import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../providers/auth_provider.dart';
import '../widgets/rounded_input.dart';
import '../widgets/primary_button.dart';
import 'dashboard_screen.dart';

class LoginScreen extends StatefulWidget {
  const LoginScreen({super.key});
  @override
  State<LoginScreen> createState() => _LoginScreenState();
}

class _LoginScreenState extends State<LoginScreen> {
  final cLoginId = TextEditingController();
  final cPassword = TextEditingController();

  @override
  void dispose() {
    cLoginId.dispose();
    cPassword.dispose();
    super.dispose();
  }

  Future<void> _login() async {
    final auth = Provider.of<AuthProvider>(context, listen: false);

    // Basic validation
    final loginId = cLoginId.text.trim();
    final password = cPassword.text.trim();
    if (loginId.isEmpty || password.isEmpty) {
      ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text('Please enter login id and password')));
      return;
    }

    final res = await auth.login(loginId, password);

    // Your controller returns { success: true/false, message, token, user }
    if (res['success'] == true) {
      // Navigate to dashboard
      if (!mounted) return;
      Navigator.of(context).pushReplacement(MaterialPageRoute(builder: (_) => const DashboardScreen()));
    } else {
      final msg = res['message']?.toString() ?? 'Login failed';
      if (!mounted) return;
      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(msg)));
    }
  }

  @override
  Widget build(BuildContext context) {
    final auth = Provider.of<AuthProvider>(context);
    final width = MediaQuery.of(context).size.width;
    return Scaffold(
      appBar: AppBar(title: const Text('Login')),
      body: Padding(
        padding: EdgeInsets.symmetric(horizontal: width * 0.06, vertical: 20),
        child: Column(
          children: [
            RoundedInput(controller: cLoginId, hint: 'Email / Mobile / Customer ID', keyboardType: TextInputType.text),
            const SizedBox(height: 12),
            RoundedInput(controller: cPassword, hint: 'Password', obscure: true),
            const SizedBox(height: 18),
            PrimaryButton(label: 'Login', onTap: _login, busy: auth.loading),
          ],
        ),
      ),
    );
  }
}