import 'dart:async';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_easyloading/flutter_easyloading.dart';
import 'package:intl/intl.dart';
import 'package:mobile_pos/Const/api_config.dart';
import 'package:mobile_pos/PDF%20Invoice/universal_image_widget.dart';
import 'package:mobile_pos/constant.dart';
import 'package:mobile_pos/generated/l10n.dart' as l;
import 'package:nb_utils/nb_utils.dart';
import 'package:pdf/pdf.dart';
import 'package:pdf/widgets.dart' as pw;
import 'package:printing/printing.dart';

import '../Screens/Due Calculation/Model/due_collection_model.dart';
import '../model/business_info_model.dart';
import 'pdf_common_functions.dart';

class DueInvoicePDF {
  static Future<void> generateDueDocument(
    DueCollection transactions,
    BusinessInformationModel personalInformation,
    BuildContext context, {
    bool? isShare,
    bool? download,
    bool? showPreview,
  }) async {
    final pw.Document doc = pw.Document();
    final _lang = l.S.of(context);
    // Load the image as bytes
    EasyLoading.show(status: _lang.generatingPdf);

    final String imageUrl =
        '${APIConfig.domain}${(personalInformation.data?.showA4InvoiceLogo == 1) ? personalInformation.data?.a4InvoiceLogo : ''}';
    dynamic imageData = await PDFCommonFunctions().getNetworkImage(imageUrl);
    imageData ??= (personalInformation.data?.showA4InvoiceLogo == 1)
        ? await PDFCommonFunctions().loadAssetImage('images/logo.png')
        : null;
    final englishFont = pw.Font.ttf(await rootBundle.load('fonts/NotoSans/NotoSans-Regular.ttf'));
    final englishBold = pw.Font.ttf(await rootBundle.load('fonts/NotoSans/NotoSans-Medium.ttf'));
    final banglaFont = pw.Font.ttf(await rootBundle.load('assets/fonts/siyam_rupali_ansi.ttf'));
    final arabicFont = pw.Font.ttf(await rootBundle.load('assets/fonts/Amiri-Regular.ttf'));
    final hindiFont = pw.Font.ttf(await rootBundle.load('assets/fonts/Hind-Regular.ttf'));
    final frenchFont = pw.Font.ttf(await rootBundle.load('assets/fonts/GFSDidot-Regular.ttf'));

    // Helper function
    pw.Font getFont({bool bold = false}) {
      switch (selectedLanguage) {
        case 'en':
          return bold ? englishBold : englishFont;
        case 'bn':
          // Bold not available, fallback to regular
          return banglaFont;
        case 'ar':
          return arabicFont;
        case 'hi':
          return hindiFont;
        case 'fr':
          return frenchFont;
        default:
          return bold ? englishBold : englishFont;
      }
    }

    getFontWithLangMatching(String data) {
      String detectedLanguage = detectLanguageEnhanced(data);
      if (detectedLanguage == 'en') {
        return englishFont;
      } else if (detectedLanguage == 'bn') {
        return banglaFont;
      } else if (detectedLanguage == 'ar') {
        return arabicFont;
      } else if (detectedLanguage == 'hi') {
        return hindiFont;
      } else if (detectedLanguage == 'fr') {
        return frenchFont;
      } else {
        return englishFont;
      }
    }

    final bankTransactions =
        transactions.transactions?.where((t) => t.transactionType == 'bank_payment').toList() ?? [];

    final latestBankTransaction = bankTransactions.isNotEmpty ? bankTransactions.last : null;

    final showWarranty = personalInformation.data?.showWarranty == 1 &&
        (personalInformation.data?.warrantyVoidLabel != null || personalInformation.data?.warrantyVoid != null);

