浅念
341 lines
11 KiB
Dart
341 lines
11 KiB
Dart
/// 服务端上传历史页（P3 计划 Task 6，A19 语义）。
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///
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/// GET /uploads（operationId listUploads）游标分页展示**当前账号跨设备**
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/// 的上传会话记录：会话状态 / photo.processingState / sourceDeviceId /
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/// 创建时间。顶部横幅明确标注「本机待传队列不在此列」——本机队列是
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/// drift 任务库（TaskStore），两者数据源与生命周期不同（A19 标注要求）。
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///
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/// 记录不含 filename（契约 UploadSessionRecord 无该字段），行首展示
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/// clientTaskId 前 8 位作识别；sourceDeviceId 与本机 [DeviceId] 一致时
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/// 标记「本设备」。
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library;
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import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../core/api_client.dart';
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import '../core/app_exception.dart';
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import '../core/device_id.dart';
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import '../core/error_codes.dart';
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import '../core/error_l10n.dart';
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import '../features/photos/models.dart';
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import '../features/uploads/models.dart';
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import '../l10n/app_localizations.dart';
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/// 服务端上传历史（从队列页占位入口进入）。
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class ServerHistoryPage extends ConsumerStatefulWidget {
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const ServerHistoryPage({super.key});
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@override
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ConsumerState<ServerHistoryPage> createState() => _ServerHistoryPageState();
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}
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class _ServerHistoryPageState extends ConsumerState<ServerHistoryPage> {
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static const int _pageSize = 20;
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List<UploadSessionRecord> _items = const <UploadSessionRecord>[];
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String? _nextCursor;
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bool _hasMore = false;
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bool _loading = true;
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bool _loadingMore = false;
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String? _errorCode;
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/// 本机设备标识（「本设备」标记比对，A19）。
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String? _ownDeviceId;
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@override
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void initState() {
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super.initState();
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_reload();
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unawaited(
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ref.read(deviceIdProvider).value().then((id) {
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if (mounted) setState(() => _ownDeviceId = id);
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}),
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);
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}
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Future<void> _reload() async {
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setState(() {
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_loading = true;
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_errorCode = null;
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});
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try {
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final page = await ref
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.read(apiClientProvider)
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.listUploads(limit: _pageSize);
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if (mounted) {
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setState(() {
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_items = page.items;
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_nextCursor = page.nextCursor;
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_hasMore = page.hasMore;
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_loading = false;
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});
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}
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} on AppException catch (e) {
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if (mounted) {
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setState(() {
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_errorCode = e.code;
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_loading = false;
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});
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}
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} on Object {
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if (mounted) {
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setState(() {
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_errorCode = ErrorCodes.internalError;
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_loading = false;
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});
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}
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}
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}
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Future<void> _loadMore() async {
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if (_loading || _loadingMore || !_hasMore) return;
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setState(() => _loadingMore = true);
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try {
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final page = await ref.read(apiClientProvider).listUploads(
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cursor: _nextCursor,
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limit: _pageSize,
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);
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if (mounted) {
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setState(() {
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_items = <UploadSessionRecord>[..._items, ...page.items];
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_nextCursor = page.nextCursor;
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_hasMore = page.hasMore;
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_loadingMore = false;
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});
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}
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} on AppException {
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if (mounted) {
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setState(() => _loadingMore = false);
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(
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AppLocalizations.of(context)
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.messageForErrorCode(ErrorCodes.networkError),
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),
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),
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);
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}
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} on Object {
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if (mounted) {
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setState(() => _loadingMore = false);
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(AppLocalizations.of(context).errorGeneric),
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),
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);
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}
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}
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}
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@override
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Widget build(BuildContext context) {
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final l10n = AppLocalizations.of(context);
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final theme = Theme.of(context);
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return Scaffold(
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appBar: AppBar(title: Text(l10n.serverHistoryTitle)),
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body: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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// A19 标注横幅：与「队列」页（本机任务库）的数据源区分。
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Card(
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margin: const EdgeInsets.fromLTRB(12, 12, 12, 0),
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child: Padding(
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padding: const EdgeInsets.all(12),
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child: Row(
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children: [
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Icon(
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Icons.devices_outlined,
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size: 18,
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color: theme.colorScheme.onSurfaceVariant,
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),
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const SizedBox(width: 8),
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Expanded(
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child: Text(
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l10n.serverHistoryBanner,
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style: theme.textTheme.bodySmall?.copyWith(
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color: theme.colorScheme.onSurfaceVariant,
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),
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),
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),
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],
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),
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),
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),
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Expanded(
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child: _loading
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? const Center(child: CircularProgressIndicator())
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: _items.isEmpty && _errorCode != null
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? Center(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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const Icon(Icons.cloud_off, size: 48),
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const SizedBox(height: 12),
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Text(l10n.messageForErrorCode(_errorCode!)),
