Initial commit with IRC and bot example.

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

lib/router.ex

@@ -0,0 +1,61 @@
+defmodule Omnibot.Router do
+  require Logger
+  alias Omnibot.{Config, Irc, Irc.Msg, State}
+  
+  def route(irc, msg) do
+    case String.upcase(msg.command) do
+      "PRIVMSG" -> handle(irc, :privmsg, msg)
+      "JOIN" -> handle(irc, :join, msg)
+      "KICK" -> handle(irc, :kick, msg)
+      "PART" -> handle(irc, :part, msg)
+      "PING" -> handle(irc, :ping, msg)
+      "001" -> handle(irc, :welcome, msg)
+      _ -> nil
+    end
+  end
+
+  def handle(_irc, :privmsg, msg) do
+    # TODO : get channel, pass along to modules
+    [channel | params] = msg.params
+    line = Enum.join(params, " ")
+    nick = msg.prefix.nick
+
+    # Find modules that want this message
+    State.cfg()
+      |> Config.channel_modules(channel)
+      |> Enum.each(fn {module, _} -> module.privmsg(module, channel, nick, line) end)
+  end
+
+  def handle(_irc, :join, %Msg {prefix: %Msg.Prefix{nick: nick}, params: [channel | _]}) do
+    cfg = State.cfg()
+    if nick == cfg.nick do
+      State.add_channel(channel)
+    end
+  end
+
+  def handle(irc, :kick, %Msg {params: [channel, who | _]}) do
+    cfg = State.cfg()
+    if who == cfg.nick do
+      State.remove_channel(State, channel)
+      # sync_channels here because this is a state that we (should) not have put ourselves into
+      Irc.sync_channels(irc)
+    end
+  end
+
+  def handle(_irc, :part, %Msg {prefix: %Msg.Prefix{nick: nick}, params: [channel | _]}) do
+    cfg = State.cfg()
+    if nick == cfg.nick do
+      State.remove_channel(State, channel)
+    end
+  end
+
+  def handle(irc, :ping, msg) do
+    cfg = State.cfg()
+    reply = Config.msg(cfg, "PONG", msg.params)
+    Irc.send_msg(irc, reply)
+  end
+
+  def handle(irc, :welcome, _msg) do
+    Irc.sync_channels(irc)
+  end
+end