    doc.addPage(
      pw.MultiPage(
        pageFormat: PdfPageFormat.letter.copyWith(marginBottom: 1.5 * PdfPageFormat.cm),
        margin: pw.EdgeInsets.zero,
        crossAxisAlignment: pw.CrossAxisAlignment.start,
        header: (pw.Context context) {
          return pw.Padding(
            padding: const pw.EdgeInsets.all(20.0),
            child: pw.Column(
              children: [
                pw.Row(
                  mainAxisAlignment: pw.MainAxisAlignment.spaceBetween,
                  children: [
                    pw.Container(
                      height: 54.12,
                      width: 200,
                      child: universalImage(
                        imageData,
                        w: 200,
                        h: 54.12,
                      ),
                    ),
                    pw.Column(
                      crossAxisAlignment: pw.CrossAxisAlignment.end,
                      children: [
                        if (personalInformation.data?.meta?.showAddress == 1)
                          pw.SizedBox(
                            width: 200,
                            child: pw.Text(
                              '${_lang.address}: ${personalInformation.data?.address ?? ''}',
                              textAlign: pw.TextAlign.end,
                              style: pw.TextStyle(
                                color: PdfColors.black,
                                font: getFont(),
                                fontFallback: [englishFont],
                              ),
                            ),
                          ),
                        if (personalInformation.data?.meta?.showPhoneNumber == 1)
                          pw.SizedBox(
                            width: 200,
                            child: pw.Text(
                              '${_lang.mobile}: ${personalInformation.data?.phoneNumber ?? ''}',
                              textAlign: pw.TextAlign.end,
                              style: pw.TextStyle(
                                color: PdfColors.black,
                                font: getFont(),
                                fontFallback: [englishFont],
                              ),
                            ),
                          ),
                        if (personalInformation.data?.meta?.showEmail == 1)
                          pw.SizedBox(
                            width: 200,
                            child: pw.Text(
                              '${_lang.emailText}: ${personalInformation.data?.invoiceEmail ?? ''}',
                              textAlign: pw.TextAlign.end,
                              style: pw.TextStyle(
                                color: PdfColors.black,
                                font: getFont(),
                                fontFallback: [englishFont],
                              ),
                            ),
                          ),
                        //vat Name
                        if (personalInformation.data?.meta?.showVat == 1)
                          if (personalInformation.data?.vatNo != null && personalInformation.data?.meta?.showVat == 1)
                            pw.SizedBox(
                              width: 200,
                              child: pw.Text(
                                '${personalInformation.data?.vatName ?? _lang.vatNumber}: ${personalInformation.data?.vatNo ?? ''}',
                                textAlign: pw.TextAlign.end,
                                style: pw.TextStyle(
                                  color: PdfColors.black,
                                  font: getFont(),
                                  fontFallback: [englishFont],
                                ),
                              ),
                            ),
                      ],
                    ),
                  ],
                ),
                pw.SizedBox(height: 16.0),
                pw.Center(
                  child: pw.Container(
                    padding: pw.EdgeInsets.symmetric(horizontal: 19, vertical: 10),
                    decoration: pw.BoxDecoration(
                      borderRadius: pw.BorderRadius.circular(20),
                      border: pw.Border.all(color: PdfColors.black),
                    ),
                    child: pw.Text(
                      _lang.INVOICE,
                      style: pw.TextStyle(
                        fontWeight: pw.FontWeight.bold,
                        fontSize: 18,
                        color: PdfColors.black,
                        font: getFont(bold: true),
                      ),
                    ),
                  ),
                ),
                pw.SizedBox(height: 20),
                pw.Row(
                  mainAxisAlignment: pw.MainAxisAlignment.spaceBetween,
                  children: [
                    pw.Column(
                      crossAxisAlignment: pw.CrossAxisAlignment.start,
                      children: [
                        //customer name
                        if (personalInformation.data?.meta?.showCompanyName == 1)
                          pw.Row(
                            children: [
                              pw.SizedBox(
                                width: 60.0,
                                child: getLocalizedPdfText(
                                  _lang.customer,
                                  pw.TextStyle(
                                    color: PdfColors.black,
                                    font: getFont(),
                                    fontFallback: [englishFont],
                                  ),
                                ),
                              ),
                              pw.SizedBox(
                                width: 10.0,
                                child: pw.Text(
                                  ':',
                                  style: pw.Theme.of(context).defaultTextStyle.copyWith(color: PdfColors.black),
                                ),
                              ),
                              pw.SizedBox(
                                width: 100.0,
                                child: getLocalizedPdfTextWithLanguage(
                                  transactions.party?.name ?? '',
                                  pw.TextStyle(
                                    color: PdfColors.black,
                                    font: getFontWithLangMatching(transactions.party?.name ?? ''),
                                    fontFallback: [englishFont],
                                  ),
                                ),
                              ),
                            ],
                          ),
                        //Address
                        if (personalInformation.data?.meta?.showAddress == 1)
                          pw.Row(
                            children: [
                              pw.SizedBox(
                                width: 60.0,
                                child: getLocalizedPdfText(
                                  _lang.address,
                                  pw.TextStyle(
                                    color: PdfColors.black,
                                    font: getFont(),
                                    fontFallback: [englishFont],
                                  ),
                                ),
                              ),
                              pw.SizedBox(
                                width: 10.0,
                                child: pw.Text(
                                  ':',
                                  style: pw.Theme.of(context).defaultTextStyle.copyWith(color: PdfColors.black),
                                ),
                              ),
                              pw.SizedBox(
                                width: 150.0,
                                child: getLocalizedPdfTextWithLanguage(
                                  transactions.party?.address ?? 'N/a',
                                  pw.TextStyle(
                                    color: PdfColors.black,
