import os.path
from tornado import gen, web, websocket, escape, options
from tornado.ioloop import IOLoop
from tornado.httpserver import HTTPServer
from tornado.options import parse_command_line

import psycopg2
import momoko


settings = {
    'cookie_secret': '__TODO:_GENERATE_YOUR_OWN_RANDOM_VALUE_HERE__',
    'template_path': os.path.join(os.path.dirname(__file__), 'templates'),
    'static_path': os.path.join(os.path.dirname(__file__), 'static'),
    'login_url': '/login',
    'xsrf_cookies': True,
    'debug': True,
    'autoreload': True,
    'server_traceback': True,
}

class BaseHandler(web.RequestHandler):
    @property
    def db(self):
        return self.application.db


class TutorialHandler(websocket.WebSocketHandler):

    @property
    def db(self):
        return self.application.db

    waiters = set()

    def open(self, *args, **kwargs):
        self.waiters.add(self)
        # cursor = self.db.execute("SELECT * FROM users_user WHERE id=2")
        # data = cursor.fetchone()
        print({'hello': 'test'})

    @gen.coroutine
    def on_message(self, message):
        parsed = escape.json_decode(message)
        if 'dummy' in parsed:
            return

        insert_sql = "INSERT INTO chat_message (id,text,created,order_id, user_id) VALUES (DEFAULT,'{0}',NOW(),6,4)".format(str(parsed['message']))

        yield self.db.execute(insert_sql)

        cursor = yield self.db.execute("SELECT * FROM chat_message")
        data = cursor.fetchall()

        for waiter in self.waiters:
            waiter.write_message({'msg': parsed['message']})


    def check_origin(self, origin):
        return True
    # @gen.coroutine
    # def get(self):
    #     cursor = yield self.db.execute("SELECT * FROM users_user WHERE id=2")
    #     data = cursor.fetchone()
    #     print(data[0])
    #     self.finish()


class Application(web.Application):

    def __init__(self):
        handlers = [
            (r"/chat", TutorialHandler),
        ]
        super().__init__(handlers=handlers, **settings)


if __name__ == '__main__':
    parse_command_line()
    application = Application()
    ioloop = IOLoop.instance()

    application.db = momoko.Pool(
        dsn='dbname=archilance user=postgres password=postgres host=localhost',
        size=1,
        ioloop=ioloop,
    )
    future = application.db.connect()
    ioloop.add_future(future, lambda f:  ioloop.stop())
    ioloop.start()
    future.result()

    http_server = HTTPServer(application)
    http_server.listen(8888, 'localhost')
    ioloop.start()