106 lines
3.2 KiB
Dart
106 lines
3.2 KiB
Dart
import 'dart:convert';
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import 'package:flutter/foundation.dart';
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import 'package:yumi/shared/data_sources/sources/local/data_persistence.dart';
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class LastWeeklyCPSplashEntry {
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const LastWeeklyCPSplashEntry({
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required this.rank,
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required this.leftAvatarUrl,
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required this.rightAvatarUrl,
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required this.leftNickname,
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required this.rightNickname,
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});
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final int rank;
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final String leftAvatarUrl;
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final String rightAvatarUrl;
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final String leftNickname;
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final String rightNickname;
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factory LastWeeklyCPSplashEntry.fromJson(Map<String, dynamic> json) {
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return LastWeeklyCPSplashEntry(
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rank: (json['rank'] as num?)?.toInt() ?? 0,
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leftAvatarUrl: (json['leftAvatarUrl'] as String?) ?? '',
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rightAvatarUrl: (json['rightAvatarUrl'] as String?) ?? '',
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leftNickname: (json['leftNickname'] as String?) ?? '',
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rightNickname: (json['rightNickname'] as String?) ?? '',
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);
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}
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Map<String, dynamic> toJson() {
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return {
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'rank': rank,
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'leftAvatarUrl': leftAvatarUrl,
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'rightAvatarUrl': rightAvatarUrl,
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'leftNickname': leftNickname,
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'rightNickname': rightNickname,
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};
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}
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}
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class LastWeeklyCPSplashCache {
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static const String _cacheKey = 'last_weekly_cp_splash_cache_v1';
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/// 搜索 `api-ready-launch-splash` 可以快速找到后续要恢复接入的位置。
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///
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/// 当前 CP 榜接口还没 ready，因此先彻底关闭这套自定义启动页。
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/// 正式恢复时保持“本地有缓存才展示、无缓存不展示”的逻辑，不要再写占位缓存。
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static const bool _allowCacheDrivenSplash = false;
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static bool get shouldShow {
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if (!_allowCacheDrivenSplash) {
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return false;
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}
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return loadCachedEntries().isNotEmpty;
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}
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static List<LastWeeklyCPSplashEntry> loadDisplayEntries() {
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if (!_allowCacheDrivenSplash) {
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return const [];
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}
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return loadCachedEntries();
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}
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static List<LastWeeklyCPSplashEntry> loadCachedEntries() {
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final raw = DataPersistence.getString(_cacheKey);
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if (raw.isEmpty) {
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return const [];
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}
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try {
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final decoded = jsonDecode(raw);
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if (decoded is! List) {
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return const [];
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}
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return decoded
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.whereType<Map>()
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.map(
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(item) => LastWeeklyCPSplashEntry.fromJson(
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Map<String, dynamic>.from(item),
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),
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)
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.toList()
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..sort((a, b) => a.rank.compareTo(b.rank));
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} catch (error, stackTrace) {
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debugPrint('LastWeeklyCPSplashCache parse failed: $error\n$stackTrace');
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return const [];
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}
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}
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static Future<void> refreshCacheInBackground() async {
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// TODO(api-ready-launch-splash): CP 榜接口 ready 后，把 `_allowCacheDrivenSplash`
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// 改为 true，并在这里补上“接口取数 -> 映射 LastWeeklyCPSplashEntry ->
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// 写入 `_cacheKey`”的流程。保留“有缓存才展示、无缓存不展示”的正式逻辑。
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if (!_allowCacheDrivenSplash) {
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return;
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}
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try {
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// 当前占位逻辑已下线，等待正式 CP 榜接口接入。
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} catch (error, stackTrace) {
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debugPrint('LastWeeklyCPSplashCache refresh failed: $error\n$stackTrace');
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}
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}
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}
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