TF-2520 Handle print email to pdf

Signed-off-by: dab246 <tdvu@linagora.com>

core/lib/core.dart

@@ -43,6 +43,8 @@ export 'utils/config/errors.dart';
 export 'data/utils/compress_file_utils.dart';
 export 'utils/platform_info.dart';
 export 'utils/option_param_mixin.dart';
+export 'utils/file_utils.dart';
+export 'utils/print_utils.dart';
 
 // Views
 export 'presentation/views/text/slogan_builder.dart';

core/lib/data/model/print_attachment.dart

@@ -0,0 +1,21 @@
+
+import 'package:equatable/equatable.dart';
+
+class PrintAttachment with EquatableMixin {
+  final String iconSvg;
+  final String name;
+  final String size;
+
+  PrintAttachment({
+    required this.iconSvg,
+    required this.name,
+    required this.size
+  });
+
+  @override
+  List<Object?> get props => [
+    iconSvg,
+    name,
+    size
+  ];
+}

core/lib/utils/print_utils.dart

@@ -0,0 +1,399 @@
+
+import 'dart:async';
+
+import 'package:core/data/model/print_attachment.dart';
+import 'package:core/presentation/extensions/color_extension.dart';
+import 'package:core/presentation/resources/image_paths.dart';
+import 'package:core/utils/app_logger.dart';
+import 'package:flutter/services.dart';
+import 'package:htmltopdfwidgets/htmltopdfwidgets.dart' as pw;
+import 'package:intl/intl.dart';
+import 'package:printing/printing.dart';
+
+class PrintUtils {
+  final pw.HTMLToPdf _htmlToPdf;
+  final ImagePaths _imagePaths;
+
+  PrintUtils(this._htmlToPdf, this._imagePaths);
+
+  Future<pw.Widget> _createEmailContentWidget(String htmlDocument) async {
+    try {
+      final List<pw.Widget> bodyWidgets = await _htmlToPdf.convert(htmlDocument);
+
+      return pw.Column(
+        crossAxisAlignment: pw.CrossAxisAlignment.start,
+        children: [
+          ...bodyWidgets
+        ]
+      );
+    } catch (e) {
+      logError('PrintUtils::_createEmailContentWidget: Exception: $e');
+      return pw.Text(htmlDocument);
+    }
+  }
+
+  List<pw.Widget> _createBodyWidgets({
+    required pw.Context context,
+    required String logoAppSvg,
+    required String appName,
+    required String userName,
+    required String title,
+    required String htmlDocument,
+    required String senderName,
+    required String senderEmailAddress,
+    required String dateTime,
+    required String toPrefix,
+    required String ccPrefix,
+    required String bccPrefix,
+    required String replyToPrefix,
+    required String titleAttachment,
+    required pw.Widget contentWidget,
+    String? toAddress,
+    String? ccAddress,
+    String? bccAddress,
+    String? replyToAddress,
+    List<PrintAttachment>? listAttachment,
+  }) {
+    return [
+      pw.Container(
+        padding: const pw.EdgeInsets.symmetric(horizontal: 32),
+        child: pw.Column(
+          crossAxisAlignment: pw.CrossAxisAlignment.start,
+          children: [
+            _createUserInformationRow(
+              context: context,
+              logoAppSvg: logoAppSvg,
+              appName: appName,
+              userName: userName
+            ),
+            _createPageDivider(),
+            if (title.isNotEmpty)
+              ...[
+                _createTitleRow(
+                  context: context,
+                  title: title
+                ),
+                _createPageDivider(),
+              ],
+            pw.SizedBox(height: 12),
+            pw.Row(
+              children: [
+                pw.Expanded(
+                  child: _createSenderWidget(
+                    context: context,
+                    name: senderName,
+                    emailAddress: senderEmailAddress
+                  )
+                ),
+                _createDateTimeWidget(
+                  context: context,
+                  dateTime: dateTime
+                )
+              ]
+            ),
+            if (replyToAddress?.isNotEmpty == true)
+              _createRecipientRow(
+                prefix: replyToPrefix,
+                emailAddress: replyToAddress!
+              ),
+            if (toAddress?.isNotEmpty == true)
+              _createRecipientRow(
+                prefix: toPrefix,
+                emailAddress: toAddress!
+              ),
+            if (ccAddress?.isNotEmpty == true)