                                    font: getFontWithLangMatching(transactions.party?.address ?? ''),
                                    fontFallback: [englishFont],
                                  ),
                                ),
                              ),
                            ],
                          ),
                        //mobile
                        if (personalInformation.data?.meta?.showPhoneNumber == 1)
                          pw.Row(
                            children: [
                              pw.SizedBox(
                                width: 60.0,
                                child: getLocalizedPdfText(
                                  _lang.mobile,
                                  pw.TextStyle(
                                    color: PdfColors.black,
                                    font: getFont(),
                                    fontFallback: [englishFont],
                                  ),
                                ),
                              ),
                              pw.SizedBox(
                                width: 10.0,
                                child: pw.Text(
                                  ':',
                                  style: pw.Theme.of(context).defaultTextStyle.copyWith(color: PdfColors.black),
                                ),
                              ),
                              pw.SizedBox(
                                width: 100.0,
                                child: getLocalizedPdfText(
                                  transactions.party?.phone ?? (transactions.party?.phone ?? _lang.guest),
                                  pw.TextStyle(font: getFont(), fontFallback: [englishFont]),
                                ),
                              ),
                            ],
                          ),
                        //Remarks
                        if (personalInformation.data?.showNote == 1)
                          pw.Row(
                            children: [
                              pw.SizedBox(
                                width: 60.0,
                                child: getLocalizedPdfText(
                                  _lang.remark,
                                  pw.TextStyle(
                                    color: PdfColors.black,
                                    font: getFont(),
                                    fontFallback: [englishFont],
                                  ),
                                ),
                              ),
                              pw.SizedBox(
                                width: 10.0,
                                child: pw.Text(
                                  ':',
                                  style: pw.Theme.of(context).defaultTextStyle.copyWith(color: PdfColors.black),
                                ),
                              ),
                              pw.SizedBox(
                                width: 100.0,
                                child: getLocalizedPdfText(
                                  personalInformation.data?.invoiceNote ?? 'N/A',
                                  pw.TextStyle(font: getFont(), fontFallback: [englishFont]),
                                ),
                              ),
                            ],
                          ),
                      ],
                    ),
                    pw.Column(
                      children: [
                        //Invoice Number
                        pw.Row(
                          children: [
                            pw.SizedBox(
                              width: 100.0,
                              child: getLocalizedPdfText(
                                _lang.invoiceNumber,
                                pw.TextStyle(
                                  color: PdfColors.black,
                                  font: getFont(),
                                  fontFallback: [englishFont],
                                ),
                              ),
                            ),
                            pw.SizedBox(
                              width: 10.0,
                              child: pw.Text(
                                ':',
                                style: pw.Theme.of(context).defaultTextStyle.copyWith(color: PdfColors.black),
                              ),
                            ),
                            pw.SizedBox(
                              width: 75.0,
                              child: pw.Text(
                                '#${transactions.invoiceNumber}',
                                style: pw.Theme.of(context).defaultTextStyle.copyWith(color: PdfColors.black),
                              ),
                            ),
                          ],
                        ),
                        //date
                        pw.Row(
                          children: [
                            pw.SizedBox(
                              width: 100.0,
                              child: getLocalizedPdfText(
                                _lang.date,
                                pw.TextStyle(
                                  color: PdfColors.black,
                                  font: getFont(),
                                  fontFallback: [englishFont],
                                ),
                              ),
                            ),
                            pw.SizedBox(
                              width: 10.0,
                              child: pw.Text(
                                ':',
                                style: pw.Theme.of(context).defaultTextStyle.copyWith(color: PdfColors.black),
                              ),
                            ),
                            pw.SizedBox(
                              width: 75.0,
                              child: getLocalizedPdfText(
                                DateFormat('d MMM, yyyy').format(DateTime.parse(transactions.paymentDate ?? '')),
                                // DateTimeFormat.format(DateTime.parse(transactions.saleDate ?? ''), format: 'D, M j'),
                                pw.TextStyle(font: getFont(), fontFallback: [englishFont]),
                              ),
                            ),
                          ],
                        ),
                        //Time
                        pw.Row(
                          children: [
                            pw.SizedBox(
                              width: 100.0,
                              child: getLocalizedPdfText(
                                _lang.time,
                                pw.TextStyle(
                                  color: PdfColors.black,
                                  font: getFont(),
                                  fontFallback: [englishFont],
                                ),
                              ),
                            ),
                            pw.SizedBox(
                              width: 10.0,
                              child: pw.Text(
                                ':',
                                style: pw.Theme.of(context).defaultTextStyle.copyWith(color: PdfColors.black),
                              ),
                            ),
                            pw.SizedBox(
                              width: 75.0,
                              child: getLocalizedPdfText(
                                DateFormat('hh:mm a').format(DateTime.parse(transactions.paymentDate!)),
                                pw.TextStyle(font: getFont(), fontFallback: [englishFont]),
                              ),
                            ),
                          ],
                        ),
                        //Sales by
                        pw.Row(
                          children: [
                            pw.SizedBox(
                              width: 100.0,
                              child: getLocalizedPdfText(
                                _lang.collectedBy,
