deleteMessages method

Implementation

Future<V2TimCallback> deleteMessages({
  required List<String> msgIDs
}) async {
  if (!TIMManager.instance.isInitSDK()) {
    return V2TimCallback(code: TIMErrCode.ERR_SDK_NOT_INITIALIZED.value, desc: "sdk not init");
  }

  V2TimValueCallback<List<V2TimMessage>> findResult = await findMessages(messageIDList: msgIDs);
  if (findResult.code != TIMErrCode.ERR_SUCC.value) {
    print("deleteMessages, find messages failed");
    return V2TimCallback(code: findResult.code, desc: findResult.desc);
  }

  List<V2TimMessage> msgList = findResult.data!;
  if (msgList.isEmpty) {
    print("deleteMessages, messages not found");
    return V2TimCallback(code: TIMErrCode.ERR_SDK_NOT_INITIALIZED.value, desc: "messages not found");
  }

  V2TimMessage message = msgList[0];
  if ((message.userID == null || message.userID!.isEmpty) && (message.groupID == null || message.groupID!.isEmpty) ) {
    return V2TimCallback(code: TIMErrCode.ERR_INVALID_PARAMETERS.value, desc: 'invalid messages');
  }

  String convID = "";
  TIMConvType timConvType = TIMConvType.kTIMConv_Group;
  if (message.groupID != null && message.groupID!.isNotEmpty) {
    convID = message.groupID!;
  } else {
    convID = message.userID!;
    timConvType = TIMConvType.kTIMConv_C2C;
  }

  String userData = Tools.generateUserData('deleteMessages');
  Completer<V2TimCallback> completer = Completer();
  NativeLibraryManager.timCallback2Future(userData, completer);

  Pointer<Char> pConvID = Tools.string2PointerChar(convID);
  Pointer<Char> pMessageList = Tools.string2PointerChar(json.encode(msgList.map((msg) => msg.toJson()).toList()));
  Pointer<Void> pUserData = Tools.string2PointerVoid(userData);
  NativeLibraryManager.bindings.DartDeleteMessages(pConvID, timConvType, pMessageList, pUserData);

  return completer.future;
}