Merge branch 'master' into chat-relays

apps/ios/Shared/Views/Database/DatabaseErrorView.swift

@@ -79,12 +79,25 @@ struct DatabaseErrorView: View {
                         fileNameText(dbFile)
                     }
                 case let .downgrade(downMigrations):
+                    let warnings = downMigrationWarnings(downMigrations).reversed()
                     titleText("Database downgrade")
+                    Spacer()
+                    Image(systemName: "exclamationmark.triangle.fill")
+                        .resizable()
+                        .frame(width: 40, height: 36)
+                        .foregroundColor(.red)
                     Text("Warning: you may lose some data!")
                         .bold()
                         .padding(.horizontal, 25)
                         .multilineTextAlignment(.center)
-
+                    if !warnings.isEmpty {
+                        ForEach(warnings, id: \.self) { warning in
+                            Text(warning)
+                                .bold()
+                                .multilineTextAlignment(.center)
+                                .padding(.horizontal, 25)
+                        }
+                    }
                     migrationsText(downMigrations)
                     Spacer()
                     VStack(spacing: 10) {

apps/ios/Shared/Views/Migration/MigrateToDevice.swift

@@ -374,10 +374,12 @@ struct MigrateToDevice: View {
                     "Upgrade and open chat",
                      "",
                      .yesUp)
-                case .downgrade:
+                case let .downgrade(downMigrations):
                     ("Database downgrade",
                     "Downgrade and open chat",
-                     NSLocalizedString("Warning: you may lose some data!", comment: ""),
+                     ([NSLocalizedString("Warning: you may lose some data!", comment: "")]
+                        + downMigrationWarnings(downMigrations).reversed())
+                        .joined(separator: "\n"),
                     .yesUpDown)
                 case let .migrationError(mtrError):
                     ("Incompatible database version",

apps/ios/SimpleXChat/API.swift

@@ -369,6 +369,15 @@ public struct UpMigration: Decodable, Equatable {
 //    public var withDown: Bool
 }
 
+public func downMigrationWarnings(_ downMigrations: [String]) -> [String] {
+    let warnings: [(String, String)] = [
+        ("20260222_chat_relays", NSLocalizedString("If you joined or created channels, they will stop working permanently.", comment: "down migration warning"))
+    ]
+    return warnings.compactMap { (key, message) in
+        downMigrations.contains(key) ? message : nil
+    }
+}
+
 public enum MTRError: Decodable, Equatable {
     case noDown(dbMigrations: [String])
     case different(appMigration: String, dbMigration: String)

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/database/DatabaseErrorView.kt

@@ -9,6 +9,7 @@ import androidx.compose.foundation.text.KeyboardActions
 import androidx.compose.material.*
 import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.focus.FocusRequester
 import androidx.compose.ui.focus.focusRequester
@@ -117,12 +118,25 @@ fun DatabaseErrorView(
           OpenDatabaseDirectoryButton()
         }
         is MigrationError.Downgrade -> {
+          val warnings = downMigrationWarnings(err.downMigrations).reversed()
           DatabaseErrorDetails(MR.strings.database_downgrade) {
             TextButton({ callRunChat(confirmMigrations = MigrationConfirmation.YesUpDown) }, Modifier.align(Alignment.CenterHorizontally), enabled = !progressIndicator.value) {
               Text(generalGetString(MR.strings.downgrade_and_open_chat))
             }
             Spacer(Modifier.height(20.dp))
+            Icon(
+              painterResource(MR.images.ic_warning_filled),
+              contentDescription = null,
+              Modifier.size(40.dp).align(Alignment.CenterHorizontally),
+              tint = Color.Red
+            )
+            Spacer(Modifier.height(12.dp))
             Text(generalGetString(MR.strings.database_downgrade_warning), fontWeight = FontWeight.Bold)
+            if (warnings.isNotEmpty()) {
+              warnings.forEach { warning ->
+                Text(warning, fontWeight = FontWeight.Bold)
+              }
+            }
             FileNameText(status.dbFile)
             MigrationsText(err.downMigrations)
             AppVersionText()

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/helpers/DatabaseUtils.kt

@@ -2,6 +2,7 @@ package chat.simplex.common.views.helpers
 
 import chat.simplex.common.model.*
 import chat.simplex.common.platform.*
+import chat.simplex.res.MR
 import kotlinx.serialization.*
 import java.io.File
 import java.security.SecureRandom
@@ -108,6 +109,15 @@ data class UpMigration(
   // val withDown: Boolean
 )
 
+fun downMigrationWarnings(downMigrations: List<String>): List<String> {
+  val warnings = listOf(
+    "20260222_chat_relays" to MR.strings.down_migration_warning_chat_relays
+  )
+  return warnings.mapNotNull { (key, res) ->
+    if (downMigrations.contains(key)) generalGetString(res) else null
+  }
+}
+
 @Serializable
 sealed class MTRError {
   @Serializable @SerialName("noDown") class NoDown(val dbMigrations: List<String>): MTRError()

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/migration/MigrateToDevice.kt

@@ -474,7 +474,9 @@ private fun MutableState<MigrationToState?>.MigrationConfirmationView(status: DB
         Tuple4(
           generalGetString(MR.strings.database_downgrade),
           generalGetString(MR.strings.downgrade_and_open_chat),
-          generalGetString(MR.strings.database_downgrade_warning),
+          (listOf(generalGetString(MR.strings.database_downgrade_warning))
+            + downMigrationWarnings(err.downMigrations).reversed())
+            .joinToString("\n"),
           MigrationConfirmation.YesUpDown
         )
       is MigrationError.Error ->

apps/multiplatform/common/src/commonMain/resources/MR/base/strings.xml

@@ -1647,6 +1647,7 @@
   <string name="mtr_error_different">different migration in the app/database: %s / %s</string>
   <string name="database_migrations">Migrations: %s</string>
   <string name="database_downgrade_warning">Warning: you may lose some data!</string>
+  <string name="down_migration_warning_chat_relays">If you joined or created channels, they will stop working permanently.</string>
 
   <!-- ChatModel.chatRunning interactions -->
   <string name="chat_is_stopped_indication">Chat is stopped</string>