import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;
import 'dart:convert';
import '../../../services/auth_service.dart';


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

  @override
  State<KelolaLokasiScreen> createState() => _KelolaLokasiScreenState();
}

class _KelolaLokasiScreenState extends State<KelolaLokasiScreen> {
final String baseUrl = AuthService.baseUrl;
  List<Map<String, dynamic>> lokasiList = [];
  bool isLoading = false;

  final TextEditingController namaController = TextEditingController();

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

  Future<void> fetchLokasi() async {
    try {
      final response = await http.get(Uri.parse("$baseUrl/lokasi"));

      if (response.statusCode == 200) {
        final data = jsonDecode(response.body);
        setState(() {
          lokasiList = List<Map<String, dynamic>>.from(data);
        });
      }
    } catch (e) {
      debugPrint("Error fetch lokasi: $e");
    }
  }

  Future<void> tambahLokasi() async {
    if (namaController.text.isEmpty) return;

    setState(() => isLoading = true);

    try {
      final response = await http.post(
        Uri.parse("$baseUrl/lokasi"),
        headers: {"Content-Type": "application/json"},
        body: jsonEncode({"nama_lokasi": namaController.text}),
      );

      if (response.statusCode == 201) {
        Navigator.pop(context);
        clearForm();
        fetchLokasi();
      }
    } catch (e) {
      debugPrint("Error tambah lokasi: $e");
    }

    setState(() => isLoading = false);
  }

  Future<void> updateLokasi(int id) async {
    if (namaController.text.isEmpty) return;

    setState(() => isLoading = true);

    try {
      final response = await http.put(
        Uri.parse("$baseUrl/lokasi/$id"),
        headers: {"Content-Type": "application/json"},
        body: jsonEncode({"nama_lokasi": namaController.text}),
      );

      if (response.statusCode == 200) {
        Navigator.pop(context);
        clearForm();
        fetchLokasi();
      }
    } catch (e) {
      debugPrint("Error update lokasi: $e");
    }

    setState(() => isLoading = false);
  }

  Future<void> hapusLokasi(int id) async {
    try {
      await http.delete(Uri.parse("$baseUrl/lokasi/$id"));
      fetchLokasi();
    } catch (e) {
      debugPrint("Error hapus lokasi: $e");
    }
  }

  void clearForm() {
    namaController.clear();
  }

  void showForm({Map<String, dynamic>? lokasi}) {
    if (lokasi != null) {
      namaController.text = lokasi['nama_lokasi'];
    }

    showDialog(
      context: context,
      builder:
          (_) => AlertDialog(
            title: Text(lokasi == null ? "Tambah Lokasi" : "Edit Lokasi"),
            content: TextField(
              controller: namaController,
              decoration: const InputDecoration(
                labelText: "Nama Lokasi",
                border: OutlineInputBorder(),
              ),
            ),
            actions: [
              TextButton(
                onPressed: () {
                  Navigator.pop(context);
                  clearForm();
                },
                child: const Text("Batal"),
              ),
              ElevatedButton(
                onPressed:
                    isLoading
                        ? null
                        : () {
                          if (lokasi == null) {
                            tambahLokasi();
                          } else {
                            updateLokasi(lokasi['id']);
                          }
                        },
                child: Text(lokasi == null ? "Simpan" : "Update"),
              ),
            ],
          ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text("Kelola Lokasi"),
        backgroundColor: const Color(0xFF2F5BEA),
      ),
      body:
          isLoading
              ? const Center(child: CircularProgressIndicator())
              : ListView.builder(
                padding: const EdgeInsets.all(16),
                itemCount: lokasiList.length,
                itemBuilder: (context, index) {
                  final lokasi = lokasiList[index];

                  return Card(
                    child: ListTile(
                      title: Text(lokasi['nama_lokasi']),
                      trailing: Row(
                        mainAxisSize: MainAxisSize.min,
                        children: [
                          IconButton(
                            icon: const Icon(Icons.edit, color: Colors.orange),
                            onPressed: () => showForm(lokasi: lokasi),
                          ),
                          IconButton(
                            icon: const Icon(Icons.delete, color: Colors.red),
                            onPressed: () => hapusLokasi(lokasi['id']),
                          ),
                        ],
                      ),
                    ),
                  );
                },
              ),
      floatingActionButton: FloatingActionButton(
        backgroundColor: const Color(0xFF2F5BEA),
        onPressed: () => showForm(),
        child: const Icon(Icons.add),
      ),
    );
  }
}