat_get_user(chat_store store);
+extern char *chat_create_user(chat_store store, const char *data);
+extern controller chat_start(chat_store store);
+extern char *chat_send_cmd(controller ctl, const char *cmd);
+extern char *chat_recv_msg(controller ctl);
+
+JNIEXPORT jlong JNICALL
+Java_chat_simplex_app_MainActivityKt_chatInit(JNIEnv *env, __unused jclass clazz, jstring datadir) {
+    const char *_data = (*env)->GetStringUTFChars(env, datadir, JNI_FALSE);
+    jlong res = (jlong)chat_init_store(_data);
+    (*env)->ReleaseStringUTFChars(env, datadir, _data);
+    return res;
+}
+
+JNIEXPORT jstring JNICALL
+Java_chat_simplex_app_MainActivityKt_chatGetUser(JNIEnv *env, __unused jclass clazz, jlong controller) {
+    return (*env)->NewStringUTF(env, chat_get_user((void*)controller));
+}
+
+JNIEXPORT jstring JNICALL
+Java_chat_simplex_app_MainActivityKt_chatCreateUser(JNIEnv *env, __unused jclass clazz, jlong controller, jstring data) {
+    const char *_data = (*env)->GetStringUTFChars(env, data, JNI_FALSE);
+    jstring res = (*env)->NewStringUTF(env, chat_create_user((void*)controller, _data));
+    (*env)->ReleaseStringUTFChars(env, data, _data);
+    return res;
+}
+
+JNIEXPORT jlong JNICALL
+Java_chat_simplex_app_MainActivityKt_chatStart(JNIEnv *env, jclass clazz, jlong controller) {
+    return (jlong)chat_start((void*)controller);
+}
+
+JNIEXPORT jstring JNICALL
+Java_chat_simplex_app_MainActivityKt_chatSendCmd(JNIEnv *env, __unused jclass clazz, jlong controller, jstring msg) {
+    const char *_msg = (*env)->GetStringUTFChars(env, msg, JNI_FALSE);
+    jstring res = (*env)->NewStringUTF(env, chat_send_cmd((void*)controller, _msg));
+    (*env)->ReleaseStringUTFChars(env, msg, _msg);
+    return res;
+}
+
+JNIEXPORT jstring JNICALL
+Java_chat_simplex_app_MainActivityKt_chatRecvMsg(JNIEnv *env, __unused jclass clazz, jlong controller) {
+    return (*env)->NewStringUTF(env, chat_recv_msg((void*)controller));
+}
@@ -0,0 +1,123 @@
+package chat.simplex.app
+
+import android.net.LocalServerSocket
+import android.os.Bundle
+import android.util.Log
+import android.view.inputmethod.EditorInfo
+import android.widget.ScrollView
+import android.widget.TextView
+import androidx.appcompat.app.AppCompatActivity
+import androidx.appcompat.widget.AppCompatEditText
+import java.io.BufferedReader
+import java.io.InputStreamReader
+import java.lang.ref.WeakReference
+import java.util.*
+import java.util.concurrent.Semaphore
+import kotlin.concurrent.thread
+
+// ghc's rts
+external fun initHS()
+// android-support
+external fun pipeStdOutToSocket(socketName: String) : Int
+
+// simplex-chat
+typealias Store = Long
+typealias Controller = Long
+external fun chatInit(filesDir: String): Store
+external fun chatGetUser(controller: Store) : String
+external fun chatCreateUser(controller: Store, data: String) : String
+external fun chatStart(controller: Store) : Controller
+external fun chatSendCmd(controller: Controller, msg: String) : String
+external fun chatRecvMsg(controller: Controller) : String
+
+class MainActivity : AppCompatActivity() {
+  override fun onCreate(savedInstanceState: Bundle?) {
+    weakActivity = WeakReference(this)
+
+    super.onCreate(savedInstanceState)
+    setContentView(R.layout.activity_main)
+
+    val store : Store = chatInit(this.applicationContext.filesDir.toString())
+    // create user if needed
+    if(chatGetUser(store) == "{}") {
+      chatCreateUser(store, """
+                    {"displayName": "test", "fullName": "android test"}
+                    """.trimIndent())
+    }
+    Log.d("SIMPLEX (user)", chatGetUser(store))
+
+    val controller = chatStart(store)
+
+    val cmdinput = this.findViewById<AppCompatEditText>(R.id.cmdInput)
+
+    cmdinput.setOnEditorActionListener { _, actionId, _ ->
+      when (actionId) {
+        EditorInfo.IME_ACTION_SEND -> {
+          Log.d("SIMPLEX SEND", chatSendCmd(controller, cmdinput.text.toString()))
+          cmdinput.text?.clear()
+          true
+        }
+        else -> false
+      }
+    }
+
+    thread(name="receiver") {
+      val chatlog = FifoQueue<String>(500)
+      while(true) {
+        val msg = chatRecvMsg(controller)
+        Log.d("SIMPLEX RECV", msg)
+        chatlog.add(msg)
+        val currentText = chatlog.joinToString("\n")
+        weakActivity.get()?.runOnUiThread {
+          val log = weakActivity.get()?.findViewById<TextView>(R.id.chatlog)
+          val scroll = weakActivity.get()?.findViewById<ScrollView>(R.id.scroller)
+          log?.text = currentText
+          scroll?.scrollTo(0, scroll.getChildAt(0).height)
+        }
+      }
+    }
+  }
+
+  companion object {
+    lateinit var weakActivity : WeakReference<MainActivity>
+    init {
+      val socketName = "local.socket.address.listen.native.cmd2"
+
+      val s = Semaphore(0)
+      thread(name="stdout/stderr pipe") {
+        Log.d("SIMPLEX", "starting server")
+        val server = LocalServerSocket(socketName)
+        Log.d("SIMPLEX", "started server")
+        s.release()
+        val receiver = server.accept()
+        Log.d("SIMPLEX", "started receiver")
+        val logbuffer = FifoQueue<String>(500)
+        if (receiver != null) {
+          val inStream = receiver.inputStream
+          val inStreamReader = InputStreamReader(inStream)
+          val input = BufferedReader(inStreamReader)
+
+          while(true) {
+            val line = input.readLine() ?: break
+            Log.d("SIMPLEX (stdout/stderr)", line)
+            logbuffer.add(line)
+          }
+        }
+      }
+
+      System.loadLibrary("app-lib")
+
+      s.acquire()
+      pipeStdOutToSocket(socketName)
+
+      initHS()
+    }
+  }
+}
+
+class FifoQueue<E>(private var capacity: Int) : LinkedList<E>() {
+  override fun add(element: E): Boolean {
+    if(size > capacity) removeFirst()
+    return super.add(element)
+  }
+}
@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+  xmlns:aapt="http://schemas.android.com/aapt"
+  android:width="108dp"
+  android:height="108dp"
+  android:viewportWidth="108"
+  android:viewportHeight="108">
+  <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+    <aapt:attr name="android:fillColor">
+      <gradient
+        android:endX="85.84757"
+        android:endY="92.4963"
+        android:startX="42.9492"
+        android:startY="49.59793"
+        android:type="linear">
+        <item
+          android:color="#44000000"
+          android:offset="0.0" />
+        <item
+          android:color="#00000000"
+          android:offset="1.0" />
+      </gradient>
+    </aapt:attr>
+  </path>
+  <path
+    android:fillColor="#FFFFFF"
+    android:fillType="nonZero"
+    android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+    android:strokeWidth="1"
+    android:strokeColor="#00000000" />
+</vector>
@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+  android:width="108dp"
+  android:height="108dp"
+  android:viewportWidth="108"
+  android:viewportHeight="108">
+  <path
+    android:fillColor="#3DDC84"
+    android:pathData="M0,0h108v108h-108z" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M9,0L9,108"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M19,0L19,108"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M29,0L29,108"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M39,0L39,108"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M49,0L49,108"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M59,0L59,108"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M69,0L69,108"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M79,0L79,108"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M89,0L89,108"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M99,0L99,108"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M0,9L108,9"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M0,19L108,19"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M0,29L108,29"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M0,39L108,39"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M0,49L108,49"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M0,59L108,59"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M0,69L108,69"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M0,79L108,79"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M0,89L108,89"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M0,99L108,99"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M19,29L89,29"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M19,39L89,39"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M19,49L89,49"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M19,59L89,59"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M19,69L89,69"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M19,79L89,79"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M29,19L29,89"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M39,19L39,89"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M49,19L49,89"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M59,19L59,89"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M69,19L69,89"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+  <path
+    android:fillColor="#00000000"
+    android:pathData="M79,19L79,89"
+    android:strokeWidth="0.8"
+    android:strokeColor="#33FFFFFF" />
+</vector>
@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+  xmlns:app="http://schemas.android.com/apk/res-auto"
+  xmlns:tools="http://schemas.android.com/tools"
+  android:layout_width="match_parent"
+  android:layout_height="match_parent"
+  tools:context=".MainActivity">
+
+  <EditText
+    android:id="@+id/cmdInput"
+    android:layout_width="0dp"
+    android:layout_height="48dp"
+    android:layout_marginStart="16dp"
+    android:layout_marginEnd="16dp"
+    android:layout_marginBottom="16dp"
+    android:autofillHints=""
+    android:ems="10"
+    android:imeOptions="actionSend"
+    android:inputType="textPersonName"
+    app:layout_constraintBottom_toBottomOf="parent"
+    app:layout_constraintEnd_toEndOf="parent"
+    app:layout_constraintStart_toStartOf="parent"
+    tools:ignore="SpeakableTextPresentCheck" />
+
+  <ScrollView
+    android:id="@+id/scroller"
+    android:layout_width="0dp"
+    android:layout_height="0dp"
+    android:layout_marginStart="16dp"
+    android:layout_marginTop="16dp"
+    android:layout_marginEnd="16dp"
+    android:layout_marginBottom="16dp"
+    app:layout_constraintBottom_toTopOf="@+id/cmdInput"
+    app:layout_constraintEnd_toEndOf="parent"
+    app:layout_constraintStart_toStartOf="parent"
+    app:layout_constraintTop_toTopOf="parent">
+
+    <LinearLayout
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:orientation="vertical">
+
+      <TextView
+        android:id="@+id/chatlog"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+    </LinearLayout>
+  </ScrollView>
+</androidx.constraintlayout.widget.ConstraintLayout>
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+  <background android:drawable="@drawable/ic_launcher_background" />
+  <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+  <background android:drawable="@drawable/ic_launcher_background" />
+  <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+  <!-- Base application theme. -->
+  <style name="Theme.SimpleX" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+    <!-- Primary brand color. -->
+    <item name="colorPrimary">@color/purple_200</item>
+    <item name="colorPrimaryVariant">@color/purple_700</item>
+    <item name="colorOnPrimary">@color/black</item>
+    <!-- Secondary brand color. -->
+    <item name="colorSecondary">@color/teal_200</item>
+    <item name="colorSecondaryVariant">@color/teal_200</item>
+    <item name="colorOnSecondary">@color/black</item>
+    <!-- Status bar color. -->
+    <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+    <!-- Customize your theme here. -->
+  </style>
+</resources>
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <color name="purple_200">#FFBB86FC</color>
+  <color name="purple_500">#FF6200EE</color>
+  <color name="purple_700">#FF3700B3</color>
+  <color name="teal_200">#FF03DAC5</color>
+  <color name="teal_700">#FF018786</color>
+  <color name="black">#FF000000</color>
+  <color name="white">#FFFFFFFF</color>
+</resources>
@@ -0,0 +1,3 @@
+<resources>
+  <string name="app_name">SimpleX</string>
+</resources>
@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+  <!-- Base application theme. -->
+  <style name="Theme.SimpleX" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+    <!-- Primary brand color. -->
+    <item name="colorPrimary">@color/purple_500</item>
+    <item name="colorPrimaryVariant">@color/purple_700</item>
+    <item name="colorOnPrimary">@color/white</item>
+    <!-- Secondary brand color. -->
+    <item name="colorSecondary">@color/teal_200</item>
+    <item name="colorSecondaryVariant">@color/teal_700</item>
+    <item name="colorOnSecondary">@color/black</item>
+    <!-- Status bar color. -->
+    <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+    <!-- Customize your theme here. -->
+  </style>
+</resources>
@@ -0,0 +1,17 @@
+package chat.simplex.app
+
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+  @Test
+  fun addition_isCorrect() {
+    assertEquals(4, 2 + 2)
+  }
+}
@@ -0,0 +1,18 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+    repositories {
+        google()
+        mavenCentral()
+    }
+    dependencies {
+        classpath "com.android.tools.build:gradle:7.0.4"
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.6.10"
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
@@ -0,0 +1,21 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app"s APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Automatically convert third-party libraries to use AndroidX
+android.enableJetifier=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
@@ -0,0 +1,6 @@
+#Fri Jan 21 23:13:54 GMT 2022
+distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-bin.zip
+distributionPath=wrapper/dists
+zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
@@ -0,0 +1,185 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"
@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
@@ -0,0 +1,10 @@
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+        jcenter() // Warning: this repository is going to shut down soon
+    }
+}
+rootProject.name = "SimpleX"
+include ':app'
@@ -0,0 +1,67 @@
+## User settings
+xcuserdata/
+
+## Obj-C/Swift specific
+*.hmap
+
+## App packaging
+*.ipa
+*.dSYM.zip
+*.dSYM
+
+# Swift Package Manager
+#
+# Add this line if you want to avoid checking in source code from Swift Package Manager dependencies.
+# Packages/
+# Package.pins
+# Package.resolved
+# *.xcodeproj
+#
+# Xcode automatically generates this directory with a .xcworkspacedata file and xcuserdata
+# hence it is not needed unless you have added a package configuration file to your project
+# .swiftpm
+
+.build/
+
+# CocoaPods
+#
+# We recommend against adding the Pods directory to your .gitignore. However
+# you should judge for yourself, the pros and cons are mentioned at:
+# https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
+#
+# Pods/
+#
+# Add this line if you want to avoid checking in source code from the Xcode workspace
+# *.xcworkspace
+
+# Carthage
+#
+# Add this line if you want to avoid checking in source code from Carthage dependencies.
