import 'package:flutter/material.dart';
import 'package:youmazgestion/Models/users.dart';
import '../Services/authDatabase.dart';

class EditUserPage extends StatefulWidget {
  final Users user;

  const EditUserPage({super.key, required this.user});

  @override
  _EditUserPageState createState() => _EditUserPageState();
}

class _EditUserPageState extends State<EditUserPage> {
  late TextEditingController _nameController;
  late TextEditingController _lastNameController;
  late TextEditingController _emailController;
  late TextEditingController _usernameController;
  late TextEditingController _passwordController;
  String _selectedRole = '';

  @override
  void initState() {
    super.initState();
    _nameController = TextEditingController(text: widget.user.name);
    _lastNameController = TextEditingController(text: widget.user.lastName);
    _emailController = TextEditingController(text: widget.user.email);
    _usernameController = TextEditingController(text: widget.user.username);
    _passwordController =
        TextEditingController(); // Leave password field empty initially
    _selectedRole = widget.user.role;
  }

  @override
  void dispose() {
    _nameController.dispose();
    _lastNameController.dispose();
    _emailController.dispose();
    _usernameController.dispose();
    _passwordController.dispose();
    super.dispose();
  }

  void _updateUser() {
    final String name = _nameController.text;
    final String lastName = _lastNameController.text;
    final String email = _emailController.text;
    final String username = _usernameController.text;
    final String password =
        _passwordController.text; // Get the entered password
    final String role = _selectedRole;

    final Users updatedUser = Users(
      id: widget.user.id,
      name: name,
      lastName: lastName,
      email: email,
      password: password.isNotEmpty
          ? password
          : widget.user
              .password, // Use entered password if not empty, otherwise keep the existing password
      username: username,
      role: role,
    );

    AuthDatabase.instance.updateUser(updatedUser).then((value) {
      // User update successful
      showDialog(
        context: context,
        builder: (BuildContext context) {
          return AlertDialog(
            title: const Text('Update Successful'),
            content: const Text('User information has been updated.'),
            actions: <Widget>[
              ElevatedButton(
                onPressed: () {
                  Navigator.of(context).pop();
                  Navigator.pop(context,
                      true); // Return true to indicate successful update
                },
                child: const Text('OK'),
              ),
            ],
          );
        },
      );
    }).catchError((error) {
      print(error);
      // Update failed
      showDialog(
        context: context,
        builder: (BuildContext context) {
          return AlertDialog(
            title: const Text('Update Failed'),
            content:
                const Text('An error occurred during user information update.'),
            actions: <Widget>[
              ElevatedButton(
                onPressed: () {
                  Navigator.of(context).pop();
                },
                child: const Text('OK'),
              ),
            ],
          );
        },
      );
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Edit User'),
      ),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: SingleChildScrollView(
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: [
              TextField(
                controller: _nameController,
                decoration: const InputDecoration(
                  labelText: 'First Name',
                ),
              ),
              const SizedBox(height: 16.0),
              TextField(
                controller: _lastNameController,
                decoration: const InputDecoration(
                  labelText: 'Last Name',
                ),
              ),
              const SizedBox(height: 16.0),
              TextField(
                controller: _emailController,
                decoration: const InputDecoration(
                  labelText: 'Email',
                ),
                keyboardType: TextInputType.emailAddress,
              ),
              const SizedBox(height: 16.0),
              TextField(
                controller: _usernameController,
                decoration: const InputDecoration(
                  labelText: 'Username',
                ),
              ),
              const SizedBox(height: 16.0),
              TextField(
                controller: _passwordController,
                decoration: const InputDecoration(
                  labelText: 'Password',
                ),
                obscureText: true,
              ),
              const SizedBox(height: 16.0),
              DropdownButton<String>(
                value: _selectedRole,
                onChanged: (String? newValue) {
                  setState(() {
                    _selectedRole = newValue!;
                  });
                },
                items: <String>['admin', 'user']
                    .map<DropdownMenuItem<String>>((String value) {
                  return DropdownMenuItem<String>(
                    value: value,
                    child: Text(value),
                  );
                }).toList(),
              ),
              const SizedBox(height: 16.0),
              ElevatedButton(
                onPressed: _updateUser,
                child: const Text('Update'),
              ),
            ],
          ),
        ),
      ),
    );
  }
}