// ignore_for_file: invalid_use_of_protected_member

part of '../../registration_page.dart';

extension _RegistrationOverviewPart on _RegistrationPageState {
  /// Find all scanned items that are already on shelf.
  List<PaichaOverviewItem> _findOnShelfItemsInScanned() {
    return registration_calculations.findOnShelfItemsInScanned(
      overview: _overview,
      zongpaiNos: _zongpaiNos,
    );
  }

  /// Find all scanned items that are already transferred.
  List<PaichaOverviewItem> _findTransferredItemsInScanned() {
    return registration_calculations.findTransferredItemsInScanned(
      overview: _overview,
      zongpaiNos: _zongpaiNos,
    );
  }

  /// Whether any scanned item already has a location binding (on_shelf or transferred).
  bool _hasAnyLocatedInScanned() {
    return registration_calculations.hasAnyLocatedInScanned(
      overview: _overview,
      zongpaiNos: _zongpaiNos,
    );
  }

  Future<String?> _baseUrl() async {
    final configService = AppConfigService();
    final baseUrl = await configService.getString('api_url') ?? '';
    if (baseUrl.isEmpty) {
      return null;
    }
    return baseUrl;
  }

  Future<void> _loadOverview(String zongpaiNo, {bool force = false}) async {
    if (!force && _overviewZongpaiNo == zongpaiNo && _overview != null) {
      return;
    }
    final requestId = ++_overviewRequestId;
    setState(() {
      _overviewZongpaiNo = zongpaiNo;
      _overviewLoading = true;
      _overviewNotFound = false;
      _overviewError = null;
    });

    final baseUrl = await _baseUrl();
    if (!mounted || requestId != _overviewRequestId) return;
    if (baseUrl == null) {
      setState(() {
        _overviewLoading = false;
        _overviewError = '未配置 API 地址，请前往设置';
      });
      return;
    }

    final result = await _apiService.fetchPaichaOverview(
      baseUrl: baseUrl,
      zongpaiNo: zongpaiNo,
    );
    if (!mounted || requestId != _overviewRequestId) return;

    setState(() {
      _overviewLoading = false;
      if (result.success) {
        _overview = result;
        _overviewNotFound = false;
        _overviewError = null;
      } else if (result.notFound) {
        _overview = null;
        _overviewNotFound = true;
        _overviewError = null;
      } else {
        _overviewError = result.errorMessage ?? '加载失败，点击重试';
      }
    });
  }

  Future<void> _refreshCurrentOverview() async {
    final zongpaiNo = _overviewZongpaiNo;
    if (zongpaiNo == null) return;
    await _loadOverview(zongpaiNo, force: true);
  }
}