+              _createRecipientRow(
+                prefix: ccPrefix,
+                emailAddress: ccAddress!
+              ),
+            if (bccAddress?.isNotEmpty == true)
+              _createRecipientRow(
+                prefix: bccPrefix,
+                emailAddress: bccAddress!
+              ),
+            pw.Padding(
+              padding: const pw.EdgeInsets.symmetric(
+                horizontal: 12,
+                vertical: 24),
+              child: contentWidget
+            ),
+            if (listAttachment?.isNotEmpty == true)
+              ...[
+                _createPageDivider(),
+                pw.SizedBox(height: 12),
+                _createAttachmentTitle(
+                  context: context,
+                  title: titleAttachment,
+                  totalAttachments: listAttachment!.length
+                ),
+                pw.SizedBox(height: 4),
+                ...listAttachment.map((attachment) => _createAttachmentRow(
+                      context: context,
+                      attachment: attachment
+                    ))
+              ]
+          ]
+        )
+      )
+    ];
+  }
+
+  pw.Widget _createPageDivider() {
+    return pw.Padding(
+      padding: const pw.EdgeInsets.only(top: 12),
+      child: pw.Divider()
+    );
+  }
+
+  pw.Widget _createPageHeader({
+    required pw.Context context,
+    required String appName,
+    required String title,
+    required String locale,
+  }) {
+    final currentTime = DateFormat('MM/dd/yyyy, h:mm a', locale).format(DateTime.now());
+    return pw.Padding(
+      padding: const pw.EdgeInsets.all(20),
+      child: pw.Row(
+        children: [
+          pw.Text(
+            currentTime,
+            style: pw.Theme.of(context).defaultTextStyle.copyWith(
+              fontSize: 8,
+              color: pw.PdfColor.fromInt(AppColor.colorTextBody.value)
+            )
+          ),
+          pw.SizedBox(width: 16),
+          pw.Expanded(
+            child: pw.Text(
+              '$appName - $title',
+              textAlign: pw.TextAlign.center,
+              maxLines: 1,
+              style: pw.Theme.of(context).defaultTextStyle.copyWith(
+                fontSize: 8,
+                color: pw.PdfColor.fromInt(AppColor.colorTextBody.value)
+              )
+            )
+          ),
+        ]
+      )
+    );
+  }
+
+  pw.Widget _createUserInformationRow({
+    required pw.Context context,
+    required String logoAppSvg,
+    required String appName,
+    required String userName,
+  }) {
+    return pw.Row(
+      children: [
+        pw.SvgImage(
+          svg: logoAppSvg,
+          width: 32,
+          height: 32
+        ),
+        pw.SizedBox(width: 12),
+        pw.Text(
+          appName,
+          style: pw.Theme.of(context).header0
+        ),
+        pw.Spacer(),
+        pw.SizedBox(width: 12),
+        pw.Text(
+          userName,
+          style: pw.Theme.of(context).header4
+        )
+      ]
+    );
+  }
+
+  pw.Widget _createTitleRow({
+    required pw.Context context,
+    required String title,
+  }) {
+    return pw.Padding(
+      padding: const pw.EdgeInsets.only(top: 12),
+      child: pw.Text(
+        title,
+        style: pw.Theme.of(context).header3
+      )
+    );
+  }
+
+  pw.Widget _createSenderWidget({
+    required pw.Context context,
+    required String name,
+    required String emailAddress,
+  }) {
+    return pw.Row(
+      children: [
+        if (name.isNotEmpty)
+          pw.Padding(
+            padding: const pw.EdgeInsetsDirectional.only(end: 4),
+            child: pw.Text(
+              name,
+              style: pw.Theme.of(context).header4
+            )
+          ),
+        pw.Text('<$emailAddress>')
+      ]
+    );
+  }
+
+  pw.Widget _createDateTimeWidget({
+    required pw.Context context,
+    required String dateTime,
+  }) {
+    return pw.Text(
+      dateTime,
+      style: pw.Theme.of(context).defaultTextStyle.copyWith(
+        fontSize: 10,
+        color: pw.PdfColor.fromInt(AppColor.colorTextBody.value)
+      )
+    );
+  }
+
+  pw.Widget _createRecipientRow({
+     required String prefix,
+     required String emailAddress,
+  }) {
+    return pw.Row(
+      crossAxisAlignment: pw.CrossAxisAlignment.start,
