refactor: 抽取高危功能页共享脚手架与传输层日志
诊断:功能票 / 解锁歌曲 / 收藏品 / 旅行伙伴 / 数值修改 / 一键跑图 / 万花筒 / 高危 hub 这些页面各自抄了一份同样的脚手架——冷却计时器、_Step 枚举、自动退登开关、卡片/提示/进度卡;TitleApiService.getUserPreview 还 重复实现了整套传输层;服务层有 37 处裸 print 会把 token / JSESSIONID 打进日志。 - 新增共享原语,7 个功能页切换到: * widgets/cooldown_mixin.dart CooldownMixin(登录后冷却倒计时) * widgets/step_progress.dart RiskStep + StepProgressCard * widgets/app_card.dart AppCard / SectionTitle / AutoLogoutToggle * widgets/app_notice.dart AppNotice + context.showSnack - TitleApiService: getUserPreview 收敛进通用 _callApi;新增 fromHolder() 工厂与 config getter,消除散落的 isConfigured + config! - 传输层 print -> ApiLog(仅 debug 输出),删除全部 avoid_print 忽略 - UserAllPayloadBuilder 新增 placeholderMusicData()(原 5 处重复) - LoginPage 从 main.dart 抽到 pages/login_page.dart,入口只留 main + MyApp - 更新 README / CLAUDE.md 目录结构与已过时的 web/依赖说明 验证:flutter analyze 0 issue(含 info);flutter test 96/96 通过。 纯结构重构,行为保持不变;仅有意统一了功能票 / 音乐风险 / hub 的 卡片与步骤视觉样式。 净删除约 2176 行重复代码。
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import 'dart:async';
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import 'package:flutter/widgets.dart';
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import '../config/strings.dart';
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/// 功能页共用的「登录后冷却」计时。
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///
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/// 六个功能页(功能票 / 数值修改 / 旅行伙伴 / 一键跑图 / 万花筒 / 解锁)原本
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/// 各自抄了一份 `Timer.periodic` + `_computeRemaining`,这里收口成一个 mixin。
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///
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/// 用法:
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/// ```dart
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/// class _FooState extends State<Foo> with CooldownMixin<Foo> {
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/// @override
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/// int? get cooldownLoginDateTime => widget.loginDateTime;
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/// }
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/// ```
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/// 页面**不要**再自己覆写 `initState` / `didUpdateWidget` / `dispose` 里与冷却
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/// 相关的逻辑;如需覆写,记得调用 `super`。
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mixin CooldownMixin<T extends StatefulWidget> on State<T> {
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Timer? _cooldownTimer;
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int _cooldownRemaining = 0;
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int? _appliedLoginDateTime;
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/// 当前会话的 `UserLoginApi` 时间戳;`null` 表示没有有效登录态。
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int? get cooldownLoginDateTime;
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bool get isLoggedIn => cooldownLoginDateTime != null;
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int get cooldownRemaining => _cooldownRemaining;
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@override
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void initState() {
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super.initState();
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_applyCooldown();
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}
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@override
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void didUpdateWidget(covariant T oldWidget) {
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super.didUpdateWidget(oldWidget);
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if (cooldownLoginDateTime != _appliedLoginDateTime) {
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_applyCooldown();
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}
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}
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@override
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void dispose() {
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_cooldownTimer?.cancel();
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_cooldownTimer = null;
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super.dispose();
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}
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void _applyCooldown() {
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_cooldownTimer?.cancel();
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_cooldownTimer = null;
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_appliedLoginDateTime = cooldownLoginDateTime;
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final loginDateTime = _appliedLoginDateTime;
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if (loginDateTime == null) {
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_setRemaining(0);
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return;
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}
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_setRemaining(_computeRemaining(loginDateTime));
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if (_cooldownRemaining <= 0) return;
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_cooldownTimer = Timer.periodic(const Duration(seconds: 1), (_) {
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if (!mounted) return;
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_setRemaining(_computeRemaining(loginDateTime));
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if (_cooldownRemaining <= 0) {
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_cooldownTimer?.cancel();
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_cooldownTimer = null;
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}
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});
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}
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void _setRemaining(int value) {
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if (!mounted) {
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_cooldownRemaining = value;
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return;
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}
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setState(() => _cooldownRemaining = value);
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}
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int _computeRemaining(int loginDateTime) {
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final nowSec = DateTime.now().millisecondsSinceEpoch ~/ 1000;
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final remaining =
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AppStrings.ticketCooldownSeconds - (nowSec - loginDateTime);
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return remaining < 0 ? 0 : remaining;
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}
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}
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