                                pw.TextStyle(
                                  color: PdfColors.black,
                                  font: getFont(),
                                  fontFallback: [englishFont],
                                ),
                              ),
                            ),
                            pw.SizedBox(
                              width: 10.0,
                              child: pw.Text(
                                ':',
                                style: pw.Theme.of(context).defaultTextStyle.copyWith(color: PdfColors.black),
                              ),
                            ),
                            pw.SizedBox(
                              width: 75.0,
                              child: getLocalizedPdfTextWithLanguage(
                                transactions.user?.role == "shop-owner" ? _lang.admin : transactions.user?.name ?? '',
                                pw.TextStyle(
                                  color: PdfColors.black,
                                  font: getFontWithLangMatching(
                                    transactions.user?.role == "shop-owner"
                                        ? _lang.admin
                                        : transactions.user?.name ?? '',
                                  ),
                                  fontFallback: [englishFont],
                                ),
                              ),
                            ),
                          ],
                        ),
                      ],
                    ),
                  ],
                ),
              ],
            ),
          );
        },
        footer: (pw.Context context) {
          return pw.Column(
            children: [
              pw.Padding(
                padding: const pw.EdgeInsets.all(10.0),
                child: pw.Column(children: [
                  pw.Row(
                    mainAxisAlignment: pw.MainAxisAlignment.spaceBetween,
                    children: [
                      pw.Container(
                        alignment: pw.Alignment.centerRight,
                        margin: const pw.EdgeInsets.only(bottom: 3.0 * PdfPageFormat.mm),
                        padding: const pw.EdgeInsets.only(bottom: 3.0 * PdfPageFormat.mm),
                        child: pw.Column(
                          children: [
                            pw.Container(
                              width: 120.0,
                              height: 2.0,
                              color: PdfColors.black,
                            ),
                            pw.SizedBox(height: 4.0),
                            getLocalizedPdfText(
                              _lang.customerSignature,
                              pw.TextStyle(
                                color: PdfColors.black,
                                font: getFont(),
                                fontFallback: [englishFont],
                              ),
                            ),
                          ],
                        ),
                      ),
                      pw.Container(
                        alignment: pw.Alignment.centerRight,
                        margin: const pw.EdgeInsets.only(bottom: 3.0 * PdfPageFormat.mm),
                        padding: const pw.EdgeInsets.only(bottom: 3.0 * PdfPageFormat.mm),
                        child: pw.Column(
                          children: [
                            pw.Container(
                              width: 120.0,
                              height: 2.0,
                              color: PdfColors.black,
                            ),
                            pw.SizedBox(height: 4.0),
                            getLocalizedPdfText(
                              _lang.authorizedSignature,
                              pw.TextStyle(
                                color: PdfColors.black,
                                font: getFont(),
                                fontFallback: [englishFont],
                              ),
                            ),
                          ],
                        ),
                      ),
                    ],
                  ),
                  pw.SizedBox(height: 8.5),
                  if (showWarranty)
                    pw.Container(
                      width: double.infinity,
                      padding: const pw.EdgeInsets.all(4),
                      decoration: pw.BoxDecoration(
                        border: pw.Border.all(color: PdfColors.black),
                      ),
                      child: pw.RichText(
                        text: pw.TextSpan(
                          children: [
                            if (personalInformation.data?.warrantyVoidLabel != null)
                              pw.TextSpan(
                                text: '${personalInformation.data!.warrantyVoidLabel!}- ',
                                style: pw.TextStyle(
                                  color: PdfColors.black,
                                  font: getFont(bold: true),
                                  fontFallback: [englishFont],
                                ),
                              ),
                            if (personalInformation.data?.warrantyVoid != null)
                              pw.TextSpan(
                                text: personalInformation.data!.warrantyVoid!,
                                style: pw.TextStyle(
                                  color: PdfColors.black,
                                  font: getFont(),
                                  fontFallback: [englishFont],
                                ),
                              ),
                          ],
                        ),
                      ),
                    ),
                ]),
              ),
              // if (!personalInformation.data!.gratitudeMessage.isEmptyOrNull)
              //   pw.Container(
              //     width: double.infinity,
              //     padding: const pw.EdgeInsets.only(bottom: 8.0),
              //     child: pw.Center(
              //         child: pw.Text(
              //       personalInformation.data!.gratitudeMessage ?? '',
              //     )),
              //   ),
              pw.SizedBox(height: 8.5),
              pw.Padding(
                padding: pw.EdgeInsets.symmetric(horizontal: 10),
                child: pw.Center(
                  child: pw.Text(
                    '${personalInformation.data?.developByLevel ?? ''} ${personalInformation.data?.developBy ?? ''}',
                    style: pw.TextStyle(fontWeight: pw.FontWeight.bold),
                  ),
                ),
              ),
            ],
          );
        },
        build: (pw.Context context) => <pw.Widget>[
          pw.Padding(
            padding: const pw.EdgeInsets.only(left: 20.0, right: 20.0, bottom: 20.0),
            child: pw.Column(
              children: [
                pw.Table(
                  columnWidths: <int, pw.TableColumnWidth>{
                    0: const pw.FlexColumnWidth(1),
                    1: const pw.FlexColumnWidth(3),
                    2: const pw.FlexColumnWidth(3),
                    3: const pw.FlexColumnWidth(3),
                  },
                  border: pw.TableBorder(
                    horizontalInside: pw.BorderSide(color: PdfColor.fromInt(0xffD9D9D9)),
                    verticalInside: pw.BorderSide(color: PdfColor.fromInt(0xffD9D9D9)),
                    left: pw.BorderSide(color: PdfColor.fromInt(0xffD9D9D9)),
                    right: pw.BorderSide(color: PdfColor.fromInt(0xffD9D9D9)),
                    top: pw.BorderSide(color: PdfColor.fromInt(0xffD9D9D9)),
                    bottom: pw.BorderSide(color: PdfColor.fromInt(0xffD9D9D9)),
                  ),
                  children: [
                    // pw.TableRow(
                    //   children: [
                    //     pw.Container(
                    //       decoration: const pw.BoxDecoration(
