#!/usr/bin/env python

import os
import sys
import getopt
import subprocess
import signal
import serial
import time

def delta_nrj(delta, myline, min=[0,0,0,0,0], max=[0,0,0,0,0]):
    array  = myline.split(" ")

    time = float(array[0]) - delta[0]
    
    for i in range(1, len(delta)):
        if (float(array[i]) < min[i]):
            min[i] = float(array[i])
        if (float(array[i]) > max[i]):
            max[i] = float(array[i])
        delta[i] += time * float(array[i])

    delta[0] = float(array[0])

 #   print delta
    return delta

def compute_pmu(infile, dry_run=True, verbose=False):
    try:
        fi = open(infile, "r")
    except IOError:
        print "WARN: Unable to open %s" % (infile)
        sys.exit(2)

    lines = fi.readlines()

    offset = [0, 0, 0, 0, 0]
    nrj = [0, -0, -0, -0, -0]
    min = [0, 50000000, 50000000, 50000000, 50000000]
    max = [0, 0, 0, 0, 0]
    label = ["time", "dcdc1", "dcdc2", "dcdc3", "AC"]

    for myline in lines:
        delta_nrj(nrj, myline, min, max)

    for i in range(1, len(nrj)):
        nrj[i] -= offset[i] * nrj[0]
        print "Total nrj: %8.3f Joules for %s -- min %8.3f -- max %8.3f" % (nrj[i]/1000, label[i], min[i], max[i])
        if (min[i] < offset[i]):
            print "!!! Min below offset"

  
if __name__ == '__main__':

    def handleSigTERM(signum, frame):
        record = False

    signal.signal(signal.SIGTERM, handleSigTERM)
    signal.signal(signal.SIGINT, handleSigTERM)

    infile = "EC-pmu.txt"
    verbose = False

    try:
        opts, args = getopt.getopt(sys.argv[1:], "i:avd")
    except getopt.GetoptError as err:
        print str(err) # will print something like "option -a not recognized"
        sys.exit(2)

    for o, a in opts:
        if o == "-i":
            infile = a
        if o == "-v":
            verbose = True

    compute_pmu(infile, False, verbose)