#!/usr/local/bin/python2.7
"""
    A simple script to generate guuplot data from meter history
"""
	 
__author__ = "Peter Shipley"


import sys
sys.path.append('/usr/home/shipley/Projects/Eagle') # temp

import RainEagle
import time
from pprint import pprint
from RainEagle import Eagle, to_epoch_1970

import json

last_delivered = 0
last_received = 0
max_delta_received = 0
max_delta_delivered = 0
day_delta_received = 0
day_delta_delivered = 0
curr_day=-1

def main(eg) :
    # print_header()
    print_data(eg)
    # print_footer()
    exit(0)

def print_header() :
    print """
set terminal png size 2600,500
set datafile separator "\t"
set xlabel "time"
set ylabel "power"
set grid
set key off
set pointsize 0.5 
set xtics 3600 
set xdata  time      
set timefmt "%Y-%m-%d %H:%M:%S"
set format x "%a %b %d %H:%M"
#set xrange [ "2014-03-04 00:00:00" :  ]
# set xrange [ "2014-03-04 00:00:00" : "2014-03-09 17:20:00" ] 
set style data lines 
set autoscale y
set title "Power Use"
set output "poweruse.png"
plot "-" using 1:3 t "inbound" w lines, "-" using 1:5 t "outbound"
"""

def print_footer() :
    pass

def print_data(eg) :
    rh = eg.get_history_data()
    #+ # endtime=None, frequency=None ) :

    for dat in rh['HistoryData']['CurrentSummation'] :
	print_currentsummation(dat)

    print "# day_delta_received={0:0.4f}\tday_delta_delivered={1:0.4f} : {2:0.4f}".format(day_delta_received, day_delta_delivered, ( day_delta_delivered - day_delta_received ) )
    print "# max_delta_received={0:0.4f}\tmax_delta_delivered={1:0.4f}".format(max_delta_received, max_delta_delivered)

def print_currentsummation(cs) :
    global last_delivered
    global last_received

    global max_delta_received 
    global max_delta_delivered
    global day_delta_received 
    global day_delta_delivered
    global curr_day

    time_stamp = to_epoch_1970(cs['TimeStamp'])

    multiplier=int(cs['Multiplier'], 16)
    divisor=int(cs['Divisor'], 16)
    delivered=int(cs['SummationDelivered'], 16)
    received=int(cs['SummationReceived'], 16)

    # print "Multiplier=", multiplier, "Divisor=", divisor, "Demand=", demand
 
    if multiplier == 0 :
	multiplier=1

    if divisor == 0 :
	divisor=1

    reading_received =  received * multiplier /  float (divisor )
    delta_received = (reading_received - last_received)
    last_received = reading_received
    if ( delta_received > max_delta_received and delta_received < 1000) :
	max_delta_received =  delta_received
	#print "new max_delta_received :", max_delta_received 


    reading_delivered = delivered * multiplier /  float (divisor )
    delta_delivered = (reading_delivered - last_delivered)
    last_delivered = reading_delivered
    if ( delta_delivered > max_delta_delivered and delta_delivered < 1000) :
	max_delta_delivered =  delta_delivered
	#print "\t\tnew max_delta_delivered :", max_delta_delivered 




    time_struct = time.localtime(time_stamp)
    if  curr_day != time_struct.tm_mday :
	curr_day = time_struct.tm_mday
	print "# day_delta_received={0:0.4f}\tday_delta_delivered={1:0.4f} : {2:0.4f}".format(day_delta_received, day_delta_delivered, ( day_delta_delivered - day_delta_received ) )
	day_delta_received = 0 
	day_delta_delivered = 0 

    day_delta_received += delta_received
    day_delta_delivered += delta_delivered

    print "{0}\t{1:.4f}\t{2:0.4f}\t{3:.4f}\t{4:0.4f}".format(
	time.strftime("%Y-%m-%d %H:%M:%S", time_struct), 
	reading_received, 
	delta_received,
	reading_delivered, 
	delta_delivered)



if __name__ == "__main__":
    # import __main__
    # print(__main__.__file__) 
    # print("syntax ok") 
    reagle = RainEagle.Eagle( debug=0 , addr="10.1.1.39")
    main(reagle)
    exit(0)