fcs/lib/pages/delivery/model/delivery_model.dart

import 'dart:async';

import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:fcs/data/services/services.dart';
import 'package:fcs/domain/constants.dart';
import 'package:fcs/domain/entities/carton.dart';
import 'package:fcs/pages/main/model/base_model.dart';
import 'package:logging/logging.dart';

import '../../../pagination/paginator_listener.dart';

class DeliveryModel extends BaseModel {
  final log = Logger('DeliveryModel');
  PaginatorListener<Carton>? getCartons;
  int selectedIndex = 1;

  onChanged(int index) {
    selectedIndex = index;
    loadPaginationCartons(selectedIndex);
    notifyListeners();
  }

  loadPaginationCartons(int index) {
    if (user == null || !user!.hasDeliveries()) return;
    String path = "/$cartons_collection";

    Query col = FirebaseFirestore.instance.collection(path);
    Query pageQuery = FirebaseFirestore.instance.collection(path);

    if (index == 1) {
      col = col
          .where("status", isEqualTo: carton_shipped_status)
          .where("carton_type", whereIn: [
        carton_from_packages,
        carton_from_shipments,
        carton_small_bag
      ]);
      pageQuery = pageQuery
          .where("status", isEqualTo: carton_shipped_status)
          .where("carton_type", whereIn: [
        carton_from_packages,
        carton_from_shipments,
        carton_small_bag
      ]);
    }

    if (index == 2) {
      col = col
          .where("is_delivered", isEqualTo: true)
          .where("status", whereIn: [carton_delivered_status]);
      pageQuery = pageQuery
          .where("is_delivered", isEqualTo: true)
          .where("status", whereIn: [carton_delivered_status]);
    }

    pageQuery = pageQuery.orderBy("carton_number");

    getCartons?.close();
    getCartons = PaginatorListener<Carton>(
        col, pageQuery, (data, id) => Carton.fromMap(data, id),
        rowPerLoad: 30);
  }

  void initUser(user) {
    super.initUser(user);
  }

  @override
  logout() async {
    getCartons?.close();
  }

  Future<void> deliver(Carton carton) {
    return Services.instance.cartonService.deliver(carton);
  }
}