import 'package:e_scan/backend/api/api_calls.dart';
import 'package:e_scan/backend/objectbox/entities/stock_picking/stock_picking_record_entity.dart';
import 'package:e_scan/backend/objectbox/objectbox_manager.dart';
import 'package:e_scan/backend/schema/stock_picking/update_move_line_dto.dart';
import 'package:e_scan/backend/schema/user/user_struct.dart';
import 'package:e_scan/services/secure_storage.dart';
import 'package:e_scan/services/token_provider.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_secure_storage/flutter_secure_storage.dart';
import 'package:freezed_annotation/freezed_annotation.dart';

part 'reception_page_model.freezed.dart';

final receptionPageModelProvider =
    StateNotifierProvider<ReceptionPageModel, ReceptionPageState>((ref) {
      return ReceptionPageModel(
        secureStorage: ref.read(sharedPrefsProvider),
        tokenProvider: ref.read(tokenProvider),
        userConnectedProvider: ref.read(userConnectedProvider),
      );
    });

class ReceptionPageModel extends StateNotifier<ReceptionPageState> {
  ReceptionPageModel({
    required this.secureStorage,
    required this.tokenProvider,
    required this.userConnectedProvider,
  }) : super(const ReceptionPageState()) {
    getAllReceptions();
  }

  late FlutterSecureStorage secureStorage;
  late TokenProvider tokenProvider;
  final UserConnectedProvider userConnectedProvider;

  Future getUserConnected() async {
    state = state.copyWith(loadingUser: true);
    final user = await userConnectedProvider.get();
    state = state.copyWith(user: user, loadingUser: false);
  }

  Future save({
    required int receptionId,
    VoidCallback? onSuccess,
    VoidCallback? onError,
  }) async {
    try {
      final stockPickingRecords = objectboxManager.store
          .box<StockPickingRecordEntity>();
      final stockPikingEntity = stockPickingRecords.get(receptionId);
      final moveLinesDto =
          stockPikingEntity?.moveLineIdsWithoutPackage
              .map(
                (m) => UpdateMoveLineDto(
                  operation: 1,
                  moveLineId: m.id,
                  values: {"quantity": m.quantity},
                ),
              )
              .toList() ??
          [];
      final res = await ApiCalls.updateAllMoveLineOnStockPicking(
        stockPickingId: receptionId,
        moveLineDto: moveLinesDto,
      );
      if (res) {
        stockPikingEntity?.synchronized = true;
        stockPickingRecords.put(stockPikingEntity!);
        onSuccess?.call();
      } else {
        onError?.call();
      }
    } catch (e) {
      onError?.call();
    }
  }

  Future<void> synchroAllData() async {
    final stockPickingRecords = objectboxManager.store
        .box<StockPickingRecordEntity>();
    final records = stockPickingRecords
        .query(StockPickingRecordEntity_.synchronized.equals(false))
        .build()
        .find();
    for (var rec in records) {
      await save(receptionId: rec.id);
    }
  }

  Future getAllReceptions() async {
    // sync all data first
    await synchroAllData();
    try {
      state = state.copyWith(loadingReceptions: true);
      final res = await ApiCalls.getAllStockPiking();
      res.when(
        (data) {
          state = state.copyWith(receptions: data, loadingReceptions: false);
        },
        (error) {
          state = state.copyWith(loadingReceptions: false);
        },
      );
    } catch (e) {
      state = state.copyWith(loadingReceptions: false);
    }
  }

  Future refreshReceptions() async {
    // sync all data first
    await synchroAllData();
    try {
      final res = await ApiCalls.getAllStockPiking();
      res.when(
        (data) {
          state = state.copyWith(receptions: data, loadingReceptions: false);
        },
        (error) {
          state = state.copyWith(loadingReceptions: false);
        },
      );
    } catch (e) {
      state = state.copyWith(loadingReceptions: false);
    }
  }
}

@freezed
abstract class ReceptionPageState with _$ReceptionPageState {
  const factory ReceptionPageState({
    UserStruct? user,
    @Default(<StockPickingRecordEntity>[])
    List<StockPickingRecordEntity> receptions,
    @Default(false) bool loadingReceptions,
    @Default(false) bool loadingUser,
  }) = _ReceptionPageState;
}