                    //         color: PdfColor.fromInt(0xffC52127),
                    //       ), // Red background
                    //       padding: const pw.EdgeInsets.all(8.0),
                    //       child: getLocalizedPdfText(
                    //         _lang.sl,
                    //         pw.TextStyle(color: PdfColors.white, fontWeight: pw.FontWeight.bold, font: getFont(), fontFallback: [englishFont]),
                    //         textAlignment: pw.TextAlign.left,
                    //       ),
                    //     ),
                    //     pw.Container(
                    //       color: const PdfColor.fromInt(0xffC52127), // Red background
                    //       padding: const pw.EdgeInsets.all(8.0),
                    //       child: getLocalizedPdfText(
                    //         _lang.totalDue,
                    //         pw.TextStyle(color: PdfColors.white, fontWeight: pw.FontWeight.bold, font: getFont(), fontFallback: [englishFont]),
                    //         textAlignment: pw.TextAlign.left,
                    //       ),
                    //     ),
                    //     pw.Container(
                    //       color: const PdfColor.fromInt(0xff000000), // Black background
                    //       padding: const pw.EdgeInsets.all(8.0),
                    //       child: getLocalizedPdfText(
                    //         _lang.paymentsAmount,
                    //         pw.TextStyle(color: PdfColors.white, fontWeight: pw.FontWeight.bold, font: getFont(), fontFallback: [englishFont]),
                    //         textAlignment: pw.TextAlign.left,
                    //       ),
                    //     ),
                    //     pw.Container(
                    //       color: const PdfColor.fromInt(0xff000000), // Black background
                    //       padding: const pw.EdgeInsets.all(8.0),
                    //       child: getLocalizedPdfText(
                    //         _lang.remainingDue,
                    //         pw.TextStyle(color: PdfColors.white, fontWeight: pw.FontWeight.bold, font: getFont(), fontFallback: [englishFont]),
                    //         textAlignment: pw.TextAlign.left,
                    //       ),
                    //     ),
                    //   ],
                    // ),
                    pw.TableRow(
                      children: [
                        pw.Padding(
                          padding: const pw.EdgeInsets.all(8),
                          child: getLocalizedPdfText(
                            _lang.sl,
                            pw.TextStyle(
                              font: getFont(bold: true),
                              fontFallback: [englishFont],
                            ),
                            textAlignment: pw.TextAlign.center,
                          ),
                        ),
                        pw.Padding(
                          padding: const pw.EdgeInsets.all(8),
                          child: getLocalizedPdfText(
                            _lang.totalDue,
                            pw.TextStyle(
                              font: getFont(bold: true),
                              fontFallback: [englishFont],
                              fontWeight: pw.FontWeight.bold,
                            ),
                            textAlignment: pw.TextAlign.left,
                          ),
                        ),
                        pw.Padding(
                          padding: const pw.EdgeInsets.all(8),
                          child: getLocalizedPdfText(
                            _lang.paymentsAmount,
                            pw.TextStyle(
                              font: getFont(bold: true),
                              fontFallback: [englishFont],
                              fontWeight: pw.FontWeight.bold,
                            ),
                            textAlignment: pw.TextAlign.center,
                          ),
                        ),
                        pw.Padding(
                          padding: const pw.EdgeInsets.all(8),
                          child: getLocalizedPdfText(
                            _lang.remainingDue,
                            pw.TextStyle(
                              font: getFont(bold: true),
                              fontFallback: [englishFont],
                              fontWeight: pw.FontWeight.bold,
                            ),
                            textAlignment: pw.TextAlign.right,
                          ),
                        ),
                      ],
                    ),
                    pw.TableRow(
                      children: [
                        pw.Padding(
                          padding: const pw.EdgeInsets.all(8.0),
                          child: getLocalizedPdfText(
                            '1',
                            textAlignment: pw.TextAlign.left,
                            pw.TextStyle(font: getFont(), fontFallback: [englishFont]),
                          ),
                        ),
                        pw.Padding(
                          padding: const pw.EdgeInsets.all(8.0),
                          child: getLocalizedPdfText(
                            "${transactions.totalDue}",
                            textAlignment: pw.TextAlign.center,
                            pw.TextStyle(font: getFont(), fontFallback: [englishFont]),
                          ),
                        ),
                        pw.Padding(
                          padding: const pw.EdgeInsets.all(8.0),
                          child: getLocalizedPdfText(
                            (transactions.totalDue!.toDouble() - transactions.dueAmountAfterPay!.toDouble())
                                .toStringAsFixed(2),
                            textAlignment: pw.TextAlign.center,
                            pw.TextStyle(font: getFont(), fontFallback: [englishFont]),
                          ),
                        ),
                        pw.Padding(
                          padding: const pw.EdgeInsets.all(8.0),
                          child: getLocalizedPdfText(
                            "${transactions.dueAmountAfterPay?.toStringAsFixed(2)}",
                            textAlignment: pw.TextAlign.right,
                            pw.TextStyle(font: getFont(), fontFallback: [englishFont]),
                          ),
                        ),
                      ],
                    ),
                  ],
                ),
                pw.Row(
                  mainAxisAlignment: pw.MainAxisAlignment.spaceBetween,
                  crossAxisAlignment: pw.CrossAxisAlignment.start,
                  children: [
                    pw.Expanded(
                      child: pw.Column(
                        crossAxisAlignment: pw.CrossAxisAlignment.start,
                        children: [
                          pw.SizedBox(height: 22),
                          // Amount in words
                          pw.SizedBox(
                            width: 350,
                            child: pw.Text(
                              PDFCommonFunctions().numberToWords(transactions.totalDue ?? 0),
                              style: pw.TextStyle(
                                color: PdfColors.black,
                                font: getFont(bold: true),
                                fontWeight: pw.FontWeight.bold,
                              ),
                              maxLines: 3,
                            ),
                          ),
                          pw.SizedBox(height: 18),
                          // Paid via
                          pw.Wrap(
                            spacing: 6,
                            runSpacing: 4,
                            children: [
                              pw.Text('${_lang.paidVia} :'),
                              ...?transactions.transactions?.asMap().entries.map((entry) {
                                final index = entry.key;
                                final item = entry.value;

