279 lines
8.9 KiB
Dart
279 lines
8.9 KiB
Dart
import 'dart:convert';
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import 'dart:math';
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import 'package:dio/dio.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import '../models/marquee_message.dart';
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import '../models/store_info.dart';
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import 'api_client.dart';
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import 'marquee_web_source.dart';
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import 'org_service.dart';
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/// 滚动字幕管理服务。
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///
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/// 列表/新增/编辑/删除均优先对接 Web 后台 `/theme/scrollingText/*` 接口，
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/// 同时保留本地 `SharedPreferences` 缓存作为离线兜底。
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class MarqueeService {
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MarqueeService({
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Dio? dio,
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OrgService? orgService,
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MarqueeWebSource? webSource,
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}) : _dio = dio ?? ApiClient.instance.dio,
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_orgService = orgService ?? OrgService(),
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_webSource = webSource ?? MarqueeWebSource(dio: ApiClient.instance.dio);
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final Dio _dio;
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final OrgService _orgService;
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final MarqueeWebSource _webSource;
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static const _storageKey = 'cloudhome_ops_marquee_messages';
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Future<SharedPreferences> get _prefs => SharedPreferences.getInstance();
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/// 获取滚动字幕列表。
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///
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/// 优先从 Web 端 `/theme/scrollingText/list` 获取；若失败则回退本地缓存。
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Future<List<MarqueeMessage>> getMarqueeList({
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String? storeId,
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String? keyword,
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String method = 'GET',
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String path = MarqueeWebSource.defaultPath,
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Map<String, dynamic>? queryParameters,
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Map<String, dynamic>? body,
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}) async {
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final webResult = await _webSource.fetchMarquees(
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method: method,
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path: path,
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queryParameters: queryParameters,
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body: body,
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storeId: storeId,
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keyword: keyword,
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);
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if (webResult.isSuccess) {
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await _saveAll(webResult.data);
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return _applyFiltersAndSort(webResult.data, storeId: storeId, keyword: keyword);
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}
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final localList = await _loadAll();
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return _applyFiltersAndSort(localList, storeId: storeId, keyword: keyword);
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}
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List<MarqueeMessage> _applyFiltersAndSort(
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List<MarqueeMessage> list, {
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String? storeId,
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String? keyword,
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}) {
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var result = list;
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if (storeId != null && storeId.isNotEmpty) {
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result = result.where((m) => m.storeId == storeId).toList();
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}
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if (keyword != null && keyword.isNotEmpty) {
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final lower = keyword.toLowerCase();
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result = result.where((m) {
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return m.content.toLowerCase().contains(lower) ||
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m.storeName.toLowerCase().contains(lower);
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}).toList();
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}
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result.sort((a, b) {
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// 启用的排在前面，其次按更新时间倒序。
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final statusCompare = b.status.compareTo(a.status);
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if (statusCompare != 0) return statusCompare;
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final bTime = b.updateTime;
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final aTime = a.updateTime;
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if (bTime == null || aTime == null) return 0;
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return bTime.compareTo(aTime);
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});
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return result;
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}
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/// 新增或修改滚动字幕。
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///
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/// 编辑（data 含 id）调用 `/theme/scrollingText/update`，
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/// 新增调用 `/theme/scrollingText/save`。
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/// 成功后刷新本地缓存。
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Future<void> saveMarquee(Map<String, dynamic> data) async {
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final id = data['id']?.toString();
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final payload = _buildWebPayload(data);
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try {
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if (id != null && id.isNotEmpty) {
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await _dio.post<dynamic>('/theme/scrollingText/update', data: payload);
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} else {
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await _dio.post<dynamic>('/theme/scrollingText/save', data: payload);
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}
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} on DioException {
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// 写操作失败时仅更新本地缓存，保证移动端仍可展示。
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}
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final list = await _loadAll();
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final now = DateTime.now();
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final message = MarqueeMessage(
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id: id ?? _generateId(),
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storeId: data['storeId']?.toString() ?? '',
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storeName: data['storeName']?.toString() ?? '',
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content: data['content']?.toString() ?? '',
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status: data['status'] is int ? data['status'] as int : 0,
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speed: int.tryParse(data['speed']?.toString() ?? '50') ?? 50,
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fontColor: data['fontColor']?.toString(),
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backgroundColor: data['backgroundColor']?.toString(),
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fontSize: int.tryParse(data['fontSize']?.toString() ?? ''),
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level: int.tryParse(data['level']?.toString() ?? ''),
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startTime: _tryParseDateTime(data['startTime']),
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endTime: _tryParseDateTime(data['endTime']),
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createTime: now,
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updateTime: now,
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);
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final index = list.indexWhere((m) => m.id == message.id);
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if (index >= 0) {
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list[index] = message;
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} else {
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list.add(message);
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}
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await _saveAll(list);
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}
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/// 删除滚动字幕。
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///
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/// 优先调用 Web 端 `/theme/scrollingText/delete`，失败也移除本地缓存。
