import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;
import 'package:shared_preferences/shared_preferences.dart';

import 'dashboard_screen.dart';
import 'login_screen.dart'; // pastikan ada LoginScreen
import 'riwayat_screen.dart';

// Sesuaikan baseUrl sesuai environment:
// - Android emulator: 'http://10.0.2.2:8000'
// - iOS simulator: 'http://localhost:8000'
// - Perangkat nyata: 'http://<IP_PC>:8000'
// Untuk Web, gunakan host yang bisa diakses browser.
const String baseUrl = 'http://localhost:8000';

class ProfileScreen extends StatefulWidget {
  final String token;
  const ProfileScreen({Key? key, required this.token}) : super(key: key);

  @override
  State<ProfileScreen> createState() => _ProfileScreenState();
}

class _ProfileScreenState extends State<ProfileScreen> {
  late Future<Map<String, dynamic>?> futureProfile;

  @override
  void initState() {
    super.initState();
    futureProfile = fetchProfile();
  }

  Future<Map<String, dynamic>?> fetchProfile() async {
    final url = Uri.parse('$baseUrl/api/employee/profile');
    try {
      final response = await http.get(
        url,
        headers: {
          'Authorization': 'Bearer ${widget.token}',
          'Accept': 'application/json',
        },
      );
      if (response.statusCode == 200) {
        final body = jsonDecode(response.body);
        return body['data'] as Map<String, dynamic>?;
      } else {
        return null;
      }
    } catch (_) {
      return null;
    }
  }

  void _refresh() {
    setState(() {
      futureProfile = fetchProfile();
    });
  }

  Future<void> _logout() async {
    final uri = Uri.parse('$baseUrl/api/logout');
    try {
      final resp = await http.post(
        uri,
        headers: {
          'Authorization': 'Bearer ${widget.token}',
          'Accept': 'application/json',
        },
      );
      if (resp.statusCode == 200) {
        final prefs = await SharedPreferences.getInstance();
        await prefs.remove('token');
        if (!mounted) return;
        Navigator.pushAndRemoveUntil(
          context,
          MaterialPageRoute(builder: (_) => const LoginScreen()),
          (route) => false,
        );
      } else {
        String msg = 'Gagal logout';
        try {
          final b = jsonDecode(resp.body);
          msg = b['message'] ?? msg;
        } catch (_) {}
        ScaffoldMessenger.of(
          context,
        ).showSnackBar(SnackBar(content: Text(msg)));
      }
    } catch (e) {
      ScaffoldMessenger.of(
        context,
      ).showSnackBar(SnackBar(content: Text('Error saat logout: $e')));
    }
  }

  @override
  Widget build(BuildContext context) {
    return FutureBuilder<Map<String, dynamic>?>(
      future: futureProfile,
      builder: (context, snapshot) {
        // Loading
        if (snapshot.connectionState == ConnectionState.waiting) {
          return Scaffold(
            backgroundColor: const Color(0xFFF7F9FB),
            appBar: AppBar(
              title: const Text('Profil Saya'),
              backgroundColor: const Color(0xFF4F8DFD),
              elevation: 0,
              centerTitle: true,
            ),
            body: const Center(child: CircularProgressIndicator()),
          );
        }
        // Error atau null
        if (snapshot.hasError || snapshot.data == null) {
          return Scaffold(
            backgroundColor: const Color(0xFFF7F9FB),
            appBar: AppBar(
              title: const Text('Profil Saya'),
              backgroundColor: const Color(0xFF4F8DFD),
              elevation: 0,
              centerTitle: true,
            ),
            body: Center(
              child: Column(
                mainAxisSize: MainAxisSize.min,
                children: [
                  const Text('Gagal memuat data profil'),
                  const SizedBox(height: 8),
                  ElevatedButton(
                    onPressed: _refresh,
                    style: ElevatedButton.styleFrom(
                      backgroundColor: const Color(0xFF4F8DFD),
                    ),
                    child: const Text('Coba Lagi'),
                  ),
                ],
              ),
            ),
          );
        }
        // Data tersedia
        final user = snapshot.data!;
        final profile = user['profile'] as Map<String, dynamic>? ?? {};
        final name = (user['name'] ?? '-').toString();
        final email = (user['email'] ?? '-').toString();
        final phone = (profile['phone_number'] ?? '-').toString();
        final nip = (profile['nip'] ?? '-').toString();
        final position = (profile['position'] ?? '-').toString();
        final photoPath = profile['profile_photo'];
        final photoUrl =
            photoPath != null ? '$baseUrl/storage/$photoPath' : null;

