ios: fix editing w/t change (#2710)

apps/ios/Shared/Views/Chat/ComposeMessage/ComposeView.swift

@@ -665,17 +665,21 @@ struct ComposeView: View {
             if let oldMsgContent = ei.content.msgContent {
                 do {
                     let mc = updateMsgContent(oldMsgContent)
-                    let chatItem = try await apiUpdateChatItem(
-                        type: chat.chatInfo.chatType,
-                        id: chat.chatInfo.apiId,
-                        itemId: ei.id,
-                        msg: mc,
-                        live: live
-                    )
-                    await MainActor.run {
-                        _ = self.chatModel.upsertChatItem(self.chat.chatInfo, chatItem)
+                    if mc != oldMsgContent || (ei.meta.itemLive ?? false) {
+                        let chatItem = try await apiUpdateChatItem(
+                            type: chat.chatInfo.chatType,
+                            id: chat.chatInfo.apiId,
+                            itemId: ei.id,
+                            msg: mc,
+                            live: live
+                        )
+                        await MainActor.run {
+                            _ = self.chatModel.upsertChatItem(self.chat.chatInfo, chatItem)
+                        }
+                        return chatItem
+                    } else {
+                        return nil
                     }
-                    return chatItem
                 } catch {
                     logger.error("ChatView.sendMessage error: \(error.localizedDescription)")
                     AlertManager.shared.showAlertMsg(title: "Error updating message", message: "Error: \(responseError(error))")

apps/ios/SimpleXChat/ChatTypes.swift

@@ -2724,7 +2724,7 @@ public enum CIFileStatus: Decodable, Equatable {
     }
 }
 
-public enum MsgContent {
+public enum MsgContent: Equatable {
     case text(String)
     case link(text: String, preview: LinkPreview)
     case image(text: String, image: String)
@@ -2785,6 +2785,19 @@ public enum MsgContent {
         case image
         case duration
     }
+
+    public static func == (lhs: MsgContent, rhs: MsgContent) -> Bool {
+        switch (lhs, rhs) {
+        case let (.text(lt), .text(rt)): return lt == rt
+        case let (.link(lt, lp), .link(rt, rp)): return lt == rt && lp == rp
+        case let (.image(lt, li), .image(rt, ri)): return lt == rt && li == ri
+        case let (.video(lt, li, ld), .video(rt, ri, rd)): return lt == rt && li == ri && ld == rd
+        case let (.voice(lt, ld), .voice(rt, rd)): return lt == rt && ld == rd
+        case let (.file(lf), .file(rf)): return lf == rf
+        case let (.unknown(lType, lt), .unknown(rType, rt)): return lType == rType && lt == rt
+        default: return false
+        }
+    }
 }
 
 extension MsgContent: Decodable {