Productivity-Measure-App-Flutter/lib/screens/login.dart

import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;
import 'package:productivity_measure_app/screens/dashboard.dart';
import 'package:shared_preferences/shared_preferences.dart';

import '../utils/SharedPreferenceHelper.dart';

class Login extends StatefulWidget {
  const Login({super.key});

  @override
  State<Login> createState() => _LoginState();
}

class _LoginState extends State<Login> {
  bool _obscureText = true;
  final TextEditingController _emailController = TextEditingController();
  final TextEditingController _passwordController = TextEditingController();
  final _formKey = GlobalKey<FormState>();
  bool isLoading = false;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Login'),
      ),
      body: Center(
        child: SingleChildScrollView(
          child: Padding(
            padding: const EdgeInsets.all(16.0),
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: <Widget>[
                Image.asset(
                  'assets/images/pro_icon_2.png',
                  fit: BoxFit.fitWidth, // Adjust width to 80% of screen width
                  height: 150.0, // Adjust the height as needed to match width
                ),
                SizedBox(height: 16.0),
                TextField(
                  controller: _emailController,
                  decoration: InputDecoration(
                    labelText: 'User',
                    border: OutlineInputBorder(),
                    prefixIcon: Icon(Icons.person),
                  ),
                ),
                SizedBox(height: 16.0),
                TextField(
                  controller: _passwordController,
                  decoration: InputDecoration(
                    labelText: 'Password',
                    border: OutlineInputBorder(),
                    prefixIcon: Icon(Icons.lock),
                    suffixIcon: IconButton(
                      icon: Icon(
                        _obscureText ? Icons.visibility : Icons.visibility_off,
                      ),
                      onPressed: () {
                        setState(() {
                          _obscureText = !_obscureText;
                        });
                      },
                    ),
                  ),
                  obscureText: _obscureText,
                ),
                SizedBox(height: 24.0),
                SizedBox(
                  width: double.infinity,
                  child: ElevatedButton(

                    onPressed: () {
                      // Handle login logic here
                    },
                    style: ElevatedButton.styleFrom(
                      backgroundColor: Colors.lightGreen,
                      shape: RoundedRectangleBorder(
                        borderRadius: BorderRadius.circular(4.0),
                      ),
                      minimumSize: Size(double.infinity, 48.0),
                    ),
                    child: Text(
                      'Login',
                      style: TextStyle(color: Colors.white),
                    ),
                  ),
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }

  Future<void> _login() async {

    if (_formKey.currentState!.validate()) {
      String email = _emailController.text.trim();
      print(email);
      String password = _passwordController.text.trim();
      print(password);

      setState(() {
        isLoading = true;
      });

      try {
        final url = Uri.parse(
            'https://cosmos.utopiadeals.com/cosmos/rest/application/authenticate-user');
        final response = await http.post(
          url,
          headers: {"Content-Type": "application/json"},
          body: jsonEncode({
            "username": email,
            "password": password,
          }),
        );

        if (response.statusCode == 200) {

          print('Login Successful!');
          final Map<String, dynamic> jsonResponse = jsonDecode(response.body);

          SharedPreferences prefs = await SharedPreferences.getInstance();
          await prefs.setBool('isLoggedIn', true);
          // Deserialize JSON into DriverResponse object
          //final driverResponse = DriverResponse.fromJson(jsonResponse);
          //print('Trucker Name: ${driverResponse.truckerName}');
          //await SharedPreferenceHelper.setPreferenceObject("driver_data", driverResponse.toJson());
          //print("-----------------------------------");
          /*DriverResponse? userResponse = await SharedPreferenceHelper.getPreferenceObject(
            "driver_data",
                (json) => DriverResponse.fromJson(json),
          );*/

          //print(userResponse?.truckerName);

          await Future.delayed(const Duration(seconds: 2));
          Navigator.pushAndRemoveUntil(
            context,
            MaterialPageRoute(builder: (context) => Dashboard()),
                (Route<dynamic> route) => false, // This condition removes all previous routes
          );

        } else {

          print('Login Failed! Status code: ${response.statusCode}');
        }
      } catch (e) {
        // If an error occurs
        print('Exception: $e');
      } finally {
        setState(() {
          isLoading = false;
        });
      }
    }
  }
}