Sistem-Pakar-Diagnosa-Penya.../frontend/lib/admin/hama_page.dart

277 lines
11 KiB
Dart

import 'package:flutter/material.dart';
import 'package:frontend/api_services/api_services.dart';
import 'tambah_hama_page.dart';
import 'edit_hama_page.dart';
class HamaPage extends StatefulWidget {
@override
_HamaPageState createState() => _HamaPageState();
}
class _HamaPageState extends State<HamaPage> {
final ApiService apiService = ApiService();
List<Map<String, dynamic>> hamaList = [];
@override
void initState() {
super.initState();
_fetchHama();
}
Future<void> _fetchHama() async {
try {
List<Map<String, dynamic>> data = await apiService.getHama();
setState(() {
hamaList = data;
});
} catch (e) {
print("Error fetching data: $e");
}
}
// 🔹 Hapus gejala dari API
void _hapusHama(int id) async {
try {
await apiService.deleteHama(id);
_fetchHama(); // Refresh data setelah hapus
} catch (e) {
print('Error hapus gejala: $e');
}
}
void _konfirmasiHapus(int id) {
showDialog(
context: context,
builder: (context) {
return AlertDialog(
title: Text('Konfirmasi Hapus'),
content: Text('Apakah Anda yakin ingin menghapus gejala ini?'),
actions: [
TextButton(
onPressed: () {
Navigator.pop(context); // Tutup pop-up tanpa menghapus
},
child: Text('Tidak'),
),
ElevatedButton(
onPressed: () {
Navigator.pop(context); // Tutup pop-up
_hapusHama(id); // Lanjutkan proses hapus
},
child: Text('Ya, Hapus'),
style: ElevatedButton.styleFrom(backgroundColor: Colors.red),
),
],
);
},
);
}
//pagination
int currentPage = 0;
int rowsPerPage = 10;
@override
Widget build(BuildContext context) {
int start = currentPage * rowsPerPage;
int end =
(start + rowsPerPage < hamaList.length)
? start + rowsPerPage
: hamaList.length;
List currentPageData = hamaList.sublist(start, end);
return Scaffold(
appBar: AppBar(title: Text('Halaman Hama')),
body: Column(
children: [
SizedBox(height: 20),
Row(
mainAxisAlignment: MainAxisAlignment.end,
children: [
Padding(
padding: const EdgeInsets.only(right: 20.0),
child: ElevatedButton(
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder:
(context) => TambahHamaPage(
onHamaAdded:
_fetchHama, // Panggil fungsi refresh setelah tambah
),
),
);
},
child: Text(
'Tambah Hama',
style: TextStyle(color: Colors.green[200]),
),
),
),
],
),
SizedBox(height: 20),
Expanded(
child: Padding(
padding: const EdgeInsets.all(8.0),
child: SingleChildScrollView(
scrollDirection: Axis.vertical,
child: SingleChildScrollView(
scrollDirection: Axis.horizontal,
child: DataTable(
columnSpacing: 20,
headingRowColor: MaterialStateColor.resolveWith(
(states) => const Color(0xFF9DC08D),
),
columns: [
DataColumn(label: SizedBox(width: 35, child: Text('No'))),
DataColumn(
label: SizedBox(width: 50, child: Text('Kode')),
),
DataColumn(
label: SizedBox(width: 100, child: Text('Nama')),
),
DataColumn(
label: SizedBox(width: 100, child: Text('Deskripsi')),
),
DataColumn(
label: SizedBox(width: 100, child: Text('Penanganan')),
),
DataColumn(
label: SizedBox(width: 50, child: Text('Aksi')),
),
],
rows: [
...currentPageData.map(
(hama) => DataRow(
cells: [
DataCell(
Text((hamaList.indexOf(hama) + 1).toString()),
),
DataCell(Text(hama['kode'] ?? '-')),
DataCell(Text(hama['nama'] ?? '-')),
DataCell(Text(hama['deskripsi'] ?? '-')),
DataCell(Text(hama['penanganan'] ?? '-')),
DataCell(
Row(
children: [
IconButton(
icon: Icon(
Icons.edit,
color: Color(0xFF9DC08D),
),
onPressed: () {
// Parse nilai_pakar dengan aman
double nilaiPakar = 0.0;
if (hama['nilai_pakar'] != null) {
// Coba parse jika string
if (hama['nilai_pakar'] is String) {
try {
String nilaiStr =
hama['nilai_pakar']
.toString()
.trim();
if (nilaiStr.isNotEmpty) {
nilaiPakar = double.parse(
nilaiStr.replaceAll(',', '.'),
);
}
} catch (e) {
print(
"Error parsing nilai_pakar: $e",
);
}
}
// Langsung gunakan jika sudah double
else if (hama['nilai_pakar']
is double) {
nilaiPakar = hama['nilai_pakar'];
}
// Jika int, konversi ke double
else if (hama['nilai_pakar'] is int) {
nilaiPakar =
hama['nilai_pakar'].toDouble();
}
}
Navigator.push(
context,
MaterialPageRoute(
builder:
(context) => EditHamaPage(
idHama:
hama['id'], // pastikan 'hama' adalah Map dari API kamu
namaAwal: hama['nama'] ?? '',
deskripsiAwal:
hama['deskripsi'] ?? '',
penangananAwal:
hama['penanganan'] ?? '',
gambarUrl: hama['foto'] ?? '',
nilai_pakar: nilaiPakar,
onHamaUpdated:
_fetchHama, // fungsi untuk refresh list setelah update
),
),
);
},
),
IconButton(
icon: Icon(Icons.delete, color: Colors.red),
onPressed:
() => _konfirmasiHapus(hama['id']),
),
],
),
),
],
),
),
DataRow(
cells: [
DataCell(Container()),
DataCell(Container()),
DataCell(
Align(
alignment: Alignment.centerRight,
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
IconButton(
icon: Icon(Icons.chevron_left),
onPressed:
currentPage > 0
? () =>
setState(() => currentPage--)
: null,
),
Text(' ${currentPage + 1}'),
IconButton(
icon: Icon(Icons.chevron_right),
onPressed:
(currentPage + 1) * rowsPerPage <
hamaList.length
? () =>
setState(() => currentPage++)
: null,
),
],
),
),
),
DataCell(Container()),
DataCell(Container()),
DataCell(Container()),
],
),
],
),
),
),
),
),
],
),
);
}
}