303 lines
13 KiB
Dart
303 lines
13 KiB
Dart
import 'dart:io';
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import 'package:flutter/material.dart' show debugPrint;
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import 'package:flutter/services.dart';
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import 'package:pdf/pdf.dart';
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import 'package:pdf/widgets.dart' as pw;
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import 'package:path_provider/path_provider.dart';
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import 'package:intl/intl.dart';
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import '../models/invoice_models.dart';
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import 'company_repository.dart';
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import 'activity_log_repository.dart';
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/// PDFドキュメントの構築（プレビューと実保存の両方で使用）
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Future<pw.Document> buildInvoiceDocument(Invoice invoice) async {
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final pdf = pw.Document();
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final fontData = await rootBundle.load("assets/fonts/ipaexg.ttf");
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final ipaex = pw.Font.ttf(fontData);
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final dateFormatter = DateFormat('yyyy年MM月dd日');
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final amountFormatter = NumberFormat("#,###");
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final companyRepo = CompanyRepository();
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final companyInfo = await companyRepo.getCompanyInfo();
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pw.MemoryImage? sealImage;
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if (companyInfo.sealPath != null) {
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final file = File(companyInfo.sealPath!);
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if (await file.exists()) {
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sealImage = pw.MemoryImage(await file.readAsBytes());
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}
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}
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pdf.addPage(
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pw.MultiPage(
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pageTheme: pw.PageTheme(
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pageFormat: PdfPageFormat.a4,
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margin: const pw.EdgeInsets.all(32),
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theme: pw.ThemeData.withFont(
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base: ipaex,
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bold: ipaex,
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italic: ipaex,
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boldItalic: ipaex,
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).copyWith(defaultTextStyle: pw.TextStyle(fontFallback: [ipaex])),
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buildBackground: (context) {
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if (!invoice.isDraft) return pw.SizedBox();
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return pw.Center(
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child: pw.Transform.rotate(
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angle: -0.5,
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child: pw.Opacity(
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opacity: 0.18,
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child: pw.Text(
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'下書き',
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style: pw.TextStyle(
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fontSize: 120,
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fontWeight: pw.FontWeight.bold,
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color: PdfColors.grey600,
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),
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),
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),
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),
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);
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},
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),
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build: (context) {
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final content = <pw.Widget>[
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pw.Header(
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level: 0,
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child: pw.Row(
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mainAxisAlignment: pw.MainAxisAlignment.spaceBetween,
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children: [
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pw.Text(invoice.documentTypeName, style: pw.TextStyle(fontSize: 28, fontWeight: pw.FontWeight.bold)),
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pw.Column(
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crossAxisAlignment: pw.CrossAxisAlignment.end,
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children: [
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pw.Text("番号: ${invoice.invoiceNumber}"),
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pw.Text("発行日: ${dateFormatter.format(invoice.date)}"),
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],
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),
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],
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),
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),
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pw.SizedBox(height: 20),
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pw.Row(
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crossAxisAlignment: pw.CrossAxisAlignment.start,
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children: [
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pw.Expanded(
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child: pw.Column(
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crossAxisAlignment: pw.CrossAxisAlignment.start,
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children: [
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pw.Container(
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decoration: const pw.BoxDecoration(border: pw.Border(bottom: pw.BorderSide(width: 1))),
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child: pw.Text(invoice.customer.invoiceName, style: const pw.TextStyle(fontSize: 18)),
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),
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pw.SizedBox(height: 6),
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if ((invoice.contactAddressSnapshot ?? invoice.customer.address) != null)
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pw.Text(invoice.contactAddressSnapshot ?? invoice.customer.address!, style: const pw.TextStyle(fontSize: 12)),
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if ((invoice.contactTelSnapshot ?? invoice.customer.tel) != null)
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pw.Text("TEL: ${invoice.contactTelSnapshot ?? invoice.customer.tel}", style: const pw.TextStyle(fontSize: 12)),
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if (invoice.contactEmailSnapshot != null)
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pw.Text("MAIL: ${invoice.contactEmailSnapshot}", style: const pw.TextStyle(fontSize: 12)),
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pw.SizedBox(height: 10),
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pw.Text(
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invoice.documentType == DocumentType.receipt
