Expand iOS messaging shell actions

apps/ios/TeleTuiIOS/Sources/TeleTuiIOSCore/ViewModels.swift

@@ -116,6 +116,10 @@ public final class ChatViewModel: ObservableObject {
     @Published public private(set) var messages: [Message] = []
     @Published public var composeText: String
     @Published public var replyTo: Message?
+    @Published public var searchText = ""
+    @Published public private(set) var searchResults: [Message] = []
+    @Published public private(set) var pinnedMessages: [Message] = []
+    @Published public private(set) var copiedPayload: String?
     @Published public private(set) var isLoading = false
     @Published public private(set) var errorMessage: String?
 
@@ -133,6 +137,7 @@ public final class ChatViewModel: ObservableObject {
 
         do {
             messages = try await bridge.loadHistory(chatId: chat.id)
+            pinnedMessages = try await bridge.pinnedMessages(chatId: chat.id)
             errorMessage = nil
         } catch {
             errorMessage = error.localizedDescription
@@ -159,6 +164,75 @@ public final class ChatViewModel: ObservableObject {
             errorMessage = error.localizedDescription
         }
     }
+
+    public func search() async {
+        do {
+            searchResults = try await bridge.searchMessages(chatId: chat.id, query: searchText)
+            errorMessage = nil
+        } catch {
+            errorMessage = error.localizedDescription
+        }
+    }
+
+    public func beginReply(to message: Message) {
+        replyTo = message
+    }
+
+    public func edit(message: Message, text: String) async {
+        do {
+            let edited = try await bridge.editMessage(chatId: chat.id, messageId: message.id, text: text)
+            replaceMessage(edited)
+            errorMessage = nil
+        } catch {
+            errorMessage = error.localizedDescription
+        }
+    }
+
+    public func delete(message: Message) async {
+        do {
+            try await bridge.deleteMessages(chatId: chat.id, messageIds: [message.id])
+            messages.removeAll { $0.id == message.id }
+            errorMessage = nil
+        } catch {
+            errorMessage = error.localizedDescription
+        }
+    }
+
+    public func forward(message: Message, to chatId: Int64) async {
+        do {
+            try await bridge.forwardMessages(toChatId: chatId, fromChatId: chat.id, messageIds: [message.id])
+            errorMessage = nil
+        } catch {
+            errorMessage = error.localizedDescription
+        }
+    }
+
+    public func react(message: Message, reaction: String) async {
+        do {
+            let reactions = try await bridge.react(chatId: chat.id, messageId: message.id, reaction: reaction)
+            var updated = message
+            updated.reactions = reactions
+            replaceMessage(updated)
+            errorMessage = nil
+        } catch {
+            errorMessage = error.localizedDescription
+        }
+    }
+
+    public func copyPayload(for message: Message) async {
+        do {
+            copiedPayload = try await bridge.copyPayload(chatId: chat.id, messageId: message.id)
+            errorMessage = nil
+        } catch {
+            errorMessage = error.localizedDescription
+        }
+    }
+
+    private func replaceMessage(_ message: Message) {
+        if let index = messages.firstIndex(where: { $0.id == message.id }) {
+            messages[index] = message
+        }
+    }
 }
 
 @MainActor