use simplified chat controller, fix keyboard removing on tap (#275)

This commit is contained in:
Evgeny Poberezkin
2022-02-06 18:26:22 +00:00
committed by GitHub
parent 408a30c25b
commit 8efb8b2f86
9 changed files with 77 additions and 88 deletions
+2 -11
View File
@@ -14,20 +14,11 @@ struct ContentView: View {
if let user = chatModel.currentUser {
ChatListView(user: user)
.onAppear {
DispatchQueue.global().async {
while(true) {
do {
try processReceivedMsg(chatModel, chatRecvMsg())
} catch {
print("error receiving message: ", error)
}
}
}
do {
try apiStartChat()
chatModel.chats = try apiGetChats()
} catch {
print(error)
fatalError("Failed to start or load chats: \(error)")
}
}
} else {
+25 -37
View File
@@ -9,7 +9,6 @@
import Foundation
import UIKit
private var chatStore: chat_store?
private var chatController: chat_ctrl?
private let jsonDecoder = getJSONDecoder()
private let jsonEncoder = getJSONEncoder()
@@ -186,27 +185,6 @@ enum TerminalItem: Identifiable {
}
}
func chatGetUser() -> User? {
let store = getStore()
print("chatGetUser")
let r: UserResponse? = decodeCJSON(chat_get_user(store))
let user = r?.user
if user != nil { initChatCtrl(store) }
print("user", user as Any)
return user
}
func chatCreateUser(_ p: Profile) -> User? {
let store = getStore()
print("chatCreateUser")
var str = encodeCJSON(p)
chat_create_user(store, &str)
let user = chatGetUser()
if user != nil { initChatCtrl(store) }
print("user", user as Any)
return user
}
func chatSendCmd(_ cmd: ChatCommand) throws -> ChatResponse {
var c = cmd.cmdString.cString(using: .utf8)!
print("command", cmd.cmdString)
@@ -222,6 +200,27 @@ func chatRecvMsg() throws -> ChatResponse {
chatResponse(chat_recv_msg(getChatCtrl())!)
}
func apiGetActiveUser() throws -> User? {
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) } }
@@ -384,23 +383,12 @@ func prettyJSON(_ obj: NSDictionary) -> String? {
return nil
}
private func getStore() -> chat_store {
if let store = chatStore { return store }
let dataDir = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!.path + "/mobile_v1"
var cstr = dataDir.cString(using: .utf8)!
chatStore = chat_init_store(&cstr)
return chatStore!
}
private func initChatCtrl(_ store: chat_store) {
if chatController == nil {
chatController = chat_start(store)
}
}
private func getChatCtrl() -> chat_ctrl {
if let controller = chatController { return controller }
fatalError("Chat controller was not started!")
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? {
@@ -4,12 +4,8 @@
extern void hs_init(int argc, char **argv[]);
typedef void* chat_store;
typedef void* chat_ctrl;
extern chat_store chat_init_store(char *path);
extern char *chat_get_user(chat_store store);
extern char *chat_create_user(chat_store store, char *data);
extern chat_ctrl chat_start(chat_store store);
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);
@@ -2,14 +2,10 @@
// 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[]);
extern void hs_init(int argc, char **argv[]);
typedef void* chat_store;
typedef void* chat_ctrl;
extern chat_store chat_init_store(char * path);
extern char *chat_get_user(chat_store store);
extern char *chat_create_user(chat_store store, char *data);
extern chat_ctrl chat_start(chat_store store);
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);
+15 -1
View File
@@ -25,7 +25,21 @@ struct SimpleXApp: App {