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? "上記の金額を正に領収いたしました。"
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: (invoice.documentType == DocumentType.estimation
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? "下記の通り、お見積り申し上げます。"
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: "下記の通り、ご請求申し上げます。"),
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),
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],
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),
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),
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pw.Expanded(
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child: pw.Stack(
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alignment: pw.Alignment.topRight,
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children: [
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pw.Column(
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crossAxisAlignment: pw.CrossAxisAlignment.end,
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children: [
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pw.Text(companyInfo.name, style: pw.TextStyle(fontSize: 14, fontWeight: pw.FontWeight.bold)),
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if (companyInfo.zipCode != null) pw.Text("〒${companyInfo.zipCode}"),
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if (companyInfo.address != null) pw.Text(companyInfo.address!),
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if (companyInfo.tel != null) pw.Text("TEL: ${companyInfo.tel}"),
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if (companyInfo.fax != null && companyInfo.fax!.isNotEmpty) pw.Text("FAX: ${companyInfo.fax}"),
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if (companyInfo.email != null && companyInfo.email!.isNotEmpty) pw.Text("MAIL: ${companyInfo.email}"),
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if (companyInfo.url != null && companyInfo.url!.isNotEmpty) pw.Text("URL: ${companyInfo.url}"),
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if (companyInfo.registrationNumber != null && companyInfo.registrationNumber!.isNotEmpty)
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pw.Text("登録番号: ${companyInfo.registrationNumber!}", style: const pw.TextStyle(fontSize: 10)),
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],
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),
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if (sealImage != null)
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pw.Positioned(
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right: 10,
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top: 0,
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child: pw.Opacity(opacity: 0.8, child: pw.Image(sealImage, width: 40, height: 40)),
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),
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],
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),
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),
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],
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),
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pw.SizedBox(height: 30),
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pw.Container(
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padding: const pw.EdgeInsets.all(8),
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decoration: const pw.BoxDecoration(color: PdfColors.grey200),
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child: pw.Row(
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mainAxisAlignment: pw.MainAxisAlignment.spaceBetween,
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children: [
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pw.Text(
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invoice.documentType == DocumentType.receipt
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? (companyInfo.taxDisplayMode == 'hidden' ? "領収金額" : "領収金額 (税込)")
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: (companyInfo.taxDisplayMode == 'hidden' ? "合計金額" : "合計金額 (税込)"),
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style: const pw.TextStyle(fontSize: 16),
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),
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pw.Text("￥${amountFormatter.format(invoice.totalAmount)} -", style: pw.TextStyle(fontSize: 20, fontWeight: pw.FontWeight.bold)),
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],
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),
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),
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pw.SizedBox(height: 20),
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pw.TableHelper.fromTextArray(
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headers: const ["品名", "数量", "単価", "金額"],
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data: invoice.items
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.map((item) => [
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item.description,
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item.quantity.toString(),
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amountFormatter.format(item.unitPrice),
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amountFormatter.format(item.subtotal),
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])
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.toList(),
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headerStyle: pw.TextStyle(fontWeight: pw.FontWeight.bold, font: ipaex),
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headerDecoration: const pw.BoxDecoration(color: PdfColors.grey300),
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cellAlignment: pw.Alignment.centerLeft,
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columnWidths: const {0: pw.FlexColumnWidth(3), 1: pw.FlexColumnWidth(1), 2: pw.FlexColumnWidth(2), 3: pw.FlexColumnWidth(2)},
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cellAlignments: const {
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0: pw.Alignment.centerLeft,
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1: pw.Alignment.centerRight,
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2: pw.Alignment.centerRight,
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3: pw.Alignment.centerRight,
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},
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),
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pw.SizedBox(height: 20),
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pw.Row(
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mainAxisAlignment: pw.MainAxisAlignment.end,
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children: [
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pw.Container(
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width: 200,
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child: pw.Column(
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children: [
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pw.SizedBox(height: 10),
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_buildSummaryRow("小計 (税抜)", amountFormatter.format(invoice.subtotal)),
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if (companyInfo.taxDisplayMode == 'normal')
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_buildSummaryRow("消費税 (${(invoice.taxRate * 100).toInt()}%)", amountFormatter.format(invoice.tax)),
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if (companyInfo.taxDisplayMode == 'text_only') _buildSummaryRow("消費税", "（税別）"),
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pw.Divider(),
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_buildSummaryRow("合計", "￥${amountFormatter.format(invoice.totalAmount)}", isBold: true),
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],
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),
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),
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],
