54 lines
1.7 KiB
Dart
54 lines
1.7 KiB
Dart
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import 'package:get/get.dart';
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import 'package:loopin/IM/im_message.dart';
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import 'package:loopin/IM/im_service.dart';
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import 'package:loopin/utils/index.dart';
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import 'package:tencent_cloud_chat_sdk/models/v2_tim_message.dart';
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class ChatDetailController extends GetxController {
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final String userID;
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ChatDetailController({required this.userID});
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final RxList<V2TimMessage> chatList = <V2TimMessage>[].obs;
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void updateChatListWithTimeLabels(List<V2TimMessage> originMessages) async {
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final idRes = await ImService.instance.selfUserId();
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if (idRes.success) {
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final selfUserId = idRes.data;
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List<V2TimMessage> displayMessages = [];
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for (int i = 0; i < originMessages.length; i++) {
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final current = originMessages[i];
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final currentTimestamp = current.timestamp ?? 0;
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// 判断是否需要给当前这条消息加时间标签
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bool needInsertLabel = false;
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if (i == originMessages.length - 1) {
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// 最后一条消息，加时间标签
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needInsertLabel = true;
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} else {
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final next = originMessages[i + 1];
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final nextTimestamp = next.timestamp ?? 0;
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final diff = currentTimestamp - nextTimestamp;
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if (diff > 180) {
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needInsertLabel = true;
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}
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}
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// 把当前消息先插入后插入标签
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displayMessages.add(current);
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if (needInsertLabel) {
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final labelTime = Utils().formatChatTime(currentTimestamp);
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final timeLabel = await IMMessage().insertTimeLabel(labelTime, selfUserId);
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displayMessages.add(timeLabel.data);
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}
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}
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chatList.addAll(displayMessages);
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}
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}
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}
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