print(url)
}
.onAppear() {
chatModel.currentUser = chatGetUser()
DispatchQueue.global().async {
while(true) {
do {
try processReceivedMsg(chatModel, chatRecvMsg())
} catch {
print("error receiving message: ", error)
}
}
}
do {
chatModel.currentUser = try apiGetActiveUser()
} catch {
fatalError("Failed to initialize chat controller or database: \(error)")
}
}
}
}
+3 -3
View File
@@ -27,6 +27,9 @@ struct ChatView: View {
.onChange(of: chatModel.chatItems.count) { _ in scrollToBottom(proxy) }
}
}
.onTapGesture {
UIApplication.shared.sendAction(#selector(UIResponder.resignFirstResponder), to: nil, from: nil, for: nil)
}
}
}
@@ -66,9 +69,6 @@ struct ChatView: View {
}
}
.navigationBarBackButtonHidden(true)
.onTapGesture {
UIApplication.shared.sendAction(#selector(UIResponder.resignFirstResponder), to: nil, from: nil, for: nil)
}
}
func scrollToBottom(_ proxy: ScrollViewProxy) {
+4 -1
View File
@@ -32,8 +32,11 @@ struct WelcomeView: View {
displayName: displayName,
fullName: fullName
)
if let user = chatCreateUser(profile) {
do {
let user = try apiCreateActiveUser(profile)
chatModel.currentUser = user
} catch {
fatalError("Failed to create user: \(error)")
}
}
}
+24 -24
View File
@@ -11,9 +11,6 @@
5C063D2827A4564100AEC577 /* ChatPreviewView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C063D2627A4564100AEC577 /* ChatPreviewView.swift */; };
5C116CDC27AABE0400E66D01 /* ContactRequestView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C116CDB27AABE0400E66D01 /* ContactRequestView.swift */; };
5C116CDD27AABE0400E66D01 /* ContactRequestView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C116CDB27AABE0400E66D01 /* ContactRequestView.swift */; };
5C116CF027ABC81C00E66D01 /* libgmp.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C116CEB27ABC81C00E66D01 /* libgmp.a */; };
5C116CF127ABC81C00E66D01 /* libgmpxx.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C116CEC27ABC81C00E66D01 /* libgmpxx.a */; };
5C116CF227ABC81C00E66D01 /* libffi.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C116CED27ABC81C00E66D01 /* libffi.a */; };
5C1A4C1E27A715B700EAD5AD /* ChatItemView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C1A4C1D27A715B700EAD5AD /* ChatItemView.swift */; };
5C1A4C1F27A715B700EAD5AD /* ChatItemView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C1A4C1D27A715B700EAD5AD /* ChatItemView.swift */; };
5C2E260727A2941F00F70299 /* SimpleXAPI.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C2E260627A2941F00F70299 /* SimpleXAPI.swift */; };
@@ -24,6 +21,11 @@
5C2E261027A30FDC00F70299 /* ChatView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C2E260E27A30FDC00F70299 /* ChatView.swift */; };
5C2E261227A30FEA00F70299 /* TerminalView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C2E261127A30FEA00F70299 /* TerminalView.swift */; };
5C2E261327A30FEA00F70299 /* TerminalView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C2E261127A30FEA00F70299 /* TerminalView.swift */; };
5C35CF6F27B031FB00FB6C6D /* libgmpxx.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C35CF6A27B031FB00FB6C6D /* libgmpxx.a */; };
5C35CF7027B031FB00FB6C6D /* libHSsimplex-chat-1.1.0-Cr0nZom8Et1JJ5D58xT8LZ.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C35CF6B27B031FB00FB6C6D /* libHSsimplex-chat-1.1.0-Cr0nZom8Et1JJ5D58xT8LZ.a */; };
