import 'package:flutter/material.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'core/api.dart';
import 'login.dart';

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

  @override
  State<SettingsPage> createState() => _SettingsPageState();
}

class _SettingsPageState extends State<SettingsPage> {
  final TextEditingController _urlController = TextEditingController();

  @override
  void dispose() {
    _saveData();
    _urlController.dispose();
    super.dispose();
  }

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

  Future<void> _saveData() async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setString('url', _urlController.text);
  }

  Future<void> _loadData() async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    setState(() {
      _urlController.text = prefs.getString('url') ?? '';
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Settings'),
      ),
      body: ListView(
        padding: const EdgeInsets.all(16.0),
        children: <Widget>[
          Text('LaserProxy URL', style: Theme.of(context).textTheme.titleLarge),
          Text(
              'Set the URL of the LaserProxy instance. Leave it blank to use the default.',
              style: Theme.of(context).textTheme.bodyMedium
          ),
          const SizedBox(height: 16),
          TextField(
            controller: _urlController,
            decoration: const InputDecoration(
              labelText: 'URL',
              hintText: 'https://laserproxy.halfheart.net/',
              border: OutlineInputBorder(),
              focusedBorder: OutlineInputBorder(
                borderSide: BorderSide(color: Color.fromARGB(255, 19, 81, 179)),
              ),
            ),
            onChanged: (value) {
              if (value.isEmpty) {
                proxyURL = "https://laserproxy.halfheart.net/";
              }
              else {
                proxyURL = value;
              }
            }
          ),
          const Divider(height: 32),
          ElevatedButton(
            onPressed: () {
              showDialog(
                context: context,
                builder: (BuildContext context) {
                  return AlertDialog(
                    title: const Text('Reset All Data'),
                    content: const Text('Are you sure you want to reset all data?'),
                    actions: <Widget>[
                      ElevatedButton(
                        onPressed: () async {
                          SharedPreferences prefs = await SharedPreferences.getInstance();
                          await prefs.clear();
                          Navigator.pop(context);
                          Navigator.pushReplacement(
                            context,
                            MaterialPageRoute(
                              builder: (context) => const LoginPage(),
                            ),
                          );
                        },
                        style: ElevatedButton.styleFrom(
                          backgroundColor: Colors.red,
                          textStyle: const TextStyle(color: Colors.white),
                        ),
                        child: const Text('Yes'),
                      ),
                      ElevatedButton(
                        onPressed: () {
                          Navigator.pop(context);
                        },
                        child: const Text('No'),
                      ),
                    ]
                  );
                }
              );
            },
            child: const Text('Reset All Data'),
          ),
        ],
      ),
    );
  }
}