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Future<void> deleteMarquee(String id) async {
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final numericId = int.tryParse(id);
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if (numericId != null) {
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try {
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await _dio.post<dynamic>(
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'/theme/scrollingText/delete',
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data: {'ids': [numericId]},
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);
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} on DioException {
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// 网络失败时继续移除本地记录。
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}
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}
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final list = await _loadAll();
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list.removeWhere((m) => m.id == id);
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await _saveAll(list);
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}
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/// 启用/禁用单条滚动字幕。
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///
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/// 直接调用 Web 端 `/theme/scrollingText/update` 修改 status。
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Future<void> setMarqueeStatus(String id, {required int status}) async {
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final list = await _loadAll();
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final index = list.indexWhere((m) => m.id == id);
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if (index < 0) return;
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final item = list[index];
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final numericId = int.tryParse(id);
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if (numericId != null) {
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try {
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await _dio.post<dynamic>(
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'/theme/scrollingText/update',
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data: item.copyWith(status: status).toWebJson(),
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);
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} on DioException {
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// 接口失败时仅更新本地状态。
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}
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}
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list[index] = item.copyWith(
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status: status,
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updateTime: DateTime.now(),
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);
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await _saveAll(list);
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}
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/// 获取当前用户可见的门店列表（用于新增/编辑时选择目标门店）。
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Future<List<StoreInfo>> getStores() async {
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return _orgService.getMyStores();
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}
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/// 构造 Web 后台可接收的请求体。
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Map<String, dynamic> _buildWebPayload(Map<String, dynamic> data) {
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final storeId = data['storeId']?.toString() ?? '';
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final storeName = data['storeName']?.toString() ?? '';
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final content = data['content']?.toString() ?? '';
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final speed = int.tryParse(data['speed']?.toString() ?? '50') ?? 50;
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final fontSize = int.tryParse(data['fontSize']?.toString() ?? '');
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final level = int.tryParse(data['level']?.toString() ?? '');
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final status = data['status'] is int ? data['status'] as int : 0;
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final fontColor = data['fontColor']?.toString();
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final backgroundColor = data['backgroundColor']?.toString();
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final startTime = _tryParseDateTime(data['startTime']);
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final endTime = _tryParseDateTime(data['endTime']);
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final payload = <String, dynamic>{
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'orgId': int.tryParse(storeId) ?? storeId,
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'orgName': storeName,
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'content': content,
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'scrollSpeed': speed,
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'status': status,
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if (fontSize != null) 'fontSize': fontSize,
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if (level != null) 'level': level,
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if (fontColor != null && fontColor.isNotEmpty) 'fontColor': fontColor,
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if (backgroundColor != null && backgroundColor.isNotEmpty)
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'bgColor': backgroundColor,
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if (startTime != null)
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'startTime': _formatTime(startTime),
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if (endTime != null)
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'endTime': _formatTime(endTime),
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};
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final id = data['id']?.toString();
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if (id != null && id.isNotEmpty) {
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payload['id'] = int.tryParse(id) ?? id;
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}
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return payload;
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}
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Future<List<MarqueeMessage>> _loadAll() async {
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final prefs = await _prefs;
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final raw = prefs.getString(_storageKey);
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if (raw == null || raw.isEmpty) return <MarqueeMessage>[];
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try {
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final list = jsonDecode(raw) as List<dynamic>;
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return list
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.whereType<Map<String, dynamic>>()
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.map(MarqueeMessage.fromJson)
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.toList();
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} catch (_) {
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return <MarqueeMessage>[];
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}
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}
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Future<void> _saveAll(List<MarqueeMessage> list) async {
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final prefs = await _prefs;
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final raw = jsonEncode(list.map((m) => m.toJson()).toList());
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await prefs.setString(_storageKey, raw);
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}
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String _generateId() {
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final now = DateTime.now().millisecondsSinceEpoch;
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final rand = Random().nextInt(10000).toString().padLeft(4, '0');
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return '${now}_$rand';
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}
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DateTime? _tryParseDateTime(dynamic value) {
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if (value == null) return null;
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if (value is DateTime) return value;
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final text = value.toString().trim();
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if (text.isEmpty) return null;
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// 兼容 Web 端纯时间字符串 `HH:mm:ss`。
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if (RegExp(r'^\d{2}:\d{2}:\d{2}$').hasMatch(text)) {
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return DateTime.tryParse('2000-01-01 $text');
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}
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return DateTime.tryParse(text) ??
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DateTime.tryParse(text.replaceFirst(' ', 'T'));
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}
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String _formatTime(DateTime value) {
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return '${value.hour.toString().padLeft(2, '0')}:'
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'${value.minute.toString().padLeft(2, '0')}:'
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'${value.second.toString().padLeft(2, '0')}';
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}
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}
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