import logging

from systemd.daemon import notify
from utils.db import dbconn
from common import get_redis_queue
from subprocess import CalledProcessError
from tasks import Rpc


def run():
    ET = dbconn("etdb")
    q = get_redis_queue()
    notify("READY=1")
    while True:
        rpc = Rpc.from_json(q.blpop("tasks")[1].decode("utf-8"))

        print("Running '{}' with {}".format(rpc.fun, rpc.args))
        if rpc.fun == "generate_scenarios":
            rpc.args += [ET]
        try:
            rpc()
        except CalledProcessError:
            print("'{}' did not complete".format(rpc.fun))
        else:
            print("'{}' completed".format(rpc.fun))
        if rpc.fun == "build_portfolios":
            q.rpush("tasks", str(Rpc("build_scenarios", rpc.args)))
        if rpc.fun == "build_scenarios":
            q.rpush("tasks", str(Rpc("generate_scenarios", rpc.args[:-1])))
    ET.close()


if __name__ == "__main__":
    logger = logging.getLogger("intex")
    logger.setLevel(logging.INFO)
    logger.addHandler(logging.StreamHandler())
    run()