manifest_pdf.dart

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import 'dart:convert';
import 'dart:developer';
import 'dart:io';
 
import 'package:flutter/services.dart';
import 'package:open_file/open_file.dart';
import 'package:path_provider/path_provider.dart';
import 'package:pdf/pdf.dart';
import 'package:pdf/widgets.dart' as pw;
 
import '../../common/models/manifest_document.dart';
import '../../constants/assets.dart';
import '../../services/user_info_service.dart';
 
Future generateManifest(
  ManifestDocument manifest,
) async {
  final pdf = pw.Document();
 
  pw.MemoryImage? signatureImage;
  try {
    final String? signatureBase64 =
        UserInfoService.instance.userInfo?.signature;
    if (signatureBase64 != null && signatureBase64.isNotEmpty) {
      final Uint8List signatureData = base64Decode(signatureBase64);
      signatureImage = pw.MemoryImage(signatureData);
    }
  } catch (e) {
    log('Error loading signature: $e');
  }
 
  // Load the logo image
  final ByteData logoBytes = await rootBundle.load(Assets.tajmielogo);
  final Uint8List logoData = logoBytes.buffer.asUint8List();
  final pw.MemoryImage logoImage = pw.MemoryImage(logoData);
 
  // Define colors
  final PdfColor headerBlue = PdfColor.fromInt(0xFFB3D7EA);
  // Load custom font with Unicode support
  final fontData = await rootBundle.load('assets/fonts/cairo_regular_font.ttf');
  final ttf = pw.Font.ttf(fontData);
 
  final theme = pw.ThemeData.withFont(
    base: ttf,
    bold: ttf,
    italic: ttf,
    boldItalic: ttf,
  );
 
  String formatDate(DateTime? date) {
    if (date == null) return '--';
    return '${date.day}/${date.month}/${date.year}';
  }
 
  pdf.addPage(
    pw.Page(
      theme: theme,
      pageFormat: PdfPageFormat.a4,
      margin: const pw.EdgeInsets.all(20),
      build: (context) => pw.Column(
        crossAxisAlignment: pw.CrossAxisAlignment.start,
        children: [
          // Header with logo and title
          pw.Row(
            mainAxisAlignment: pw.MainAxisAlignment.spaceBetween,
            children: [
              pw.Image(logoImage, width: 80, height: 80),
              pw.Column(
                crossAxisAlignment: pw.CrossAxisAlignment.center,
                children: [
                  pw.Text(
                    'Waste Electronic Manifest',
                    style: pw.TextStyle(
                      fontSize: 16,
                      fontWeight: pw.FontWeight.bold,
                    ),
                  ),
                  pw.Text(
                    '(E-Manifest)',
                    style: pw.TextStyle(
                      fontSize: 14,
                      fontWeight: pw.FontWeight.bold,
                    ),
                  ),
                ],
              ),
              pw.Column(
                crossAxisAlignment: pw.CrossAxisAlignment.end,
                children: [
                  pw.Row(
                    children: [
                      pw.Text('Document No: ',
                          style: pw.TextStyle(fontSize: 10)),
                      pw.Text('${manifest.id}',
                          style:
                              pw.TextStyle(fontSize: 10, color: PdfColors.red)),
                    ],
                  ),
                  // pw.Text(
                  //   'Status : ${adaptstatus(status: manifest.status ?? '')}',
                  //   style: pw.TextStyle(fontSize: 10),
                  // ),
                  pw.SizedBox(height: 5),
                  pw.Container(
                    width: 50,
                    height: 50,
                    child: pw.BarcodeWidget(
                      barcode: pw.Barcode.qrCode(),
                      data:
                          'WASTE E-MANIFEST - Document No: ${manifest.id} - origin: Aidra Connect',
                    ),
                  ),
                ],
              ),
            ],
          ),
          pw.SizedBox(height: 20),
 
          // Part A header
          pw.Container(
            width: double.infinity,
            color: headerBlue,
            padding: const pw.EdgeInsets.symmetric(vertical: 5, horizontal: 10),
            child: pw.Text(
              'Part - A : Waste Generator Information',
              style: pw.TextStyle(
                fontSize: 12,
                fontWeight: pw.FontWeight.bold,
              ),
            ),
          ),
 
