import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_samples/helpers/constants/route.dart';
import 'package:flutter_samples/logics/entities/page/poetry.dart';
import 'package:flutter_samples/logics/entities/state/poetry_list.dart';
import 'package:flutter_samples/logics/models/poetry.dart';
import 'package:flutter_samples/router/router.dart';

class PoetryListService extends StateNotifier<PoetryListState> {
  final PoetryModel _poetryModel;
  PoetryListService(this._poetryModel) : super(const PoetryListState());

  void setUp() {
    queryPoetryList();
  }

  void toPoetryDetailPage(Poetry poetry) {
    router.pushNamed(
      Routes.poetry,
      queryParameters: {'id': poetry.id.toString()},
    );
  }

  // 分页加载更多
  Future<void> queryMorePoetryList() async {
    final loading = state.poetryData.loading;
    final loadAll = state.poetryData.loadAll;
    if (loading || loadAll) return;
    await queryPoetryList();
  }

  // 获取诗词列表
  Future<void> queryPoetryList() async {
    try {
      final size = state.poetryData.size;
      final page = state.poetryData.page;
      final loading = state.poetryData.loading;
      final loadAll = state.poetryData.loadAll;
      if (loading || loadAll) {
        return;
      }
      state = state.copyWith(
        poetryData: state.poetryData.copyWith(loading: true),
      );
      final resp = await _poetryModel.getPoetryList({
        'page': page,
        'size': size,
      });
      state = state.copyWith(
        poetryData: state.poetryData.copyWith(
          list:
              page == 1 ? resp.list : [...state.poetryData.list, ...resp.list],
          page: resp.page,
          size: resp.size,
          total: resp.total,
          loadAll: resp.list.length < size,
          loading: false,
        ),
      );
      await Future.delayed(Duration(milliseconds: 500));
      state = state.copyWith(
        poetryData: state.poetryData.copyWith(loading: false),
      );
    } catch (e) {
      // Handle error
    }
  }
}

final poetryListServiceProvider =
    StateNotifierProvider<PoetryListService, PoetryListState>((ref) {
      final poetryModel = ref.read(poetryProvider);
      return PoetryListService(poetryModel);
    });