+# Carthage/Checkouts
+
+Carthage/Build/
+
+# Accio dependency management
+Dependencies/
+.accio/
+
+# fastlane
+#
+# It is recommended to not store the screenshots in the git repo.
+# Instead, use fastlane to re-generate the screenshots whenever they are needed.
+# For more information about the recommended setup visit:
+# https://docs.fastlane.tools/best-practices/source-control/#source-control
+
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots/**/*.png
+fastlane/test_output
+
+# Code Injection
+#
+# After new code Injection tools there's a generated folder /iOSInjectionProject
+# https://github.com/johnno1962/injectionforxcode
+
+iOSInjectionProject/
+
+Libraries/
@@ -0,0 +1,23 @@
+{
+  "colors" : [
+    {
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "1.000",
+          "green" : "0.533",
+          "red" : "0.000"
+        }
+      },
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  },
+  "properties" : {
+    "localizable" : true
+  }
+}
@@ -0,0 +1,172 @@
+{
+  "images" : [
+    {
+      "filename" : "Icon-App-20x20@2x-1.png",
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "20x20"
+    },
+    {
+      "filename" : "Icon-App-20x20@3x.png",
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "20x20"
+    },
+    {
+      "filename" : "Icon-App-29x29@1x.png",
+      "idiom" : "iphone",
+      "scale" : "1x",
+      "size" : "29x29"
+    },
+    {
+      "filename" : "Icon-App-29x29@2x.png",
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "29x29"
+    },
+    {
+      "filename" : "Icon-App-29x29@3x.png",
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "29x29"
+    },
+    {
+      "filename" : "Icon-App-40x40@2x.png",
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "40x40"
+    },
+    {
+      "filename" : "Icon-App-40x40@3x.png",
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "40x40"
+    },
+    {
+      "filename" : "Icon-App-60x60@2x.png",
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "60x60"
+    },
+    {
+      "filename" : "Icon-App-60x60@3x.png",
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "60x60"
+    },
+    {
+      "filename" : "Icon-App-20x20@1x.png",
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "20x20"
+    },
+    {
+      "filename" : "Icon-App-20x20@2x.png",
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "20x20"
+    },
+    {
+      "filename" : "Icon-App-29x29@1x-1.png",
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "29x29"
+    },
+    {
+      "filename" : "Icon-App-29x29@2x-1.png",
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "29x29"
+    },
+    {
+      "filename" : "Icon-App-40x40@1x.png",
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "40x40"
+    },
+    {
+      "filename" : "Icon-App-40x40@2x-1.png",
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "40x40"
+    },
+    {
+      "filename" : "Icon-App-76x76@1x.png",
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "76x76"
+    },
+    {
+      "filename" : "Icon-App-76x76@2x.png",
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "76x76"
+    },
+    {
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "83.5x83.5"
+    },
+    {
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "idiom" : "ios-marketing",
+      "scale" : "1x",
+      "size" : "1024x1024"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "16x16"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "16x16"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "32x32"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "32x32"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "128x128"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "128x128"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "256x256"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "256x256"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "512x512"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "512x512"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "filename" : "github32px.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "github64px.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "github64px-1.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "filename" : "logo-2.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "logo-1.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "logo.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
@@ -0,0 +1,52 @@
+//
+//  ContentView.swift
+//  Shared
+//
+//  Created by Evgeny Poberezkin on 17/01/2022.
+//
+
+import SwiftUI
+
+struct ContentView: View {
+    @EnvironmentObject var chatModel: ChatModel
+    @State private var showNotificationAlert = false
+
+    var body: some View {
+        if let user = chatModel.currentUser {
+            ChatListView(user: user)
+                .onAppear {
+                    do {
+                        try apiStartChat()
+                        chatModel.chats = try apiGetChats()
+                    } catch {
+                        fatalError("Failed to start or load chats: \(error)")
+                    }
+                    ChatReceiver.shared.start()
+                    NtfManager.shared.requestAuthorization(onDeny: {
+                        showNotificationAlert = true
+                    })
+                }
+                .alert(isPresented : $showNotificationAlert){
+                     Alert(
+                        title: Text("Notification are disabled!"),
+                         message: Text("Please open settings to enable"),
+                         primaryButton: .default(Text("Open Settings")) {
+                             DispatchQueue.main.async {
+                                 UIApplication.shared.open(URL(string: UIApplication.openSettingsURLString)!, options: [:], completionHandler: nil)
+                             }
+                         },
+                         secondaryButton: .cancel()
+                     )
+                }
+        } else {
+            WelcomeView()
+        }
+    }
+}
+
+
+//struct ContentView_Previews: PreviewProvider {
+//    static var previews: some View {
+//        ContentView(text: "Hello!")
+//    }
+//}
@@ -0,0 +1,80 @@
+//
+//  BGManager.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 08/02/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import Foundation
+import BackgroundTasks
+
+private let receiveTaskId = "chat.simplex.app.receive"
+
+// TCP timeout + 2 sec
+private let waitForMessages: TimeInterval = 6
+
+private let bgRefreshInterval: TimeInterval = 450
+
+class BGManager {
+    static let shared = BGManager()
+    var chatReceiver: ChatReceiver?
+    var bgTimer: Timer?
+    var completed = false
+
+    func register() {
+        logger.debug("BGManager.register")
+        BGTaskScheduler.shared.register(forTaskWithIdentifier: receiveTaskId, using: nil) { task in
+            self.handleRefresh(task as! BGAppRefreshTask)
+        }
+    }
+
+    func schedule() {
+        logger.debug("BGManager.schedule")
+        let request = BGAppRefreshTaskRequest(identifier: receiveTaskId)
+        request.earliestBeginDate = Date(timeIntervalSinceNow: bgRefreshInterval)
+        do {
+            try BGTaskScheduler.shared.submit(request)
+        } catch {
+            logger.error("BGManager.schedule error: \(error.localizedDescription)")
+        }
+    }
+
+    private func handleRefresh(_ task: BGAppRefreshTask) {
+        logger.debug("BGManager.handleRefresh")
+        schedule()
+        self.completed = false
+
+        let completeTask: (String) -> Void = { reason in
+            logger.debug("BGManager.handleRefresh completeTask: \(reason)")
+            if !self.completed {
+                self.completed = true
+                self.chatReceiver?.stop()
+                self.chatReceiver = nil
+                self.bgTimer?.invalidate()
+                self.bgTimer = nil
+                task.setTaskCompleted(success: true)
+            }
+        }
+
+        task.expirationHandler = { completeTask("expirationHandler") }
+        DispatchQueue.main.async {
+            initializeChat()
+            if ChatModel.shared.currentUser == nil {
+                completeTask("no current user")
+                return
+            }
+            logger.debug("BGManager.handleRefresh: starting chat")
+            let cr = ChatReceiver()
+            self.chatReceiver = cr
+            cr.start()
+            RunLoop.current.add(Timer(timeInterval: 2, repeats: true) { timer in
+                logger.debug("BGManager.handleRefresh: timer")
+                self.bgTimer = timer
+                if cr.lastMsgTime.distance(to: Date.now) >= waitForMessages {
+                    completeTask("timer (no messages after \(waitForMessages) seconds)")
+                }
+            }, forMode: .default)
+        }
+    }
+}
@@ -0,0 +1,541 @@
+//
+//  ChatModel.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 22/01/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import Foundation
+import Combine
+import SwiftUI
+
+final class ChatModel: ObservableObject {
+    @Published var currentUser: User?
+    // list of chat "previews"
+    @Published var chats: [Chat] = []
+    // current chat
+    @Published var chatId: String?
+    @Published var chatItems: [ChatItem] = []
+    // items in the terminal view
+    @Published var terminalItems: [TerminalItem] = []
+    @Published var userAddress: String?
+    @Published var appOpenUrl: URL?
+    @Published var connectViaUrl = false
+    static let shared = ChatModel()
+
+    func hasChat(_ id: String) -> Bool {
+        chats.first(where: { $0.id == id }) != nil
+    }
+
+    func getChat(_ id: String) -> Chat? {
+        chats.first(where: { $0.id == id })
+    }
+
+    private func getChatIndex(_ id: String) -> Int? {
+        chats.firstIndex(where: { $0.id == id })
+    }
+
+    func addChat(_ chat: Chat) {
+        withAnimation {
+            chats.insert(chat, at: 0)
+        }
+    }
+
+    func updateChatInfo(_ cInfo: ChatInfo) {
+        if let ix = getChatIndex(cInfo.id) {
+            chats[ix].chatInfo = cInfo
+        }
+    }
+
+    func updateContact(_ contact: Contact) {
+        let cInfo = ChatInfo.direct(contact: contact)
+        if hasChat(contact.id) {
+            updateChatInfo(cInfo)
+        } else {
+            addChat(Chat(chatInfo: cInfo, chatItems: []))
+        }
+    }
+
+    func updateNetworkStatus(_ contact: Contact, _ status: Chat.NetworkStatus) {
+        if let ix = getChatIndex(contact.id) {
+            chats[ix].serverInfo.networkStatus = status
+        }
+    }
+
+    func replaceChat(_ id: String, _ chat: Chat) {
+        if let ix = chats.firstIndex(where: { $0.id == id }) {
+            chats[ix] = chat
+        } else {
+            // invalid state, correcting
+            chats.insert(chat, at: 0)
+        }
+    }
+
+    func addChatItem(_ cInfo: ChatInfo, _ cItem: ChatItem) {
+        if let ix = chats.firstIndex(where: { $0.id == cInfo.id }) {
+            chats[ix].chatItems = [cItem]
+            if ix > 0 {
+                if chatId == nil {
+                    withAnimation { popChat(ix) }
+                } else {
+                    DispatchQueue.main.async { self.popChat(ix) }
+                }
+            }
+        }
+        if chatId == cInfo.id {
+            withAnimation { chatItems.append(cItem) }
+        }
+    }
+
+    private func popChat(_ ix: Int) {
+        let chat = chats.remove(at: ix)
+        chats.insert(chat, at: 0)
+    }
+
+    func removeChat(_ id: String) {
+        withAnimation {
+            chats.removeAll(where: { $0.id == id })
+        }
+    }
+}
+
+struct User: Decodable, NamedChat {
+    var userId: Int64
+    var userContactId: Int64
+    var localDisplayName: ContactName
+    var profile: Profile
+    var activeUser: Bool
+
+//    internal init(userId: Int64, userContactId: Int64, localDisplayName: ContactName, profile: Profile, activeUser: Bool) {
+//        self.userId = userId
+//        self.userContactId = userContactId
+//        self.localDisplayName = localDisplayName
+//        self.profile = profile
+//        self.activeUser = activeUser
+//    }
+
+    var displayName: String { get { profile.displayName } }
+
+    var fullName: String { get { profile.fullName } }
+
+    static let sampleData = User(
+        userId: 1,
+        userContactId: 1,
+        localDisplayName: "alice",
+        profile: Profile.sampleData,
+        activeUser: true
+    )
+}
+
+typealias ContactName = String
+
+typealias GroupName = String
+
+struct Profile: Codable, NamedChat {
+    var displayName: String
+    var fullName: String
+
+    static let sampleData = Profile(
+        displayName: "alice",
+        fullName: "Alice"
+    )
+}
+
+enum ChatType: String {
+    case direct = "@"
+    case group = "#"
+    case contactRequest = "<@"
+}
+
+protocol NamedChat {
+    var displayName: String { get }
+    var fullName: String { get }
+}
+
+extension NamedChat {
+    var chatViewName: String {
+        get { displayName + (fullName == "" || fullName == displayName ? "" : " / \(fullName)") }
+    }
+}
+
+typealias ChatId = String
+
+enum ChatInfo: Identifiable, Decodable, NamedChat {
+    case direct(contact: Contact)
+    case group(groupInfo: GroupInfo)
+    case contactRequest(contactRequest: UserContactRequest)
+    
+    var localDisplayName: String {
+        get {
+            switch self {
+            case let .direct(contact): return contact.localDisplayName
+            case let .group(groupInfo): return groupInfo.localDisplayName
+            case let .contactRequest(contactRequest): return contactRequest.localDisplayName
+            }
+        }
+    }
+
+    var displayName: String {
+        get {
+            switch self {
+            case let .direct(contact): return contact.displayName
+            case let .group(groupInfo): return groupInfo.displayName
+            case let .contactRequest(contactRequest): return contactRequest.displayName
+            }
+        }
+    }
+
+    var fullName: String {
+        get {
+            switch self {
+            case let .direct(contact): return contact.fullName
+            case let .group(groupInfo): return groupInfo.fullName
+            case let .contactRequest(contactRequest): return contactRequest.fullName
+            }
+        }
+    }
+
+    var id: ChatId {
+        get {
+            switch self {
+            case let .direct(contact): return contact.id
+            case let .group(groupInfo): return groupInfo.id
+            case let .contactRequest(contactRequest): return contactRequest.id
+            }
+        }
+    }
+
+    var chatType: ChatType {
+        get {
+            switch self {
+            case .direct: return .direct
+            case .group: return .group
+            case .contactRequest: return .contactRequest
+            }
+        }
+    }
+    
+    var apiId: Int64 {
+        get {
+            switch self {
+            case let .direct(contact): return contact.apiId
+            case let .group(groupInfo): return groupInfo.apiId
+            case let .contactRequest(contactRequest): return contactRequest.apiId
+            }
+        }
+    }
+
+    var createdAt: Date {
+        switch self {
+        case let .direct(contact): return contact.createdAt
+        case let .group(groupInfo): return groupInfo.createdAt
+        case let .contactRequest(contactRequest): return contactRequest.createdAt
+        }
+    }
+
+    struct SampleData {
+        var direct: ChatInfo
+        var group: ChatInfo
+        var contactRequest: ChatInfo
+    }
+
+    static var sampleData: ChatInfo.SampleData = SampleData(
+        direct: ChatInfo.direct(contact: Contact.sampleData),
+        group: ChatInfo.group(groupInfo: GroupInfo.sampleData),
+        contactRequest: ChatInfo.contactRequest(contactRequest: UserContactRequest.sampleData)
+    )
+}
+
+final class Chat: ObservableObject, Identifiable {
+    @Published var chatInfo: ChatInfo
+    @Published var chatItems: [ChatItem]
+    @Published var serverInfo = ServerInfo(networkStatus: .unknown)
+
+    struct ServerInfo: Decodable {
+        var networkStatus: NetworkStatus
+    }
+
+    enum NetworkStatus: Decodable, Equatable {
+        case unknown
+        case connected
+        case disconnected
+        case error(String)
+
+        var statusString: String {
+            get {
+                switch self {
+                case .connected: return "Server connected"
+                case let .error(err): return "Connecting server… (error: \(err))"
+                default: return "Connecting server…"
+                }
+            }
+        }
+
+        var statusExplanation: String {
+            get {
+                switch self {
+                case .connected: return "You are connected to the server you use to receve messages from this contact."
