TKK_E32230332/lib/pages/home_page.dart

435 lines
16 KiB
Dart

import 'dart:io';
import 'package:intl/intl.dart';
import 'package:flutter/material.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:firebase_database/firebase_database.dart';
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:excel/excel.dart';
import 'package:path_provider/path_provider.dart';
import 'package:permission_handler/permission_handler.dart';
import 'rfid/nilai_praktik.dart';
import 'riwayat_page.dart';
class HomePage extends StatefulWidget {
const HomePage({super.key});
@override
State<HomePage> createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
// 🎨 THEME WARNA BARU (SESUAI PERMINTAAN)
static const Color primaryColor = Color(0xff4E7C34);
static const Color secondaryColor = Color(0xff6A994E);
static const Color backgroundColor = Color(0xffFFF8E8);
// 🔥 EXPORT EXCEL
Future<void> exportToExcel() async {
if (!mounted) return;
try {
final storagePermission = await Permission.storage.request();
if (!storagePermission.isGranted) {
if (!mounted) return;
ScaffoldMessenger.of(
context,
).showSnackBar(const SnackBar(content: Text("Izin penyimpanan belum diberikan")));
return;
}
final snapshot = await FirebaseDatabase.instance.ref("cards").get();
if (!snapshot.exists || snapshot.value == null) {
if (!mounted) return;
ScaffoldMessenger.of(
context,
).showSnackBar(const SnackBar(content: Text("Data kosong")));
return;
}
final data = Map<String, dynamic>.from(snapshot.value as Map);
final excel = Excel.createExcel();
final Sheet sheet = excel['Nilai'];
sheet.appendRow([
TextCellValue('UID'),
TextCellValue('Nama'),
TextCellValue('Nilai'),
TextCellValue('Tanggal & Jam'),
]);
for (final entry in data.entries) {
final uid = entry.key;
final card = Map<String, dynamic>.from(entry.value as Map);
final nilai = card['nilai'] ?? 0;
final historySnapshot = await FirebaseDatabase.instance
.ref("history/$uid")
.get();
String tanggalJam = "-";
if (historySnapshot.exists && historySnapshot.value != null) {
final historyData = Map<String, dynamic>.from(
historySnapshot.value as Map,
);
final historyList = historyData.entries
.map((item) => Map<String, dynamic>.from(item.value as Map))
.toList();
historyList.sort((a, b) {
final aTime = ((a['timestamp'] ?? 0) as num).toInt();
final bTime = ((b['timestamp'] ?? 0) as num).toInt();
return bTime.compareTo(aTime);
});
if (historyList.isNotEmpty) {
final lastHistory = historyList.first;
final timestamp = (lastHistory['timestamp'] as num?)?.toInt() ?? 0;
if (timestamp > 0) {
final date = DateTime.fromMillisecondsSinceEpoch(timestamp);
tanggalJam =
"${DateFormat('dd-MM-yyyy').format(date)} ${DateFormat('HH:mm:ss').format(date)}";
}
}
}
sheet.appendRow([
TextCellValue(uid),
TextCellValue(card['name'] ?? '-'),
IntCellValue(nilai),
TextCellValue(tanggalJam),
]);
}
Directory directory;
if (Platform.isAndroid) {
final downloadsDir = Directory('/storage/emulated/0/Download');
if (await downloadsDir.exists()) {
directory = downloadsDir;
} else {
final appDir = await getApplicationDocumentsDirectory();
directory = appDir;
}
} else {
directory = await getApplicationDocumentsDirectory();
}
final path =
"${directory.path}/nilai_${DateTime.now().millisecondsSinceEpoch}.xlsx";
final file = File(path);
if (await file.exists()) {
await file.delete();
}
final bytes = excel.encode();
if (bytes != null) {
await file.create(recursive: true);
await file.writeAsBytes(bytes);
}
if (!mounted) return;
ScaffoldMessenger.of(
context,
).showSnackBar(SnackBar(content: Text("Berhasil download:\n$path")));
} catch (e) {
if (!mounted) return;
ScaffoldMessenger.of(
context,
).showSnackBar(SnackBar(content: Text("Error: $e")));
}
}
@override
Widget build(BuildContext context) {
final userUid = FirebaseAuth.instance.currentUser!.uid;
return FutureBuilder<DocumentSnapshot>(
future: FirebaseFirestore.instance.collection("users").doc(userUid).get(),
builder: (context, snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return const Scaffold(
body: Center(child: CircularProgressIndicator()),
