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