5C35CF7127B031FB00FB6C6D /* libgmp.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C35CF6C27B031FB00FB6C6D /* libgmp.a */; };
5C35CF7227B031FB00FB6C6D /* libffi.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C35CF6D27B031FB00FB6C6D /* libffi.a */; };
5C35CF7327B031FB00FB6C6D /* libHSsimplex-chat-1.1.0-Cr0nZom8Et1JJ5D58xT8LZ-ghc8.10.7.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C35CF6E27B031FB00FB6C6D /* libHSsimplex-chat-1.1.0-Cr0nZom8Et1JJ5D58xT8LZ-ghc8.10.7.a */; };
5C6AD81327A834E300348BD7 /* NewChatButton.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C6AD81227A834E300348BD7 /* NewChatButton.swift */; };
5C6AD81427A834E300348BD7 /* NewChatButton.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C6AD81227A834E300348BD7 /* NewChatButton.swift */; };
5C764E80279C7276000C6508 /* dummy.m in Sources */ = {isa = PBXBuildFile; fileRef = 5C764E7F279C7276000C6508 /* dummy.m */; };
@@ -75,8 +77,6 @@
5CCD403827A5F9A200368C90 /* ConnectContactView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CCD403627A5F9A200368C90 /* ConnectContactView.swift */; };
5CCD403A27A5F9BE00368C90 /* CreateGroupView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CCD403927A5F9BE00368C90 /* CreateGroupView.swift */; };
5CCD403B27A5F9BE00368C90 /* CreateGroupView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CCD403927A5F9BE00368C90 /* CreateGroupView.swift */; };
5CE4406F27AD2648007B033A /* libHSsimplex-chat-1.1.0-1RUev578BUjGkBObUSYLQi.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5CE4406D27AD2648007B033A /* libHSsimplex-chat-1.1.0-1RUev578BUjGkBObUSYLQi.a */; };
5CE4407027AD2648007B033A /* libHSsimplex-chat-1.1.0-1RUev578BUjGkBObUSYLQi-ghc8.10.7.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5CE4406E27AD2648007B033A /* libHSsimplex-chat-1.1.0-1RUev578BUjGkBObUSYLQi-ghc8.10.7.a */; };
5CE4407227ADB1D0007B033A /* Emoji.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CE4407127ADB1D0007B033A /* Emoji.swift */; };
5CE4407327ADB1D0007B033A /* Emoji.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CE4407127ADB1D0007B033A /* Emoji.swift */; };
5CE4407627ADB66A007B033A /* TextItemView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CE4407527ADB66A007B033A /* TextItemView.swift */; };
@@ -105,15 +105,17 @@
/* Begin PBXFileReference section */
5C063D2627A4564100AEC577 /* ChatPreviewView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChatPreviewView.swift; sourceTree = "<group>"; };
5C116CDB27AABE0400E66D01 /* ContactRequestView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContactRequestView.swift; sourceTree = "<group>"; };
5C116CEB27ABC81C00E66D01 /* libgmp.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libgmp.a; sourceTree = "<group>"; };
5C116CEC27ABC81C00E66D01 /* libgmpxx.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libgmpxx.a; sourceTree = "<group>"; };
5C116CED27ABC81C00E66D01 /* libffi.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libffi.a; sourceTree = "<group>"; };
5C1A4C1D27A715B700EAD5AD /* ChatItemView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChatItemView.swift; sourceTree = "<group>"; };
5C2E260627A2941F00F70299 /* SimpleXAPI.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SimpleXAPI.swift; sourceTree = "<group>"; };