                                String label;
                                switch (item.transactionType) {
                                  case 'cash_payment':
                                    label = 'Cash';
                                    break;
                                  case 'cheque_payment':
                                    label = 'Cheque';
                                    break;
                                  case 'wallet_payment':
                                    label = 'Wallet';
                                    break;
                                  default:
                                    label = item.paymentType?.name ?? 'n/a';
                                }

                                final isLast = index == transactions.transactions!.length - 1;
                                final text = isLast ? label : '$label,';

                                return pw.Text(
                                  text,
                                  style: pw.TextStyle(
                                    font: getFont(bold: true),
                                    fontWeight: pw.FontWeight.bold,
                                  ),
                                );
                              }),
                            ],
                          ),
                          pw.SizedBox(height: 12),
                          if ((!personalInformation.data!.invoiceNote.isEmptyOrNull ||
                                  !personalInformation.data!.invoiceNoteLevel.isEmptyOrNull) &&
                              personalInformation.data!.showNote == 1)
                            pw.RichText(
                                text: pw.TextSpan(
                                    text: '${personalInformation.data?.invoiceNoteLevel ?? ''}: ',
                                    style: pw.TextStyle(
                                      font: getFont(bold: true),
                                    ),
                                    children: [
                                  pw.TextSpan(
                                      text: personalInformation.data?.invoiceNote ?? '',
                                      style: pw.TextStyle(
                                        font: getFont(bold: true),
                                      ))
                                ])),