+      children: [
+        pw.Text('$prefix:'),
+        pw.SizedBox(width: 4),
+        pw.Expanded(child: pw.Text(emailAddress))
+      ]
+    );
+  }
+
+  pw.Widget _createAttachmentTitle({
+    required pw.Context context,
+    required String title,
+    required int totalAttachments,
+  }) {
+    return pw.Text(
+      '$totalAttachments $title',
+      style: pw.Theme.of(context).header4
+    );
+  }
+
+  pw.Widget _createAttachmentRow({
+    required pw.Context context,
+    required PrintAttachment attachment,
+  }) {
+    return pw.Padding(
+      padding: const pw.EdgeInsets.only(top: 8),
+      child: pw.Row(
+        children: [
+          pw.SvgImage(
+            svg: attachment.iconSvg,
+            width: 24,
+            height: 24
+          ),
+          pw.SizedBox(width: 8),
+          pw.Expanded(
+            child: pw.Column(
+              mainAxisSize: pw.MainAxisSize.min,
+              crossAxisAlignment: pw.CrossAxisAlignment.start,
+              children: [
+                pw.Text(
+                  attachment.name,
+                  style: pw.Theme.of(context).header4
+                ),
+                pw.Text(attachment.size)
+              ]
+            )
+          ),
+        ]
+      )
+    );
+  }
+
+  Future<bool> printEmailToPDF({
+    required String appName,
+    required String userName,
+    required String title,
+    required String emailContent,
+    required String senderName,
+    required String senderEmailAddress,
+    required String locale,
+    required String dateTime,
+    required String toPrefix,
+    required String ccPrefix,
+    required String bccPrefix,
+    required String replyToPrefix,
+    required String titleAttachment,
+    String? toAddress,
+    String? ccAddress,
+    String? bccAddress,
+    String? replyToAddress,
+    List<PrintAttachment>? listAttachment,
+  }) async {
+    return await Printing.layoutPdf(onLayout: (pw.PdfPageFormat format) async {
+      final googleInterRegularFont = await PdfGoogleFonts.interRegular();
+      final googleInterBoldFont = await PdfGoogleFonts.interBold();
+      final logoAppSvg = await rootBundle.loadString(_imagePaths.icTMailLogo);
+      final contentWidget = await _createEmailContentWidget(emailContent);
+
+      final pdfDocument = pw.Document();
+
+      pdfDocument.addPage(
+        pw.MultiPage(
+          pageFormat: pw.PdfPageFormat.standard,
+          orientation: pw.PageOrientation.portrait,
+          theme: pw.ThemeData(
+            defaultTextStyle: pw.TextStyle(
+              font: googleInterRegularFont,
+              fontSize: 12,
+              color: pw.PdfColors.black
+            ),
+            header3: pw.TextStyle(
+              font: googleInterBoldFont,
+              fontSize: 14,
+              fontWeight: pw.FontWeight.bold,
+              color: pw.PdfColors.black
+            ),
+            header4: pw.TextStyle(
+              font: googleInterBoldFont,
+              fontSize: 12,
+              fontWeight: pw.FontWeight.bold,
+              color: pw.PdfColors.black
+            ),
+          ),
+          margin: pw.EdgeInsets.zero,
+          build: (context) => _createBodyWidgets(
+            context: context,
+            contentWidget: contentWidget,
+            logoAppSvg: logoAppSvg,
+            appName: appName,
+            userName: userName,
+            title: title,
+            htmlDocument: emailContent,
+            senderName: senderName,
+            senderEmailAddress: senderEmailAddress,
+            dateTime: dateTime,
+            toPrefix: toPrefix,
+            ccPrefix: ccPrefix,
+            bccPrefix: toPrefix,
+            replyToPrefix: replyToPrefix,
+            toAddress: toAddress,
+            ccAddress: ccAddress,
+            bccAddress: bccAddress,
+            replyToAddress: replyToAddress,
+            titleAttachment: titleAttachment,
+            listAttachment: listAttachment
+          ),
+          header: (context) => _createPageHeader(
+            context: context,
+            appName: appName,
+            title: title,
+            locale: locale,
+          ),
+        )
+     );
+      return await pdfDocument.save();
+    });
+  }
+}

