#!/usr/bin/env python3

import asyncio

from artiq.management.pc_rpc import Server
from artiq.management.scheduler import Scheduler


class Master:
    def __init__(self, scheduler):
        self.scheduler = scheduler
        self.terminate_notify = asyncio.Semaphore(0)

    @asyncio.coroutine
    def wait_quit(self):
        yield from self.terminate_notify.acquire()

    def quit(self):
        self.terminate_notify.release()

    def run_once(self, run_params, timeout):
        self.scheduler.run_once(run_params, timeout)


def main():
    loop = asyncio.get_event_loop()
    try:
        scheduler = Scheduler()
        loop.run_until_complete(scheduler.start())
        try:
            master = Master(scheduler)
            server = Server(master)
            loop.run_until_complete(server.start("::1", 8888))
            try:
                loop.run_until_complete(master.wait_quit())
            finally:
                loop.run_until_complete(server.stop())
        finally:
            loop.run_until_complete(scheduler.stop())
    finally:
        loop.close()

if __name__ == "__main__":
    main()