LocalServerClientConfig.fromJson constructor

LocalServerClientConfig.fromJson(Map<String, dynamic> json)

解析配置json 默认的配置是 { "option": { "key": "test", "open": 1, "priority": 0, "version": "20222022" }, { "key": "test2", "open": 0, "priority": 0, "version": "20222222" } , "assets": { "test": { "compress": "/local-server/test.zip" }, "test2": { "compress": "/local-server/test2.zip" } }, "basics": { "common": { "compress": "/local-server/common.zip", "version": "20220501" } }, "local_server_open": 1 }

Implementation

LocalServerClientConfig.fromJson(Map<String, dynamic> json) {
  // 拿到option，处理优先级和各配置
  List? optionJson = json['option'];
  if (optionJson != null && optionJson.isNotEmpty) {
    for (var value in optionJson) {
      final tmpItem = LocalServerClientConfigItem.parse(value);
      if (tmpItem != null) {
        options.add(tmpItem);
      }
    }
    options.sort((a, b) => (a.priority).compareTo(b.priority));
  }

  Map<String, dynamic> assetJson = json['assets'];
  Map basicMap = json['basics'];
  basicMap.forEach((key, value) {
    basics[key] = value as Map<String, dynamic>;
  });
  // 处理统一资源 Basic ，对比version，不一样的version则需要更新
  LocalServerConfigCache.getBasic().then(
    (value) {
      List<DownloadServiceItem>? oldBasic = List.from(value ?? []);
      // 版本不对，则移除，并需要下载
      if (value?.isNotEmpty ?? false) {
        for (DownloadServiceItem element in value!) {
          var res = basics[element.h5Path];
          if (res != null) {
            if (res['version'] != element.version) {
              oldBasic.removeWhere((e) => element.h5Path == e.h5Path);
            }
          }
        }
      }
      // 触发预下载
      LocalServerDownloadService.instance
          .preloadBasicsData(json['basics'], basics, oldBasic);
    },
  );

  Map<String, DownloadServiceTotalAssetItem> tmpAssets = {};
  for (var e in options) {
    if (assetJson[e.key] != null) {
      tmpAssets[e.key!] = DownloadServiceTotalAssetItem.fromConfigCenter(
          assetJson[e.key], e.key!);
    }
  }
  assets = tmpAssets;
  assets.forEach((key, value) {
    for (var element in value.assets) {
      if (mappingZipAssets.containsKey(element.zipUrl)) {
        mappingZipAssets[element.zipUrl]?.add(element);
      } else {
        mappingZipAssets[element.zipUrl] = [element];
      }
    }
  });

  // 处理 assets 资源，和版本控制
  LocalServerConfigCache.getOptions().then((oldOptions) {
    // assets 缓存和版本处理
    LocalServerConfigCache.getAssets().then((value) {
      var oldAssets = value;
      // 版本不对，则移除，并需要下载
      if (oldOptions != null) {
        for (var e in oldOptions) {
          var res = options.where((element) => element.key == e.key);
          if (res.isNotEmpty && res.first.version != e.version) {
            _log('资源 ${e.key} 需要更新');
            oldAssets?.removeWhere((key, value) => key == e.key);
          }
        }
      }
      // 触发预下载
      LocalServerDownloadService.instance
          .preloadAssetsData(_diffAssets(value, assets));
    });
  });
}