customer page

2025-10-26 22:57:22 +07:00
parent 5c683eda8d
commit 0bffd92a08
22 changed files with 3727 additions and 3 deletions
@@ -0,0 +1,82 @@
+import 'package:bloc/bloc.dart';
+import 'package:dartz/dartz.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:injectable/injectable.dart';
+import '../../../domain/customer/customer.dart';
+
+part 'customer_loader_event.dart';
+part 'customer_loader_state.dart';
+part 'customer_loader_bloc.freezed.dart';
+
+@injectable
+class CustomerLoaderBloc
+    extends Bloc<CustomerLoaderEvent, CustomerLoaderState> {
+  final ICustomerRepository _repository;
+  CustomerLoaderBloc(this._repository) : super(CustomerLoaderState.initial()) {
+    on<CustomerLoaderEvent>(_onCustomerLoaderEvent);
+  }
+
+  Future<void> _onCustomerLoaderEvent(
+    CustomerLoaderEvent event,
+    Emitter<CustomerLoaderState> emit,
+  ) {
+    return event.map(
+      fetched: (e) async {
+        var newState = state;
+
+        if (e.isRefresh) {
+          newState = newState.copyWith(isFetching: true);
+          emit(newState);
+        }
+
+        newState = await _mapFetchedToState(newState, isRefresh: e.isRefresh);
+
+        emit(newState);
+      },
+      setSelectedCustomer: (e) async {
+        emit(state.copyWith(selectedCustomer: e.customer));
+      },
+    );
+  }
+
+  Future<CustomerLoaderState> _mapFetchedToState(
+    CustomerLoaderState state, {
+    bool isRefresh = false,
+  }) async {
+    state = state.copyWith(isFetching: false);
+
+    if (state.hasReachedMax && state.customers.isNotEmpty && !isRefresh) {
+      return state;
+    }
+
+    if (isRefresh) {
+      state = state.copyWith(
+        page: 1,
+        failureOrOption: none(),
+        hasReachedMax: false,
+        customers: [],
+      );
+    }
+
+    final failureOrCustomer = await _repository.getCustomer(page: state.page);
+
+    state = failureOrCustomer.fold(
+      (f) {
+        if (state.customers.isNotEmpty) {
+          return state.copyWith(hasReachedMax: true);
+        }
+        return state.copyWith(failureOrOption: optionOf(f));
+      },
+      (customers) {
+        return state.copyWith(
+          customers: List.from(state.customers)..addAll(customers.customers),
+          failureOrOption: none(),
+          page: state.page + 1,
+          hasReachedMax: customers.customers.length < 10,
+        );
+      },
+    );
+
+    return state;
+  }
+}