Merge branch 'develop' of git.pleroma.social:pleroma/pleroma into remake-remodel-dms

[akkoma] / lib / pleroma / chat.ex

diff --git a/lib/pleroma/chat.ex b/lib/pleroma/chat.ex
index e2a8b8eba32faad170b3f99cf33eb1d76be11382..4c92a58c737fffd678416fa1beae2c498ce49597 100644 (file)
--- a/lib/pleroma/chat.ex
+++ b/lib/pleroma/chat.ex
@@ -4,13 +4,16 @@
 
 defmodule Pleroma.Chat do
   use Ecto.Schema
+
   import Ecto.Changeset
+  import Ecto.Query
 
-  alias Pleroma.User
+  alias Pleroma.Object
   alias Pleroma.Repo
+  alias Pleroma.User
 
   @moduledoc """
-  Chat keeps a reference to DirectMessage conversations between a user and an recipient. The recipient can be a user (for now) or a group (not implemented yet).
+  Chat keeps a reference to ChatMessage conversations between a user and an recipient. The recipient can be a user (for now) or a group (not implemented yet).
 
   It is a helper only, to make it easy to display a list of chats with other people, ordered by last bump. The actual messages are retrieved by querying the recipients of the ChatMessages.
   """
@@ -18,24 +21,85 @@ defmodule Pleroma.Chat do
   schema "chats" do
     belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
     field(:recipient, :string)
-    field(:unread, :integer, default: 0)
+    field(:unread, :integer, default: 0, read_after_writes: true)
 
     timestamps()
   end
 
+  def last_message_for_chat(chat) do
+    messages_for_chat_query(chat)
+    |> order_by(desc: :id)
+    |> limit(1)
+    |> Repo.one()
+  end
+
+  def messages_for_chat_query(chat) do
+    chat =
+      chat
+      |> Repo.preload(:user)
+
+    from(o in Object,
+      where: fragment("?->>'type' = ?", o.data, "ChatMessage"),
+      where:
+        fragment(
+          """
+          (?->>'actor' = ? and ?->'to' = ?) 
+          OR (?->>'actor' = ? and ?->'to' = ?) 
+          """,
+          o.data,
+          ^chat.user.ap_id,
+          o.data,
+          ^[chat.recipient],
+          o.data,
+          ^chat.recipient,
+          o.data,
+          ^[chat.user.ap_id]
+        )
+    )
+  end
+
   def creation_cng(struct, params) do
     struct
-    |> cast(params, [:user_id, :recipient])
+    |> cast(params, [:user_id, :recipient, :unread])
+    |> validate_change(:recipient, fn
+      :recipient, recipient ->
+        case User.get_cached_by_ap_id(recipient) do
+          nil -> [recipient: "must be an existing user"]
+          _ -> []
+        end
+    end)
     |> validate_required([:user_id, :recipient])
     |> unique_constraint(:user_id, name: :chats_user_id_recipient_index)
   end
 
+  def get(user_id, recipient) do
+    __MODULE__
+    |> Repo.get_by(user_id: user_id, recipient: recipient)
+  end
+
   def get_or_create(user_id, recipient) do
     %__MODULE__{}
     |> creation_cng(%{user_id: user_id, recipient: recipient})
     |> Repo.insert(
-      on_conflict: [set: [updated_at: NaiveDateTime.utc_now()]],
+      # Need to set something, otherwise we get nothing back at all
+      on_conflict: [set: [recipient: recipient]],
+      returning: true,
       conflict_target: [:user_id, :recipient]
     )
   end
+
+  def bump_or_create(user_id, recipient) do
+    %__MODULE__{}
+    |> creation_cng(%{user_id: user_id, recipient: recipient, unread: 1})
+    |> Repo.insert(
+      on_conflict: [set: [updated_at: NaiveDateTime.utc_now()], inc: [unread: 1]],
+      conflict_target: [:user_id, :recipient]
+    )
+  end
+
+  def mark_as_read(chat) do
+    chat
+    |> change(%{unread: 0})
+    |> Repo.update()
+  end
 end