        return Scaffold(
          backgroundColor: const Color(0xFFF7F9FB),
          appBar: AppBar(
            title: const Text('Profil Saya'),
            backgroundColor: const Color(0xFF4F8DFD),
            elevation: 0,
            centerTitle: true,
          ),
          body: SingleChildScrollView(
            child: Column(
              children: [
                // Header: avatar + nama (tanpa tombol upload)
                Container(
                  width: double.infinity,
                  decoration: const BoxDecoration(
                    color: Color(0xFF4F8DFD),
                    borderRadius: BorderRadius.only(
                      bottomLeft: Radius.circular(24),
                      bottomRight: Radius.circular(24),
                    ),
                  ),
                  child: Column(
                    children: [
                      const SizedBox(height: 40),
                      CircleAvatar(
                        radius: 40,
                        backgroundColor: Colors.white,
                        child: CircleAvatar(
                          radius: 36,
                          backgroundImage:
                              photoUrl != null
                                  ? NetworkImage(photoUrl)
                                  : const AssetImage('assets/logom.png')
                                      as ImageProvider,
                        ),
                      ),
                      const SizedBox(height: 12),
                      Text(
                        name,
                        style: const TextStyle(
                          fontWeight: FontWeight.bold,
                          fontSize: 20,
                          color: Colors.white,
                        ),
                      ),
                      const SizedBox(height: 24),
                    ],
                  ),
                ),
                const SizedBox(height: 18),
                // Informasi Pribadi tanpa edit
                Padding(
                  padding: const EdgeInsets.symmetric(horizontal: 20.0),
                  child: Container(
                    width: double.infinity,
                    padding: const EdgeInsets.all(18),
                    decoration: BoxDecoration(
                      color: Colors.white,
                      borderRadius: BorderRadius.circular(18),
                      boxShadow: [
                        BoxShadow(
                          color: Colors.black.withOpacity(0.03),
                          blurRadius: 8,
                          offset: const Offset(0, 2),
                        ),
                      ],
                    ),
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        const Text(
                          'Informasi Pribadi',
                          style: TextStyle(
                            fontWeight: FontWeight.bold,
                            fontSize: 15,
                          ),
                        ),
                        const SizedBox(height: 12),
                        _ProfileInfoRow(label: 'Nama', value: name),
                        _ProfileInfoRow(label: 'Email', value: email),
                        _ProfileInfoRow(label: 'No. Telepon', value: phone),
                        _ProfileInfoRow(label: 'NIP', value: nip),
                        _ProfileInfoRow(label: 'Jabatan', value: position),
                      ],
                    ),
                  ),
                ),
                const SizedBox(height: 18),
                // Menu hanya logout
                Padding(
                  padding: const EdgeInsets.symmetric(horizontal: 20.0),
                  child: Column(
                    children: [
                      _ProfileMenuItem(
                        icon: Icons.logout,
                        label: 'Keluar',
                        color: Colors.red,
                        onTap: () async {
                          final confirmed =
                              await showDialog<bool>(
                                context: context,
                                builder:
                                    (_) => AlertDialog(
                                      title: const Text('Logout'),
                                      content: const Text(
                                        'Yakin ingin logout?',
                                      ),
                                      actions: [
                                        TextButton(
                                          onPressed:
                                              () =>
                                                  Navigator.pop(context, false),
                                          child: const Text('Batal'),
                                        ),
                                        TextButton(
                                          onPressed:
                                              () =>
                                                  Navigator.pop(context, true),
                                          child: const Text('Ya'),
                                        ),
                                      ],
                                    ),
                              ) ??
                              false;
                          if (confirmed) {
                            await _logout();
                          }
                        },
                      ),
                    ],
                  ),
                ),
                const SizedBox(height: 24),
              ],
            ),
          ),
          bottomNavigationBar: BottomNavigationBar(
            currentIndex: 2,
            selectedItemColor: const Color(0xFF4F8DFD),
            unselectedItemColor: Colors.black38,
            items: const [
              BottomNavigationBarItem(
                icon: Icon(Icons.home_rounded),
                label: 'Beranda',
              ),
              BottomNavigationBarItem(
                icon: Icon(Icons.history),
                label: 'Riwayat',
              ),
              BottomNavigationBarItem(
                icon: Icon(Icons.person),
                label: 'Profil',
              ),
            ],
            type: BottomNavigationBarType.fixed,
            onTap: (index) {
              if (index == 2) return;
              if (index == 0) {
                Navigator.pushAndRemoveUntil(
                  context,
                  MaterialPageRoute(
                    builder:
                        (context) => DashboardScreen(
                          userName: name,
                          token: widget.token,
                        ),
                  ),
                  (route) => false,
                );
              }
              if (index == 1) {
                Navigator.pushAndRemoveUntil(
                  context,
                  MaterialPageRoute(
                    builder:
                        (context) =>
                            RiwayatScreen(userName: name, token: widget.token),
                  ),
                  (route) => false,
                );
              }
            },
          ),
        );
      },
    );
  }
}

class _ProfileInfoRow extends StatelessWidget {
  final String label;
  final String value;
  const _ProfileInfoRow({required this.label, required this.value, Key? key})
    : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.only(bottom: 8.0),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          SizedBox(
            width: 120,
            child: Text(
              label,
              style: const TextStyle(color: Colors.black54, fontSize: 13),
            ),
          ),
          Expanded(
            child: Text(
              value,
              style: const TextStyle(fontWeight: FontWeight.w500, fontSize: 13),
            ),
          ),
        ],
      ),
    );
  }
}

class _ProfileMenuItem extends StatelessWidget {
  final IconData icon;
  final String label;
  final VoidCallback onTap;
  final Color? color;
  const _ProfileMenuItem({
    required this.icon,
    required this.label,
    required this.onTap,
    this.color,
    Key? key,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return InkWell(
      onTap: onTap,
      child: Container(
        padding: const EdgeInsets.symmetric(vertical: 16, horizontal: 8),
        decoration: const BoxDecoration(
          border: Border(bottom: BorderSide(color: Color(0xFFF0F0F0))),
        ),
        child: Row(
          children: [
            Icon(icon, color: color ?? const Color(0xFF4F8DFD)),
            const SizedBox(width: 16),
            Expanded(
              child: Text(
                label,
                style: TextStyle(
                  color: color ?? Colors.black87,
                  fontWeight: FontWeight.w500,
                  fontSize: 15,
                ),
              ),
            ),
            const Icon(Icons.chevron_right, color: Color(0xFFB0B0B0)),
          ],
        ),
      ),
    );
  }
}