import logging

from systemd.daemon import notify
from 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()