244 lines
9.1 KiB
Dart
244 lines
9.1 KiB
Dart
import 'dart:io';
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import 'dart:typed_data';
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import 'package:crypto/crypto.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_email_sender/flutter_email_sender.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:printing/printing.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import '../constants/mail_send_method.dart';
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import '../constants/mail_templates.dart';
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import '../models/invoice_models.dart';
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import '../services/company_profile_service.dart';
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import '../services/email_sender.dart';
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import '../services/pdf_generator.dart';
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class InvoicePdfPreviewPage extends StatelessWidget {
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final Invoice invoice;
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final bool allowFormalIssue;
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final bool isUnlocked;
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final bool isLocked;
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final Future<bool> Function()? onFormalIssue;
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final bool showShare;
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final bool showEmail;
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final bool showPrint;
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const InvoicePdfPreviewPage({
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super.key,
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required this.invoice,
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this.allowFormalIssue = true,
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this.isUnlocked = false,
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this.isLocked = false,
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this.onFormalIssue,
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this.showShare = true,
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this.showEmail = true,
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this.showPrint = true,
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});
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Future<Uint8List> _buildPdfBytes() async {
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final doc = await buildInvoiceDocument(invoice);
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return Uint8List.fromList(await doc.save());
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}
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Future<void> _sendEmail(BuildContext context) async {
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try {
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final prefs = await SharedPreferences.getInstance();
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final mailMethod = normalizeMailSendMethod(prefs.getString(kMailSendMethodPrefKey));
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final bccRaw = prefs.getString('smtp_bcc') ?? '';
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final bccList = EmailSender.parseBcc(bccRaw);
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if (bccList.isEmpty) {
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if (context.mounted) {
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ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text('BCCは必須項目です（設定画面で登録してください）')));
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}
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return;
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}
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final toEmail = invoice.contactEmailSnapshot ?? invoice.customer.email;
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if (toEmail == null || toEmail.isEmpty) {
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if (context.mounted) {
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ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text('送信先メールアドレスがありません（顧客にメールを登録してください）')));
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}
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return;
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}
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final bytes = await _buildPdfBytes();
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final fileName = invoice.mailAttachmentFileName;
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final tempDir = await getTemporaryDirectory();
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final file = File('${tempDir.path}/$fileName');
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await file.writeAsBytes(bytes, flush: true);
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final hash = sha256.convert(bytes).toString();
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final headerTemplate = prefs.getString(kMailHeaderTextKey) ?? kMailHeaderTemplateDefault;
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final footerTemplate = prefs.getString(kMailFooterTextKey) ?? kMailFooterTemplateDefault;
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final placeholderMap = await CompanyProfileService().buildMailPlaceholderMap(filename: fileName, hash: hash);
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final header = applyMailTemplate(headerTemplate, placeholderMap);
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final footer = applyMailTemplate(footerTemplate, placeholderMap);
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final bodyCore = invoice.mailBodyText;
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final body = [header, bodyCore, footer].where((section) => section.trim().isNotEmpty).join('\n\n');
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if (mailMethod == kMailSendMethodDeviceMailer) {
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final email = Email(
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body: body,
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subject: fileName,
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recipients: [toEmail],
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bcc: bccList,
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attachmentPaths: [file.path],
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isHTML: false,
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);
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try {
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await FlutterEmailSender.send(email);
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await EmailSender.logDeviceMailer(success: true, toEmail: toEmail, bcc: bccList);
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} catch (e) {
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await EmailSender.logDeviceMailer(success: false, toEmail: toEmail, bcc: bccList, error: '$e');
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rethrow;
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}
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} else {
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final host = prefs.getString('smtp_host') ?? '';
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final portStr = prefs.getString('smtp_port') ?? '587';
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final user = prefs.getString('smtp_user') ?? '';
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final passEncrypted = prefs.getString('smtp_pass') ?? '';
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final pass = EmailSender.decrypt(passEncrypted);
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final useTls = prefs.getBool('smtp_tls') ?? true;
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final ignoreBadCert = prefs.getBool('smtp_ignore_bad_cert') ?? false;
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if (host.isEmpty || user.isEmpty || pass.isEmpty) {
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if (context.mounted) {
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ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text('SMTP設定を先に保存してください')));
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}
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return;
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}
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final port = int.tryParse(portStr) ?? 587;
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final smtpConfig = EmailSenderConfig(
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host: host,
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port: port,
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username: user,
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password: pass,
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useTls: useTls,
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ignoreBadCert: ignoreBadCert,
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bcc: bccList,
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);
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await EmailSender.sendInvoiceEmail(
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config: smtpConfig,
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toEmail: toEmail,
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pdfFile: file,
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subject: fileName,
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attachmentFileName: fileName,
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body: body,
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);
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}
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if (context.mounted) {
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ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text('メール送信しました')));
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}
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} catch (e) {
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if (context.mounted) {
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ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('メール送信に失敗しました: $e')));
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}
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}
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}
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@override
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Widget build(BuildContext context) {
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final isDraft = invoice.isDraft;
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return Scaffold(
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appBar: AppBar(
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title: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: const [
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Text("PDFプレビュー"),
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Text("ScreenID: 02", style: TextStyle(fontSize: 11, color: Colors.white70)),
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],
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),
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),
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body: Column(
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children: [
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Expanded(
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child: PdfPreview(
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build: (format) async => await _buildPdfBytes(),
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allowPrinting: false,
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allowSharing: false,
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canChangePageFormat: false,
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canChangeOrientation: false,
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canDebug: false,
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actions: const [],
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),
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),
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SafeArea(
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top: false,
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child: Padding(
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padding: const EdgeInsets.fromLTRB(12, 8, 12, 16),
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child: Row(
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children: [
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Expanded(
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child: ElevatedButton.icon(
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onPressed: (allowFormalIssue && isDraft && isUnlocked && !isLocked && onFormalIssue != null)
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? () async {
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final ok = await onFormalIssue!();
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if (ok && context.mounted) Navigator.pop(context, true);
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}
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: null,
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icon: const Icon(Icons.check_circle_outline),
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label: Stack(
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alignment: Alignment.center,
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children: [
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const Text("正式発行"),
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if (!isDraft || isLocked)
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const Positioned(
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right: 0,
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child: Icon(Icons.lock, size: 16, color: Colors.white70),
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),
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],
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),
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style: ElevatedButton.styleFrom(backgroundColor: Colors.orange, foregroundColor: Colors.white),
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),
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),
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const SizedBox(width: 8),
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Expanded(
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child: ElevatedButton.icon(
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onPressed: (showShare && (!isDraft || isLocked))
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? () async {
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final bytes = await _buildPdfBytes();
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final fileName = invoice.mailAttachmentFileName;
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await Printing.sharePdf(bytes: bytes, filename: fileName);
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}
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: null,
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icon: const Icon(Icons.share),
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label: const Text("共有"),
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),
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),
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const SizedBox(width: 8),
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Expanded(
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child: ElevatedButton.icon(
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onPressed: (showEmail && (!isDraft || isLocked))
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? () async {
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await _sendEmail(context);
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}
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: null,
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icon: const Icon(Icons.mail_outline),
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label: const SizedBox.shrink(),
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),
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),
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const SizedBox(width: 8),
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Expanded(
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child: ElevatedButton.icon(
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onPressed: showPrint
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? () async {
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await Printing.layoutPdf(onLayout: (format) async => await _buildPdfBytes());
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}
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: null,
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icon: const Icon(Icons.print),
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label: const SizedBox.shrink(),
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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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),
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);
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}
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}
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