+                case let .error(err): return "Trying to connect to the server you use to receve messages from this contact (error: \(err))."
+                default: return "Trying to connect to the server you use to receve messages from this contact."
+                }
+            }
+        }
+
+        var imageName: String {
+            get {
+                switch self {
+                case .unknown: return "circle.dotted"
+                case .connected: return "circle.fill"
+                case .disconnected: return "ellipsis.circle.fill"
+                case .error: return "exclamationmark.circle.fill"
+                }
+            }
+        }
+    }
+
+    init(_ cData: ChatData) {
+        self.chatInfo = cData.chatInfo
+        self.chatItems = cData.chatItems
+    }
+
+    init(chatInfo: ChatInfo, chatItems: [ChatItem] = []) {
+        self.chatInfo = chatInfo
+        self.chatItems = chatItems
+    }
+
+    var id: ChatId { get { chatInfo.id } }
+}
+
+struct ChatData: Decodable, Identifiable {
+    var chatInfo: ChatInfo
+    var chatItems: [ChatItem]
+
+    var id: ChatId { get { chatInfo.id } }
+}
+
+struct Contact: Identifiable, Decodable, NamedChat {
+    var contactId: Int64
+    var localDisplayName: ContactName
+    var profile: Profile
+    var activeConn: Connection
+    var viaGroup: Int64?
+    var createdAt: Date
+
+    var id: ChatId { get { "@\(contactId)" } }
+    var apiId: Int64 { get { contactId } }
+    var ready: Bool { get { activeConn.connStatus == "ready" || activeConn.connStatus == "snd-ready" } }
+    var displayName: String { get { profile.displayName } }
+    var fullName: String { get { profile.fullName } }
+
+    static let sampleData = Contact(
+        contactId: 1,
+        localDisplayName: "alice",
+        profile: Profile.sampleData,
+        activeConn: Connection.sampleData,
+        createdAt: .now
+    )
+}
+
+struct Connection: Decodable {
+    var connStatus: String
+
+    static let sampleData = Connection(connStatus: "ready")
+}
+
+struct UserContactRequest: Decodable, NamedChat {
+    var contactRequestId: Int64
+    var localDisplayName: ContactName
+    var profile: Profile
+    var createdAt: Date
+
+    var id: ChatId { get { "<@\(contactRequestId)" } }
+    var apiId: Int64 { get { contactRequestId } }
+    var displayName: String { get { profile.displayName } }
+    var fullName: String { get { profile.fullName } }
+
+    static let sampleData = UserContactRequest(
+        contactRequestId: 1,
+        localDisplayName: "alice",
+        profile: Profile.sampleData,
+        createdAt: .now
+    )
+}
+
+struct GroupInfo: Identifiable, Decodable, NamedChat {
+    var groupId: Int64
+    var localDisplayName: GroupName
+    var groupProfile: GroupProfile
+    var createdAt: Date
+    
+    var id: ChatId { get { "#\(groupId)" } }
+    var apiId: Int64 { get { groupId } }
+    var displayName: String { get { groupProfile.displayName } }
+    var fullName: String { get { groupProfile.fullName } }
+
+    static let sampleData = GroupInfo(
+        groupId: 1,
+        localDisplayName: "team",
+        groupProfile: GroupProfile.sampleData,
+        createdAt: .now
+    )
+}
+
+struct GroupProfile: Codable, NamedChat {
+    var displayName: String
+    var fullName: String
+
+    static let sampleData = GroupProfile(
+        displayName: "team",
+        fullName: "My Team"
+    )
+}
+
+struct GroupMember: Decodable {
+    var groupMemberId: Int64
+    var memberId: String
+//    var memberRole: GroupMemberRole
+//    var memberCategory: GroupMemberCategory
+//    var memberStatus: GroupMemberStatus
+//    var invitedBy: InvitedBy
+    var localDisplayName: ContactName
+    var memberProfile: Profile
+    var memberContactId: Int64?
+//    var activeConn: Connection?
+
+    static let sampleData = GroupMember(
+        groupMemberId: 1,
+        memberId: "abcd",
+        localDisplayName: "alice",
+        memberProfile: Profile.sampleData,
+        memberContactId: 1
+    )
+}
+
+struct AChatItem: Decodable {
+    var chatInfo: ChatInfo
+    var chatItem: ChatItem
+}
+
+struct ChatItem: Identifiable, Decodable {
+    var chatDir: CIDirection
+    var meta: CIMeta
+    var content: CIContent
+    
+    var id: Int64 { get { meta.itemId } }
+
+    static func getSample (_ id: Int64, _ dir: CIDirection, _ ts: Date, _ text: String) -> ChatItem {
+        ChatItem(
+           chatDir: dir,
+           meta: CIMeta.getSample(id, ts, text),
+           content: .sndMsgContent(msgContent: .text(text))
+       )
+    }
+}
+
+enum CIDirection: Decodable {
+    case directSnd
+    case directRcv
+    case groupSnd
+    case groupRcv(groupMember: GroupMember)
+
+    var sent: Bool {
+        get {
+            switch self {
+            case .directSnd: return true
+            case .directRcv: return false
+            case .groupSnd: return true
+            case .groupRcv: return false
+            }
+        }
+    }
+}
+
+struct CIMeta: Decodable {
+    var itemId: Int64
+    var itemTs: Date
+    var itemText: String
+    var createdAt: Date
+
+    static func getSample(_ id: Int64, _ ts: Date, _ text: String) -> CIMeta {
+        CIMeta(
+            itemId: id,
+            itemTs: ts,
+            itemText: text,
+            createdAt: ts
+        )
+    }
+}
+
+enum CIStatus: Decodable {
+    case sndNew
+    case sndSent
+    case sndErrorAuth
+    case sndError(agentErrorType: AgentErrorType)
+    case rcvNew
+    case rcvRead
+}
+
+enum CIContent: Decodable {
+    case sndMsgContent(msgContent: MsgContent)
+    case rcvMsgContent(msgContent: MsgContent)
+    // files etc.
+
+    var text: String {
+        get {
+            switch self {
+            case let .sndMsgContent(mc): return mc.text
+            case let .rcvMsgContent(mc): return mc.text
+            }
+        }
+    }
+}
+
+enum MsgContent {
+    case text(String)
+    case unknown(type: String, text: String)
+    case invalid(error: String)
+
+    var text: String {
+        get {
+            switch self {
+            case let .text(text): return text
+            case let .unknown(_, text): return text
+            case .invalid:  return "invalid"
+            }
+        }
+    }
+
+    var cmdString: String {
+        get {
+            switch self {
+            case let .text(text): return "text \(text)"
+            default: return ""
+            }
+        }
+    }
+
+    enum CodingKeys: String, CodingKey {
+        case type
+        case text
+    }
+}
+
+extension MsgContent: Decodable {
+    init(from decoder: Decoder) throws {
+        let container = try decoder.container(keyedBy: CodingKeys.self)
+        do {
+            let type = try container.decode(String.self, forKey: CodingKeys.type)
+            switch type {
+            case "text":
+                let text = try container.decode(String.self, forKey: CodingKeys.text)
+                self = .text(text)
+            default:
+                let text = try? container.decode(String.self, forKey: CodingKeys.text)
+                self = .unknown(type: type, text: text ?? "unknown message format")
+            }
+        } catch {
+            self = .invalid(error: String(describing: error))
+        }
+    }
+}
@@ -0,0 +1,38 @@
+//
+//  JSON.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 29/01/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import Foundation
+
+func getJSONDecoder() -> JSONDecoder {
+    let jd = JSONDecoder()
+    let fracSeconds = getDateFormatter("yyyy-MM-dd'T'HH:mm:ss.SSSZZZZZ")
+    let noFracSeconds = getDateFormatter("yyyy-MM-dd'T'HH:mm:ssZZZZZ")
+    jd.dateDecodingStrategy = .custom { decoder in
+        let container = try decoder.singleValueContainer()
+        let string = try container.decode(String.self)
+        if let date = fracSeconds.date(from: string) ?? noFracSeconds.date(from: string) {
+            return date
+        }
+        throw DecodingError.dataCorruptedError(in: container, debugDescription: "Invalid date: \(string)")
+    }
+    return jd
+}
+
+func getJSONEncoder() -> JSONEncoder {
+    let je = JSONEncoder()
+    je.dateEncodingStrategy = .iso8601
+    return je
+}
+
+private func getDateFormatter(_ format: String) -> DateFormatter {
+    let df = DateFormatter()
+    df.locale = Locale(identifier: "en_US_POSIX")
+    df.dateFormat = format
+    df.timeZone = TimeZone(secondsFromGMT: 0)
+    return df
+}
@@ -0,0 +1,199 @@
+//
+//  NtfManager.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 08/02/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import Foundation
+import UserNotifications
+import UIKit
+
+let ntfActionAccept = "NTF_ACT_ACCEPT"
+
+let ntfCategoryContactRequest = "NTF_CAT_CONTACT_REQUEST"
+let ntfCategoryContactConnected = "NTF_CAT_CONTACT_CONNECTED"
+let ntfCategoryMessageReceived = "NTF_CAT_MESSAGE_RECEIVED"
+
+let appNotificationId = "chat.simplex.app.notification"
+
+private let ntfTimeInterval: TimeInterval = 1
+
+class NtfManager: NSObject, UNUserNotificationCenterDelegate, ObservableObject {
+    static let shared = NtfManager()
+
+    private var granted = false
+    private var prevNtfTime: Dictionary<ChatId, Date> = [:]
+
+
+    // Handle notification when app is in background
+    func userNotificationCenter(_ center: UNUserNotificationCenter,
+                                didReceive response: UNNotificationResponse,
+                                withCompletionHandler handler: () -> Void) {
+        logger.debug("NtfManager.userNotificationCenter: didReceive")
+        let content = response.notification.request.content
+        let chatModel = ChatModel.shared
+        if content.categoryIdentifier == ntfCategoryContactRequest && response.actionIdentifier == ntfActionAccept,
+           let chatId = content.userInfo["chatId"] as? String,
+           case let .contactRequest(contactRequest) = chatModel.getChat(chatId)?.chatInfo {
+            acceptContactRequest(contactRequest)
+        } else {
+            chatModel.chatId = content.targetContentIdentifier
+        }
+        handler()
+    }
+
+    // Handle notification when the app is in foreground
+    func userNotificationCenter(_ center: UNUserNotificationCenter,
+                                willPresent notification: UNNotification,
+                                withCompletionHandler handler: (UNNotificationPresentationOptions) -> Void) {
+        logger.debug("NtfManager.userNotificationCenter: willPresent")
+        handler(presentationOptions(notification.request.content))
+    }
+
+    private func presentationOptions(_ content: UNNotificationContent) -> UNNotificationPresentationOptions {
+        let model = ChatModel.shared
+        if UIApplication.shared.applicationState == .active {
+            switch content.categoryIdentifier {
+            case ntfCategoryContactRequest:
+                return [.sound, .banner, .list]
+            case ntfCategoryContactConnected:
+                return model.chatId == nil ? [.sound, .list] : [.sound, .banner, .list]
+            case ntfCategoryMessageReceived:
+                if model.chatId == nil {
+                    // in the chat list
+                    return recentInTheSameChat(content) ? [] : [.sound, .list]
+                } else if model.chatId == content.targetContentIdentifier {
+                    // in the current chat
+                    return recentInTheSameChat(content) ? [] : [.sound, .list]
+                } else {
+                    // in another chat
+                    return recentInTheSameChat(content) ? [.banner, .list] : [.sound, .banner, .list]
+                }
+            default: return [.sound, .banner, .list]
+            }
+        } else {
+            return [.sound, .banner, .list]
+        }
+    }
+
+    private func recentInTheSameChat(_ content: UNNotificationContent) -> Bool {
+        let now = Date.now
+        if let chatId = content.targetContentIdentifier {
+            var res: Bool = false
+            if let t = prevNtfTime[chatId] { res = t.distance(to: now) < 30 }
+            prevNtfTime[chatId] = now
+            return res
+        }
+        return false
+    }
+
+    func registerCategories() {
+        logger.debug("NtfManager.registerCategories")
+        UNUserNotificationCenter.current().setNotificationCategories([
+            UNNotificationCategory(
+                identifier: ntfCategoryContactRequest,
+                actions: [UNNotificationAction(
+                    identifier: ntfActionAccept,
+                    title: "Accept"
+                )],
+                intentIdentifiers: [],
+                hiddenPreviewsBodyPlaceholder: "New contact request"
+            ),
+            UNNotificationCategory(
+                identifier: ntfCategoryContactConnected,
+                actions: [],
+                intentIdentifiers: [],
+                hiddenPreviewsBodyPlaceholder: "Contact is connected"
+            ),
+            UNNotificationCategory(
+                identifier: ntfCategoryMessageReceived,
+                actions: [],
+                intentIdentifiers: [],
+                hiddenPreviewsBodyPlaceholder: "New message"
+            )
+        ])
+    }
+
+    func requestAuthorization(onDeny handler: (()-> Void)? = nil) {
+        logger.debug("NtfManager.requestAuthorization")
+        let center = UNUserNotificationCenter.current()
+        center.getNotificationSettings { settings in
+            switch settings.authorizationStatus {
+            case .denied:
+                if let handler = handler { handler() }
+                return
+            case .authorized:
+                self.granted = true
+            default:
+                center.requestAuthorization(options: [.alert, .sound, .badge]) { granted, error in
+                    if let error = error {
+                        logger.error("NtfManager.requestAuthorization error \(error.localizedDescription)")
+                    } else {
+                        self.granted = granted
+                    }
+                }
+            }
+        }
+        center.delegate = self
+    }
+
+    func notifyContactRequest(_ contactRequest: UserContactRequest) {
+        logger.debug("NtfManager.notifyContactRequest")
+        addNotification(
+            categoryIdentifier: ntfCategoryContactRequest,
+            title: "\(contactRequest.displayName) wants to connect!",
+            body: "Accept contact request from \(contactRequest.chatViewName)?",
+            targetContentIdentifier: nil,
+            userInfo: ["chatId": contactRequest.id, "contactRequestId": contactRequest.apiId]
+        )
+    }
+
+    func notifyContactConnected(_ contact: Contact) {
+        logger.debug("NtfManager.notifyContactConnected")
+        addNotification(
+            categoryIdentifier: ntfCategoryContactConnected,
+            title: "\(contact.displayName) is connected!",
+            body: "You can now send messages to \(contact.chatViewName)",
+            targetContentIdentifier: contact.id
+//            userInfo: ["chatId": contact.id, "contactId": contact.apiId]
+        )
+    }
+
+    func notifyMessageReceived(_ cInfo: ChatInfo, _ cItem: ChatItem) {
+        logger.debug("NtfManager.notifyMessageReceived")
+        addNotification(
+            categoryIdentifier: ntfCategoryMessageReceived,
+            title: "\(cInfo.chatViewName):",
+            body: cItem.content.text,
+            targetContentIdentifier: cInfo.id
+//            userInfo: ["chatId": cInfo.id, "chatItemId": cItem.id]
+        )
+    }
+
+    private func addNotification(categoryIdentifier: String, title: String, subtitle: String? = nil, body: String? = nil,
+                                 targetContentIdentifier: String? = nil, userInfo: [AnyHashable : Any] = [:]) {
+        if !granted { return }
+        let content = UNMutableNotificationContent()
+        content.categoryIdentifier = categoryIdentifier
+        content.title = title
+        if let s = subtitle { content.subtitle = s }
+        if let s = body { content.body = s }
+        content.targetContentIdentifier = targetContentIdentifier
+        content.userInfo = userInfo
+        content.sound = .default
+//        content.interruptionLevel = .active
+//        content.relevanceScore = 0.5 // 0-1
+        let trigger = UNTimeIntervalNotificationTrigger(timeInterval: ntfTimeInterval, repeats: false)
+        let request = UNNotificationRequest(identifier: appNotificationId, content: content, trigger: trigger)
+        UNUserNotificationCenter.current().add(request) { error in
+            if let error = error { logger.error("addNotification error: \(error.localizedDescription)") }
+        }
+    }
+
+    func removeNotifications(_ ids : [String]){
+        UNUserNotificationCenter.current().removeDeliveredNotifications(withIdentifiers: ids)
+        UNUserNotificationCenter.current().removePendingNotificationRequests(withIdentifiers: ids)
+    }
+}
@@ -0,0 +1,630 @@
+//
+//  ChatAPI.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 27/01/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import Foundation
+import UIKit
+import Dispatch
+import BackgroundTasks
+
+private var chatController: chat_ctrl?
