Slap responder (#15)

* add slap responder

* update readme

README.md

@@ -43,17 +43,20 @@ The standup reminder reminds us when its standup time. Our nature is that we eit
 
 ### Responders
 
-Currently, there are two responders:
+Currently, there are three responders and these should ideally work with any Hedwig adapters:
 
-One is `ExMustang.Responders.GMap` which gives you search result for your search queries.
-Other is `ExMustang.Responders.Quote` which gives you random quote.
+- `ExMustang.Responders.GMap` - gives you google maps search result for your search queries.
+- `ExMustang.Responders.Quote` - gives you random funny quote
+- `ExMustang.Responders.Slap` - slaps another user
 
 For Google Maps search, you have to set `GOOGLE_API_KEY` which has access to call google places api.
 
 ```shell
-mustang help - Displays help message
+mustang help - Displays all of the help commands that mustang knows about.
+mustang help <query> - Displays all help commands that match <query>.
 gmap <search_term> - Replies with the information from google places/maps.
-quote - Displays random quote
+quote - Replies with a random quote.
+slap - Slaps the user. Format: slap <username> | me
 ```
 
 ### About Mustang

config/config.exs

@@ -27,7 +27,8 @@ config :ex_mustang, ExMustang.Robot,
   responders: [
     {Hedwig.Responders.Help, []},
     {ExMustang.Responders.GMap, []},
-    {ExMustang.Responders.Quote, []}
+    {ExMustang.Responders.Quote, []},
+    {ExMustang.Responders.Slap, []}
   ]
 
 config :quantum, timezone: System.get_env("SYSTEM_TIME") || "America/Chicago"

lib/ex_mustang/responders/slap.ex

@@ -0,0 +1,47 @@
+defmodule ExMustang.Responders.Slap do
+  @moduledoc """
+  Slap user on slack around a bit with a large trout
+
+  `slap <username> | me
+  """
+  use Hedwig.Responder
+
+  @emoticon ":fish:"
+  # banters copied from https://github.com/spfr/slapbot/blob/master/helpers.js#L2-L19
+  @banters [
+    "Ouch! That must hurt!",
+    "That should teach you a lesson!",
+    "Ha ha ha ha!",
+    "Damn milenial!",
+    "Take that, you fool!",
+    "Feel the pain!",
+    "You probably still use Notepad++...",
+    "Your pull request is horrible.",
+    "Your JIRA ticket sucks.",
+    "Your Trello card is lame. Do you even Markdown bro?",
+    "Ooooh snap!",
+    "Get slapped, son!",
+    "Your bloody hipster!",
+    "Now go back to work!",
+    "Go buy us some Ice Cream!",
+    "Why don’t you go back to your desk and tail call yourself?",
+    "Are you a priest? Your code is running on pure faith and no logic…",
+    "Your code, just like C, has no class!"
+  ]
+
+  @usage """
+  slap - Slaps the user. Format: slap <username> | me
+  """
+  hear ~r/^slap\s*me/i, msg do
+    emote msg, build_msg(msg.user.id)
+    emote msg, random(@banters)
+  end
+  hear ~r/^slap\s*<@(?<user>\w+)>.*$/i, msg do
+    emote msg, build_msg(msg.matches["user"])
+    emote msg, random(@banters)
+  end
+
+  defp build_msg(user) do
+    "slaps <@#{user}> around a bit with a large trout #{@emoticon}"
+  end
+end