          // Generator info table
          _buildGeneratorInfoTable(manifest),
 
          // Transporter info
          pw.Container(
            padding: const pw.EdgeInsets.symmetric(horizontal: 10, vertical: 5),
            child: pw.Column(
              crossAxisAlignment: pw.CrossAxisAlignment.start,
              children: [
                pw.Text(
                  '4. Transporter\'s Name :',
                  style: pw.TextStyle(
                      fontSize: 10, fontWeight: pw.FontWeight.bold),
                ),
                pw.SizedBox(height: 3),
                pw.Padding(
                  padding: const pw.EdgeInsets.only(left: 20),
                  child: pw.Column(
                    crossAxisAlignment: pw.CrossAxisAlignment.start,
                    children: [
                      pw.Text(
                        'Mailing Address:',
                        style: pw.TextStyle(fontSize: 10),
                      ),
                      pw.SizedBox(height: 3),
                      pw.Row(
                        children: [
                          pw.Expanded(
                            child: pw.Text(
                              'Tel. No:',
                              style: pw.TextStyle(fontSize: 10),
                            ),
                          ),
                          pw.Expanded(
                            child: pw.Text(
                              'Person to Contact:',
                              style: pw.TextStyle(fontSize: 10),
                            ),
                          ),
                        ],
                      ),
                    ],
                  ),
                ),
              ],
            ),
          ),
 
          // Shipping info table
          pw.SizedBox(height: 10),
          _buildShippingTable(manifest),
          pw.SizedBox(height: 15),
 
          // Generator's certification
          pw.Container(
            padding: const pw.EdgeInsets.symmetric(horizontal: 10, vertical: 5),
            child: pw.Column(
              crossAxisAlignment: pw.CrossAxisAlignment.start,
              children: [
                pw.Text(
                  '10. Generator\'s Certification: I hereby declare that the containers of this consignment are fully',
                  style: pw.TextStyle(fontSize: 10),
                ),
                pw.Text(
                  'and accurately described above by proper shipping name and classified, packed, and labelled,',
                  style: pw.TextStyle(fontSize: 10),
                ),
                pw.Text(
                  'and are in all respect in proper condition for transport by highway according to applicable laws',
                  style: pw.TextStyle(fontSize: 10),
                ),
                pw.Text(
                  'and regulations of the kingdom.',
                  style: pw.TextStyle(fontSize: 10),
                ),
                pw.SizedBox(height: 15),
                pw.Row(
                  mainAxisAlignment: pw.MainAxisAlignment.spaceBetween,
                  children: [
                    pw.Text(
                      'Name of the Authorized Representative :',
                      style: pw.TextStyle(fontSize: 10),
                    ),
                    pw.Padding(
                      padding: const pw.EdgeInsets.only(right: 50),
                      child: pw.Text(
                          'Date: ${formatDate(manifest.collectionDate)}',
                          style: pw.TextStyle(fontSize: 9)),
                    ),
                  ],
                ),
                pw.SizedBox(height: 8),
                pw.Text(
                  'Signature :',
                  style: pw.TextStyle(fontSize: 10),
                ),
              ],
            ),
          ),
 
          // Powered by footer
          pw.Spacer(),
          pw.Align(
            alignment: pw.Alignment.bottomRight,
            child: pw.Column(
              crossAxisAlignment: pw.CrossAxisAlignment.end,
              children: [
                pw.Text(
                  'POWERED BY',
                  style: pw.TextStyle(fontSize: 8, color: PdfColors.grey),
                ),
                pw.Text(
                  'aidra®',
                  style: pw.TextStyle(fontSize: 8, color: PdfColors.grey),
                ),
              ],
            ),
          ),
        ],
      ),
    ),
  );
 