+private let jsonDecoder = getJSONDecoder()
+private let jsonEncoder = getJSONEncoder()
+
+enum ChatCommand {
+    case showActiveUser
+    case createActiveUser(profile: Profile)
+    case startChat
+    case apiGetChats
+    case apiGetChat(type: ChatType, id: Int64)
+    case apiSendMessage(type: ChatType, id: Int64, msg: MsgContent)
+    case addContact
+    case connect(connReq: String)
+    case apiDeleteChat(type: ChatType, id: Int64)
+    case updateProfile(profile: Profile)
+    case createMyAddress
+    case deleteMyAddress
+    case showMyAddress
+    case apiAcceptContact(contactReqId: Int64)
+    case apiRejectContact(contactReqId: Int64)
+    case string(String)
+
+    var cmdString: String {
+        get {
+            switch self {
+            case .showActiveUser: return "/u"
+            case let .createActiveUser(profile): return "/u \(profile.displayName) \(profile.fullName)"
+            case .startChat: return "/_start"
+            case .apiGetChats: return "/_get chats"
+            case let .apiGetChat(type, id): return "/_get chat \(type.rawValue)\(id) count=500"
+            case let .apiSendMessage(type, id, mc): return "/_send \(type.rawValue)\(id) \(mc.cmdString)"
+            case .addContact: return "/connect"
+            case let .connect(connReq): return "/connect \(connReq)"
+            case let .apiDeleteChat(type, id): return "/_delete \(type.rawValue)\(id)"
+            case let .updateProfile(profile): return "/profile \(profile.displayName) \(profile.fullName)"
+            case .createMyAddress: return "/address"
+            case .deleteMyAddress: return "/delete_address"
+            case .showMyAddress: return "/show_address"
+            case let .apiAcceptContact(contactReqId): return "/_accept \(contactReqId)"
+            case let .apiRejectContact(contactReqId): return "/_reject \(contactReqId)"
+            case let .string(str): return str
+            }
+        }
+    }
+}
+
+struct APIResponse: Decodable {
+    var resp: ChatResponse
+}
+
+enum ChatResponse: Decodable, Error {
+    case response(type: String, json: String)
+    case activeUser(user: User)
+    case chatStarted
+    case apiChats(chats: [ChatData])
+    case apiChat(chat: ChatData)
+    case invitation(connReqInvitation: String)
+    case sentConfirmation
+    case sentInvitation
+    case contactDeleted(contact: Contact)
+    case userProfileNoChange
+    case userProfileUpdated(fromProfile: Profile, toProfile: Profile)
+    case userContactLink(connReqContact: String)
+    case userContactLinkCreated(connReqContact: String)
+    case userContactLinkDeleted
+    case contactConnected(contact: Contact)
+    case receivedContactRequest(contactRequest: UserContactRequest)
+    case acceptingContactRequest(contact: Contact)
+    case contactRequestRejected
+    case contactUpdated(toContact: Contact)
+    case contactSubscribed(contact: Contact)
+    case contactDisconnected(contact: Contact)
+    case contactSubError(contact: Contact, chatError: ChatError)
+    case groupSubscribed(groupInfo: GroupInfo)
+    case groupEmpty(groupInfo: GroupInfo)
+    case userContactLinkSubscribed
+    case newChatItem(chatItem: AChatItem)
+    case chatCmdError(chatError: ChatError)
+    case chatError(chatError: ChatError)
+
+    var responseType: String {
+        get {
+            switch self {
+            case let .response(type, _): return "* \(type)"
+            case .activeUser: return "activeUser"
+            case .chatStarted: return "chatStarted"
+            case .apiChats: return "apiChats"
+            case .apiChat: return "apiChat"
+            case .invitation: return "invitation"
+            case .sentConfirmation: return "sentConfirmation"
+            case .sentInvitation: return "sentInvitation"
+            case .contactDeleted: return "contactDeleted"
+            case .userProfileNoChange: return "userProfileNoChange"
+            case .userProfileUpdated: return "userProfileNoChange"
+            case .userContactLink: return "userContactLink"
+            case .userContactLinkCreated: return "userContactLinkCreated"
+            case .userContactLinkDeleted: return "userContactLinkDeleted"
+            case .contactConnected: return "contactConnected"
+            case .receivedContactRequest: return "receivedContactRequest"
+            case .acceptingContactRequest: return "acceptingContactRequest"
+            case .contactRequestRejected: return "contactRequestRejected"
+            case .contactUpdated: return "contactUpdated"
+            case .contactSubscribed: return "contactSubscribed"
+            case .contactDisconnected: return "contactDisconnected"
+            case .contactSubError: return "contactSubError"
+            case .groupSubscribed: return "groupSubscribed"
+            case .groupEmpty: return "groupEmpty"
+            case .userContactLinkSubscribed: return "userContactLinkSubscribed"
+            case .newChatItem: return "newChatItem"
+            case .chatCmdError: return "chatCmdError"
+            case .chatError: return "chatError"
+            }
+        }
+    }
+    
+    var details: String {
+        get {
+            switch self {
+            case let .response(_, json): return json
+            case let .activeUser(user): return String(describing: user)
+            case .chatStarted: return noDetails
+            case let .apiChats(chats): return String(describing: chats)
+            case let .apiChat(chat): return String(describing: chat)
+            case let .invitation(connReqInvitation): return connReqInvitation
+            case .sentConfirmation: return noDetails
+            case .sentInvitation: return noDetails
+            case let .contactDeleted(contact): return String(describing: contact)
+            case .userProfileNoChange: return noDetails
+            case let .userProfileUpdated(_, toProfile): return String(describing: toProfile)
+            case let .userContactLink(connReq): return connReq
+            case let .userContactLinkCreated(connReq): return connReq
+            case .userContactLinkDeleted: return noDetails
+            case let .contactConnected(contact): return String(describing: contact)
+            case let .receivedContactRequest(contactRequest): return String(describing: contactRequest)
+            case let .acceptingContactRequest(contact): return String(describing: contact)
+            case .contactRequestRejected: return noDetails
+            case let .contactUpdated(toContact): return String(describing: toContact)
+            case let .contactSubscribed(contact): return String(describing: contact)
+            case let .contactDisconnected(contact): return String(describing: contact)
+            case let .contactSubError(contact, chatError): return "contact:\n\(String(describing: contact))\nerror:\n\(String(describing: chatError))"
+            case let .groupSubscribed(groupInfo): return String(describing: groupInfo)
+            case let .groupEmpty(groupInfo): return String(describing: groupInfo)
+            case .userContactLinkSubscribed: return noDetails
+            case let .newChatItem(chatItem): return String(describing: chatItem)
+            case let .chatCmdError(chatError): return String(describing: chatError)
+            case let .chatError(chatError): return String(describing: chatError)
+            }
+        }
+    }
+
+    private var noDetails: String { get { "\(responseType): no details" } }
+}
+
+enum TerminalItem: Identifiable {
+    case cmd(Date, ChatCommand)
+    case resp(Date, ChatResponse)
+
+    var id: Date {
+        get {
+            switch self {
+            case let .cmd(id, _): return id
+            case let .resp(id, _): return id
+            }
+        }
+    }
+
+    var label: String {
+        get {
+            switch self {
+            case let .cmd(_, cmd): return "> \(cmd.cmdString.prefix(30))"
+            case let .resp(_, resp): return "< \(resp.responseType)"
+            }
+        }
+    }
+
+    var details: String {
+        get {
+            switch self {
+            case let .cmd(_, cmd): return cmd.cmdString
+            case let .resp(_, resp): return resp.details
+            }
+        }
+    }
+}
+
+func chatSendCmd(_ cmd: ChatCommand) throws -> ChatResponse {
+    var c = cmd.cmdString.cString(using: .utf8)!
+    let resp = chatResponse(chat_send_cmd(getChatCtrl(), &c)!)
+    DispatchQueue.main.async {
+        ChatModel.shared.terminalItems.append(.cmd(.now, cmd))
+        ChatModel.shared.terminalItems.append(.resp(.now, resp))
+    }
+    return resp
+}
+
+func chatRecvMsg() throws -> ChatResponse {
+    chatResponse(chat_recv_msg(getChatCtrl())!)
