Commit 69f1024b authored by lain's avatar lain

Add basic channel state.

parent d01243c1
......@@ -20,6 +20,7 @@ def start(_type, _args) do
limit: 2500
]]),
worker(Pleroma.Web.Federator, []),
worker(Pleroma.Web.ChatChannel.ChatChannelState, []),
]
++ if Mix.env == :test, do: [], else: [worker(Pleroma.Web.Streamer, [])]
......
defmodule Pleroma.Web.ChatChannel do
use Phoenix.Channel
alias Pleroma.Web.ChatChannel.ChatChannelState
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}, socket) do
author = socket.assigns[:user]
author = Pleroma.Web.MastodonAPI.AccountView.render("account.json", user: author)
broadcast! socket, "new_msg", %{text: text, author: author}
message= ChatChannelState.add_message(%{text: text, author: author})
broadcast! socket, "new_msg", message
{:noreply, socket}
end
end
defmodule Pleroma.Web.ChatChannel.ChatChannelState do
use Agent
@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
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