  // Second page - matching Image 2
  pdf.addPage(
    pw.Page(
      theme: theme,
      pageFormat: PdfPageFormat.a4,
      margin: const pw.EdgeInsets.all(20),
      build: (context) => pw.Column(
        crossAxisAlignment: pw.CrossAxisAlignment.start,
        children: [
          // Header with logo and title (same as first page)
          pw.Row(
            mainAxisAlignment: pw.MainAxisAlignment.spaceBetween,
            children: [
              pw.Image(logoImage, width: 80, height: 80),
              pw.Column(
                crossAxisAlignment: pw.CrossAxisAlignment.center,
                children: [
                  pw.Text(
                    'Waste Electronic Manifest',
                    style: pw.TextStyle(
                      fontSize: 16,
                      fontWeight: pw.FontWeight.bold,
                    ),
                  ),
                  pw.Text(
                    '(E-Manifest)',
                    style: pw.TextStyle(
                      fontSize: 14,
                      fontWeight: pw.FontWeight.bold,
                    ),
                  ),
                ],
              ),
              pw.Column(
                crossAxisAlignment: pw.CrossAxisAlignment.end,
                children: [
                  pw.Row(
                    children: [
                      pw.Text('Document No. ',
                          style: pw.TextStyle(fontSize: 10)),
                      pw.Text('${manifest.id}',
                          style:
                              pw.TextStyle(fontSize: 10, color: PdfColors.red)),
                    ],
                  ),
                  // pw.Text(
                  //   'Status : ${adaptstatus(status: manifest.status ?? '')}',
                  //   style: pw.TextStyle(fontSize: 10),
                  // ),
                  pw.SizedBox(height: 5),
                  pw.Container(
                    width: 50,
                    height: 50,
                    child: pw.BarcodeWidget(
                      barcode: pw.Barcode.qrCode(),
                      data:
                          //   'WASTE E-MANIFEST - Document No: ${manifest.id} - Status: ${adaptstatus(status: manifest.status ?? '')} - origin: Aidra Connect',
                          'WASTE E-MANIFEST - Document No: ${manifest.id} - origin: Aidra Drive',
                    ),
                  ),
                ],
              ),
            ],
          ),
          pw.SizedBox(height: 20),
 
          // Part B header
          pw.Container(
            width: double.infinity,
            color: headerBlue,
            padding: const pw.EdgeInsets.symmetric(vertical: 5, horizontal: 10),
            child: pw.Text(
              'Part - B : Transporter Informations',
              style: pw.TextStyle(
                fontSize: 12,
                fontWeight: pw.FontWeight.bold,
              ),
            ),
          ),
 
          // Transporter acknowledgment
          pw.Container(
            padding: const pw.EdgeInsets.all(10),
            child: pw.Column(
              crossAxisAlignment: pw.CrossAxisAlignment.start,
              children: [
                pw.Row(
                  mainAxisAlignment: pw.MainAxisAlignment.spaceBetween,
                  children: [
                    pw.Text(
                      '11. Transporter\'s Acknowledgment of Receipt of Materials',
                      style: pw.TextStyle(fontSize: 10),
                    ),
                    pw.Text(
                      'Date: ${formatDate(manifest.unloadingDate)}',
                      style: pw.TextStyle(fontSize: 10),
                    ),
                  ],
                ),
                pw.SizedBox(height: 20),
                pw.Row(
                  mainAxisAlignment: pw.MainAxisAlignment.spaceBetween,
                  children: [
                    pw.Text(
                      'Driver Name: ${manifest.driver?.name ?? ''}',
                      style: pw.TextStyle(fontSize: 10),
                    ),
                    pw.Text(
                      'Vehicle Plate No. ${manifest.vehiclePlate ?? ''}',
                      style: pw.TextStyle(fontSize: 10),
                    ),
                  ],
                ),
                pw.SizedBox(height: 15),
                pw.Text(
                  'Signature of Drive:',
                  style: pw.TextStyle(fontSize: 10),
                ),
                pw.SizedBox(height: 5),
                signatureImage != null
                    ? pw.Container(
                        height: 40,
                        width: 100,
                        child: pw.Image(signatureImage),
                      )
                    : pw.Container(
                        height: 20,
                        width: 100,
                        decoration: pw.BoxDecoration(
                          border: pw.Border(
                            bottom: pw.BorderSide(color: PdfColors.black),
                          ),
                        ),
                      ),
              ],
            ),
          ),
 
          pw.SizedBox(height: 20),
 
          // Part C header
          pw.Container(
            width: double.infinity,
            color: headerBlue,
            padding: const pw.EdgeInsets.symmetric(vertical: 5, horizontal: 10),
            child: pw.Text(
              'Part - C : Warehouse Facility Information',
              style: pw.TextStyle(
                fontSize: 12,
                fontWeight: pw.FontWeight.bold,
              ),
            ),
          ),
 