+}
+
+func apiGetActiveUser() throws -> User? {
+    let _ = getChatCtrl()
+    let r = try chatSendCmd(.showActiveUser)
+    switch r {
+    case let .activeUser(user): return user
+    case .chatCmdError(.error(.noActiveUser)): return nil
+    default: throw r
+    }
+}
+
+func apiCreateActiveUser(_ p: Profile) throws -> User {
+    let r = try chatSendCmd(.createActiveUser(profile: p))
+    if case let .activeUser(user) = r { return user }
+    throw r
+}
+
+func apiStartChat() throws {
+    let r = try chatSendCmd(.startChat)
+    if case .chatStarted = r { return }
+    throw r
+}
+
+func apiGetChats() throws -> [Chat] {
+    let r = try chatSendCmd(.apiGetChats)
+    if case let .apiChats(chats) = r { return chats.map { Chat.init($0) } }
+    throw r
+}
+
+func apiGetChat(type: ChatType, id: Int64) throws -> Chat {
+    let r = try chatSendCmd(.apiGetChat(type: type, id: id))
+    if case let .apiChat(chat) = r { return Chat.init(chat) }
+    throw r
+}
+
+func apiSendMessage(type: ChatType, id: Int64, msg: MsgContent) throws -> ChatItem {
+    let r = try chatSendCmd(.apiSendMessage(type: type, id: id, msg: msg))
+    if case let .newChatItem(aChatItem) = r { return aChatItem.chatItem }
+    throw r
+}
+
+func apiAddContact() throws -> String {
+    let r = try chatSendCmd(.addContact)
+    if case let .invitation(connReqInvitation) = r { return connReqInvitation }
+    throw r
+}
+
+func apiConnect(connReq: String) throws {
+    let r = try chatSendCmd(.connect(connReq: connReq))
+    switch r {
+    case .sentConfirmation: return
+    case .sentInvitation: return
+    default: throw r
+    }
+}
+
+func apiDeleteChat(type: ChatType, id: Int64) throws {
+    let r = try chatSendCmd(.apiDeleteChat(type: type, id: id))
+    if case .contactDeleted = r { return }
+    throw r
+}
+
+func apiUpdateProfile(profile: Profile) throws -> Profile? {
+    let r = try chatSendCmd(.updateProfile(profile: profile))
+    switch r {
+    case .userProfileNoChange: return nil
+    case let .userProfileUpdated(_, toProfile): return toProfile
+    default: throw r
+    }
+}
+
+func apiCreateUserAddress() throws -> String {
+    let r = try chatSendCmd(.createMyAddress)
+    if case let .userContactLinkCreated(connReq) = r { return connReq }
+    throw r
+}
+
+func apiDeleteUserAddress() throws {
+    let r = try chatSendCmd(.deleteMyAddress)
+    if case .userContactLinkDeleted = r { return }
+    throw r
+}
+
+func apiGetUserAddress() throws -> String? {
+    let r = try chatSendCmd(.showMyAddress)
+    switch r {
+    case let .userContactLink(connReq):
+        return connReq
+    case .chatCmdError(chatError: .errorStore(storeError: .userContactLinkNotFound)):
+        return nil
+    default: throw r
+    }
+}
+
+func apiAcceptContactRequest(contactReqId: Int64) throws -> Contact {
+    let r = try chatSendCmd(.apiAcceptContact(contactReqId: contactReqId))
+    if case let .acceptingContactRequest(contact) = r { return contact }
+    throw r
+}
+
+func apiRejectContactRequest(contactReqId: Int64) throws {
+    let r = try chatSendCmd(.apiRejectContact(contactReqId: contactReqId))
+    if case .contactRequestRejected = r { return }
+    throw r
+}
+
+func acceptContactRequest(_ contactRequest: UserContactRequest) {
+    do {
+        let contact = try apiAcceptContactRequest(contactReqId: contactRequest.apiId)
+        let chat = Chat(chatInfo: ChatInfo.direct(contact: contact), chatItems: [])
+        ChatModel.shared.replaceChat(contactRequest.id, chat)
+    } catch let error {
+        logger.error("acceptContactRequest error: \(error.localizedDescription)")
+    }
+}
+
+func rejectContactRequest(_ contactRequest: UserContactRequest) {
+    do {
+        try apiRejectContactRequest(contactReqId: contactRequest.apiId)
+        ChatModel.shared.removeChat(contactRequest.id)
+    } catch let error {
+        logger.error("rejectContactRequest: \(error.localizedDescription)")
+    }
+}
+
+func initializeChat() {
+    do {
+        ChatModel.shared.currentUser = try apiGetActiveUser()
+    } catch {
+        fatalError("Failed to initialize chat controller or database: \(error)")
+    }
+}
+
+class ChatReceiver {
+    private var receiveLoop: DispatchWorkItem?
+    private var receiveMessages = true
+    private var _lastMsgTime = Date.now
+
+    static let shared = ChatReceiver()
+
+    var lastMsgTime: Date { get { _lastMsgTime } }
+
+    func start() {
+        logger.debug("ChatReceiver.start")
+        receiveMessages = true
+        _lastMsgTime = .now
+        if receiveLoop != nil { return }
+        let loop = DispatchWorkItem(qos: .default, flags: []) {
+            while self.receiveMessages {
+                do {
+                    processReceivedMsg(try chatRecvMsg())
+                    self._lastMsgTime = .now
+                } catch {
+                    logger.error("ChatReceiver.start chatRecvMsg error: \(error.localizedDescription)")
+                }
+            }
+        }
+        receiveLoop = loop
+        DispatchQueue.global().async(execute: loop)
+    }
+
+    func stop() {
+        logger.debug("ChatReceiver.stop")
+        receiveMessages = false
+        receiveLoop?.cancel()
+        receiveLoop = nil
+    }
+}
+
+func processReceivedMsg(_ res: ChatResponse) {
+    let chatModel = ChatModel.shared
+    DispatchQueue.main.async {
+        chatModel.terminalItems.append(.resp(.now, res))
+        logger.debug("processReceivedMsg: \(res.responseType)")
+        switch res {
+        case let .contactConnected(contact):
+            chatModel.updateContact(contact)
+            chatModel.updateNetworkStatus(contact, .connected)
+            NtfManager.shared.notifyContactConnected(contact)
+        case let .receivedContactRequest(contactRequest):
+            chatModel.addChat(Chat(
+                chatInfo: ChatInfo.contactRequest(contactRequest: contactRequest),
+                chatItems: []
+            ))
+            NtfManager.shared.notifyContactRequest(contactRequest)
+        case let .contactUpdated(toContact):
+            let cInfo = ChatInfo.direct(contact: toContact)
+            if chatModel.hasChat(toContact.id) {
+                chatModel.updateChatInfo(cInfo)
+            }
+        case let .contactSubscribed(contact):
+            chatModel.updateContact(contact)
+            chatModel.updateNetworkStatus(contact, .connected)
+        case let .contactDisconnected(contact):
+            chatModel.updateContact(contact)
+            chatModel.updateNetworkStatus(contact, .disconnected)
+        case let .contactSubError(contact, chatError):
+            chatModel.updateContact(contact)
+            var err: String
+            switch chatError {
+            case .errorAgent(agentError: .BROKER(brokerErr: .NETWORK)): err = "network"
+            case .errorAgent(agentError: .SMP(smpErr: .AUTH)): err = "contact deleted"
+            default: err = String(describing: chatError)
+            }
+            chatModel.updateNetworkStatus(contact, .error(err))
+        case let .newChatItem(aChatItem):
+            let cInfo = aChatItem.chatInfo
+            let cItem = aChatItem.chatItem
+            chatModel.addChatItem(cInfo, cItem)
+            NtfManager.shared.notifyMessageReceived(cInfo, cItem)
+        default:
+            logger.debug("unsupported event: \(res.responseType)")
+        }
+    }
+}
+
+private struct UserResponse: Decodable {
+    var user: User?
+    var error: String?
+}
+
+private func chatResponse(_ cjson: UnsafePointer<CChar>) -> ChatResponse {
+    let s = String.init(cString: cjson)
+    let d = s.data(using: .utf8)!
+// TODO is there a way to do it without copying the data? e.g:
+//    let p = UnsafeMutableRawPointer.init(mutating: UnsafeRawPointer(cjson))
+//    let d = Data.init(bytesNoCopy: p, count: strlen(cjson), deallocator: .free)
+
+// TODO some mechanism to update model without passing it - maybe Publisher / Subscriber?
+
+    do {
+        let r = try jsonDecoder.decode(APIResponse.self, from: d)
+        return r.resp
+    } catch {
+        logger.error("chatResponse jsonDecoder.decode error: \(error.localizedDescription)")
+    }
+        
+    var type: String?
+    var json: String?
+    if let j = try? JSONSerialization.jsonObject(with: d) as? NSDictionary {
+        if let j1 = j["resp"] as? NSDictionary, j1.count == 1 {
+            type = j1.allKeys[0] as? String
+        }
+        json = prettyJSON(j)
+    }
+    return ChatResponse.response(type: type ?? "invalid", json: json ?? s)
+}
+
+func prettyJSON(_ obj: NSDictionary) -> String? {
+    if let d = try? JSONSerialization.data(withJSONObject: obj, options: .prettyPrinted) {
+        return String(decoding: d, as: UTF8.self)
+    }
+    return nil
+}
+
+private func getChatCtrl() -> chat_ctrl {
+    if let controller = chatController { return controller }
+    let dataDir = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!.path + "/mobile_v1"
+    var cstr = dataDir.cString(using: .utf8)!
+    chatController = chat_init(&cstr)
+    return chatController!
+}
+
+private func decodeCJSON<T: Decodable>(_ cjson: UnsafePointer<CChar>) -> T? {
+    let s = String.init(cString: cjson)
+    let d = s.data(using: .utf8)!
+//    let p = UnsafeMutableRawPointer.init(mutating: UnsafeRawPointer(cjson))
+//    let d = Data.init(bytesNoCopy: p, count: strlen(cjson), deallocator: .free)
+    return try? jsonDecoder.decode(T.self, from: d)
+}
+
+private func getJSONObject(_ cjson: UnsafePointer<CChar>) -> NSDictionary? {
+    let s = String.init(cString: cjson)
+    let d = s.data(using: .utf8)!
+    return try? JSONSerialization.jsonObject(with: d) as? NSDictionary
+}
+
+private func encodeCJSON<T: Encodable>(_ value: T) -> [CChar] {
+    let data = try! jsonEncoder.encode(value)
+    let str = String(decoding: data, as: UTF8.self)
+    return str.cString(using: .utf8)!
+}
+
+enum ChatError: Decodable {
+    case error(errorType: ChatErrorType)
+    case errorAgent(agentError: AgentErrorType)
+    case errorStore(storeError: StoreError)
+}
+
+enum ChatErrorType: Decodable {
+    case noActiveUser
+    case activeUserExists
+    case chatNotStarted
+    case invalidConnReq
+    case invalidChatMessage(message: String)
+    case contactGroups(contact: Contact, groupNames: [GroupName])
+    case groupUserRole
+    case groupContactRole(contactName: ContactName)
+    case groupDuplicateMember(contactName: ContactName)
+    case groupDuplicateMemberId
+    case groupNotJoined(groupInfo: GroupInfo)
+    case groupMemberNotActive
+    case groupMemberUserRemoved
+    case groupMemberNotFound(contactName: ContactName)
+    case groupMemberIntroNotFound(contactName: ContactName)
+    case groupCantResendInvitation(groupInfo: GroupInfo, contactName: ContactName)
+    case groupInternal(message: String)
+    case fileNotFound(message: String)
+    case fileAlreadyReceiving(message: String)
+    case fileAlreadyExists(filePath: String)
+    case fileRead(filePath: String, message: String)
+    case fileWrite(filePath: String, message: String)
+    case fileSend(fileId: Int64, agentError: String)
+    case fileRcvChunk(message: String)
+    case fileInternal(message: String)
+    case agentVersion
+    case commandError(message: String)
+}
+
+enum StoreError: Decodable {
+    case duplicateName
+    case contactNotFound(contactId: Int64)
+    case contactNotFoundByName(contactName: ContactName)
+    case contactNotReady(contactName: ContactName)
+    case duplicateContactLink
+    case userContactLinkNotFound
+    case contactRequestNotFound(contactRequestId: Int64)
+    case contactRequestNotFoundByName(contactName: ContactName)
+    case groupNotFound(groupId: Int64)
+    case groupNotFoundByName(groupName: GroupName)
+    case groupWithoutUser
+    case duplicateGroupMember
+    case groupAlreadyJoined
+    case groupInvitationNotFound
+    case sndFileNotFound(fileId: Int64)
+    case sndFileInvalid(fileId: Int64)
+    case rcvFileNotFound(fileId: Int64)
+    case fileNotFound(fileId: Int64)
+    case rcvFileInvalid(fileId: Int64)
+    case connectionNotFound(agentConnId: String)
+    case introNotFound
+    case uniqueID
+    case internalError(message: String)
+    case noMsgDelivery(connId: Int64, agentMsgId: String)
+    case badChatItem(itemId: Int64)
+    case chatItemNotFound(itemId: Int64)
+}
+
+enum AgentErrorType: Decodable {
+    case CMD(cmdErr: CommandErrorType)
+    case CONN(connErr: ConnectionErrorType)
+    case SMP(smpErr: SMPErrorType)
+    case BROKER(brokerErr: BrokerErrorType)
+    case AGENT(agentErr: SMPAgentError)
+    case INTERNAL(internalErr: String)
+}
+
+enum CommandErrorType: Decodable {
+    case PROHIBITED
+    case SYNTAX
+    case NO_CONN
+    case SIZE
+    case LARGE
+}
+
+enum ConnectionErrorType: Decodable {
+    case NOT_FOUND
+    case DUPLICATE
+    case SIMPLEX
+    case NOT_ACCEPTED
+    case NOT_AVAILABLE
+}
+
+enum BrokerErrorType: Decodable {
+    case RESPONSE(smpErr: SMPErrorType)
+    case UNEXPECTED
+    case NETWORK
+    case TRANSPORT(transportErr: SMPTransportError)
+    case TIMEOUT
+}
+
+enum SMPErrorType: Decodable {
+    case BLOCK
+    case SESSION
+    case CMD(cmdErr: SMPCommandError)
+    case AUTH
+    case QUOTA
+    case NO_MSG
+    case LARGE_MSG
+    case INTERNAL
+}
+
+enum SMPCommandError: Decodable {
+    case UNKNOWN
+    case SYNTAX
+    case NO_AUTH
+    case HAS_AUTH
+    case NO_QUEUE
+}
+
+enum SMPTransportError: Decodable {
+    case TEBadBlock
+    case TELargeMsg
+    case TEBadSession
+    case TEHandshake(handshakeErr: SMPHandshakeError)
+}
+
+enum SMPHandshakeError: Decodable {
+    case PARSE
+    case VERSION
+    case IDENTITY
+}
+
+enum SMPAgentError: Decodable {
+    case A_MESSAGE
+    case A_PROHIBITED
+    case A_VERSION
+    case A_ENCRYPTION
+}
@@ -0,0 +1,32 @@
+import Foundation
+
+var greeting = "Hello, playground"
+
+let jsonEncoder = JSONEncoder()
+
+//jsonDecoder.decode(Test.self, from: "{\"name\":\"hello\",\"id\":1}".data(using: .utf8)!)
+
+
+var a = [1, 2, 3]
+
+a.removeAll(where: { $0 == 1} )
+
+print(a)
+
+let input = "This is a test with the привет 🙂 URL https://www.hackingwithswift.com to be detected."
