step 3 : login proses

lib/screen/login/login_provider.dart

@@ -0,0 +1,89 @@
+import 'dart:convert';
+
+import 'package:equatable/equatable.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import '../../app/constant.dart';
+import '../../model/auth_model.dart';
+import '../../provider/current_user_provider.dart';
+import '../../provider/dio_provider.dart';
+import '../../repository/auth_repository.dart';
+import '../../repository/base_repository.dart';
+
+// 3. state provider
+final loginProvider = StateNotifierProvider<LoginNotifier, LoginState>(
+    (ref) => LoginNotifier(ref: ref));
+
+// 2. notifier
+class LoginNotifier extends StateNotifier<LoginState> {
+  final Ref ref;
+  LoginNotifier({required this.ref}) : super(LoginStateInit());
+  void login({
+    required String username,
+    required String host,
+    required String password,
+  }) async {
+    try {
+      state = LoginStateLoading();
+      final resp = await AuthRepository(
+        dio: ref.read(dioProvider),
+      ).login(
+        username: username,
+        host: host,
+        password: password,
+      );
+
+      // print(resp);
+      state = LoginStateDone(model: resp);
+      //Simpan ke token
+      final shared = await SharedPreferences.getInstance();
+      final token = jsonEncode({
+        "host":host,
+        "date": DateTime.now().toString(),
+        "model": resp.model,
+        "token": resp.token
+      });
+      await shared.setString(Constant.bearerName, token);
+      ref.read(currentUserProvider.notifier).state = resp;
+
+      // print(shared.getString(Constant.bearerName));
+    } catch (e) {
+      if (e is BaseRepositoryException) {
+        state = LoginStateError(message: e.message);
+      } else {
+        state = LoginStateError(message: e.toString());
+      }
+    }
+  }
+}
+
+// 1. state
+abstract class LoginState extends Equatable {
+  final DateTime date;
+  const LoginState(this.date);
+  @override
+  List<Object?> get props => [date];
+}
+
+class LoginStateInit extends LoginState {
+  LoginStateInit() : super(DateTime.now());
+}
+
+class LoginStateLoading extends LoginState {
+  LoginStateLoading() : super(DateTime.now());
+}
+
+class LoginStateError extends LoginState {
+  final String message;
+  LoginStateError({
+    required this.message,
+  }) : super(DateTime.now());
+}
+
+class LoginStateDone extends LoginState {
+  final AuthModel model;
+  LoginStateDone({
+    required this.model,
+  }) : super(DateTime.now());
+}