add HTTP API to the bot

we use aiohttp and directly grab the discord bot's asyncio handler to
create a shared loop. things seem to work?

bot/api.py

@@ -0,0 +1,22 @@
+"""Create a simple API to the bot."""
+from aiohttp import web
+
+
+async def index(request):
+    """Provide a basic index to the API."""
+    return web.Response(text="hitomi")
+
+
+async def greet(request):
+    """Provide a simple greeting."""
+    name = request.match_info.get('name', 'Anonymous')
+    text = "Hello {0:s}".format(name)
+    return web.Response(text=text)
+
+# initialize the API
+hitomi_api = web.Application()
+
+# add our basic stuff above
+hitomi_api.router.add_get('/', index)
+hitomi_api.router.add_get('/greet', greet)
+hitomi_api.router.add_get('/greet/{name}', greet)

bot/management/commands/starthitomi.py

@@ -1,8 +1,11 @@
 """Start the Discord bot and connect to Discord."""
+import asyncio
+
 from django.conf import settings
 from django.core.management.base import BaseCommand
 
 from bot import hitomi
+from bot.api import hitomi_api
 
 
 @hitomi.event
@@ -11,8 +14,23 @@ async def on_ready():
     print("Logged in as {0:s} ({1:s})".format(hitomi.user.name, hitomi.user.id))
 
 
+async def run_bot():
+    """Initialize and begin the bot in an asyncio context."""
+    await hitomi.login(settings.DISCORD_BOT_TOKEN)
+    await hitomi.connect()
+
+
 class Command(BaseCommand):
     help = "Start the Discord bot and connect to Discord."
 
     def handle(self, *args, **options):
-        hitomi.run(settings.DISCORD_BOT_TOKEN)
+        loop = asyncio.get_event_loop()
+        handler = hitomi_api.make_handler()
+        api_server = loop.create_server(handler, '0.0.0.0', 8080)
+        futures = asyncio.gather(run_bot(), api_server)
+        try:
+            loop.run_until_complete(futures)
+        except:
+            loop.run_until_complete(hitomi.logout())
+        finally:
+            loop.close()