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

class TokenScreen extends StatefulWidget {
  @override
  _TokenScreenState createState() => _TokenScreenState();

  const TokenScreen({
    Key? key,
    required this.token,
  }) : super(key: key);

  final String token;
}

class _TokenScreenState extends State<TokenScreen> {
  final FirebaseFirestore _firestore = FirebaseFirestore.instance;
  final TextEditingController _tokenController = TextEditingController();
  DateTime _selectedDate = DateTime.now();
  int _selectedPackage = 0;

  Future<void> updateDeadline() async {
    int days;
    switch (_selectedPackage) {
      case 1:
        days = 10;
        break;
      case 2:
        days = 15;
        break;
      case 3:
        days = 30;
        break;
      default:
        return;
    }

    try {
      QuerySnapshot querySnapshot = await _firestore
          .collection('room')
          .where('token', isEqualTo: widget.token)
          .get();

      if (querySnapshot.docs.isNotEmpty) {
        String docId = querySnapshot.docs[0].id;
        DocumentSnapshot doc = querySnapshot.docs[0];
        Timestamp currentDeadline = doc['deadline'];
        DateTime newDeadline =
        currentDeadline.toDate().add(Duration(days: days));
        Timestamp deadlineTimestamp = Timestamp.fromDate(newDeadline);

        await _firestore.collection('room').doc(docId).update({
          'deadline': deadlineTimestamp,
        });

        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(
            content: Text('Deadline berhasil diperbarui'),
            backgroundColor: Colors.green,
          ),
        );

        // Display the token
      } else {
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(
            content: Text('Token tidak ditemukan'),
            backgroundColor: Colors.red,
          ),
        );
      }
    } catch (e) {
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(
          content: Text('Gagal memperbarui deadline: $e'),
          backgroundColor: Colors.red,
        ),
      );
    }
  }

  Widget _buildPackageButton(String text, int packageId) {
    return Container(
      margin: EdgeInsets.symmetric(vertical: 10.0, horizontal: 20.0),
      width: 300,
      child: ElevatedButton(
        onPressed: () {
          setState(() {
            _selectedPackage = packageId;
          });
        },
        child: Text(
          text,
          style: TextStyle(fontSize: 18),
        ),
        style: ElevatedButton.styleFrom(
          primary: _selectedPackage == packageId ? Colors.blue : Colors.white,
          onPrimary:
          _selectedPackage == packageId ? Colors.white : Colors.black,
          padding: EdgeInsets.symmetric(horizontal: 24, vertical: 12),
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(30),
          ),
        ),
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.grey,
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Container(
              padding: EdgeInsets.all(16.0),
              decoration: BoxDecoration(
                color: const Color.fromARGB(255, 227, 227, 227),
                borderRadius: BorderRadius.all(Radius.circular(30)),
              ),
              child: Text(
                'Pembelian Token Listrik',
                style: TextStyle(fontSize: 24),
              ),
            ),
            Spacer(),
            Container(
              padding: EdgeInsets.all(16.0),
              child: Text(
                'Token',
                style: TextStyle(fontSize: 20),
              ),
            ),
            Padding(
                padding: EdgeInsets.symmetric(horizontal: 50),
                child: TextField(
                  readOnly: true,
                  decoration: InputDecoration(
                    hintText: widget.token,
                    border: OutlineInputBorder(
                      borderRadius: BorderRadius.circular(10),
                      borderSide: BorderSide(
                        color: Colors.blue, // Warna border biru
                      ),
                    ),
                    focusedBorder: OutlineInputBorder(
                      borderRadius: BorderRadius.circular(10),
                      borderSide: BorderSide(
                        color: Colors.blue,
                        width: 2.0,
                      ),
                    ),
                    enabledBorder: OutlineInputBorder(
                      borderRadius: BorderRadius.circular(10),
                      borderSide: BorderSide(
                        color:
                        Colors.blue,
                        width: 1.0,
                      ),
                    ),
                    focusColor: Colors.blue,
                    hoverColor: Colors.blue,
                    fillColor: Colors.white,
                    filled: true,
                  ),
                )),
            Container(
              padding: EdgeInsets.all(16.0),
              child: Text(
                'Pilih Paket',
                style: TextStyle(fontSize: 20),
              ),
            ),
            _buildPackageButton('10 Hari', 1),
            _buildPackageButton('15 Hari', 2),
            _buildPackageButton('30 Hari', 3),
            SizedBox(height: 20),
            if (_selectedPackage != 0)
              ElevatedButton(
                onPressed: updateDeadline,
                child: Text(
                  'Kirim Pilihan Paket',
                  style: TextStyle(color: Colors.white),
                ),
                style: ElevatedButton.styleFrom(
                  primary: Colors.blue,
                  padding: EdgeInsets.symmetric(horizontal: 24, vertical: 12),
                ),
              ),
            SizedBox(height: 20),
            SizedBox(height: 20),
            ElevatedButton(
              onPressed: () {
                Navigator.pushReplacement(
                  context,
                  MaterialPageRoute(builder: (context) => AdminHomeScreen()),
                );
              },
              child: Text(
                'Kembali',
                style: TextStyle(color: Colors.white),
              ),
              style: ElevatedButton.styleFrom(
                primary: Colors.blue,
                padding: EdgeInsets.symmetric(horizontal: 24, vertical: 12),
              ),
            ),
            Spacer(),
          ],
        ),
      ),
    );
  }
}