46 lines
1.3 KiB
Elixir
46 lines
1.3 KiB
Elixir
defmodule Pleroma.Web.ChatChannel do
|
|
use Phoenix.Channel
|
|
alias Pleroma.Web.ChatChannel.ChatChannelState
|
|
alias Pleroma.User
|
|
|
|
def join("chat:public", _message, socket) do
|
|
send(self(), :after_join)
|
|
{:ok, socket}
|
|
end
|
|
|
|
def handle_info(:after_join, socket) do
|
|
push socket, "messages", %{messages: ChatChannelState.messages()}
|
|
{:noreply, socket}
|
|
end
|
|
|
|
def handle_in("new_msg", %{"text" => text}, %{assigns: %{user_name: user_name}} = socket) do
|
|
author = User.get_cached_by_nickname(user_name)
|
|
author = Pleroma.Web.MastodonAPI.AccountView.render("account.json", user: author)
|
|
message = ChatChannelState.add_message(%{text: text, author: author})
|
|
|
|
broadcast! socket, "new_msg", message
|
|
{:noreply, socket}
|
|
end
|
|
end
|
|
|
|
defmodule Pleroma.Web.ChatChannel.ChatChannelState do
|
|
@max_messages 20
|
|
|
|
def start_link do
|
|
Agent.start_link(fn -> %{max_id: 1, messages: []} end, name: __MODULE__)
|
|
end
|
|
|
|
def add_message(message) do
|
|
Agent.get_and_update(__MODULE__, fn state ->
|
|
id = state[:max_id] + 1
|
|
message = Map.put(message, "id", id)
|
|
messages = [message | state[:messages]] |> Enum.take(@max_messages)
|
|
{message, %{max_id: id, messages: messages}}
|
|
end)
|
|
end
|
|
|
|
def messages() do
|
|
Agent.get(__MODULE__, fn state -> state[:messages] |> Enum.reverse end)
|
|
end
|
|
end
|