5C2E260927A2C63500F70299 /* MyPlayground.playground */ = {isa = PBXFileReference; lastKnownFileType = file.playground; path = MyPlayground.playground; sourceTree = "<group>"; xcLanguageSpecificationIdentifier = xcode.lang.swift; };
5C2E260A27A30CFA00F70299 /* ChatListView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChatListView.swift; sourceTree = "<group>"; };
5C2E260E27A30FDC00F70299 /* ChatView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChatView.swift; sourceTree = "<group>"; };
5C2E261127A30FEA00F70299 /* TerminalView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TerminalView.swift; sourceTree = "<group>"; };
5C35CF6A27B031FB00FB6C6D /* libgmpxx.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libgmpxx.a; sourceTree = "<group>"; };
5C35CF6B27B031FB00FB6C6D /* libHSsimplex-chat-1.1.0-Cr0nZom8Et1JJ5D58xT8LZ.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = "libHSsimplex-chat-1.1.0-Cr0nZom8Et1JJ5D58xT8LZ.a"; sourceTree = "<group>"; };
5C35CF6C27B031FB00FB6C6D /* libgmp.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libgmp.a; sourceTree = "<group>"; };
5C35CF6D27B031FB00FB6C6D /* libffi.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libffi.a; sourceTree = "<group>"; };
5C35CF6E27B031FB00FB6C6D /* libHSsimplex-chat-1.1.0-Cr0nZom8Et1JJ5D58xT8LZ-ghc8.10.7.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = "libHSsimplex-chat-1.1.0-Cr0nZom8Et1JJ5D58xT8LZ-ghc8.10.7.a"; sourceTree = "<group>"; };
5C422A7C27A9A6FA0097A1E1 /* SimpleX (iOS).entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = "SimpleX (iOS).entitlements"; sourceTree = "<group>"; };
5C6AD81227A834E300348BD7 /* NewChatButton.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NewChatButton.swift; sourceTree = "<group>"; };
5C764E7B279C71D4000C6508 /* libiconv.tbd */ = {isa = PBXFileReference; lastKnownFileType = "sourcecode.text-based-dylib-definition"; name = libiconv.tbd; path = Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS15.2.sdk/usr/lib/libiconv.tbd; sourceTree = DEVELOPER_DIR; };
@@ -148,8 +150,6 @@
5CCD403327A5F6DF00368C90 /* AddContactView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AddContactView.swift; sourceTree = "<group>"; };
5CCD403627A5F9A200368C90 /* ConnectContactView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ConnectContactView.swift; sourceTree = "<group>"; };
5CCD403927A5F9BE00368C90 /* CreateGroupView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CreateGroupView.swift; sourceTree = "<group>"; };
5CE4406D27AD2648007B033A /* libHSsimplex-chat-1.1.0-1RUev578BUjGkBObUSYLQi.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = "libHSsimplex-chat-1.1.0-1RUev578BUjGkBObUSYLQi.a"; sourceTree = "<group>"; };
5CE4406E27AD2648007B033A /* libHSsimplex-chat-1.1.0-1RUev578BUjGkBObUSYLQi-ghc8.10.7.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = "libHSsimplex-chat-1.1.0-1RUev578BUjGkBObUSYLQi-ghc8.10.7.a"; sourceTree = "<group>"; };
5CE4407127ADB1D0007B033A /* Emoji.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Emoji.swift; sourceTree = "<group>"; };
5CE4407527ADB66A007B033A /* TextItemView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TextItemView.swift; sourceTree = "<group>"; };
5CE4407827ADB701007B033A /* EmojiItemView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = EmojiItemView.swift; sourceTree = "<group>"; };
@@ -160,13 +160,13 @@
isa = PBXFrameworksBuildPhase;
buildActionMask = 2147483647;
