UTS chat adapter

.github/workflows/unified-test-suite.yml

@@ -0,0 +1,39 @@
+name: Unified Test Suite
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  unified-test-suite:
+    runs-on: macos-15
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js 20
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+
+      - run: npm ci
+
+      - name: Install uts-chat globally
+        run: npm install -g @ably-labs/uts-chat
+
+      # This step can be removed once the runners' default version of Xcode is 16 or above
+      - name: Setup Xcode
+        uses: maxim-lobanov/setup-xcode@v1
+        with:
+          xcode-version: 16
+
+      - name: Prepare Adapter
+        working-directory: UTSChatAdapter
+        run: swift build --target Adapter
+
+      - name: Run uts-chat with ADAPTER_EXECUTABLE
+        env:
+          ADAPTER_EXECUTABLE: cd UTSChatAdapter && swift run UTSChatAdapter
+        run: uts-chat

.swiftlint.yml

@@ -1,5 +1,6 @@
 excluded:
   - .build
+  - UTSChatAdapter/Sources/Adapter/NanoID.swift
 
 strict: true
 

AblyChat.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -1,5 +1,5 @@
 {
-  "originHash" : "a296396707b7685153f4cf548f6281f483d562002fe11235f1fc3bb053be91d7",
+  "originHash" : "1ad2d7338668d15feccbf564582941161acd47349bfca8f34374e11c69677ae8",
   "pins" : [
     {
       "identity" : "ably-cocoa",

Sources/AblyChat/ChatClient.swift

@@ -29,7 +29,7 @@ public actor DefaultChatClient: ChatClient {
     }
 
     public nonisolated var clientID: String {
-        fatalError("Not yet implemented")
+        realtime.clientId ?? "<Noname>"
     }
 }
 

Sources/AblyChat/DefaultMessages.swift

@@ -188,6 +188,10 @@ internal final class DefaultMessages: Messages, EmitsDiscontinuities {
             }
         }
 
+        if channel.state == .initialized {
+            channel.attach()
+        }
+
         // (CHA-M5b) If a subscription is added when the underlying realtime channel is in any other state, then its subscription point becomes the attachSerial at the the point of channel attachment.
         return try await timeserialOnChannelAttach()
     }

Sources/AblyChat/Errors.swift

@@ -14,7 +14,7 @@ public enum ErrorCode: Int {
     /// ``Rooms.get(roomID:options:)`` was called with a different set of room options than was used on a previous call. You must first release the existing room instance using ``Rooms.release(roomID:)``.
     ///
     /// TODO this code is a guess, revisit in https://github.com/ably-labs/ably-chat-swift/issues/32
-    case inconsistentRoomOptions = 1
+    case inconsistentRoomOptions = 40000
 
     case messagesAttachmentFailed = 102_001
     case presenceAttachmentFailed = 102_002

UTSChatAdapter/.gitignore

@@ -0,0 +1,13 @@
+# Start of .gitignore created by Swift Package Manager
+.DS_Store
+/.build
+/Packages
+xcuserdata/
+DerivedData/
+.swiftpm/configuration/registries.json
+.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
+.netrc
+# End of .gitignore created by Swift Package Manager
+
+/node_modules
+/.mint

UTSChatAdapter/Package.resolved

@@ -0,0 +1,51 @@
+{
+  "originHash" : "1e440d9500a61178defdb136b0459b00cd00a3c57aa142d698fd712060f7b673",
+  "pins" : [
+    {
+      "identity" : "ably-cocoa",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/ably/ably-cocoa",
+      "state" : {
+        "branch" : "main",
+        "revision" : "f7bff4b1c941b4c7b952b9224a33674e2302e19f"
+      }
+    },
+    {
+      "identity" : "delta-codec-cocoa",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/ably/delta-codec-cocoa",
+      "state" : {
+        "revision" : "3ee62ea40a63996b55818d44b3f0e56d8753be88",
+        "version" : "1.3.3"
+      }
+    },
+    {
+      "identity" : "msgpack-objective-c",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/rvi/msgpack-objective-C",
+      "state" : {
+        "revision" : "3e36b48e04ecd756cb927bd5f5b9bf6d45e475f9",
+        "version" : "0.4.0"
+      }
+    },
+    {
+      "identity" : "swift-async-algorithms",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-async-algorithms",
+      "state" : {
+        "revision" : "5c8bd186f48c16af0775972700626f0b74588278",
+        "version" : "1.0.2"
+      }
+    },
+    {
+      "identity" : "swift-collections",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-collections.git",
+      "state" : {
+        "revision" : "671108c96644956dddcd89dd59c203dcdb36cec7",
+        "version" : "1.1.4"
+      }
+    }
+  ],
+  "version" : 3
+}

UTSChatAdapter/Package.swift

@@ -0,0 +1,45 @@
+// swift-tools-version: 6.0
+
+import PackageDescription
+
+let package = Package(
+    name: "UTSChatAdapter",
+    platforms: [
+        .macOS(.v13),
+        .iOS(.v14),
+        .tvOS(.v14),
+    ],
+    products: [
+        .executable(
+            name: "UTSChatAdapter",
+            targets: [
+                "Adapter",
+            ]
+        ),
+        .executable(
+            name: "UTSChatAdapterGenerator",
+            targets: [
+                "Generator",
+            ]
+        ),
+    ],
+    dependencies: [
+        .package(
+            path: "../" // AblyChat
+        ),
+    ],
+    targets: [
+        .executableTarget(
+            name: "Adapter",
+            dependencies: [
+                .product(
+                    name: "AblyChat",
+                    package: "ably-chat-swift"
+                ),
+            ]
+        ),
+        .executableTarget(
+            name: "Generator"
+        ),
+    ]
+)