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const SizedBox(height: 12),
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FilledButton.icon(
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onPressed: _reload,
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icon: const Icon(Icons.refresh),
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label: Text(l10n.retry),
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),
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],
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),
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)
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: ListView.builder(
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itemCount: _items.length +
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(_items.isEmpty || _hasMore || _loadingMore ? 1 : 0),
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itemBuilder: (context, index) {
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if (_items.isEmpty) {
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return Padding(
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padding: const EdgeInsets.all(32),
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child: Text(
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l10n.serverHistoryEmpty,
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textAlign: TextAlign.center,
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style: theme.textTheme.bodySmall,
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),
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);
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}
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if (index >= _items.length) {
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return const Padding(
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padding: EdgeInsets.symmetric(vertical: 16),
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child: Center(
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child: SizedBox(
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height: 24,
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width: 24,
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child: CircularProgressIndicator(
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strokeWidth: 2,
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),
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),
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),
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);
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}
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if (index >= _items.length - 3 &&
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_hasMore &&
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!_loadingMore) {
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WidgetsBinding.instance.addPostFrameCallback(
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(_) => _loadMore(),
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);
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}
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return _sessionTile(l10n, theme, _items[index]);
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},
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),
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),
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],
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),
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);
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}
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Widget _sessionTile(
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AppLocalizations l10n,
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ThemeData theme,
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UploadSessionRecord record,
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) {
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// createdAt 以本机时区展示（记录跨相册，无单一相册时区可依）。
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final local = record.createdAt.toLocal();
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final time = '${local.year}/${local.month}/${local.day} '
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'${local.hour.toString().padLeft(2, '0')}:'
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'${local.minute.toString().padLeft(2, '0')}';
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final deviceShort = record.sourceDeviceId?.substring(0, 8);
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final ownDevice =
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_ownDeviceId != null && record.sourceDeviceId == _ownDeviceId;
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return ListTile(
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leading: const Icon(Icons.cloud_done_outlined),
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title: Text(
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'${record.clientTaskId.substring(0, 8)} · '
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'${(record.expectedBytes / 1024).round()} KB',
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style: theme.textTheme.bodyMedium?.copyWith(
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fontFeatures: const [FontFeature.tabularFigures()],
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),
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),
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subtitle: Text(
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deviceShort == null
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? time
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: '$time · $deviceShort${ownDevice ? '（${l10n.thisDevice}）' : ''}',
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),
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trailing: Wrap(
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spacing: 6,
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runSpacing: 4,
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crossAxisAlignment: WrapCrossAlignment.center,
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children: [
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_HistoryTag(
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label: _sessionStateLabel(l10n, record.state),
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highlight: record.state == UploadSessionState.confirmed,
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),
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_HistoryTag(
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label: _processingLabel(l10n, record.photo.processingState),
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highlight: record.photo.processingState ==
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PhotoProcessingState.ready,
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),
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],
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),
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);
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}
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static String _sessionStateLabel(
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AppLocalizations l10n,
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UploadSessionState state,
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) {
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switch (state) {
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case UploadSessionState.pending:
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return l10n.uploadStatePending;
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case UploadSessionState.confirmed:
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return l10n.uploadStateConfirmed;
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case UploadSessionState.cancelled:
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return l10n.uploadStateCancelled;
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case UploadSessionState.expired:
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return l10n.uploadStateExpired;
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}
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}
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static String _processingLabel(
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AppLocalizations l10n,
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PhotoProcessingState s,
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) {
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switch (s) {
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case PhotoProcessingState.pendingUpload:
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return l10n.procPendingUpload;
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case PhotoProcessingState.uploaded:
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return l10n.procUploaded;
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case PhotoProcessingState.processing:
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return l10n.procProcessing;
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case PhotoProcessingState.ready:
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return l10n.procReady;
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case PhotoProcessingState.processingFailed:
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return l10n.procProcessingFailed;
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}
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}
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}
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/// 会话记录标签（会话状态/处理状态）。
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class _HistoryTag extends StatelessWidget {
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const _HistoryTag({required this.label, required this.highlight});
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final String label;
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final bool highlight;
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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return Container(
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padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 2),
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decoration: BoxDecoration(
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color: highlight
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? theme.colorScheme.secondaryContainer
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: theme.colorScheme.surfaceContainerHighest,
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borderRadius: BorderRadius.circular(999),
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),
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child: Text(
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label,
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style: theme.textTheme.labelSmall?.copyWith(
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color: highlight
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? theme.colorScheme.onSecondaryContainer
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: theme.colorScheme.onSurfaceVariant,
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),
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),
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);
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}
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}
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