files = (
5CE4406F27AD2648007B033A /* libHSsimplex-chat-1.1.0-1RUev578BUjGkBObUSYLQi.a in Frameworks */,
5CE4407027AD2648007B033A /* libHSsimplex-chat-1.1.0-1RUev578BUjGkBObUSYLQi-ghc8.10.7.a in Frameworks */,
5C35CF7027B031FB00FB6C6D /* libHSsimplex-chat-1.1.0-Cr0nZom8Et1JJ5D58xT8LZ.a in Frameworks */,
5C35CF6F27B031FB00FB6C6D /* libgmpxx.a in Frameworks */,
5C8F01CD27A6F0D8007D2C8D /* CodeScanner in Frameworks */,
5C116CF227ABC81C00E66D01 /* libffi.a in Frameworks */,
5C116CF127ABC81C00E66D01 /* libgmpxx.a in Frameworks */,
5C764E83279C748B000C6508 /* libz.tbd in Frameworks */,
5C116CF027ABC81C00E66D01 /* libgmp.a in Frameworks */,
5C35CF7327B031FB00FB6C6D /* libHSsimplex-chat-1.1.0-Cr0nZom8Et1JJ5D58xT8LZ-ghc8.10.7.a in Frameworks */,
5C35CF7227B031FB00FB6C6D /* libffi.a in Frameworks */,
5C35CF7127B031FB00FB6C6D /* libgmp.a in Frameworks */,
5C764E82279C748B000C6508 /* libiconv.tbd in Frameworks */,
);
runOnlyForDeploymentPostprocessing = 0;
@@ -227,11 +227,11 @@
5C764E5C279C70B7000C6508 /* Libraries */ = {
isa = PBXGroup;
children = (
5C116CED27ABC81C00E66D01 /* libffi.a */,
5C116CEB27ABC81C00E66D01 /* libgmp.a */,
5C116CEC27ABC81C00E66D01 /* libgmpxx.a */,
5CE4406E27AD2648007B033A /* libHSsimplex-chat-1.1.0-1RUev578BUjGkBObUSYLQi-ghc8.10.7.a */,
5CE4406D27AD2648007B033A /* libHSsimplex-chat-1.1.0-1RUev578BUjGkBObUSYLQi.a */,
5C35CF6D27B031FB00FB6C6D /* libffi.a */,
5C35CF6C27B031FB00FB6C6D /* libgmp.a */,
5C35CF6A27B031FB00FB6C6D /* libgmpxx.a */,
5C35CF6E27B031FB00FB6C6D /* libHSsimplex-chat-1.1.0-Cr0nZom8Et1JJ5D58xT8LZ-ghc8.10.7.a */,
5C35CF6B27B031FB00FB6C6D /* libHSsimplex-chat-1.1.0-Cr0nZom8Et1JJ5D58xT8LZ.a */,
);
path = Libraries;
sourceTree = "<group>";
@@ -763,7 +763,7 @@
CLANG_ENABLE_MODULES = YES;
CODE_SIGN_ENTITLEMENTS = "SimpleX (iOS).entitlements";
CODE_SIGN_STYLE = Automatic;
CURRENT_PROJECT_VERSION = 2;
CURRENT_PROJECT_VERSION = 3;
DEVELOPMENT_TEAM = 5NN7GUYB6T;
ENABLE_BITCODE = NO;
ENABLE_PREVIEWS = YES;
@@ -783,7 +783,7 @@
LIBRARY_SEARCH_PATHS = "$(PROJECT_DIR)/Libraries";
"LIBRARY_SEARCH_PATHS[sdk=iphoneos*]" = "$(PROJECT_DIR)/Libraries/ios";
"LIBRARY_SEARCH_PATHS[sdk=iphonesimulator*]" = "$(PROJECT_DIR)/Libraries/sim";
MARKETING_VERSION = 1.0.1;
MARKETING_VERSION = 0.2.0;
PRODUCT_BUNDLE_IDENTIFIER = chat.simplex.app;
PRODUCT_NAME = SimpleX;
SDKROOT = iphoneos;
@@ -803,7 +803,7 @@
CLANG_ENABLE_MODULES = YES;
CODE_SIGN_ENTITLEMENTS = "SimpleX (iOS).entitlements";
CODE_SIGN_STYLE = Automatic;
CURRENT_PROJECT_VERSION = 2;
CURRENT_PROJECT_VERSION = 3;
DEVELOPMENT_TEAM = 5NN7GUYB6T;
ENABLE_BITCODE = NO;
ENABLE_PREVIEWS = YES;
@@ -823,7 +823,7 @@
LIBRARY_SEARCH_PATHS = "$(PROJECT_DIR)/Libraries";
"LIBRARY_SEARCH_PATHS[sdk=iphoneos*]" = "$(PROJECT_DIR)/Libraries/ios";
"LIBRARY_SEARCH_PATHS[sdk=iphonesimulator*]" = "$(PROJECT_DIR)/Libraries/sim";
MARKETING_VERSION = 1.0.1;
MARKETING_VERSION = 0.2.0;
PRODUCT_BUNDLE_IDENTIFIER = chat.simplex.app;
PRODUCT_NAME = SimpleX;
SDKROOT = iphoneos;
+1
View File
@@ -2464,6 +2464,7 @@ createWithRandomBytes size gVar create = tryCreate 3
randomBytes :: TVar ChaChaDRG -> Int -> IO ByteString
randomBytes gVar n = B64.encode <$> (atomically . stateTVar gVar $ randomBytesGenerate n)
-- These error type constructors must be added to mobile apps
data StoreError
= SEDuplicateName
| SEContactNotFound {contactId :: Int64}