);
}
final data = snapshot.data?.data() as Map<String, dynamic>?;
final userName = data?['name'] ?? 'USER';
return Scaffold(
backgroundColor: backgroundColor,
body: SafeArea(
child: Padding(
padding: const EdgeInsets.all(16),
child: Column(
children: [
// 🔥 HEADER
Container(
width: double.infinity,
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
gradient: LinearGradient(
colors: [
backgroundColor,
secondaryColor.withOpacity(0.15),
],
),
borderRadius: BorderRadius.circular(24),
),
child: Row(
children: [
Container(
width: 70,
height: 70,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(18),
color: Colors.white,
),
child: const Padding(
padding: EdgeInsets.all(8),
child: Image(image: AssetImage("assets/logo.png")),
),
),
const SizedBox(width: 14),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
"HALO, ${userName.toUpperCase()}",
style: const TextStyle(
fontWeight: FontWeight.bold,
fontSize: 22,
color: primaryColor,
),
),
const SizedBox(height: 6),
const Text(
"Monitoring Nilai Papan Pembelajaran",
style: TextStyle(
fontSize: 15,
fontWeight: FontWeight.bold,
color: secondaryColor,
),
),
const SizedBox(height: 6),
const Text(
"Silahkan Daftarkan Nama Siswa di Halaman Kartu",
style: TextStyle(
fontSize: 13,
color: Colors.black87,
),
),
],
),
),
],
),
),
const SizedBox(height: 20),
// 🔥 BUTTON DOWNLOAD
Container(
width: double.infinity,
height: 65,
decoration: BoxDecoration(
gradient: const LinearGradient(
colors: [primaryColor, secondaryColor],
),
borderRadius: BorderRadius.circular(22),
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.1),
blurRadius: 10,
offset: const Offset(0, 5),
),
],
),
child: ElevatedButton.icon(
onPressed: exportToExcel,
style: ElevatedButton.styleFrom(
backgroundColor: Colors.transparent,
shadowColor: Colors.transparent,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(22),
),
),
icon: const Icon(
Icons.download,
color: Colors.white,
size: 28,
),
label: const Text(
"Unduh Data Nilai Siswa",
style: TextStyle(
color: Colors.white,
fontSize: 17,
fontWeight: FontWeight.bold,
),
),
),
),
const SizedBox(height: 22),
// 🔥 LIST SISWA
Expanded(
child: StreamBuilder(
stream: FirebaseDatabase.instance.ref("cards").onValue,
builder: (context, snapshot) {
if (!snapshot.hasData ||
snapshot.data!.snapshot.value == null) {
return const Center(child: Text("Belum ada data"));
}
final cards = Map<String, dynamic>.from(
snapshot.data!.snapshot.value as Map,
);
final entries = cards.entries.toList();
return ListView.builder(
itemCount: entries.length,
itemBuilder: (context, index) {
final uid = entries[index].key;
final card = Map<String, dynamic>.from(
entries[index].value,
);
return Container(
margin: const EdgeInsets.only(bottom: 10),
padding: const EdgeInsets.all(10),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(20),
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.05),
blurRadius: 8,
offset: const Offset(0, 4),
),
],
),
child: Row(
children: [
Container(
width: 55,
height: 55,
decoration: BoxDecoration(
gradient: const LinearGradient(
colors: [primaryColor, secondaryColor],
),
borderRadius: BorderRadius.circular(18),
),
child: const Icon(
Icons.person,
color: Colors.white,
size: 28,
),
),
const SizedBox(width: 16),
Expanded(
child: Column(
crossAxisAlignment:
CrossAxisAlignment.start,
children: [
Text(
card["name"] ?? "-",
style: const TextStyle(
fontSize: 15,
fontWeight: FontWeight.w600,
),
),
const SizedBox(height: 6),
Text(
"Nilai: ${card['nilai'] ?? 0}",
style: TextStyle(
fontSize: 14,
color: Colors.grey[700],
),
),
],
),
),
Row(
children: [
IconButton(
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (_) =>
RiwayatPage(uid: uid),
),
);
},
icon: const Icon(
Icons.history,
color: primaryColor,
),
),
IconButton(
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (_) => CardDetailPage(
uid: uid,
name: card["name"] ?? "-",
),
),
);
},
icon: const Icon(
Icons.arrow_forward_ios,
size: 18,
color: secondaryColor,
),
),
],
),
],
),
);
},
);
},
),
),
],
),
),
),
);
},
);
}
}