75 lines
2.1 KiB
Elixir
75 lines
2.1 KiB
Elixir
defmodule Omnibot.State do
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use GenServer
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@enforce_keys [:cfg]
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defstruct [:cfg, channels: MapSet.new()]
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## Client API
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def start_link(opts) do
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cfg = opts[:cfg]
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GenServer.start_link(__MODULE__, %Omnibot.State{
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cfg: cfg
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}, opts)
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end
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@doc "Gets the current configuration from the default State process."
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def cfg(), do: cfg(__MODULE__)
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@doc "Gets the current configuration from the given State process."
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def cfg(state) do
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GenServer.call(state, :cfg)
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end
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@doc "Gets all channels that the bot is present in from the default State process."
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def channels(), do: channels(__MODULE__)
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@doc "Gets all channels that the bot is present in from the given State process."
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def channels(state) do
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GenServer.call(state, :channels)
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end
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@doc "Adds a channel to the list of joined channels of the default State process, if it is not already present."
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def add_channel(channel), do: add_channel(__MODULE__, channel)
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@doc "Adds a channel to the list of joined channels of the given State process, if it is not already present."
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def add_channel(state, channel) do
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GenServer.cast(state, {:add_channel, channel})
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end
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@doc "Removes a channel from the list of joined channels of the default State process, if it exists."
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def remove_channel(channel), do: remove_channel(__MODULE__, channel)
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@doc "Removes a channel from the list of joined channels of the given State process, if it exists."
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def remove_channel(state, channel) do
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GenServer.cast(state, {:remove_channel, channel})
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end
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## Server API
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@impl true
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def init(state) do
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{:ok, state}
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end
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@impl true
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def handle_call(:cfg, _from, state) do
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{:reply, state.cfg, state}
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end
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@impl true
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def handle_call(:channels, _from, state) do
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{:reply, state.channels, state}
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end
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@impl true
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def handle_cast({:add_channel, channel}, state) do
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{:noreply, %{state | channels: state.channels |> MapSet.put(channel)}}
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end
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@impl true
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def handle_cast({:remove_channel, channel}, state) do
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{:noreply, %{state | channels: state.channels |> MapSet.delete(channel)}}
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end
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end
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