More info about that "plugins as processes" ideas

todo.markdown

@@ -3,8 +3,75 @@
 ## Modules(Plugins) as processes.
 ElysiaBot would spawn processes and communicate with them over stdin, these would then communicate back through stdout and stderr.
 
-This kind of approach will allow many advantages: plugins may be written in any language, plugins may be reloaded etc.
+This kind of approach will allow many advantages: plugins may be written in any language, plugins may be reloaded, plugins can be monitored for memory usage etc.
 
 The potential disadvantage this may have is memory usage.
 
 A suitable communication protocol will have to be made, with which the plugins communicate with Elysia.
+
+### Dependancies
+Plugins could send messages to each other, therefore depend on each other.
+Perhaps an ini file could be used to store that kind of info, and detect any dependancy issues.
+
+### Compilation
+Elysia needs to know how to (compile and) run the plugin, since every plugin
+might be in a language other than haskell, for example an interpreted language.
+
+A run.sh(.bat) file will be executed at startup, or when the plugin is reloaded. 
+
+Such a file might contain something like this for Python.
+
+    python plugin.py
+
+or for haskell
+
+    ghc --make Plugin.hs
+    ./Plugin
+
+    -- or
+
+    runhaskell Plugin.hs
+
+### Communication
+Plugins will communicate through stdout and stderr, JSON is probably the best
+format to encode the IrcMessage and other useful information.
+
+Message received by Elysia
+
+    { 
+      "type": "recv"
+      "IrcMessage": 
+      {
+        "nick": "someone"
+        "user": "some"
+        "host": "user.com"
+        "server": null
+        "code": "PRIVMSG"
+        "msg":  "|hello!"
+        "chan": "#()"
+        "other": []
+        "raw": ":someone!~some@user.com PRIVMSG #() :|hello!"
+      }
+    }
+
+quit request
+
+    {
+      "type": "quit"
+    }
+
+Replies:
+
+success
+
+    {
+      "type": "success"
+    }
+
+failure
+
+    {
+      "type": "failure"
+    }
+
+