TKK_E32210743/lib/login.dart

import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:flutter/material.dart';
import 'package:monitoringlistrik/authadmin.dart';
import 'package:monitoringlistrik/pengguna.dart';

class LoginScreen extends StatefulWidget {
  @override
  _LoginScreenState createState() => _LoginScreenState();
}

class _LoginScreenState extends State<LoginScreen> {
  final TextEditingController _tokenController = TextEditingController();
  final FirebaseFirestore _firestore = FirebaseFirestore.instance;
  bool isLoading = true;
  List<Map<String, dynamic>> collectionData = [];

  @override
  void initState() {
    super.initState();
  }

  Future<void> fetchData() async {
    setState(() {
      isLoading = true;
    });

    try {
      QuerySnapshot querySnapshot = await _firestore
          .collection('room')
          .where('token',
          isEqualTo: _tokenController.text) // Filter berdasarkan token
          .get();

      if (querySnapshot.docs.isNotEmpty) {
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(
            content: Text('Berhasil Masuk'),
            backgroundColor: Colors.green,
          ),
        );
        _handleUserLogin();
      } else {
        // Tidak ada data yang ditemukan
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(
            content: Text('Data tidak ditemukan'),
            backgroundColor: Colors.red,
          ),
        );
      }
    } catch (e) {
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(
          content: Text('Failed to fetch data: $e'),
          backgroundColor: Colors.red,
        ),
      );
    } finally {
      setState(() {
        isLoading = false;
      });
    }
  }

  @override
  void dispose() {
    _tokenController.dispose();
    super.dispose();
  }

  void _handleAdminLogin() {
    Navigator.pushReplacement(
      context,
      MaterialPageRoute(builder: (context) => AdminScreen()),
    );
  }

  void _handleUserLogin() {
    Navigator.pushReplacement(
      context,
      MaterialPageRoute(
          builder: (context) => PenggunaScreen(
            token: _tokenController.text,
          )),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        backgroundColor: Colors.blue,
        body: Center(
          child: Padding(
            padding: EdgeInsets.symmetric(horizontal: 60),
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                Icon(
                  Icons.person,
                  size: 100.0,
                  color: Colors.white,
                ),
                SizedBox(height: 40.0),
                Container(
                  padding: EdgeInsets.all(20.0),
                  decoration: BoxDecoration(
                    color: Colors.grey[200],
                    borderRadius: BorderRadius.circular(16.0),
                  ),
                  child: Column(
                    children: [
                      ElevatedButton.icon(
                        onPressed: _handleAdminLogin,
                        icon: Icon(Icons.admin_panel_settings),
                        label: Text('Admin Kost'),
                        style: ElevatedButton.styleFrom(
                          primary: Colors.grey[800],
                          onPrimary: Colors.white,
                          minimumSize: Size(double.infinity, 50),
                        ),
                      ),
                      SizedBox(height: 16.0),
                      ElevatedButton.icon(
                        onPressed: fetchData,
                        icon: Icon(Icons.person),
                        label: Text('Pengguna Kost'),
                        style: ElevatedButton.styleFrom(
                          primary: Colors.grey[800],
                          onPrimary: Colors.white,
                          minimumSize: Size(double.infinity, 50),
                        ),
                      ),
                      SizedBox(height: 16.0),
                      TextField(
                        controller: _tokenController,
                        decoration: InputDecoration(
                          border: OutlineInputBorder(),
                          labelText: 'Masukkan Token',
                        ),
                      ),
                    ],
                  ),
                ),
              ],
            ),
          ),
        ));
  }
}