+let detector = try! NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue)
+let matches = detector.matches(in: input, options: [], range: NSRange(location: 0, length: input.count))
+
+print(matches)
+
+for match in matches {
+    guard let range = Range(match.range, in: input) else { continue }
+    let url = input[range]
+    print(url)
+}
+
+let r = try! NSRegularExpression(pattern: "^\\+?[0-9\\.\\(\\)\\-]{7,20}$")
+
+print(r.firstMatch(in: "+44(0)7448-736-790", options: [], range: NSRange(location: 0, length: "+44(0)7448-736-790".count)) == nil)
+
+let action: NtfAction? = NtfAction(rawValue: "NTF_ACT_ACCEPT")
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<playground version='5.0' target-platform='ios' buildActiveScheme='true' importAppTypes='true'>
+    <timeline fileName='timeline.xctimeline'/>
+</playground>
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Timeline
+   version = "3.0">
+   <TimelineItems>
+      <LoggerValueHistoryTimelineItem
+         documentLocation = "file:///Users/evgeny/opensource/simplex-chat/simplex-chat/apps/ios/Shared/MyPlayground.playground#CharacterRangeLen=88&amp;CharacterRangeLoc=91&amp;EndingColumnNumber=0&amp;EndingLineNumber=7&amp;StartingColumnNumber=3&amp;StartingLineNumber=6&amp;Timestamp=666087303.155273"
+         selectedRepresentationIndex = "0"
+         shouldTrackSuperviewWidth = "NO">
+      </LoggerValueHistoryTimelineItem>
+   </TimelineItems>
+</Timeline>
@@ -0,0 +1,11 @@
+//
+//  Use this file to import your target's public headers that you would like to expose to Swift.
+//
+
+extern void hs_init(int argc, char **argv[]);
+
+typedef void* chat_ctrl;
+
+extern chat_ctrl chat_init(char *path);
+extern char *chat_send_cmd(chat_ctrl ctl, char *cmd);
+extern char *chat_recv_msg(chat_ctrl ctl);
@@ -0,0 +1,11 @@
+//
+//  Use this file to import your target's public headers that you would like to expose to Swift.
+//
+
+extern void hs_init(int argc, char **argv[]);
+
+typedef void* chat_ctrl;
+
+extern chat_ctrl chat_init(char *path);
+extern char *chat_send_cmd(chat_ctrl ctl, char *cmd);
+extern char *chat_recv_msg(chat_ctrl ctl);
@@ -0,0 +1,43 @@
+//
+//  SimpleXApp.swift
+//  Shared
+//
+//  Created by Evgeny Poberezkin on 17/01/2022.
+//
+
+import SwiftUI
+import OSLog
+
+let logger = Logger()
+
+@main
+struct SimpleXApp: App {
+    @StateObject private var chatModel = ChatModel.shared
+    @Environment(\.scenePhase) var scenePhase
+
+    init() {
+        hs_init(0, nil)
+        BGManager.shared.register()
+        NtfManager.shared.registerCategories()
+    }
+
+    var body: some Scene {
+        return WindowGroup {
+            ContentView()
+                .environmentObject(chatModel)
+                .onOpenURL { url in
+                    logger.debug("ContentView.onOpenURL: \(url)")
+                    chatModel.appOpenUrl = url
+                    chatModel.connectViaUrl = true
+                }
+                .onAppear() {
+                    initializeChat()
+                }
+                .onChange(of: scenePhase) { phase in
+                    if phase == .background {
+                        BGManager.shared.schedule()
+                    }
+                }
+        }
+    }
+}
@@ -0,0 +1,97 @@
+//
+//  ChatInfoView.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 05/02/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import SwiftUI
+
+struct ChatInfoView: View {
+    @EnvironmentObject var chatModel: ChatModel
+    @ObservedObject var chat: Chat
+    @Binding var showChatInfo: Bool
+    @State private var showDeleteContactAlert = false
+    @State private var alertContact: Contact?
+    @State private var showNetworkStatusInfo = false
+
+    var body: some View {
+        VStack{
+            ChatInfoImage(chat: chat)
+                .frame(width: 192, height: 192)
+                .padding(.top, 48)
+                .padding()
+            Text(chat.chatInfo.localDisplayName).font(.largeTitle)
+                .padding(.bottom, 2)
+            Text(chat.chatInfo.fullName).font(.title)
+                .padding(.bottom)
+
+            if case let .direct(contact) = chat.chatInfo {
+                VStack {
+                    HStack {
+                        Button {
+                            showNetworkStatusInfo.toggle()
+                        } label: {
+                            serverImage()
+                            Text(chat.serverInfo.networkStatus.statusString)
+                                .foregroundColor(.primary)
+                        }
+                    }
+                    if showNetworkStatusInfo {
+                        Text(chat.serverInfo.networkStatus.statusExplanation)
+                            .font(.subheadline)
+                            .multilineTextAlignment(.center)
+                            .padding(.horizontal, 64)
+                            .padding(.vertical, 8)
+                    }
+
+                    Spacer()
+                    Button(role: .destructive) {
+                        alertContact = contact
+                        showDeleteContactAlert = true
+                    } label: {
+                        Label("Delete contact", systemImage: "trash")
+                    }
+                    .padding()
+                    .alert(isPresented: $showDeleteContactAlert) {
+                        deleteContactAlert(alertContact!)
+                    }
+                }
+            }
+        }
+        .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .top)
+    }
+
+    func serverImage() -> some View {
+        let status = chat.serverInfo.networkStatus
+        return Image(systemName: status.imageName)
+            .foregroundColor(status == .connected ? .green : .secondary)
+    }
+
+    private func deleteContactAlert(_ contact: Contact) -> Alert {
+        Alert(
+            title: Text("Delete contact?"),
+            message: Text("Contact and all messages will be deleted"),
+            primaryButton: .destructive(Text("Delete")) {
+                do {
+                    try apiDeleteChat(type: .direct, id: contact.apiId)
+                    chatModel.removeChat(contact.id)
+                    showChatInfo = false
+                } catch let error {
+                    logger.error("ChatInfoView.deleteContactAlert apiDeleteChat error: \(error.localizedDescription)")
+                }
+                alertContact = nil
+            }, secondaryButton: .cancel() {
+                alertContact = nil
+            }
+        )
+    }
+}
+
+struct ChatInfoView_Previews: PreviewProvider {
+    static var previews: some View {
+        @State var showChatInfo = true
+        return ChatInfoView(chat: Chat(chatInfo: ChatInfo.sampleData.direct, chatItems: []), showChatInfo: $showChatInfo)
+    }
+}
@@ -0,0 +1,43 @@
+//
+//  EmojiItemView.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 04/02/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import SwiftUI
+
+struct EmojiItemView: View {
+    var chatItem: ChatItem
+
+    var body: some View {
+        let sent = chatItem.chatDir.sent
+
+        VStack {
+            Text(chatItem.content.text.trimmingCharacters(in: .whitespaces))
+                .font(emojiFont)
+                .padding(.top, 8)
+                .padding(.horizontal, 6)
+                .frame(maxWidth: .infinity, alignment: sent ? .trailing : .leading)
+            Text(getDateFormatter().string(from: chatItem.meta.itemTs))
+                .font(.caption)
+                .foregroundColor(.secondary)
+                .padding(.bottom, 8)
+                .padding(.horizontal, 12)
+                .frame(maxWidth: .infinity, alignment: sent ? .trailing : .leading)
+        }
+        .padding(.horizontal)
+        .frame(maxWidth: .infinity, alignment: sent ? .trailing : .leading)
+    }
+}
+
+struct EmojiItemView_Previews: PreviewProvider {
+    static var previews: some View {
+        Group{
+            EmojiItemView(chatItem: ChatItem.getSample(1, .directSnd, .now, "🙂"))
+            EmojiItemView(chatItem: ChatItem.getSample(2, .directRcv, .now, "👍"))
+        }
+        .previewLayout(.fixed(width: 360, height: 70))
+    }
+}
@@ -0,0 +1,144 @@
+//
+//  TextItemView.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 04/02/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import SwiftUI
+
+private let emailRegex = try! NSRegularExpression(pattern: "^[a-z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?(?:\\.[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?)*$", options: .caseInsensitive)
+
+private let phoneRegex = try! NSRegularExpression(pattern: "^\\+?[0-9\\.\\(\\)\\-]{7,20}$")
+
+private let sentColorLigth = Color(.sRGB, red: 0.27, green: 0.72, blue: 1, opacity: 0.12)
+private let sentColorDark = Color(.sRGB, red: 0.27, green: 0.72, blue: 1, opacity: 0.17)
+private let linkColor = UIColor(red: 0, green: 0.533, blue: 1, alpha: 1)
+
+struct TextItemView: View {
+    @Environment(\.colorScheme) var colorScheme
+    var chatItem: ChatItem
+    var width: CGFloat
+    private let codeFont = Font.custom("Courier", size: UIFont.preferredFont(forTextStyle: .body).pointSize)
+
+    var body: some View {
+        let sent = chatItem.chatDir.sent
+//        let minWidth = min(200, width)
+        let maxWidth = width * 0.78
+        let meta = getDateFormatter().string(from: chatItem.meta.itemTs)
+
+        return ZStack(alignment: .bottomTrailing) {
+            (messageText(chatItem) + reserveSpaceForMeta(meta))
+                .padding(.top, 6)
+                .padding(.bottom, 7)
+                .padding(.horizontal, 12)
+                .frame(minWidth: 0, alignment: .leading)
+//                .foregroundColor(sent ? .white : .primary)
+                .textSelection(.enabled)
+
+            Text(meta)
+                .font(.caption)
+                .foregroundColor(.secondary)
+//                .foregroundColor(sent ? Color(uiColor: .secondarySystemBackground) : .secondary)
+                .padding(.bottom, 4)
+                .padding(.horizontal, 12)
+        }
+//        .background(sent ? .blue : Color(uiColor: .tertiarySystemGroupedBackground))
+        .background(
+            sent
+            ? (colorScheme == .light ? sentColorLigth : sentColorDark)
+            : Color(uiColor: .tertiarySystemGroupedBackground)
+        )
+        .cornerRadius(18)
+        .padding(.horizontal)
+        .frame(
+            maxWidth: maxWidth,
+            maxHeight: .infinity,
+            alignment: sent ? .trailing : .leading
+        )
+    }
+
+    private func messageText(_ chatItem: ChatItem) -> Text {
+        let s = chatItem.content.text
+        var res: Text
+        if s == "" {
+            res = Text("")
+        } else {
+            let parts = s.split(separator: " ")
+            res = wordToText(parts[0])
+            var i = 1
+            while i < parts.count {
+                res = res + Text(" ") + wordToText(parts[i])
+                i = i + 1
+            }
+        }
+        if case let .groupRcv(groupMember) = chatItem.chatDir {
+            let member = Text(groupMember.memberProfile.displayName).font(.headline)
+            return member + Text(": ") + res
+        } else {
+            return res
+        }
+    }
+
+    private func reserveSpaceForMeta(_ meta: String) -> Text {
+        Text(AttributedString("   \(meta)", attributes: AttributeContainer([
+            .font: UIFont.preferredFont(forTextStyle: .caption1) as Any,
+            .foregroundColor: UIColor.clear as Any,
+        ])))
+    }
+
+    private func wordToText(_ s: String.SubSequence) -> Text {
+        let str = String(s)
+        switch true {
+        case s.starts(with: "http://") || s.starts(with: "https://"):
+            return linkText(str, prefix: "")
+        case match(str, emailRegex):
+            return linkText(str, prefix: "mailto:")
+        case match(str, phoneRegex):
+            return linkText(str, prefix: "tel:")
+        default:
+            if (s.count > 1) {
+                switch true {
+                case s.first == "*" && s.last == "*": return mdText(s).bold()
+                case s.first == "_" && s.last == "_": return mdText(s).italic()
+                case s.first == "+" && s.last == "+": return mdText(s).underline()
+                case s.first == "~" && s.last == "~": return mdText(s).strikethrough()
+                default: return Text(s)
+                }
+            } else {
+                return Text(s)
+            }
+        }
+    }
+
+    private func match(_ s: String, _ regex: NSRegularExpression) -> Bool {
+        regex.firstMatch(in: s, options: [], range: NSRange(location: 0, length: s.count)) != nil
+    }
+
+    private func linkText(_ s: String, prefix: String) -> Text {
+        Text(AttributedString(s, attributes: AttributeContainer([
+            .link: NSURL(string: prefix + s) as Any,
+            .foregroundColor: linkColor as Any
+        ]))).underline()
+    }
+
+    private func mdText(_ s: String.SubSequence) -> Text {
+        Text(s[s.index(s.startIndex, offsetBy: 1)..<s.index(s.endIndex, offsetBy: -1)])
+    }
+}
+
+struct TextItemView_Previews: PreviewProvider {
+    static var previews: some View {
+        Group{
+            TextItemView(chatItem: ChatItem.getSample(1, .directSnd, .now, "hello"), width: 360)
+            TextItemView(chatItem: ChatItem.getSample(1, .groupRcv(groupMember: GroupMember.sampleData), .now, "hello"), width: 360)
+            TextItemView(chatItem: ChatItem.getSample(2, .directSnd, .now, "https://simplex.chat"), width: 360)
+            TextItemView(chatItem: ChatItem.getSample(2, .directRcv, .now, "hello there too!!! this covers -"), width: 360)
+            TextItemView(chatItem: ChatItem.getSample(2, .directRcv, .now, "hello there too!!! this text has the time on the same line "), width: 360)
+            TextItemView(chatItem: ChatItem.getSample(2, .directRcv, .now, "https://simplex.chat"), width: 360)
+            TextItemView(chatItem: ChatItem.getSample(2, .directRcv, .now, "chaT@simplex.chat"), width: 360)
+        }
+        .previewLayout(.fixed(width: 360, height: 70))
+    }
+}
@@ -0,0 +1,45 @@
+//
+//  ChatItemView.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 30/01/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import SwiftUI
+
+private var dateFormatter: DateFormatter?
