slogan/lib/features/profile/photo_upload_provider.dart

import 'package:flutter_riverpod/flutter_riverpod.dart';

import '../../core/auth/auth_provider.dart';

/// 照片类型（与后端 consts.PhotoType 对应）
class PhotoType {
  static const int headshot = 1;
  static const int fullFront = 2;
  static const int fullSide = 3;
  static const int fullBack = 4;

  static const Map<int, String> labels = {
    headshot: '大头照',
    fullFront: '全身正面',
    fullSide: '全身侧面',
    fullBack: '全身背面',
  };

  static const Map<int, String> descs = {
    headshot: '清晰正脸、光线充足',
    fullFront: '站立正面全身，拍全脚底',
    fullSide: '站立侧面全身，自然放松',
    fullBack: '站立背面全身，露出轮廓',
  };

  static const List<int> all = [headshot, fullFront, fullSide, fullBack];
}

class UserPhotoInfo {
  final int id;
  final int type;
  final String url;

  const UserPhotoInfo({
    required this.id,
    required this.type,
    required this.url,
  });
}

class PhotoNotifier extends AsyncNotifier<List<UserPhotoInfo>> {
  @override
  Future<List<UserPhotoInfo>> build() async {
    final api = ref.read(apiClientProvider);
    final list = await api.get<List<dynamic>>('/user-photo/list');
    return list
        .map((e) => UserPhotoInfo(
              id: (e['id'] as num).toInt(),
              type: (e['type'] as num).toInt(),
              url: e['url'] as String? ?? '',
            ))
        .toList();
  }

  Future<void> upload(int type, String filePath) async {
    final api = ref.read(apiClientProvider);
    await api.upload('/user-photo/upload', {'type': type}, 'file', filePath);
    await refresh();
  }

  Future<void> delete(int id) async {
    final api = ref.read(apiClientProvider);
    await api.post('/user-photo/delete', {'id': id});
    await refresh();
  }

  Future<void> refresh() async {
    state = const AsyncLoading();
    state = await AsyncValue.guard(build);
  }

  /// 某类型是否已上传
  bool hasType(int type) => state.value?.any((p) => p.type == type) ?? false;
}

final photoProvider =
    AsyncNotifierProvider<PhotoNotifier, List<UserPhotoInfo>>(PhotoNotifier.new);