feat: can share any contact using qr code (#30)

Reviewed-on: #30
Co-authored-by: Florian Griffon <florian.griffon@epitech.eu>
Co-committed-by: Florian Griffon <florian.griffon@epitech.eu>

dialer/lib/features/contacts/widgets/alphabet_scroll_page.dart

@@ -1,5 +1,3 @@
-// alphabet_scrollpage.dart
-import 'dart:ui';
 import 'package:dialer/services/obfuscate_service.dart';
 import 'package:dialer/widgets/username_color_generator.dart';
 import 'package:flutter/material.dart';

dialer/lib/features/contacts/widgets/contact_modal.dart

@@ -1,11 +1,10 @@
-import 'dart:ui';
-
 import 'package:dialer/services/obfuscate_service.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_contacts/flutter_contacts.dart';
 import 'package:url_launcher/url_launcher.dart';
 import 'package:dialer/widgets/username_color_generator.dart';
 import '../../../services/block_service.dart';
+import '../../../services/contact_service.dart';
 
 class ContactModal extends StatefulWidget {
   final Contact contact;
@@ -139,6 +138,11 @@ class _ContactModalState extends State<ContactModal> {
     }
   }
 
+  void _shareContactAsQRCode() {
+    // Use the ContactService to show the QR code for the contact's vCard
+    ContactService().showContactQRCodeDialog(context, widget.contact);
+  }
+
   @override
   Widget build(BuildContext context) {
     String email = widget.contact.emails.isNotEmpty
@@ -188,6 +192,8 @@ class _ContactModalState extends State<ContactModal> {
                             onSelected: (String choice) {
                               if (choice == 'delete') {
                                 _deleteContact();
+                              } else if (choice == 'share') {
+                                _shareContactAsQRCode();
                               }
                               // Handle other choices if needed
                             },

dialer/lib/features/contacts/widgets/share_own_qr.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_contacts/contact.dart';
-import 'package:qr_flutter/qr_flutter.dart';
+import 'package:dialer/services/contact_service.dart';
 
 class QRCodeButton extends StatelessWidget {
   final List<Contact> contacts;
@@ -23,32 +23,13 @@ class QRCodeButton extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-
     return IconButton(
       icon: Icon(Icons.qr_code, color: selfContact != null ? Colors.blue : Colors.grey),
       onPressed: selfContact != null
           ? () {
-        showDialog(
+              // Use the ContactService to show the QR code
-          barrierColor: Colors.white24,
+              ContactService().showContactQRCodeDialog(context, selfContact!);
-          context: context,
+            }
-          barrierDismissible: true,
-          builder: (BuildContext context) {
-            return AlertDialog(
-              backgroundColor: Colors.black,
-              content: SizedBox(
-                width: 200,
-                height: 220,
-                child: QrImageView(
-                  data: selfContact!.toVCard(),
-                  version: QrVersions.auto,
-                  backgroundColor: Colors.white, // Ensure QR code is visible on black background
-                  size: 200.0,
-                ),
-              ),
-            );
-          },
-        );
-      }
           : null,
     );
   }

dialer/lib/services/contact_service.dart

@@ -1,4 +1,6 @@
+import 'package:flutter/material.dart';
 import 'package:flutter_contacts/flutter_contacts.dart';
+import 'package:qr_flutter/qr_flutter.dart';
 
 // Service to manage contact-related operations
 class ContactService {
@@ -15,17 +17,35 @@ class ContactService {
   }
 
   Future<List<Contact>> fetchFavoriteContacts() async {
-    // Fetch all contacts
     List<Contact> contacts = await fetchContacts();
-
+    return contacts.where((contact) => contact.isStarred).toList();
-    // Filter contacts to only include those with isStarred: true
-    List<Contact> favoriteContacts =
-        contacts.where((contact) => contact.isStarred).toList();
-
-    return favoriteContacts;
   }
 
   Future<void> addNewContact(Contact contact) async {
     await FlutterContacts.insertContact(contact);
   }
+
+  // Function to show an AlertDialog with a QR code for the contact's vCard
+  void showContactQRCodeDialog(BuildContext context, Contact contact) {
+    showDialog(
+      barrierColor: Colors.white24,
+      context: context,
+      barrierDismissible: true,
+      builder: (BuildContext context) {
+        return AlertDialog(
+          backgroundColor: Colors.black,
+          content: SizedBox(
+            width: 200,
+            height: 220,
+            child: QrImageView(
+              data: contact.toVCard(), // Generate vCard QR code
+              version: QrVersions.auto,
+              backgroundColor: Colors.white, // Make sure QR code is visible on black background
+              size: 200.0,
+            ),
+          ),
+        );
+      },
+    );
+  }
 }