+
+struct ChatItemView: View {
+    var chatItem: ChatItem
+    var width: CGFloat
+
+    var body: some View {
+        if (isShortEmoji(chatItem.content.text)) {
+            EmojiItemView(chatItem: chatItem)
+        } else {
+            TextItemView(chatItem: chatItem, width: width)
+        }
+    }
+}
+
+func getDateFormatter() -> DateFormatter {
+    if let df = dateFormatter { return df }
+    let df = DateFormatter()
+    df.dateFormat = "HH:mm"
+    dateFormatter = df
+    return df
+}
+
+struct ChatItemView_Previews: PreviewProvider {
+    static var previews: some View {
+        Group{
+            ChatItemView(chatItem: ChatItem.getSample(1, .directSnd, .now, "hello"), width: 360)
+            ChatItemView(chatItem: ChatItem.getSample(2, .directRcv, .now, "hello there too"), width: 360)
+            ChatItemView(chatItem: ChatItem.getSample(1, .directSnd, .now, "🙂"), width: 360)
+            ChatItemView(chatItem: ChatItem.getSample(2, .directRcv, .now, "🙂🙂🙂🙂🙂"), width: 360)
+            ChatItemView(chatItem: ChatItem.getSample(2, .directRcv, .now, "🙂🙂🙂🙂🙂🙂"), width: 360)
+        }
+        .previewLayout(.fixed(width: 360, height: 70))
+    }
+}
@@ -0,0 +1,136 @@
+//
+//  ChatView.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 27/01/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import SwiftUI
+
+private let chatImageColorLight = Color(red: 0.9, green: 0.9, blue: 0.9)
+private let chatImageColorDark = Color(red: 0.2, green: 0.2, blue: 0.2                                                     )
+
+struct ChatView: View {
+    @EnvironmentObject var chatModel: ChatModel
+    @Environment(\.colorScheme) var colorScheme
+    @ObservedObject var chat: Chat
+    @State private var inProgress: Bool = false
+    @FocusState private var keyboardVisible: Bool
+    @State private var showChatInfo = false
+
+    var body: some View {
+        let cInfo = chat.chatInfo
+
+        return VStack {
+            GeometryReader { g in
+                ScrollViewReader { proxy in
+                    ScrollView {
+                        VStack(spacing: 5)  {
+                            ForEach(chatModel.chatItems, id: \.id) {
+                                ChatItemView(chatItem: $0, width: g.size.width)
+                                    .frame(minWidth: 0, maxWidth: .infinity, alignment: $0.chatDir.sent ? .trailing : .leading)
+                            }
+                            .onAppear { scrollToBottom(proxy) }
+                            .onChange(of: chatModel.chatItems.count) { _ in scrollToBottom(proxy) }
+                            .onChange(of: keyboardVisible) { _ in
+                                if keyboardVisible {
+                                    DispatchQueue.main.asyncAfter(deadline: .now() + 0.25) {
+                                        scrollToBottom(proxy, animation: .easeInOut(duration: 1))
+                                    }
+                                }
+                            }
+                        }
+                    }
+                    .coordinateSpace(name: "scrollView")
+                    .onTapGesture {
+                        UIApplication.shared.sendAction(#selector(UIResponder.resignFirstResponder), to: nil, from: nil, for: nil)
+                    }
+                }
+            }
+
+            Spacer(minLength: 0)
+
+            SendMessageView(
+                sendMessage: sendMessage,
+                inProgress: inProgress,
+                keyboardVisible: $keyboardVisible
+            )
+        }
+        .navigationTitle(cInfo.chatViewName)
+        .navigationBarTitleDisplayMode(.inline)
+        .toolbar {
+            ToolbarItem(placement: .navigationBarLeading) {
+                Button { chatModel.chatId = nil } label: {
+                    HStack(spacing: 4) {
+                        Image(systemName: "chevron.backward")
+                        Text("Chats")
+                    }
+                }
+            }
+            ToolbarItem(placement: .principal) {
+                Button {
+                    showChatInfo = true
+                } label: {
+                    HStack {
+                        ChatInfoImage(
+                            chat: chat,
+                            color: colorScheme == .dark
+                                    ? chatImageColorDark
+                                    : chatImageColorLight
+                        )
+                        .frame(width: 32, height: 32)
+                        .padding(.trailing, 4)
+                        VStack {
+                            Text(cInfo.displayName).font(.headline)
+                            if cInfo.fullName != "" && cInfo.displayName != cInfo.fullName {
+                                Text(cInfo.fullName).font(.subheadline)
+                            }
+                        }
+                    }
+                    .foregroundColor(.primary)
+                }
+                .sheet(isPresented: $showChatInfo) {
+                    ChatInfoView(chat: chat, showChatInfo: $showChatInfo)
+                }
+            }
+        }
+        .navigationBarBackButtonHidden(true)
+    }
+
+    func scrollToBottom(_ proxy: ScrollViewProxy, animation: Animation = .default) {
+        if let id = chatModel.chatItems.last?.id {
+            withAnimation(animation) {
+                proxy.scrollTo(id, anchor: .bottom)
+            }
+        }
+    }
+
+    func sendMessage(_ msg: String) {
+        do {
+            let chatItem = try apiSendMessage(type: chat.chatInfo.chatType, id: chat.chatInfo.apiId, msg: .text(msg))
+            chatModel.addChatItem(chat.chatInfo, chatItem)
+        } catch {
+            logger.error("ChatView.sendMessage apiSendMessage error: \(error.localizedDescription)")
+        }
+    }
+}
+
+struct ChatView_Previews: PreviewProvider {
+    static var previews: some View {
+        let chatModel = ChatModel()
+        chatModel.chatId = "@1"
+        chatModel.chatItems = [
+            ChatItem.getSample(1, .directSnd, .now, "hello"),
+            ChatItem.getSample(2, .directRcv, .now, "hi"),
+            ChatItem.getSample(3, .directRcv, .now, "hi there"),
+            ChatItem.getSample(4, .directRcv, .now, "hello again"),
+            ChatItem.getSample(5, .directSnd, .now, "hi there!!!"),
+            ChatItem.getSample(6, .directSnd, .now, "how are you?"),
+            ChatItem.getSample(7, .directSnd, .now, "👍👍👍👍"),
+            ChatItem.getSample(8, .directSnd, .now, "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.")
+        ]
+        return ChatView(chat: Chat(chatInfo: ChatInfo.sampleData.direct, chatItems: []))
+            .environmentObject(chatModel)
+    }
+}
@@ -0,0 +1,30 @@
+//
+//  Emoji.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 04/02/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import Foundation
+import SwiftUI
+
+private func isSimpleEmoji(_ c: Character) -> Bool {
+    guard let firstScalar = c.unicodeScalars.first else { return false }
+    return firstScalar.properties.isEmoji && firstScalar.value > 0x238C
+}
+
+private func isCombinedIntoEmoji(_ c: Character) -> Bool {
+    c.unicodeScalars.count > 1 && c.unicodeScalars.first?.properties.isEmoji ?? false
+}
+
+func isEmoji(_ c: Character) -> Bool {
+    isSimpleEmoji(c) || isCombinedIntoEmoji(c)
+}
+
+func isShortEmoji(_ str: String) -> Bool {
+    let s = str.trimmingCharacters(in: .whitespaces)
+    return s.count > 0 && s.count <= 4 && s.allSatisfy(isEmoji)
+}
+
+let emojiFont = Font.custom("Emoji", size: 48, relativeTo: .largeTitle)
@@ -0,0 +1,95 @@
+//
+//  SendMessageView.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 29/01/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import SwiftUI
+
+struct SendMessageView: View {
+    var sendMessage: (String) -> Void
+    var inProgress: Bool = false
+    @State private var message: String = "" //Lorem ipsum dolor sit amet, consectetur" // adipiscing elit, sed do eiusmod tempor incididunt ut labor7 et dolore magna aliqua. Ut enim ad minim veniam, quis"// nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat."// Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."
+    @Namespace var namespace
+    @FocusState.Binding var keyboardVisible: Bool
+    @State private var teHeight: CGFloat = 42
+    @State private var teFont: Font = .body
+    var maxHeight: CGFloat = 360
+    var minHeight: CGFloat = 37
+
+    var body: some View {
+        ZStack {
+            HStack(alignment: .bottom) {
+                ZStack(alignment: .leading) {
+                    Text(message)
+                        .font(teFont)
+                        .foregroundColor(.clear)
+                        .padding(.horizontal, 10)
+                        .padding(.vertical, 8)
+                        .matchedGeometryEffect(id: "te", in: namespace)
+                        .background(GeometryReader(content: updateHeight))
+                    TextEditor(text: $message)
+                        .onSubmit(submit)
+                        .focused($keyboardVisible)
+                        .font(teFont)
+                        .textInputAutocapitalization(.sentences)
+                        .padding(.horizontal, 5)
+                        .allowsTightening(false)
+                        .frame(height: teHeight)
+                }
+
+                if (inProgress) {
+                    ProgressView()
+                        .scaleEffect(1.4)
+                        .frame(width: 31, height: 31, alignment: .center)
+                        .padding([.bottom, .trailing], 3)
+                } else {
+                    Button(action: submit) {
+                        Image(systemName: "arrow.up.circle.fill")
+                            .resizable()
+                            .foregroundColor(.accentColor)
+                    }
+                    .disabled(message.isEmpty)
+                    .frame(width: 29, height: 29)
+                    .padding([.bottom, .trailing], 4)
+                }
+            }
+
+            RoundedRectangle(cornerSize: CGSize(width: 20, height: 20))
+                .strokeBorder(.secondary, lineWidth: 0.3, antialiased: true)
+                .frame(height: teHeight)
+        }
+        .padding(.horizontal, 12)
+        .padding(.vertical, 8)
+    }
+
+    func submit() {
+        sendMessage(message)
+        message = ""
+    }
+
+    func updateHeight(_ g: GeometryProxy) -> Color {
+        DispatchQueue.main.async {
+            teHeight = min(max(g.frame(in: .local).size.height, minHeight), maxHeight)
+            teFont = isShortEmoji(message) ? emojiFont : .body
+        }
+        return Color.clear
+    }
+}
+
+struct SendMessageView_Previews: PreviewProvider {
+    static var previews: some View {
+        @FocusState var keyboardVisible: Bool
+
+        return VStack {
+            Text("")
+            Spacer(minLength: 0)
+            SendMessageView(
+                sendMessage: { print ($0) },
+                keyboardVisible: $keyboardVisible
+            )
+        }
+    }
+}
@@ -0,0 +1,66 @@
+//
+//  ChatHelp.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 10/02/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import SwiftUI
+
+struct ChatHelp: View {
+    @EnvironmentObject var chatModel: ChatModel
+    @Binding var showSettings: Bool
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 10) {
+            Text("Thank you for installing SimpleX Chat!")
+
+            HStack(spacing: 4) {
+                Text("You can")
+                Button("connect to SimpleX team.") {
+                    showSettings = false
+                    DispatchQueue.main.async {
+                        UIApplication.shared.open(simplexTeamURL)
+                    }
+                }
+            }
+
+            VStack(alignment: .leading, spacing: 10) {
+                Text("To start a new chat")
+                    .font(.title2)
+                    .fontWeight(.bold)
+
+                HStack(spacing: 8) {
+                    Text("Tap button ")
+                    NewChatButton()
+                    Text("above, then:")
+                }
+
+                Text("**Add new contact**: to create your one-time QR Code for your contact.")
+                Text("**Scan QR code**: to connect to your contact who shows QR code to you.")
+            }
+            .padding(.top, 24)
+
+            VStack(alignment: .leading, spacing: 10) {
+                Text("To connect via link")
+                    .font(.title2)
+                    .fontWeight(.bold)
+
+                Text("If you received SimpleX Chat invitation link you can open it in your browser:")
+
+                Text("💻 desktop: scan displayed QR code from the app, via **Scan QR code**.")
+                Text("📱 mobile: tap **Open in mobile app**, then tap **Connect** in the app.")
+            }
+            .padding(.top, 24)
+        }
+        .padding()
+    }
+}
+
+struct ChatHelp_Previews: PreviewProvider {
+    static var previews: some View {
+        @State var showSettings = false
+        return ChatHelp(showSettings: $showSettings)
+    }
+}
@@ -0,0 +1,173 @@
+//
+//  ChatListNavLink.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 01/02/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import SwiftUI
+
+struct ChatListNavLink: View {
+    @EnvironmentObject var chatModel: ChatModel
+    @State var chat: Chat
+
+    @State private var showDeleteContactAlert = false
+    @State private var showDeleteGroupAlert = false
+    @State private var showContactRequestAlert = false
+    @State private var showContactRequestDialog = false
+    @State private var alertContact: Contact?
+    @State private var alertGroupInfo: GroupInfo?
+    @State private var alertContactRequest: UserContactRequest?
+
+    var body: some View {
+        switch chat.chatInfo {
+        case let .direct(contact):
+            contactNavLink(contact)
+        case let .group(groupInfo):
+            groupNavLink(groupInfo)
+        case let .contactRequest(cReq):
+            contactRequestNavLink(cReq)
+        }
+    }
+
+    private func chatView() -> some View {
+        ChatView(chat: chat)
+        .onAppear {
+            do {
+                let cInfo = chat.chatInfo
+                let chat = try apiGetChat(type: cInfo.chatType, id: cInfo.apiId)
+                chatModel.updateChatInfo(chat.chatInfo)
+                chatModel.chatItems = chat.chatItems
+            } catch {
+                logger.error("ChatListNavLink.chatView apiGetChatItems error: \(error.localizedDescription)")
+            }
+        }
+    }
+
+    private func contactNavLink(_ contact: Contact) -> some View {
+        NavigationLink(
+            tag: chat.chatInfo.id,
+            selection: $chatModel.chatId,
+            destination: { chatView() },
+            label: { ChatPreviewView(chat: chat) }
+        )
+        .disabled(!contact.ready)
+        .swipeActions(edge: .trailing, allowsFullSwipe: true) {
+            Button(role: .destructive) {
+                alertContact = contact
+                showDeleteContactAlert = true
+            } label: {
+                Label("Delete", systemImage: "trash")
+            }
+        }
+        .alert(isPresented: $showDeleteContactAlert) {
+            deleteContactAlert(alertContact!)
