import functools
import asyncio
from concurrent.futures import ThreadPoolExecutor


def to_async(func):
    """Turns a sync function to async function using event loop"""
    @functools.wraps(func)
    async def run(*args, loop=None, executor=None, **kwargs):
        if loop is None:
            loop = asyncio.get_event_loop()
        pfunc = functools.partial(func, *args, **kwargs)
        return await loop.run_in_executor(executor, pfunc)
    return run


def to_async_thread(fn):
    """Turns a sync function to async function using threads"""
    pool = ThreadPoolExecutor()

    @functools.wraps(fn)
    def wrapper(*args, **kwargs):
        future = pool.submit(fn, *args, **kwargs)
        return asyncio.wrap_future(future)  # make it awaitable

    return wrapper


def to_sync(fn):
    """Turns an async function to sync function"""
    @functools.wraps(fn)
    def wrapper(*args, **kwargs):
        res = fn(*args, **kwargs)
        if asyncio.iscoroutine(res):
            return asyncio.get_event_loop().run_until_complete(res)
        return res

    return wrapper