Initial commit with functional framework(!) and example plugin

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

omnibot/plugin.py

@@ -0,0 +1,60 @@
+import importlib
+import logging
+from typing import Sequence
+
+from asyncirc.protocol import IrcProtocol
+from irclib.parser import Message, Prefix
+
+from .config import PluginConfig, ServerConfig
+
+
+log = logging.getLogger(__name__)
+
+
+class Plugin:
+    def __init__(self, server_config: ServerConfig, plugin_config: PluginConfig):
+        self.__server_config = server_config
+        self.__plugin_config = plugin_config
+
+    @property
+    def channels(self) -> Sequence[str]:
+        if "channels" in self.plugin_config:
+            return self.plugin_config["channels"]
+        else:
+            return self.server_config.channels
+
+    @property
+    def plugin_config(self) -> PluginConfig:
+        return self.__plugin_config
+
+    @property
+    def server_config(self) -> ServerConfig:
+        return self.__server_config
+
+    @property
+    def nick(self) -> str:
+        return self.server_config.nick
+
+    def send_to(self, conn: IrcProtocol, who: str, message: str):
+        message = Message(None, None, "PRIVMSG", who, message)
+        conn.send(str(message))
+
+    async def on_join(self, conn: IrcProtocol, channel: str, who: Prefix):
+        pass
+
+    async def on_part(self, conn: IrcProtocol, channel: str, who: Prefix):
+        pass
+
+    async def on_kick(self, conn: IrcProtocol, channel: str, who: Prefix):
+        pass
+
+    async def on_message(self, conn: IrcProtocol, channel: str, who: Prefix, line: str):
+        pass
+
+
+def load_plugin(server_config: ServerConfig, plugin_config: PluginConfig) -> Plugin:
+    name = plugin_config["module"]
+    log.info("Loading plugin %s", name)
+    plugin_module = importlib.import_module(name)
+    PluginType = plugin_module.PLUGIN_TYPE
+    return PluginType(server_config, plugin_config)