+        }
+        .frame(height: 80)
+    }
+
+    private func groupNavLink(_ groupInfo: GroupInfo) -> some View {
+        NavigationLink(
+            tag: chat.chatInfo.id,
+            selection: $chatModel.chatId,
+            destination: { chatView() },
+            label: { ChatPreviewView(chat: chat) }
+        )
+        .swipeActions(edge: .trailing, allowsFullSwipe: true) {
+            Button(role: .destructive) {
+                alertGroupInfo = groupInfo
+                showDeleteGroupAlert = true
+            } label: {
+                Label("Delete", systemImage: "trash")
+            }
+        }
+        .alert(isPresented: $showDeleteGroupAlert) {
+            deleteGroupAlert(alertGroupInfo!)
+        }
+        .frame(height: 80)
+    }
+
+    private func contactRequestNavLink(_ contactRequest: UserContactRequest) -> some View {
+        ContactRequestView(contactRequest: contactRequest)
+        .swipeActions(edge: .trailing, allowsFullSwipe: true) {
+            Button { acceptContactRequest(contactRequest) }
+                label: { Label("Accept", systemImage: "checkmark") }
+                .tint(.blue)
+            Button(role: .destructive) {
+                alertContactRequest = contactRequest
+                showContactRequestAlert = true
+            } label: {
+                Label("Reject", systemImage: "multiply")
+            }
+        }
+        .alert(isPresented: $showContactRequestAlert) {
+            contactRequestAlert(alertContactRequest!)
+        }
+        .frame(height: 80)
+        .onTapGesture { showContactRequestDialog = true }
+        .confirmationDialog("Connection request", isPresented: $showContactRequestDialog, titleVisibility: .visible) {
+            Button("Accept contact") { acceptContactRequest(contactRequest) }
+            Button("Reject contact (sender NOT notified)") { rejectContactRequest(contactRequest) }
+        }
+    }
+
+    private func deleteContactAlert(_ contact: Contact) -> Alert {
+        Alert(
+            title: Text("Delete contact?"),
+            message: Text("Contact and all messages will be deleted"),
+            primaryButton: .destructive(Text("Delete")) {
+                do {
+                    try apiDeleteChat(type: .direct, id: contact.apiId)
+                    chatModel.removeChat(contact.id)
+                } catch let error {
+                    logger.error("ChatListNavLink.deleteContactAlert apiDeleteChat error: \(error.localizedDescription)")
+                }
+                alertContact = nil
+            }, secondaryButton: .cancel() {
+                alertContact = nil
+            }
+        )
+    }
+
+    private func deleteGroupAlert(_ groupInfo: GroupInfo) -> Alert {
+        Alert(
+            title: Text("Delete group"),
+            message: Text("Group deletion is not supported")
+        )
+    }
+
+    private func contactRequestAlert(_ contactRequest: UserContactRequest) -> Alert {
+        Alert(
+            title: Text("Reject contact request"),
+            message: Text("The sender will NOT be notified"),
+            primaryButton: .destructive(Text("Reject")) {
+                rejectContactRequest(contactRequest)
+                alertContactRequest = nil
+            }, secondaryButton: .cancel {
+                alertContactRequest = nil
+            }
+        )
+    }
+}
+
+struct ChatListNavLink_Previews: PreviewProvider {
+    static var previews: some View {
+        @State var chatId: String? = "@1"
+        return Group {
+            ChatListNavLink(chat: Chat(
+                chatInfo: ChatInfo.sampleData.direct,
+                chatItems: [ChatItem.getSample(1, .directSnd, .now, "hello")]
+            ))
+            ChatListNavLink(chat: Chat(
+                chatInfo: ChatInfo.sampleData.direct,
+                chatItems: [ChatItem.getSample(1, .directSnd, .now, "hello")]
+            ))
+            ChatListNavLink(chat: Chat(
+                chatInfo: ChatInfo.sampleData.contactRequest,
+                chatItems: []
+            ))
+        }
+        .previewLayout(.fixed(width: 360, height: 80))
+    }
+}
@@ -0,0 +1,119 @@
+//
+//  ChatListView.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 27/01/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import SwiftUI
+
+struct ChatListView: View {
+    @EnvironmentObject var chatModel: ChatModel
+    @State private var connectAlert = false
+    @State private var connectError: Error?
+    // not really used in this view
+    @State private var showSettings = false
+
+    var user: User
+
+    var body: some View {
+        NavigationView {
+            List {
+                if chatModel.chats.isEmpty {
+                    VStack(alignment: .leading) {
+                        ChatHelp(showSettings: $showSettings)
+                        HStack {
+                            Text("This text is available in settings")
+                            SettingsButton()
+                        }
+                        .padding(.leading)
+                    }
+                }
+                ForEach(chatModel.chats) { chat in
+                    ChatListNavLink(chat: chat)
+                }
+            }
+            .offset(x: -8)
+            .listStyle(.plain)
+            .navigationTitle(chatModel.chats.isEmpty ? "Welcome \(user.displayName)!" : "Your chats")
+            .toolbar {
+                ToolbarItem(placement: .navigationBarLeading) {
+                    SettingsButton()
+                }
+                ToolbarItem(placement: .navigationBarTrailing) {
+                    NewChatButton()
+                }
+            }
+            .alert(isPresented: $chatModel.connectViaUrl) { connectViaUrlAlert() }
+        }
+        .navigationViewStyle(.stack)
+        .alert(isPresented: $connectAlert) { connectionErrorAlert() }
+    }
+
+    private func connectViaUrlAlert() -> Alert {
+        logger.debug("ChatListView.connectViaUrlAlert")
+        if let url = chatModel.appOpenUrl {
+            var path = url.path
+            logger.debug("ChatListView.connectViaUrlAlert path: \(path)")
+            if (path == "/contact" || path == "/invitation") {
+                path.removeFirst()
+                let link = url.absoluteString.replacingOccurrences(of: "///\(path)", with: "/\(path)")
+                return Alert(
+                    title: Text("Connect via \(path) link?"),
+                    message: Text("Your profile will be sent to the contact that you received this link from: \(link)"),
+                    primaryButton: .default(Text("Connect")) {
+                        do {
+                            try apiConnect(connReq: link)
+                        } catch {
+                            connectAlert = true
+                            connectError = error
+                            logger.debug("ChatListView.connectViaUrlAlert: apiConnect error: \(error.localizedDescription)")
+                        }
+                        chatModel.appOpenUrl = nil
+                    }, secondaryButton: .cancel() {
+                        chatModel.appOpenUrl = nil
+                    }
+                )
+            } else {
+                return Alert(title: Text("Error: URL is invalid"))
+            }
+        } else {
+            return Alert(title: Text("Error: URL not available"))
+        }
+    }
+
+    private func connectionErrorAlert() -> Alert {
+        Alert(
+            title: Text("Connection error"),
+            message: Text(connectError?.localizedDescription ?? "")
+        )
+    }
+}
+
+struct ChatListView_Previews: PreviewProvider {
+    static var previews: some View {
+        let chatModel = ChatModel()
+        chatModel.chats = [
+            Chat(
+                chatInfo: ChatInfo.sampleData.direct,
+                chatItems: [ChatItem.getSample(1, .directSnd, .now, "hello")]
+            ),
+            Chat(
+                chatInfo: ChatInfo.sampleData.group,
+                chatItems: [ChatItem.getSample(1, .directSnd, .now, "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.")]
+            ),
+            Chat(
+                chatInfo: ChatInfo.sampleData.contactRequest,
+                chatItems: []
+            )
+
+        ]
+        return Group {
+            ChatListView(user: User.sampleData)
+                .environmentObject(chatModel)
+            ChatListView(user: User.sampleData)
+                .environmentObject(ChatModel())
+        }
+    }
+}
@@ -0,0 +1,91 @@
+//
+//  ChatNavLabel.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 28/01/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import SwiftUI
+
+struct ChatPreviewView: View {
+    @ObservedObject var chat: Chat
+    @Environment(\.colorScheme) var colorScheme
+    var darkGreen = Color(red: 0, green: 0.5, blue: 0)
+
+    var body: some View {
+        let cItem = chat.chatItems.last
+        return HStack(spacing: 8) {
+            ZStack(alignment: .bottomLeading) {
+                ChatInfoImage(chat: chat)
+                    .frame(width: 63, height: 63)
+                if case .direct = chat.chatInfo,
+                   chat.serverInfo.networkStatus == .connected {
+                    Image(systemName: "circle.fill")
+                        .resizable()
+                        .foregroundColor(colorScheme == .dark ? darkGreen : .green)
+                        .frame(width: 5, height: 5)
+                        .padding([.bottom, .leading], 1)
+                }
+            }
+            .padding(.leading, 4)
+
+            VStack(spacing: 0) {
+                HStack(alignment: .top) {
+                    Text(chat.chatInfo.chatViewName)
+                        .font(.title3)
+                        .fontWeight(.bold)
+                        .frame(maxHeight: .infinity, alignment: .topLeading)
+                    Spacer()
+                    Text(getDateFormatter().string(from: cItem?.meta.itemTs ?? chat.chatInfo.createdAt))
+                        .font(.subheadline)
+                        .frame(minWidth: 60, alignment: .trailing)
+                        .foregroundColor(.secondary)
+                }
+                .padding(.top, 4)
+                .padding(.horizontal, 8)
+
+                if let cItem = cItem {
+                    Text(chatItemText(cItem))
+                        .frame(minWidth: 0, maxWidth: .infinity, minHeight: 44, maxHeight: 44, alignment: .topLeading)
+                        .padding([.leading, .trailing], 8)
+                        .padding(.bottom, 4)
+                }
+                else if case let .direct(contact) = chat.chatInfo, !contact.ready {
+                    Text("Connecting...")
+                        .frame(minWidth: 0, maxWidth: .infinity, minHeight: 44, maxHeight: 44, alignment: .topLeading)
+                        .padding([.leading, .trailing], 8)
+                        .padding(.bottom, 4)
+                }
+            }
+        }
+    }
+
+    private func chatItemText(_ cItem: ChatItem) -> String {
+        let t = cItem.content.text
+        if case let .groupRcv(groupMember) = cItem.chatDir {
+            return groupMember.memberProfile.displayName + ": " +  t
+        }
+        return t
+    }
+}
+
+struct ChatPreviewView_Previews: PreviewProvider {
+    static var previews: some View {
+        Group {
+            ChatPreviewView(chat: Chat(
+                chatInfo: ChatInfo.sampleData.direct,
+                chatItems: []
+            ))
+            ChatPreviewView(chat: Chat(
+                chatInfo: ChatInfo.sampleData.direct,
+                chatItems: [ChatItem.getSample(1, .directSnd, .now, "hello")]
+            ))
+            ChatPreviewView(chat: Chat(
+                chatInfo: ChatInfo.sampleData.group,
+                chatItems: [ChatItem.getSample(1, .directSnd, .now, "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.")]
+            ))
+        }
+        .previewLayout(.fixed(width: 360, height: 78))
+    }
+}
@@ -0,0 +1,53 @@
+//
+//  ContactRequestView.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 02/02/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import SwiftUI
+
+struct ContactRequestView: View {
+    var contactRequest: UserContactRequest
+
+    var body: some View {
+        return HStack(spacing: 8) {
+            Image(systemName: "person.crop.circle.fill")
+                .resizable()
+                .foregroundColor(Color(uiColor: .secondarySystemBackground))
+                .frame(width: 63, height: 63)
+                .padding(.leading, 4)
+            VStack(alignment: .leading, spacing: 4) {
+                HStack(alignment: .top) {
+                    Text(ChatInfo.contactRequest(contactRequest: contactRequest).chatViewName)
+                        .font(.title3)
+                        .fontWeight(.bold)
+                        .foregroundColor(.blue)
+                        .padding(.leading, 8)
+                        .padding(.top, 4)
+                        .frame(maxHeight: .infinity, alignment: .topLeading)
+                    Spacer()
+                    Text(getDateFormatter().string(from: contactRequest.createdAt))
+                        .font(.subheadline)
+                        .padding(.trailing, 28)
+                        .padding(.top, 4)
+                        .frame(minWidth: 60, alignment: .trailing)
+                        .foregroundColor(.secondary)
+                }
+                Text("wants to connect to you!")
+                    .frame(minHeight: 44, maxHeight: 44, alignment: .topLeading)
+                    .padding([.leading, .trailing], 8)
+                    .padding(.bottom, 4)
+                    .padding(.top, 1)
+            }
+        }
+    }
+}
+
+struct ContactRequestView_Previews: PreviewProvider {
+    static var previews: some View {
+        ContactRequestView(contactRequest: UserContactRequest.sampleData)
+            .previewLayout(.fixed(width: 360, height: 80))
+    }
+}
@@ -0,0 +1,37 @@
+//
+//  ChatInfoImage.swift
+//  SimpleX
+//
+//  Created by Evgeny Poberezkin on 05/02/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+import SwiftUI
+
+struct ChatInfoImage: View {
+    @ObservedObject var chat: Chat
+    var color = Color(uiColor: .tertiarySystemGroupedBackground)
+
+    var body: some View {
+        var iconName: String
+        switch chat.chatInfo {
+        case .direct: iconName = "person.crop.circle.fill"
+        case .group: iconName = "person.2.circle.fill"
+        default: iconName = "circle.fill"
+        }
+
+        return Image(systemName: iconName)
+            .resizable()
+            .foregroundColor(color)
+    }
+}
+
+struct ChatInfoImage_Previews: PreviewProvider {
+    static var previews: some View {
+        ChatInfoImage(
+            chat: Chat(chatInfo: ChatInfo.sampleData.direct, chatItems: [])
+            , color:  Color(red: 0.9, green: 0.9, blue: 0.9)
+        )
+        .previewLayout(.fixed(width: 63, height: 63))
+    }
+}
--- a/Show More
+++ b/Show More