WIP: Wordbot

Wordbot is a little more complex of a bot module and I've been working
on it here.

Other than wordbot module, a few minor tweaks have been added all around
that don't really affect anything.

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

lib/contrib/wordbot/bot.ex

@@ -0,0 +1,35 @@
+defmodule Omnibot.Contrib.Wordbot.Bot do
+  use Omnibot.Module
+
+  alias Omnibot.Contrib.Wordbot
+
+  @split_pattern ~r/[\s\b]+/
+
+  command "!wordbot", ["leaderboard"] do
+    Irc.send_to(irc, channel, "leaderboard logic here")
+  end
+
+  @impl true
+  def on_init(cfg) do
+    Wordbot.Db.ensure_db()
+    File.read!(cfg[:wordbot_source])
+      |> String.split("\n")
+  end
+
+  @impl true
+  def on_channel_msg(irc, channel, nick, msg) do
+    words = Regex.split(@split_pattern, msg) |> MapSet.new()
+    game_words = Wordbot.Db.unmatched_words(channel) |> MapSet.new()
+    MapSet.intersection(words, game_words)
+      |> Enum.each(fn word ->
+        Wordbot.Db.add_score(channel, nick, word, msg)
+        Irc.send_to(irc, channel, "#{nick}: Congrats! '#{word}' is good for 1 point.")
+      end)
+  end
+
+  @impl true
+  def on_join(_irc, _channel, _who) do
+    # TODO start games
+    # * Tasks for watching games(?)
+  end
+end