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Spec complete for sending and receiving messages
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| import Ably | ||
| import AblyChat | ||
| import SwiftUI | ||
|
|
||
| // TODO: This entire file can be removed and replaced with the actual example app we're going with. Leaving it here as a reference to something that is currently working. | ||
|
|
||
| let clientId = "" // Set any string as a ClientID here e.g. "John" | ||
| let apiKey = "" // Set your Ably API Key here | ||
|
|
||
| struct MessageCell: View { | ||
| var contentMessage: String | ||
| var isCurrentUser: Bool | ||
|
|
||
| var body: some View { | ||
| Text(contentMessage) | ||
| .padding(12) | ||
| .foregroundColor(isCurrentUser ? Color.white : Color.black) | ||
| .background(isCurrentUser ? Color.blue : Color.gray) | ||
| .cornerRadius(12) | ||
| } | ||
| } | ||
|
|
||
| struct MessageView: View { | ||
| var currentMessage: Message | ||
|
|
||
| var body: some View { | ||
| HStack(alignment: .bottom) { | ||
| if let messageClientId = currentMessage.clientID { | ||
| if messageClientId == clientId { | ||
| Spacer() | ||
| } else {} | ||
| MessageCell( | ||
| contentMessage: currentMessage.text, | ||
| isCurrentUser: messageClientId == clientId | ||
| ) | ||
| } | ||
| } | ||
| .frame(maxWidth: .infinity, alignment: .leading) | ||
| .padding(.horizontal, 16) | ||
| .padding(.vertical, 4) | ||
| } | ||
| } | ||
|
|
||
| struct MessageDemoView: View { | ||
| @State private var messages: [Message] = [] // Store the chat messages | ||
| @State private var newMessage: String = "" // Store the message user is typing | ||
| @State private var room: Room? // Keep track of the chat room | ||
|
|
||
| var clientOptions: ARTClientOptions { | ||
| let options = ARTClientOptions() | ||
| options.clientId = clientId | ||
| options.key = apiKey | ||
| return options | ||
| } | ||
|
|
||
| var body: some View { | ||
| VStack { | ||
| ScrollViewReader { proxy in | ||
| ScrollView { | ||
| LazyVStack(spacing: 0) { | ||
| ForEach(messages, id: \.self) { message in | ||
| MessageView(currentMessage: message) | ||
| .id(message) | ||
| } | ||
| } | ||
| .onChange(of: messages.count) { | ||
| withAnimation { | ||
| proxy.scrollTo(messages.last, anchor: .bottom) | ||
| } | ||
| } | ||
| .onAppear { | ||
| withAnimation { | ||
| proxy.scrollTo(messages.last, anchor: .bottom) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // send new message | ||
| HStack { | ||
| TextField("Send a message", text: $newMessage) | ||
| #if !os(tvOS) | ||
| .textFieldStyle(.roundedBorder) | ||
| #endif | ||
| Button(action: sendMessage) { | ||
| Image(systemName: "paperplane") | ||
| } | ||
| } | ||
| .padding() | ||
| } | ||
| .task { | ||
| await startChat() | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func startChat() async { | ||
| let realtime = ARTRealtime(options: clientOptions) | ||
|
|
||
| let chatClient = DefaultChatClient( | ||
| realtime: realtime, | ||
| clientOptions: nil | ||
| ) | ||
|
|
||
| do { | ||
| // Get the chat room | ||
| room = try await chatClient.rooms.get(roomID: "umairsDemoRoom1", options: .init()) | ||
|
|
||
| // attach to room | ||
| try await room?.attach() | ||
|
|
||
| // subscribe to messages | ||
| let subscription = try await room?.messages.subscribe(bufferingPolicy: .unbounded) | ||
|
|
||
| // use subscription to get previous messages | ||
| let prevMessages = try await subscription?.getPreviousMessages(params: .init(orderBy: .oldestFirst)) | ||
|
|
||
| // init local messages array with previous messages | ||
| messages = .init(prevMessages?.items ?? []) | ||
|
|
||
| // append new messages to local messages array as they are emitted | ||
| if let subscription { | ||
| for await message in subscription { | ||
| messages.append(message) | ||
| } | ||
| } | ||
| } catch { | ||
| print("Error starting chat: \(error)") | ||
| } | ||
| } | ||
|
|
||
| func sendMessage() { | ||
| guard !newMessage.isEmpty else { | ||
| return | ||
| } | ||
| Task { | ||
| do { | ||
| _ = try await room?.messages.send(params: .init(text: newMessage)) | ||
|
|
||
| // Clear the text field after sending | ||
| newMessage = "" | ||
| } catch { | ||
| print("Error sending message: \(error)") | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| #Preview { | ||
| MessageDemoView() | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| // swift-tools-version: 6.0 | ||
|
|
||
| import PackageDescription | ||
|
|
||
| let package = Package( | ||
| name: "AblyChat", | ||
| platforms: [ | ||
| .macOS(.v12), | ||
| .iOS(.v14), | ||
| .tvOS(.v14), | ||
| ], | ||
| products: [ | ||
| .library( | ||
| name: "AblyChat", | ||
| targets: [ | ||
| "AblyChat", | ||
| ] | ||
| ), | ||
| ], | ||
| dependencies: [ | ||
| .package( | ||
| url: "https://github.com/ably/ably-cocoa", | ||
| branch: "main" | ||
| ), | ||
| .package( | ||
| url: "https://github.com/apple/swift-argument-parser", | ||
| from: "1.5.0" | ||
| ), | ||
| .package( | ||
| url: "https://github.com/apple/swift-async-algorithms", | ||
| from: "1.0.1" | ||
| ), | ||
| ], | ||
| targets: [ | ||
| .target( | ||
| name: "AblyChat", | ||
| dependencies: [ | ||
| .product( | ||
| name: "Ably", | ||
| package: "ably-cocoa" | ||
| ), | ||
| ] | ||
| ), | ||
| .testTarget( | ||
| name: "AblyChatTests", | ||
| dependencies: [ | ||
| "AblyChat", | ||
| .product( | ||
| name: "AsyncAlgorithms", | ||
| package: "swift-async-algorithms" | ||
| ), | ||
| ] | ||
| ), | ||
| .executableTarget( | ||
| name: "BuildTool", | ||
| dependencies: [ | ||
| .product( | ||
| name: "ArgumentParser", | ||
| package: "swift-argument-parser" | ||
| ), | ||
| .product( | ||
| name: "AsyncAlgorithms", | ||
| package: "swift-async-algorithms" | ||
| ), | ||
| ] | ||
| ), | ||
| ] | ||
| ) |
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