                          pw.SizedBox(height: 12),

                          // Bank details - FIXED: Check if transactions list is not empty
                          if (latestBankTransaction != null)
                            pw.Container(
                              width: 256,
                              height: 120,
                              decoration: pw.BoxDecoration(
                                border: pw.Border.all(color: PdfColors.black),
                              ),
                              child: pw.Column(
                                children: [
                                  pw.Padding(
                                    padding: const pw.EdgeInsets.symmetric(horizontal: 8, vertical: 6),
                                    child: pw.Text(
                                      _lang.bankDetails,
                                      style: pw.TextStyle(
                                        fontWeight: pw.FontWeight.bold,
                                        font: getFont(bold: true),
                                        fontSize: 12,
                                      ),
                                    ),
                                  ),
                                  pw.Divider(color: PdfColors.black, height: 1),
                                  pw.Padding(
                                    padding: const pw.EdgeInsets.symmetric(horizontal: 8, vertical: 4),
                                    child: pw.Column(
                                      children: [
                                        pw.Row(
                                          children: [
                                            pw.Expanded(
                                              child: pw.Text(
                                                _lang.name,
                                                style: pw.TextStyle(
                                                  font: getFont(),
                                                  fontSize: 12,
                                                ),
                                              ),
                                            ),
                                            pw.Expanded(
                                              child: pw.Text(': ${latestBankTransaction.paymentType?.name ?? ''}'),
                                            ),
                                          ],
                                        ),
                                        pw.SizedBox(height: 4),
                                        pw.Row(
                                          children: [
                                            pw.Expanded(
                                              child: pw.Text(
                                                _lang.accountNumber,
                                                style: pw.TextStyle(
                                                  font: getFont(),
                                                  fontSize: 12,
                                                ),
                                              ),
                                            ),
                                            pw.Expanded(
                                              child: pw.Text(
                                                ': ${latestBankTransaction.paymentType?.paymentTypeMeta?.accountNumber ?? ''}',
                                              ),
                                            ),
                                          ],
                                        ),
                                        pw.SizedBox(height: 4),
                                        pw.Row(
                                          children: [
                                            pw.Expanded(
                                              child: pw.Text(
                                                _lang.ifscCode,
                                                style: pw.TextStyle(
                                                  font: getFont(),
                                                  fontSize: 12,
                                                ),
                                              ),
                                            ),
                                            pw.Expanded(
                                              child: pw.Text(
                                                ': ${latestBankTransaction.paymentType?.paymentTypeMeta?.ifscCode ?? ''}',
                                              ),
                                            ),
                                          ],
                                        ),
                                        pw.SizedBox(height: 4),
                                        pw.Row(
                                          children: [
                                            pw.Expanded(
                                              child: pw.Text(
                                                _lang.holderName,
                                                style: pw.TextStyle(
                                                  font: getFont(),
                                                  fontSize: 12,
                                                ),
                                              ),
                                            ),
                                            pw.Expanded(
                                              child: pw.Text(
                                                ': ${latestBankTransaction.paymentType?.paymentTypeMeta?.holderName ?? ''}',
                                              ),
                                            ),
                                          ],
                                        ),
                                      ],
                                    ),
                                  ),
                                ],
                              ),
                            ),
                        ],
                      ),
                    ),

