import asyncio
import logging
import sys

from aiohttp.web import Application
from cachetools import LRUCache

from . import set_app
from . import views
from .config import DotDict, RelayConfig
from .database import RelayDatabase
from .middleware import http_signatures_middleware


app = Application(middlewares=[
    http_signatures_middleware
])

app['config'] = RelayConfig('relay.yaml')

if not app['config'].load():
	app['config'].save()

	logging.error('Relay is not setup. Change the host in relay.yaml at the least and try again')
	sys.exit(1)

app['database'] = RelayDatabase(app['config'])
app['database'].load()

app['cache'] = DotDict()
app['semaphore'] = asyncio.Semaphore(app['config']['push_limit'])

for key in app['config'].cachekeys:
	app['cache'][key] = LRUCache(app['config'][key])

set_app(app)