core/pubspec.lock

@@ -1,6 +1,14 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
+  archive:
+    dependency: transitive
+    description:
+      name: archive
+      sha256: "22600aa1e926be775fa5fe7e6894e7fb3df9efda8891c73f70fb3262399a432d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.4.10"
   args:
     dependency: transitive
     description:
@@ -17,6 +25,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.11.0"
+  barcode:
+    dependency: transitive
+    description:
+      name: barcode
+      sha256: "91b143666f7bb13636f716b6d4e412e372ab15ff7969799af8c9e30a382e9385"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.6"
+  bidi:
+    dependency: transitive
+    description:
+      name: bidi
+      sha256: "1a7d0c696324b2089f72e7671fd1f1f64fef44c980f3cebc84e803967c597b63"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.10"
   boolean_selector:
     dependency: transitive
     description:
@@ -65,6 +89,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.18.0"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      sha256: "0f08b14755d163f6e2134cb58222dd25ea2a2ee8a195e53983d57c075324d592"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.1"
   cross_file:
     dependency: transitive
     description:
@@ -73,6 +105,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.3.3+7"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      sha256: ff625774173754681d66daaf4a448684fb04b78f902da9cb3d308c19cc5e8bab
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.3"
   csslib:
     dependency: transitive
     description:
@@ -328,6 +368,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.15.3"
+  htmltopdfwidgets:
+    dependency: "direct main"
+    description:
+      name: htmltopdfwidgets
+      sha256: "990e3002fbbfaf307555f1991bed61b6228d7053b7e1945815c7a68f56bbda81"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.3"
   http:
     dependency: "direct main"
     description:
@@ -344,6 +392,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.0.2"
+  image:
+    dependency: transitive
+    description:
+      name: image
+      sha256: "4c68bfd5ae83e700b5204c1e74451e7bf3cf750e6843c6e158289cf56bda018e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.1.7"
   intl:
     dependency: "direct main"
     description:
@@ -464,6 +520,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.2.1"
+  pdf:
+    dependency: transitive
+    description:
+      name: pdf
+      sha256: "243f05342fc0bdf140eba5b069398985cdbdd3dbb1d776cf43d5ea29cc570ba6"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.10.8"
+  pdf_widget_wrapper:
+    dependency: transitive
+    description:
+      name: pdf_widget_wrapper
+      sha256: e9d31fd7782ce28ae346b127ea7d1cd748d799bddee379f31191693610e23749
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.1"
   petitparser:
     dependency: transitive
     description:
@@ -496,6 +568,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.9.1"
+  pointycastle:
+    dependency: transitive
+    description:
+      name: pointycastle
+      sha256: "43ac87de6e10afabc85c445745a7b799e04de84cebaa4fd7bf55a5e1e9604d29"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.7.4"
+  printing:
+    dependency: "direct main"
+    description:
+      name: printing
+      sha256: "1c99cab90ebcc1fff65831d264627d5b529359d563e53f33ab9b8117f2d280bc"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.12.0"
+  qr:
+    dependency: transitive
+    description:
+      name: qr
+      sha256: "64957a3930367bf97cc211a5af99551d630f2f4625e38af10edd6b19131b64b3"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.1"
   sky_engine:
     dependency: transitive
     description: flutter

core/pubspec.yaml

@@ -75,6 +75,10 @@ dependencies:
 
   linkify: 5.0.0
 
+  htmltopdfwidgets: 1.0.3
+
+  printing: 5.12.0
+
 dev_dependencies:
   flutter_test:
     sdk: flutter