#!/usr/bin/env python3
"""
The primary module for serving the Aberrant application.
"""
import json

import jinja2
import aiohttp_jinja2
from aiohttp import web, WSMsgType
from aiohttp_jinja2 import render_template

import config
import events
import rtorrent

app = web.Application()
app.on_shutdown.append(rtorrent.stop_watch)
aiohttp_jinja2.setup(app, loader=jinja2.FileSystemLoader('templates'))
rtorrent.init()

routes = web.RouteTableDef()

@routes.get(config.prefix + "/", name='index')
async def index(request):
	"""The index page."""
	torrents = rtorrent.get_active()
	tracker_stats = rtorrent.get_stats()
	return render_template("index.html", request, locals())

@routes.get(config.prefix + "/get_active_torrents", name='active-torrents')
async def get_active_torrents(request):
	"""Returns all active torrents formatted as JSON."""
	data = [vars(t) for t in rtorrent.get_active()]
	return web.json_response(data)

@routes.get(config.prefix + '/ws', name='ws')
async def websocket_handler(request):
	"""The websocket endpoint."""
	ws = web.WebSocketResponse()
	ws_ready = ws.can_prepare(request)
	if not ws_ready.ok:
		return web.Response(text="Cannot start websocket.")
	await ws.prepare(request)

	async for msg in ws:
		if msg.type == WSMsgType.TEXT:
			try:
				data = json.loads(msg.data)
			except json.JSONDecodeError:
				continue

			event = data.get('event')
			if not event or event not in events.events.keys():
				continue

			await events.events[event](ws, data.get('data'))
		else: # TODO: handle differnt message types properly
			break
	await ws.close()
	return ws

app.router.add_routes(routes)

if __name__ == "__main__":
	aiohttp.web.run_app(app, host='0.0.0.0', port=5250)