1 # Pleroma: A lightweight social networking server
2 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
3 # SPDX-License-Identifier: AGPL-3.0-only
5 defmodule Pleroma.Chat do
16 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).
18 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.
22 belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
23 field(:recipient, :string)
24 field(:unread, :integer, default: 0, read_after_writes: true)
29 def last_message_for_chat(chat) do
30 messages_for_chat_query(chat)
31 |> order_by(desc: :id)
36 def messages_for_chat_query(chat) do
39 |> Repo.preload(:user)
42 where: fragment("?->>'type' = ?", o.data, "ChatMessage"),
46 (?->>'actor' = ? and ?->'to' = ?)
47 OR (?->>'actor' = ? and ?->'to' = ?)
61 def creation_cng(struct, params) do
63 |> cast(params, [:user_id, :recipient, :unread])
64 |> validate_change(:recipient, fn
65 :recipient, recipient ->
66 case User.get_cached_by_ap_id(recipient) do
67 nil -> [recipient: "must be an existing user"]
71 |> validate_required([:user_id, :recipient])
72 |> unique_constraint(:user_id, name: :chats_user_id_recipient_index)
75 def get(user_id, recipient) do
77 |> Repo.get_by(user_id: user_id, recipient: recipient)
80 def get_or_create(user_id, recipient) do
82 |> creation_cng(%{user_id: user_id, recipient: recipient})
84 # Need to set something, otherwise we get nothing back at all
85 on_conflict: [set: [recipient: recipient]],
87 conflict_target: [:user_id, :recipient]
91 def bump_or_create(user_id, recipient) do
93 |> creation_cng(%{user_id: user_id, recipient: recipient, unread: 1})
95 on_conflict: [set: [updated_at: NaiveDateTime.utc_now()], inc: [unread: 1]],
96 conflict_target: [:user_id, :recipient]
100 def mark_as_read(chat) do
102 |> change(%{unread: 0})