5 files changed, 37 insertions, 9 deletions
diff --git a/lib/pleroma/conversation.ex b/lib/pleroma/conversation.ex
index 8812b456d..828e27450 100644
--- a/lib/pleroma/conversation.ex
+++ b/lib/pleroma/conversation.ex
@@ -61,9 +61,8 @@ defmodule Pleroma.Conversation do
          "Create" <- activity.data["type"],
          %Object{} = object <- Object.normalize(activity, fetch: false),
          true <- object.data["type"] in ["Note", "Question"],
-         ap_id when is_binary(ap_id) and byte_size(ap_id) > 0 <- object.data["context"] do
-      {:ok, conversation} = create_for_ap_id(ap_id)
-
+         ap_id when is_binary(ap_id) and byte_size(ap_id) > 0 <- object.data["context"],
+         {:ok, conversation} <- create_for_ap_id(ap_id) do
       users = User.get_users_from_set(activity.recipients, local_only: false)
 
       participations =
diff --git a/lib/pleroma/conversation/participation.ex b/lib/pleroma/conversation/participation.ex
index da5e57714..e0a3af28b 100644
--- a/lib/pleroma/conversation/participation.ex
+++ b/lib/pleroma/conversation/participation.ex
@@ -220,4 +220,8 @@ defmodule Pleroma.Conversation.Participation do
       select: %{count: count(p.id)}
     )
   end
+
+  def delete(%__MODULE__{} = participation) do
+    Repo.delete(participation)
+  end
 end
diff --git a/lib/pleroma/web/api_spec/operations/conversation_operation.ex b/lib/pleroma/web/api_spec/operations/conversation_operation.ex
index 367f4125a..17ed1af5e 100644
--- a/lib/pleroma/web/api_spec/operations/conversation_operation.ex
+++ b/lib/pleroma/web/api_spec/operations/conversation_operation.ex
@@ -46,16 +46,31 @@ defmodule Pleroma.Web.ApiSpec.ConversationOperation do
       tags: ["Conversations"],
       summary: "Mark conversation as read",
       operationId: "ConversationController.mark_as_read",
-      parameters: [
-        Operation.parameter(:id, :path, :string, "Conversation ID",
-          example: "123",
-          required: true
-        )
-      ],
+      parameters: [id_param()],
       security: [%{"oAuth" => ["write:conversations"]}],
       responses: %{
         200 => Operation.response("Conversation", "application/json", Conversation)
       }
     }
   end
+
+  def delete_operation do
+    %Operation{
+      tags: ["Conversations"],
+      summary: "Remove conversation",
+      operationId: "ConversationController.delete",
+      parameters: [id_param()],
+      security: [%{"oAuth" => ["write:conversations"]}],
+      responses: %{
+        200 => empty_object_response()
+      }
+    }
+  end
+
+  def id_param do
+    Operation.parameter(:id, :path, :string, "Conversation ID",
+      example: "123",
+      required: true
+    )
+  end
 end
diff --git a/lib/pleroma/web/mastodon_api/controllers/conversation_controller.ex b/lib/pleroma/web/mastodon_api/controllers/conversation_controller.ex
index 4526d3c7a..f2a0949e8 100644
--- a/lib/pleroma/web/mastodon_api/controllers/conversation_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/conversation_controller.ex
@@ -36,4 +36,13 @@ defmodule Pleroma.Web.MastodonAPI.ConversationController do
       render(conn, "participation.json", participation: participation, for: user)
     end
   end
+
+  @doc "DELETE /api/v1/conversations/:id"
+  def delete(%{assigns: %{user: user}} = conn, %{id: participation_id}) do
+    with %Participation{} = participation <-
+           Repo.get_by(Participation, id: participation_id, user_id: user.id),
+         {:ok, _} <- Participation.delete(participation) do
+      json(conn, %{})
+    end
+  end
 end
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index 297f03fbd..e71686d31 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -443,6 +443,7 @@ defmodule Pleroma.Web.Router do
 
     get("/conversations", ConversationController, :index)
     post("/conversations/:id/read", ConversationController, :mark_as_read)
+    delete("/conversations/:id", ConversationController, :delete)
 
     get("/domain_blocks", DomainBlockController, :index)
     post("/domain_blocks", DomainBlockController, :create)