course-work/lib/logic/orderscubit.dart

import 'package:cubit_form/cubit_form.dart';
import 'package:equatable/equatable.dart';
import 'package:selfprivacy/logic/server_api.dart';
import 'package:selfprivacy/models/order.dart';

export 'package:provider/provider.dart';

part 'ordersstate.dart';

class OrdersCubit extends Cubit<OrdersState> {
  OrdersCubit()
      : super(
          const OrdersState(
            <Order>[],
            false,
          ),
        );

  final ServerApi api = ServerApi();

  Future<void> load() async {
    refresh();
  }

  Future<void> refresh() async {
    emit(state.copyWith(isLoading: true));
    final resp = await api.getOrders();
    final List<Order> items = resp.data;
    if (items.isNotEmpty) {
      emit(
        OrdersState(
          items,
          false,
        ),
      );
    } else {
      emit(state.copyWith(isLoading: false));
    }
  }

  Future<void> create(final Order order) async {
    await api.createOrder(order);

    final List<Order> items = List<Order>.from(state.orders);
    items.add(order);
    emit(state.copyWith(orders: items));
  }

  @override
  void clear() async {
    emit(
      const OrdersState(
        <Order>[],
        false,
      ),
    );
  }
}