import 'package:immich_mobile/entities/asset.entity.dart';
import 'package:immich_mobile/providers/api.provider.dart';
import 'package:immich_mobile/providers/db.provider.dart';
import 'package:immich_mobile/services/api.service.dart';
import 'package:isar/isar.dart';
import 'package:logging/logging.dart';
import 'package:openapi/api.dart';
import 'package:riverpod_annotation/riverpod_annotation.dart';

part 'person.service.g.dart';

@riverpod
PersonService personService(PersonServiceRef ref) =>
    PersonService(ref.read(apiServiceProvider), ref.read(dbProvider));

class PersonService {
  final Logger _log = Logger("PersonService");
  final ApiService _apiService;
  final Isar _db;

  PersonService(this._apiService, this._db);

  Future<List<PersonResponseDto>> getAllPeople() async {
    try {
      final peopleResponseDto = await _apiService.peopleApi.getAllPeople();
      return peopleResponseDto?.people ?? [];
    } catch (error, stack) {
      _log.severe("Error while fetching curated people", error, stack);
      return [];
    }
  }

  Future<List<Asset>> getPersonAssets(String id) async {
    List<Asset> result = [];
    var hasNext = true;
    var currentPage = 1;

    try {
      while (hasNext) {
        final response = await _apiService.searchApi.searchMetadata(
          MetadataSearchDto(
            personIds: [id],
            page: currentPage,
            size: 1000,
          ),
        );

        if (response == null) {
          break;
        }

        if (response.assets.nextPage == null) {
          hasNext = false;
        }

        final assets = response.assets.items;
        final mapAssets =
            await _db.assets.getAllByRemoteId(assets.map((e) => e.id));
        result.addAll(mapAssets);

        currentPage++;
      }
    } catch (error, stack) {
      _log.severe("Error while fetching person assets", error, stack);
    }

    return result;
  }

  Future<PersonResponseDto?> updateName(String id, String name) async {
    try {
      return await _apiService.peopleApi.updatePerson(
        id,
        PersonUpdateDto(
          name: name,
        ),
      );
    } catch (error, stack) {
      _log.severe("Error while updating person name", error, stack);
    }
    return null;
  }
}