Tidak Muncul sepenuhnya

import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;
import 'package:flutter_barcode_scanner/flutter_barcode_scanner.dart';
import 'package:printer/printer.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Master Barang App',
      home: MasterBarangApp(),
    );
  }
}

class MasterBarangApp extends StatefulWidget {
  @override
  _MasterBarangAppState createState() => _MasterBarangAppState();
}

class _MasterBarangAppState extends State<MasterBarangApp> {
  TextEditingController kodeBarangController = TextEditingController();
  TextEditingController barcodeController = TextEditingController();
  TextEditingController namaBarangController = TextEditingController();
  TextEditingController hargaJualController = TextEditingController();
  TextEditingController qtyController = TextEditingController();
  TextEditingController lokasiController = TextEditingController();

  final String apiUrl =
      "http://192.168.0.1:3000/master_barang"; // Ganti dengan URL backend Anda

  Future<void> fetchProduct(String kodeBarang) async {
    final response = await http.get(Uri.parse('$apiUrl/$kodeBarang'));

    if (response.statusCode == 200) {
      final product = json.decode(response.body);
      if (product != null) {
        setState(() {
          kodeBarangController.text = product['kodeBarang'] ?? '';
          barcodeController.text = product['barcode'] ?? '';
          namaBarangController.text = product['namaBarang'] ?? '';
          hargaJualController.text = (product['hargaJual'] ?? '').toString();
          qtyController.text = (product['qty'] ?? '').toString();
          lokasiController.text = product['lokasi'] ?? '';
          /*print('Response Body: ${response.body}');
          print('Product Object: $product');
          print('Type of namaBarang: ${product['namaBarang'].runtimeType}');
          print('Type of hargaJual: ${product['hargaJual'].runtimeType}');*/
        });
      } else {
        clearControllers();
      }
    }
  }

  Future<void> addProduct() async {
    await http.post(
      Uri.parse(apiUrl),
      headers: {"Content-Type": "application/json"},
      body: json.encode({
        "kodeBarang": kodeBarangController.text,
        "barcode": barcodeController.text,
        "namaBarang": namaBarangController.text,
        "hargaJual": hargaJualController.text,
        "qty": qtyController.text,
        "lokasi": lokasiController.text,
      }),
    );
    clearControllers();
    kodeBarangController.clear();
  }

  Future<void> deleteProduct() async {
    await http.delete(
      Uri.parse('$apiUrl/${kodeBarangController.text}'),
    );
    clearControllers();
    kodeBarangController.clear();
  }

  void clearControllers() {
    barcodeController.clear();
    namaBarangController.clear();
    hargaJualController.clear();
    qtyController.clear();
    lokasiController.clear();
  }

  Future<void> printBarcode() async {
    // Implement your barcode printing logic here
    // This could involve using a third-party library or a native plugin
    // to communicate with a barcode printer.
    // For example, you might use the `esc_pos` package:
    // https://pub.dev/packages/esc_pos
    print('Printing barcode for ${kodeBarangController.text}');
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Master Barang'),
      ),
      body: SingleChildScrollView(
        child: Padding(
          padding: const EdgeInsets.all(16.0),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: [
              TextField(
                controller: kodeBarangController,
                decoration: InputDecoration(labelText: 'Kode Barang'),
              ),
              ElevatedButton(
                onPressed: () async {
                  if (kodeBarangController.text != null) {
                    await fetchProduct(kodeBarangController.text);
                  }
                },
                child: Text('Cari'),
              ),
              TextField(
                controller: barcodeController,
                decoration: InputDecoration(labelText: 'Barcode'),
              ),
              TextField(
                controller: namaBarangController,
                decoration: InputDecoration(labelText: 'Nama Barang'),
              ),
              TextField(
                controller: hargaJualController,
                decoration: InputDecoration(labelText: 'Harga Jual'),
              ),
              TextField(
                controller: qtyController,
                decoration: InputDecoration(labelText: 'Qty'),
              ),
              TextField(
                controller: lokasiController,
                decoration: InputDecoration(labelText: 'Lokasi'),
              ),
              ElevatedButton(
                onPressed: addProduct,
                child: Text('Simpan'),
              ),
              if (qtyController.text == '0' || qtyController.text.isEmpty)
                ElevatedButton(
                  onPressed: deleteProduct,
                  child: Text('Hapus'),
                ),
              ElevatedButton(
                onPressed: printBarcode,
                child: Text('Cetak Barcode'),
              ),
            ],
          ),
        ),
      ),
    );
  }
}