          // Facility information
          pw.Container(
            padding: const pw.EdgeInsets.all(10),
            child: pw.Column(
              crossAxisAlignment: pw.CrossAxisAlignment.start,
              children: [
                pw.Text(
                  '12. Discrepancy Indication Space',
                  style: pw.TextStyle(fontSize: 10),
                ),
                pw.SizedBox(height: 20),
                pw.Text(
                  '13. Facility Owner/Operator: certification of material covered by',
                  style: pw.TextStyle(fontSize: 10),
                ),
                pw.Text(
                  'this manifest except as noted in item',
                  style: pw.TextStyle(fontSize: 10),
                ),
                pw.SizedBox(height: 20),
                pw.Row(
                  mainAxisAlignment: pw.MainAxisAlignment.spaceBetween,
                  children: [
                    pw.Text(
                      'Receiver Name',
                      style: pw.TextStyle(fontSize: 10),
                    ),
                    pw.Text(
                      'Date:',
                      style: pw.TextStyle(fontSize: 10),
                    ),
                  ],
                ),
                pw.SizedBox(height: 15),
                pw.Text(
                  'Signature',
                  style: pw.TextStyle(fontSize: 10),
                ),
              ],
            ),
          ),
 
          // Powered by footer
          pw.Spacer(),
          pw.Align(
            alignment: pw.Alignment.bottomRight,
            child: pw.Column(
              crossAxisAlignment: pw.CrossAxisAlignment.end,
              children: [
                pw.Text(
                  'POWERED BY',
                  style: pw.TextStyle(fontSize: 8, color: PdfColors.grey),
                ),
                pw.Text(
                  'aidra®',
                  style: pw.TextStyle(fontSize: 8, color: PdfColors.grey),
                ),
              ],
            ),
          ),
        ],
      ),
    ),
  );
 
  final output = await getTemporaryDirectory();
  final file = File('${output.path}/e_manifest.pdf');
  await file.writeAsBytes(await pdf.save());
 
  OpenFile.open(file.path);
}
 
// Function to create the generator info table
pw.Widget _buildGeneratorInfoTable(ManifestDocument manifest) {
  return pw.Table(
    border: pw.TableBorder.all(color: PdfColors.black),
    columnWidths: {
      0: const pw.FlexColumnWidth(1),
      1: const pw.FlexColumnWidth(1),
      2: const pw.FlexColumnWidth(1),
    },
    children: [
      // Header row
      pw.TableRow(
        children: [
          pw.Padding(
            padding: const pw.EdgeInsets.all(5),
            child: pw.Text(
              '1.Generator ID. No',
              style: pw.TextStyle(fontSize: 10),
            ),
          ),
          pw.Padding(
            padding: const pw.EdgeInsets.all(5),
            child: pw.Text(
              '2. Generator\'S Name',
              style: pw.TextStyle(fontSize: 10),
            ),
          ),
          pw.Padding(
            padding: const pw.EdgeInsets.all(5),
            child: pw.Text(
              '3. Generator\'s Address, Phone No. and Person To Contact',
              style: pw.TextStyle(fontSize: 10),
            ),
          ),
        ],
      ),
      // Empty rows for data
      ...manifest.collectionVoucher!.map((voucher) => pw.TableRow(
            children: [
              pw.Padding(
                padding: const pw.EdgeInsets.all(5),
                child: pw.Text(
                  voucher.id.toString(),
                  style: pw.TextStyle(fontSize: 10),
                ),
              ),
              pw.Padding(
                padding: const pw.EdgeInsets.all(5),
                child: pw.Text(
                  voucher.collectionPoint ?? '',
                  style: pw.TextStyle(fontSize: 10),
                ),
              ),
              pw.Padding(
                padding: const pw.EdgeInsets.all(5),
                child: pw.Text(
                  voucher.address ?? '',
                  style: pw.TextStyle(fontSize: 10),
                ),
              ),
            ],
          )),
    ],
  );
}
 
