From 5036a8da5928176f18a2f2f477184d680da05db1 Mon Sep 17 00:00:00 2001
From: AmanRajSinghMourya <amanrajmourya7@gmail.com>
Date: Fri, 29 Aug 2025 20:20:16 +0530
Subject: [PATCH] Add method to leave collection

---
 .../collections/collections_api_client.dart   | 27 +++++++++-
 .../collections/collections_service.dart      |  5 +-
 .../locker/lib/utils/collection_actions.dart  | 50 ++++++++++++++++++-
 3 files changed, 77 insertions(+), 5 deletions(-)

diff --git a/mobile/apps/locker/lib/services/collections/collections_api_client.dart b/mobile/apps/locker/lib/services/collections/collections_api_client.dart
index 9867e3880b..e4e0d1fc60 100644
--- a/mobile/apps/locker/lib/services/collections/collections_api_client.dart
+++ b/mobile/apps/locker/lib/services/collections/collections_api_client.dart
@@ -171,6 +171,26 @@ class CollectionApiClient {
     }
   }
 
+  Future<void> leaveCollection(Collection collection) async {
+    try {
+      await _enteDio.post(
+        "/collections/leave/${collection.id}",
+      );
+      await _handleCollectionDeletion(collection);
+      Bus.instance.fire(CollectionsUpdatedEvent());
+    } catch (e, s) {
+      _logger.severe("failed to leave collection", e, s);
+      rethrow;
+    }
+  }
+
+  Future<void> _handleCollectionDeletion(Collection collection) async {
+    await _db.deleteCollection(collection);
+    final deletedCollection = collection.copyWith(isDeleted: true);
+    unawaited(_db.updateCollections([deletedCollection]));
+    CollectionService.instance.updateCollectionCache(deletedCollection);
+  }
+
   Future<void> move(
     EnteFile file,
     Collection fromCollection,
@@ -423,8 +443,13 @@ class CollectionApiClient {
       await _db.updateCollections([collection]);
       CollectionService.instance.updateCollectionCache(collection);
       Bus.instance.fire(CollectionsUpdatedEvent());
+    } on DioException catch (e) {
+      if (e.response?.statusCode == 402) {
+        throw SharingNotPermittedForFreeAccountsError();
+      }
+      rethrow;
     } catch (e, s) {
-      _logger.severe('Failed to create share URL for collection', e, s);
+      _logger.severe("failed to rename collection", e, s);
       rethrow;
     }
   }
diff --git a/mobile/apps/locker/lib/services/collections/collections_service.dart b/mobile/apps/locker/lib/services/collections/collections_service.dart
index c2d92a9798..b92b2b568d 100644
--- a/mobile/apps/locker/lib/services/collections/collections_service.dart
+++ b/mobile/apps/locker/lib/services/collections/collections_service.dart
@@ -59,6 +59,9 @@ class CollectionService {
         _init();
       });
     }
+    Bus.instance.on<CollectionsUpdatedEvent>().listen((event) {
+      _init();
+    });
   }
 
   Future<void> sync() async {
@@ -401,8 +404,6 @@ class CollectionService {
   ///   - Owners of collections shared to user.
   ///   - All collaborators of collections in which user is a collaborator or
   ///     a viewer.
-  ///   - All family members of user.
-  ///   - All contacts linked to a person.
   List<User> getRelevantContacts() {
     final List<User> relevantUsers = [];
     final existingEmails = <String>{};
diff --git a/mobile/apps/locker/lib/utils/collection_actions.dart b/mobile/apps/locker/lib/utils/collection_actions.dart
index ce17a4420e..d0a014e573 100644
--- a/mobile/apps/locker/lib/utils/collection_actions.dart
+++ b/mobile/apps/locker/lib/utils/collection_actions.dart
@@ -171,6 +171,53 @@ class CollectionActions {
     }
   }
 
+  static Future<void> leaveCollection(
+    BuildContext context,
+    Collection collection, {
+    VoidCallback? onSuccess,
+  }) async {
+    final actionResult = await showActionSheet(
+      context: context,
+      buttons: [
+        ButtonWidget(
+          buttonType: ButtonType.critical,
+          isInAlert: true,
+          shouldStickToDarkTheme: true,
+          buttonAction: ButtonAction.first,
+          shouldSurfaceExecutionStates: true,
+          labelText: context.l10n.leaveCollection,
+          onTap: () async {
+            await CollectionApiClient.instance.leaveCollection(collection);
+          },
+        ),
+        ButtonWidget(
+          buttonType: ButtonType.secondary,
+          buttonAction: ButtonAction.cancel,
+          isInAlert: true,
+          shouldStickToDarkTheme: true,
+          labelText: context.l10n.cancel,
+        ),
+      ],
+      title: context.l10n.leaveCollection,
+      body: context.l10n.filesAddedByYouWillBeRemovedFromTheCollection,
+    );
+    if (actionResult?.action != null && context.mounted) {
+      if (actionResult!.action == ButtonAction.error) {
+        await showGenericErrorDialog(
+          context: context,
+          error: actionResult.exception,
+        );
+      } else if (actionResult.action == ButtonAction.first) {
+        onSuccess?.call();
+        Navigator.of(context).pop();
+        SnackBarUtils.showInfoSnackBar(
+          context,
+          "Leave collection successfully",
+        );
+      }
+    }
+  }
+
   static Future<bool> enableUrl(
     BuildContext context,
     Collection collection, {
@@ -411,7 +458,7 @@ class CollectionActions {
     }
   }
 
-    // removeParticipant remove the user from a share album
+  // removeParticipant remove the user from a share album
   Future<bool> removeParticipant(
     BuildContext context,
     Collection collection,
@@ -455,5 +502,4 @@ class CollectionActions {
     }
     return false;
   }
-
 }