TF-248 Change avatar of item list email

model/lib/email/presentation_email.dart

@@ -1,4 +1,6 @@
 
+import 'dart:ui';
+
 import 'package:equatable/equatable.dart';
 import 'package:jmap_dart_client/jmap/core/unsigned_int.dart';
 import 'package:jmap_dart_client/jmap/core/utc_date.dart';
@@ -26,6 +28,7 @@ class PresentationEmail with EquatableMixin {
   final Map<MailboxId, bool>? mailboxIds;
   final List<MailboxName?>? mailboxNames;
   final SelectMode selectMode;
+  final List<Color>? avatarColors;
 
   PresentationEmail(
     this.id,
@@ -44,7 +47,8 @@ class PresentationEmail with EquatableMixin {
       this.replyTo,
       this.mailboxIds,
       this.mailboxNames,
-      this.selectMode = SelectMode.INACTIVE
+      this.selectMode = SelectMode.INACTIVE,
+      this.avatarColors,
     }
   );
 
@@ -52,9 +56,26 @@ class PresentationEmail with EquatableMixin {
 
   String getAvatarText() {
     if (getSenderName().isNotEmpty) {
-      final regexLetter = RegExp("([A-Za-z])");
-      final firstLetter = regexLetter.firstMatch(getSenderName().trim())?.group(0);
-      return firstLetter != null ? firstLetter.toUpperCase() : '';
+      final listWord = getSenderName().split(' ');
+      if (listWord.length > 1) {
+        final regexLetter = RegExp("([A-Za-z])");
+        final firstLetterOfFirstWord = regexLetter.firstMatch(listWord[0].trim())?.group(0);
+        final firstLetterOfSecondWord = regexLetter.firstMatch(listWord[1].trim())?.group(0);
+
+        if (firstLetterOfFirstWord != null && firstLetterOfSecondWord != null) {
+          return '${firstLetterOfFirstWord.toUpperCase()}${firstLetterOfSecondWord.toUpperCase()}';
+        } else if (firstLetterOfFirstWord != null && firstLetterOfSecondWord == null) {
+          return '${firstLetterOfFirstWord.toUpperCase()}${firstLetterOfFirstWord.toUpperCase()}';
+        } else if (firstLetterOfFirstWord == null && firstLetterOfSecondWord != null) {
+          return '${firstLetterOfSecondWord.toUpperCase()}${firstLetterOfSecondWord.toUpperCase()}';
+        } else {
+          return '';
+        }
+      } else {
+        final regexLetter = RegExp("([A-Za-z])");
+        final firstLetter = regexLetter.firstMatch(getSenderName().trim())?.group(0);
+        return firstLetter != null ? '${firstLetter.toUpperCase()}${firstLetter.toUpperCase()}' : '';
+      }
     }
     return '';
   }

model/lib/extensions/presentation_email_extension.dart

@@ -1,3 +1,5 @@
+import 'dart:math';
+
 import 'package:core/core.dart';
 import 'package:jmap_dart_client/jmap/mail/email/email.dart';
 import 'package:dartz/dartz.dart';
@@ -136,7 +138,32 @@ extension PresentationEmailExtension on PresentationEmail {
       replyTo: replyTo,
       mailboxIds: mailboxIds,
       mailboxNames: listMailboxName,
-      selectMode: selectMode
+      selectMode: selectMode,
+      avatarColors: avatarColors
+    );
+  }
+
+  PresentationEmail asAvatarGradientColor(Random random) {
+    final newAvatarColors = AppColor.mapGradientColor[random.nextInt(AppColor.mapGradientColor.length)];
+
+    return PresentationEmail(
+      this.id,
+      keywords: keywords,
+      size: size,
+      receivedAt: receivedAt,
+      hasAttachment: hasAttachment,
+      preview: preview,
+      subject: subject,
+      sentAt: sentAt,
+      from: from,
+      to: to,
+      cc: cc,
+      bcc: bcc,
+      replyTo: replyTo,
+      mailboxIds: mailboxIds,
+      mailboxNames: mailboxNames,
+      selectMode: selectMode,
+      avatarColors: avatarColors ?? newAvatarColors,
     );
   }
 }