// Function to create the shipping info table
pw.Widget _buildShippingTable(ManifestDocument manifest) {
  return pw.Table(
    border: pw.TableBorder.all(color: PdfColors.black),
    columnWidths: {
      0: const pw.FlexColumnWidth(3),
      1: const pw.FlexColumnWidth(2),
      2: const pw.FlexColumnWidth(1),
      3: const pw.FlexColumnWidth(1),
      4: const pw.FlexColumnWidth(1),
    },
    children: [
      // Header row
      pw.TableRow(
        decoration: pw.BoxDecoration(color: PdfColors.blue50),
        children: [
          pw.Padding(
            padding: const pw.EdgeInsets.all(5),
            child: pw.Text(
              '5.(Shipping Name, Hazard Class, and Pin)',
              style: pw.TextStyle(fontSize: 9),
            ),
          ),
          pw.Column(
            children: [
              pw.Container(
                width: double.infinity,
                alignment: pw.Alignment.center,
                padding: const pw.EdgeInsets.all(5),
                child: pw.Text(
                  '6.Containers',
                  style: pw.TextStyle(fontSize: 9),
                ),
              ),
              pw.Table(
                border: pw.TableBorder(
                  top: pw.BorderSide(color: PdfColors.black),
                  horizontalInside: pw.BorderSide(color: PdfColors.black),
                  verticalInside: pw.BorderSide(color: PdfColors.black),
                ),
                columnWidths: {
                  0: const pw.FlexColumnWidth(1),
                  1: const pw.FlexColumnWidth(1),
                },
                children: [
                  pw.TableRow(
                    children: [
                      pw.Container(
                        alignment: pw.Alignment.center,
                        padding: const pw.EdgeInsets.all(2),
                        child: pw.Text('No.', style: pw.TextStyle(fontSize: 8)),
                      ),
                      pw.Container(
                        alignment: pw.Alignment.center,
                        padding: const pw.EdgeInsets.all(2),
                        child:
                            pw.Text('Type', style: pw.TextStyle(fontSize: 8)),
                      ),
                    ],
                  ),
                ],
              ),
            ],
          ),
          pw.Container(
            alignment: pw.Alignment.center,
            padding: const pw.EdgeInsets.all(5),
            child: pw.Text(
              '7.Total Qty',
              style: pw.TextStyle(fontSize: 9),
            ),
          ),
          pw.Container(
            alignment: pw.Alignment.center,
            padding: const pw.EdgeInsets.all(5),
            child: pw.Text(
              '8. Unit Et/Vol',
              style: pw.TextStyle(fontSize: 9),
            ),
          ),
          pw.Container(
            alignment: pw.Alignment.center,
            padding: const pw.EdgeInsets.all(5),
            child: pw.Text(
              '9.WPS No',
              style: pw.TextStyle(fontSize: 9),
            ),
          ),
        ],
      ),
      // Empty data row
 
      pw.TableRow(
        children: [
          pw.Container(
            padding: pw.EdgeInsets.only(left: 10),
            height: 25,
            child: pw.Text(manifest.productName?.get('en_US') ?? ''),
          ),
          pw.Table(
            border: pw.TableBorder(
              verticalInside: pw.BorderSide(color: PdfColors.black),
            ),
            columnWidths: {
              0: const pw.FlexColumnWidth(1),
              1: const pw.FlexColumnWidth(1),
            },
            children: [
              pw.TableRow(
                children: [
                  pw.Container(
                      height: 25,
                      padding: pw.EdgeInsets.only(left: 10),
                      child: pw.Text('${manifest.containerNumber}')),
                  pw.Container(
                      padding: pw.EdgeInsets.only(left: 10),
                      height: 25,
                      child: pw.Text('${manifest.containerType}')),
                ],
              ),
            ],
          ),
          pw.Container(
              padding: pw.EdgeInsets.only(left: 10),
              height: 25,
              child: pw.Text('${manifest.totalQuantity ?? ''}')),
          pw.Container(
              padding: pw.EdgeInsets.only(left: 10),
              height: 25,
              child: pw.Text(
                '  L',
              )),
          pw.Container(
              padding: pw.EdgeInsets.only(left: 10),
              height: 25,
              child: pw.Text('')),
        ],
      ),
    ],
  );
}