'''
Created on Dec 23, 2016

@author: klaehn
'''
import sys
import time

import data_buffer
import engine
import power_sensor

POWER_SENSOR_I2C_BUS = 1
POWER_SENSOR_I2C_ADDRESS = 0x40

CONSECUTIVE_POWER_READS = 1000

MAX_ENGINE_POWER = {"up":330, "down":280}

def main(argv):
    __engine = engine.Engine(gpio_1=13, gpio_2=19)
    __power_sensor = power_sensor.PowerSensor(POWER_SENSOR_I2C_BUS, POWER_SENSOR_I2C_ADDRESS)
    __power_data = data_buffer.DataBuffer(CONSECUTIVE_POWER_READS)
    __engine.down()
    try:
        while True:
            rd = __power_sensor.power_mw()
            __power_data.push(rd)
            average = __power_data.average()
            print str(time.time()) + " " + str(rd)
            if average != None:
                if average > MAX_ENGINE_POWER["down"]:
                    __engine.stop()
#                    print "Gate successfully closed"
                    return 0

    except KeyboardInterrupt:
        __engine.stop()
#        print "Closing procedure interrupted."
        return 1


if __name__ == "__main__":
    sys.exit(main(sys.argv[1:]))