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>

test/contrib/wordbot/db_test.exs

@@ -0,0 +1,54 @@
+defmodule WordbotDbTest do
+  use ExUnit.Case
+
+  alias Omnibot.Contrib.Wordbot
+
+  setup do
+    start_supervised!(Wordbot.Db.child_spec(":memory:"))
+    Wordbot.Db.ensure_db()
+    :ok
+  end
+
+  test "game starts round correctly" do
+    :ok = Wordbot.Db.start_round("test", [], 60)
+    assert Wordbot.Db.game_id!("test") == 1
+    :ok = Wordbot.Db.start_round("foo", [], 60)
+    assert Wordbot.Db.game_id!("foo") == 2
+
+    {:error, :game_running} = Wordbot.Db.start_round("foo", [], 60)
+    :ok = Wordbot.Db.start_round("foo", [], 60, end_early: true)
+    assert Wordbot.Db.game_id!("foo") == 3
+  end
+
+  test "game keeps track of words" do
+    :ok = Wordbot.Db.start_round("test", ~w(a b c d), 60)
+    assert Wordbot.Db.words("test") == ~w(a b c d)
+
+    :ok = Wordbot.Db.start_round("foo", ~w(e f g h), 60)
+    assert Wordbot.Db.words("foo") == ~w(e f g h)
+  end
+
+  test "game keeps track of scores" do
+    :ok = Wordbot.Db.start_round("test", ~w(a b c d), 60)
+    Wordbot.Db.add_score("test", "user1", "a", "this is a line")
+    Wordbot.Db.add_score("test", "user1", "b", "this is b line")
+    Wordbot.Db.add_score("test", "user2", "c", "this is b line")
+    
+    scores = Wordbot.Db.scores("test")
+    assert Enum.member?(scores, %{user: "user1", score: 2})
+    assert Enum.member?(scores, %{user: "user2", score: 1})
+
+    :ok = Wordbot.Db.start_round("test", ~w(a b c d), 60, end_early: true)
+    scores = Wordbot.Db.scores("test")
+    assert scores == []
+  end
+
+  test "game keeps track of unmatched words" do
+    :ok = Wordbot.Db.start_round("test", ~w(a b c d), 60)
+    assert Wordbot.Db.unmatched_words("test") == ~w(a b c d)
+    Wordbot.Db.add_score("test", "user1", "a", "this is a line")
+    Wordbot.Db.add_score("test", "user1", "b", "this is a line")
+    Wordbot.Db.add_score("test", "user1", "d", "this is a line")
+    assert Wordbot.Db.unmatched_words("test") == ~w(c)
+  end
+end