2026-09-19 04:47:31 +08:00
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/// 选图注入点 + 批量入队动作(P3 计划 Task 9)。
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///
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2026-09-28 14:43:59 +08:00
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/// 选图的平台调用经 Provider 注入([singleImagePickerProvider]=image_picker
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/// 单图;[multiImagePickerProvider]=wechat_assets_picker 应用内多选),
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/// widget 测试 override 为替身——不经平台通道即可驱动入队流;
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/// [enqueueForUpload] 为连拍页与相册详情 FAB 的共用入队路径:首次动作
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/// 触发 POST_NOTIFICATIONS 请求(静默降级)+ 批量经准备器入队(准备器
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/// 内部有界并行复制,默认并发 3,防连拍 IO 风暴)。
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2026-09-28 11:06:40 +08:00
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///
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/// P0-1 层 1(UI06 分析 v2):入队前**本地查重**——同账号 + 同相册 +
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/// state=uploaded + filename+bytes 匹配 → 返回 [DuplicateCheck],由
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/// 调用方决定弹窗确认或跳过。批量场景汇总后单次弹窗(非逐张)。
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2026-09-28 17:06:19 +08:00
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///
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/// Task 8(服务端查重 App 侧集成):弹窗「全部上传」= 用户确认强传——
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/// 重复项以 force=true 入队([enqueueForUpload] 的 forcePaths),任务行
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/// 落库后由引擎在 initUpload 携带 force 跳过服务端查重(仅 owner/admin
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/// 生效,服务端裁决——协作者强传仍会被 409 拒绝并可见失败文案)。
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2026-09-19 04:47:31 +08:00
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library;
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2026-09-28 11:06:40 +08:00
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import 'dart:io';
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2026-09-28 14:43:59 +08:00
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import 'package:flutter/widgets.dart' show BuildContext, Localizations;
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2026-09-19 04:47:31 +08:00
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:image_picker/image_picker.dart';
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2026-09-28 11:06:40 +08:00
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import 'package:path/path.dart' as p;
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2026-09-28 14:43:59 +08:00
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import 'package:wechat_assets_picker/wechat_assets_picker.dart';
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2026-09-19 04:47:31 +08:00
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import '../../core/notification_permission.dart';
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import 'providers.dart';
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import 'task_state.dart';
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/// 单图选择(准备失败重试的重新选图路径);返回源文件路径或 null(取消)。
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typedef SingleImagePicker = Future<String?> Function();
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/// 多图选择(相册多选入队);返回源文件路径列表(空=取消)。
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2026-09-28 14:43:59 +08:00
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typedef MultiImagePicker = Future<List<String>> Function(BuildContext context);
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2026-09-19 04:47:31 +08:00
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/// 单图选择 Provider(生产=image_picker;测试 override)。
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final singleImagePickerProvider = Provider<SingleImagePicker>(
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(ref) => () async {
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final file = await ImagePicker().pickImage(source: ImageSource.gallery);
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return file?.path;
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},
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);
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2026-09-28 14:43:59 +08:00
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/// 多图选择 Provider(生产=wechat_assets_picker;测试 override)。
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///
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/// - 应用内选择器:长按进入多选 + 拖动连选 + 全选;无系统 Photo Picker
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/// 的 100 张硬上限(软上限 9999 防极端内存,photo_manager 网格分页
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/// 加载,实际不受限);
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/// - originFile 取原始文件路径:API 30+ 直接返回原路径;Android 10 非
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/// legacy 经 ScopedCache 复制到应用缓存(较慢、占缓存空间)。路径
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/// 解析并行发起(批量数百张时避免串行平台通道往返阻塞入队启动;
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/// 平台通道调用在平台线程自然串行化,无 IO 风暴);
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/// - 单个资产解析失败(选择后被删/云下架等 PlatformException)仅跳过
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/// 该张(null 过滤),不丢弃整批;入队数由调用方 SnackBar 反映实际
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/// 张数;
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/// - 权限由 picker 内部请求;永久拒绝时 picker 自带 denied/limited 视图
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/// (非「返回空」);返回 null 仅发生在用户取消。
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final multiImagePickerProvider = Provider<MultiImagePicker>(
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2026-09-28 14:43:59 +08:00
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(ref) => (context) async {
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final locale = Localizations.maybeLocaleOf(context);
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final assets = await AssetPicker.pickAssets(
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context,
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pickerConfig: AssetPickerConfig(
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requestType: RequestType.image,
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maxAssets: kPickerSoftMaxAssets,
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textDelegate: assetPickerTextDelegateFromLocale(locale),
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),
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);
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if (assets == null) return const <String>[];
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final files = await Future.wait(
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assets.map((a) => a.originFile.then((f) => f, onError: (_) => null)),
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);
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return [
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for (final file in files)
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if (file != null) file.path,
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];
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2026-09-19 04:47:31 +08:00
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},
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);
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2026-09-28 14:43:59 +08:00
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/// 选图软上限(用户要求不设硬限制;9999 为防误触极端值)。
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const int kPickerSoftMaxAssets = 9999;
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2026-09-28 17:06:19 +08:00
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/// 查重弹窗选择结果(Task 8):null=取消(不上传)。
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///
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/// 「跳过重复」→ skipPaths=重复项(仅非重复入队);「全部上传」→
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/// forcePaths=重复项(强传,见库级注释)。两个集合互斥且可为空。
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typedef DuplicateDialogChoice
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= ({Set<String> skipPaths, Set<String> forcePaths});
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2026-09-28 11:06:40 +08:00
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/// 查重结果(单张):匹配到的已上传任务摘要。
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class DuplicateMatch {
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const DuplicateMatch({
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required this.filename,
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required this.bytes,
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required this.uploadedAt,
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});
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final String filename;
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final int bytes;
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final DateTime uploadedAt;
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}
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/// 入队结果(P0-1:含查重信息)。
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class EnqueueResult {