                    // Right column - Amount calculation (ALWAYS shows)
                    pw.Column(
                      crossAxisAlignment: pw.CrossAxisAlignment.end,
                      children: [
                        pw.SizedBox(height: 10.0),
                        getLocalizedPdfText(
                          "${_lang.payableAmount}: ${transactions.totalDue?.toStringAsFixed(2) ?? 0}",
                          pw.TextStyle(
                            color: PdfColors.black,
                            fontWeight: pw.FontWeight.bold,
                            font: getFont(bold: true),
                            fontFallback: [englishFont],
                          ),
                        ),
                        pw.SizedBox(height: 5.0),
                        getLocalizedPdfText(
                          "${_lang.receivedAmount} : ${(transactions.totalDue!.toDouble() - transactions.dueAmountAfterPay!.toDouble()).toStringAsFixed(2)}",
                          pw.TextStyle(
                            color: PdfColors.black,
                            fontWeight: pw.FontWeight.bold,
                            font: getFont(bold: true),
                            fontFallback: [englishFont],
                          ),
                        ),
                        pw.SizedBox(height: 5.0),
                        getLocalizedPdfText(
                          "${_lang.dueAmount} : ${transactions.dueAmountAfterPay?.toStringAsFixed(2) ?? 0}",
                          pw.TextStyle(
                            color: PdfColors.black,
                            fontWeight: pw.FontWeight.bold,
                            font: getFont(bold: true),
                            fontFallback: [englishFont],
                          ),
                        ),
                        pw.SizedBox(height: 5.0),
                      ],
                    ),
                  ],
                ),
                pw.SizedBox(height: 20.0),
                if (personalInformation.data?.showGratitudeMsg == 1)
                  if (!personalInformation.data!.gratitudeMessage.isEmptyOrNull)
                    pw.Container(
                      width: double.infinity,
                      padding: const pw.EdgeInsets.only(bottom: 8.0),
                      child: pw.Center(
                          child: pw.Text(
                        personalInformation.data!.gratitudeMessage ?? '',
                      )),
                    ),
                pw.Padding(padding: const pw.EdgeInsets.all(10)),
              ],
            ),
          ),
        ],
      ),
    );

    EasyLoading.showSuccess(_lang.pdfGenerateSuccessfully);

    if (showPreview == true) {
      await Printing.layoutPdf(
        name: personalInformation.data?.companyName ?? '',
        usePrinterSettings: true,
        dynamicLayout: true,
        forceCustomPrintPaper: true,
        onLayout: (PdfPageFormat format) async => doc.save(),
      );
    } else {
      await PDFCommonFunctions.savePdfAndShowPdf(
        context: context,
        shopName: personalInformation.data?.companyName ?? '',
        invoice: transactions.invoiceNumber ?? '',
        doc: doc,
        isShare: isShare,
        download: download,
      );
    }
  }
}