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),
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if (invoice.notes != null && invoice.notes!.isNotEmpty) ...[
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pw.SizedBox(height: 10),
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pw.Text("備考:", style: pw.TextStyle(fontWeight: pw.FontWeight.bold)),
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pw.Container(
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width: double.infinity,
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padding: const pw.EdgeInsets.all(8),
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decoration: pw.BoxDecoration(border: pw.Border.all(color: PdfColors.grey400)),
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child: pw.Text(invoice.notes!),
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),
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],
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pw.SizedBox(height: 20),
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pw.Row(
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mainAxisAlignment: pw.MainAxisAlignment.spaceBetween,
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crossAxisAlignment: pw.CrossAxisAlignment.end,
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children: [
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pw.Column(
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crossAxisAlignment: pw.CrossAxisAlignment.start,
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children: [
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pw.Text("Verification Hash (SHA256):", style: pw.TextStyle(fontSize: 8, color: PdfColors.grey700)),
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pw.Text(invoice.contentHash, style: pw.TextStyle(fontSize: 10, fontWeight: pw.FontWeight.bold, color: PdfColors.grey700)),
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],
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),
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pw.Container(
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width: 50,
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height: 50,
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child: pw.BarcodeWidget(barcode: pw.Barcode.qrCode(), data: invoice.contentHash, drawText: false),
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),
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],
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),
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];
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return [pw.Column(children: content)];
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},
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footer: (context) => pw.Container(
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alignment: pw.Alignment.centerRight,
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margin: const pw.EdgeInsets.only(top: 16),
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child: pw.Text("Page ${context.pageNumber} / ${context.pagesCount}", style: const pw.TextStyle(color: PdfColors.grey)),
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),
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),
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);
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return pdf;
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}
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/// A4サイズのプロフェッショナルな伝票PDFを生成し、保存する
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Future<String?> generateInvoicePdf(Invoice invoice) async {
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try {
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final pdf = await buildInvoiceDocument(invoice);
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final String hash = invoice.contentHash;
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final String dateStr = DateFormat('yyyyMMdd').format(invoice.date);
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final String amountStr = NumberFormat("#,###").format(invoice.totalAmount);
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// {日付}({タイプ}){顧客名}_{案件}_{金額}_{HASH下8桁}.pdf
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// 顧客名から敬称を除去
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String safeCustomerName = invoice.customerNameForDisplay
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.replaceAll('株式会社', '')
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.replaceAll('（株）', '')
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.replaceAll('(株)', '')
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.replaceAll('有限会社', '')
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.replaceAll('（有）', '')
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.replaceAll('(有)', '')
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.replaceAll('合同会社', '')
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.replaceAll('（同）', '')
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.replaceAll('(同)', '')
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.trim();
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final suffix = (invoice.subject?.isNotEmpty ?? false) ? "_${invoice.subject}" : "";
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final String fileName = "$dateStr(${invoice.documentTypeName})$safeCustomerName${suffix}_$amountStr円_$hash.pdf";
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final directory = await getExternalStorageDirectory();
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if (directory == null) return null;
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final file = File("${directory.path}/$fileName");
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final Uint8List bytes = await pdf.save();
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await file.writeAsBytes(bytes);
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// 生成をログに記録
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final logRepo = ActivityLogRepository();
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await logRepo.logAction(
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action: "GENERATE_PDF",
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targetType: "INVOICE",
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targetId: invoice.id,
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details: "PDF生成: $fileName (${invoice.documentTypeName})",
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);
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return file.path;
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} catch (e) {
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debugPrint("PDF Generation Error: $e");
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return null;
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}
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}
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pw.Widget _buildSummaryRow(String label, String value, {bool isBold = false}) {
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final style = pw.TextStyle(fontSize: 12, fontWeight: isBold ? pw.FontWeight.bold : null);
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return pw.Padding(
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padding: const pw.EdgeInsets.symmetric(vertical: 2),
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child: pw.Row(
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mainAxisAlignment: pw.MainAxisAlignment.spaceBetween,
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children: [
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pw.Text(label, style: style),
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pw.Text(value, style: style),
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],
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),
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);
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}
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