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const EnqueueResult({
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required this.enqueued,
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required this.duplicates,
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this.skipped = 0,
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});
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/// 成功入队张数(state=queued)。
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final int enqueued;
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/// 与历史已上传任务匹配的项(需用户确认)。
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final List<DuplicateMatch> duplicates;
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/// 用户选择跳过的重复项张数。
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final int skipped;
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}
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/// 入队前查重:查 TaskStore 同账号 + 同相册 + state=uploaded,
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/// filename + bytes 匹配的记录。
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///
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/// 返回 null = 无重复(可直接入队);非 null = 有疑似重复(调用方弹窗)。
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Future<List<DuplicateMatch>?> checkDuplicates(
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WidgetRef ref, {
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required String accountId,
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required String albumId,
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required List<String> sourcePaths,
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}) async {
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if (sourcePaths.isEmpty) return null;
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// 收集本次选择的 filename + bytes。
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final picks = <({String filename, int bytes})>[];
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for (final path in sourcePaths) {
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try {
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final file = File(path);
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picks.add((filename: p.basename(path), bytes: await file.length()));
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} on Object {
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// 读不到的文件不参与查重(入队时准备器会报错)。
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}
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}
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if (picks.isEmpty) return null;
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// 查同相册已完成的任务。
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final store = ref.read(taskStoreProvider);
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final completed = await store.listByAccount(
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accountId,
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albumId: albumId,
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states: {UploadTaskState.completed},
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);
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// 匹配 filename + bytes。
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final matches = <DuplicateMatch>[];
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for (final task in completed) {
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for (final pick in picks) {
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if (task.filename == pick.filename && task.bytes == pick.bytes) {
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matches.add(
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DuplicateMatch(
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filename: pick.filename,
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bytes: pick.bytes,
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uploadedAt: task.createdAt,
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),
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);
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break; // 一对一即可(同一历史任务不重复匹配多张同内容照片)。
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}
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}
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}
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return matches.isEmpty ? null : matches;
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}
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2026-09-19 04:47:31 +08:00
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/// 批量入队:通知权限单次请求 + 逐张准备入队。
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///
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2026-09-28 17:06:19 +08:00
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/// [skipPaths]:用户选择跳过的重复项;[forcePaths]:查重弹窗「全部上传」
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/// 确认强传的重复项(Task 8——落到任务行 force 标记,引擎 initUpload
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/// 携带;仅 owner/admin 生效,服务端裁决)。两者互斥。
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///
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2026-09-28 11:06:40 +08:00
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/// 返回 [EnqueueResult](含 enqueued 计数与 duplicates 列表)。
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/// 准备失败的任务已落库为 preparationFailed(连拍页失败徽章/队列页可见,
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/// 不在此抛出)。
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Future<EnqueueResult> enqueueForUpload(
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2026-09-19 04:47:31 +08:00
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WidgetRef ref, {
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required String accountId,
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required String albumId,
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String? categoryId,
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required List<String> sourcePaths,
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2026-09-28 11:06:40 +08:00
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List<String>? skipPaths,
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2026-09-28 17:06:19 +08:00
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List<String>? forcePaths,
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2026-09-19 04:47:31 +08:00
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}) async {
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// 首次入队动作触发(幂等;拒绝/非 Android 静默降级,见实现注释)。
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await ref.read(notificationPermissionProvider).ensureRequested();
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final preparer = ref.read(uploadPreparerProvider);
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2026-09-28 11:06:40 +08:00
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// P0-1:跳过用户选择取消的重复项。
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final skipSet = skipPaths?.toSet() ?? <String>{};
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final effective = sourcePaths
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.where((path) => !skipSet.contains(path))
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.toList();
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2026-09-28 17:06:19 +08:00
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// Task 8:「全部上传」确认的强传项(重复项 force=true 落任务行)。
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final forceSet = forcePaths?.toSet() ?? <String>{};
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2026-09-28 13:53:42 +08:00
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final results = await Future.wait(
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effective.map((path) => preparer.prepare(
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accountId: accountId,
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albumId: albumId,
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categoryId: categoryId,
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sourcePath: path,
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2026-09-28 17:06:19 +08:00
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force: forceSet.contains(path),
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2026-09-28 13:53:42 +08:00
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)),
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);
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final enqueued = results
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.where((task) => task.state == UploadTaskState.queued)
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.length;
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2026-09-28 11:06:40 +08:00
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return EnqueueResult(
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enqueued: enqueued,
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duplicates: [],
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skipped: sourcePaths.length - effective.length,
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);
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2026-09-19 04:47:31 +08:00
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}
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