feat: add group ownership transfer

crates/delta/src/routes/channels/channel_edit.rs

@@ -16,19 +16,18 @@ use validator::Validate;
 pub struct DataEditChannel {
     /// Channel name
     #[validate(length(min = 1, max = 32))]
-    #[serde(skip_serializing_if = "Option::is_none")]
     name: Option<String>,
     /// Channel description
     #[validate(length(min = 0, max = 1024))]
-    #[serde(skip_serializing_if = "Option::is_none")]
     description: Option<String>,
+    /// Group owner
+    owner: Option<String>,
     /// Icon
     ///
     /// Provide an Autumn attachment Id.
     #[validate(length(min = 1, max = 128))]
     icon: Option<String>,
     /// Whether this channel is age-restricted
-    #[serde(skip_serializing_if = "Option::is_none")]
     nsfw: Option<bool>,
     #[validate(length(min = 1))]
     remove: Option<Vec<FieldsChannel>>,
@@ -59,12 +58,47 @@ pub async fn req(
         && data.description.is_none()
         && data.icon.is_none()
         && data.nsfw.is_none()
+        && data.owner.is_none()
         && data.remove.is_none()
     {
         return Ok(Json(channel));
     }
 
     let mut partial: PartialChannel = Default::default();
+
+    // Transfer group ownership
+    if let Some(new_owner) = data.owner {
+        if let Channel::Group {
+            owner, recipients, ..
+        } = &mut channel
+        {
+            // Make sure we are the owner of this group
+            if owner != &user.id {
+                return Err(Error::NotOwner);
+            }
+
+            // Ensure user is part of group
+            if !recipients.contains(&new_owner) {
+                return Err(Error::NotInGroup);
+            }
+
+            // Transfer ownership
+            *owner = new_owner.to_string();
+
+            // Notify clients
+            SystemMessage::ChannelOwnershipChanged {
+                from: owner.to_string(),
+                to: new_owner,
+            }
+        } else {
+            return Err(Error::InvalidOperation);
+        }
+        .into_message(channel.id().to_string())
+        .create(db, &channel, None)
+        .await
+        .ok();
+    }
+
     match &mut channel {
         Channel::Group {
             id,

crates/quark/src/impl/generic/channels/channel.rs

@@ -305,6 +305,15 @@ impl Channel {
                             vec![],
                         )
                         .await?;
+
+                        SystemMessage::ChannelOwnershipChanged {
+                            from: owner.to_string(),
+                            to: new_owner.into(),
+                        }
+                        .into_message(id.to_string())
+                        .create(db, self, None)
+                        .await
+                        .ok();
                     } else {
                         db.delete_channel(self).await?;
                         return Ok(());

crates/quark/src/impl/generic/channels/message.rs

@@ -262,6 +262,9 @@ impl From<SystemMessage> for String {
                 "Channel description changed.".to_string()
             }
             SystemMessage::ChannelIconChanged { .. } => "Channel icon changed.".to_string(),
+            SystemMessage::ChannelOwnershipChanged { .. } => {
+                "Channel ownership changed.".to_string()
+            }
         }
     }
 }

crates/quark/src/models/channels/message.rs

@@ -63,6 +63,8 @@ pub enum SystemMessage {
     ChannelDescriptionChanged { by: String },
     #[serde(rename = "channel_icon_changed")]
     ChannelIconChanged { by: String },
+    #[serde(rename = "channel_ownership_changed")]
+    ChannelOwnershipChanged { from: String, to: String },
 }
 
 /// Name and / or avatar override information

crates/quark/src/util/result.rs

@@ -72,6 +72,7 @@ pub enum Error {
     },
     NotElevated,
     CannotGiveMissingPermissions,
+    NotOwner,
 
     // ? General errors.
     DatabaseError {
@@ -167,6 +168,7 @@ impl<'r> Responder<'r, 'static> for Error {
             Error::MissingUserPermission { .. } => Status::Forbidden,
             Error::NotElevated => Status::Forbidden,
             Error::CannotGiveMissingPermissions => Status::Forbidden,
+            Error::NotOwner => Status::Forbidden,
 
             Error::DatabaseError { .. } => Status::InternalServerError,
             Error::InternalError => Status::InternalServerError,

docker-compose.yml

@@ -50,6 +50,7 @@ services:
       /usr/bin/mc mb minio/backgrounds;
       /usr/bin/mc mb minio/icons;
       /usr/bin/mc mb minio/banners;
+      /usr/bin/mc mb minio/emojis;
       exit 0;
       "
   # File server (autumn)