wangjia
80 lines
2.2 KiB
Dart
80 lines
2.2 KiB
Dart
// providers/license_purchase_provider.dart — 授权购买订单列表（订单管理 tab）。
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// 后端 GET /license/purchases 只支持 page/page_size/status 三个查询轴；
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// 套餐/关键词/下单时间筛选在列表屏做客户端过滤（当前页），与 stock_out 列表
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// 屏「仓库」筛选同一established 口径（server 端无对应参数）。
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../core/auth/auth_state.dart';
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import '../models/license.dart';
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import 'license_provider.dart' show licenseRepositoryProvider;
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final purchaseListProvider =
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AsyncNotifierProvider<PurchaseListNotifier, PurchaseListResult>(
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PurchaseListNotifier.new,
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);
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class PurchaseListNotifier extends AsyncNotifier<PurchaseListResult> {
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int _page = 1;
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int _pageSize = 10;
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String _status = ''; // '' | pending | paid | failed
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PurchaseListResult? _cache;
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@override
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Future<PurchaseListResult> build() async {
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ref.watch(authStateProvider.select((s) => s.user?.shopId));
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try {
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final result = await _fetch();
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_cache = result;
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return result;
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} catch (_) {
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if (_cache != null) return _cache!;
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rethrow;
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}
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}
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Future<PurchaseListResult> _fetch() {
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return ref.read(licenseRepositoryProvider).listPurchases(
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page: _page,
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pageSize: _pageSize,
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status: _status.isEmpty ? null : _status,
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);
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}
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int get page => _page;
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int get pageSize => _pageSize;
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String get currentStatus => _status;
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void reload() {
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// 保留上一次数据（isReloading）→ 屏幕可继续渲染旧内容 + 叠加半透明进度，不白屏。
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state = const AsyncValue<PurchaseListResult>.loading()
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.copyWithPrevious(state);
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_fetch().then((result) {
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_cache = result;
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state = AsyncValue.data(result);
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}, onError: (Object e, StackTrace st) {
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if (_cache != null) {
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state = AsyncValue.data(_cache!);
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} else {
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state = AsyncValue.error(e, st);
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}
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});
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}
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void setPage(int p) {
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_page = p;
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reload();
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}
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void setPageSize(int size) {
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_pageSize = size;
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_page = 1;
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reload();
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}
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void setStatus(String status) {
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_status = status;
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_page = 1;
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reload();
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}
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}
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