#!/usr/bin/env python
# $Id: show_log.py,v 1.3 2006/05/08 15:45:27 rbentson Exp rbentson $

import Gnuplot, Gnuplot.funcutils
import time
import sys
'''
87000000037B1422
D000000003812C22
F5000000037F8022
'''

args = { "a": "87000000037B1422", "na":"NW temp",
         "b": "AB000000037F3322", "nb":"NE temp",
         "c": "B3000000317F3728", "nc":"ambient",
         "d": "D000000003812C22", "nd":"SE temp",
         "e": "D300000003756622", "ne":"insolation",
         "f": "F5000000037F8022", "nf":"SW temp",
         }

def demo(filename, delay=60):
    fahrenheit = filename > "20070000"
    missing = filename > "20060823"

    g = Gnuplot.Gnuplot(debug=1)
    g.title( filename )
    g.ylabel('Degrees Celsius')
    g('set xlabel "Time in GMT" 0,-4')
    g('set timestamp "Generated %Y/%m/%d %H:%M:%S local time" 10,0')
    g('set format x "%Y/%m/%d\\n%H:%M:%S"')
    g('set xtics rotate')
    g('set bmargin 10')
    g('set xdata time')
    g('set timefmt "%s"')
    g('set datafile missing "?"')
    g('set yrange [5:42]')
    args['fn'] = filename
    if sys.argv[0] == "./print_log.py":
        g('set terminal png small picsize 1280 1024')
        g('set output "%(fn)s.png"' % args)
        if fahrenheit:
            g("plot"
              " '<grep %(a)s %(fn)s' using 1:(5*($3-32)/9) title '%(na)s' with lines"
              ", '<grep %(d)s %(fn)s' using 1:(5*($3-32)/9) title '%(nd)s' with lines"
              ", '<grep %(f)s %(fn)s' using 1:(5*($3-32)/9) title '%(nf)s' with lines"
             % args)
        else:
            if missing:
                g("plot"
                  " '<grep %(a)s %(fn)s' using 1:3 title '%(na)s' with lines"
                  ", '<grep %(d)s %(fn)s' using 1:3 title '%(nd)s' with lines"
                  ", '<grep %(f)s %(fn)s' using 1:3 title '%(nf)s' with lines"
                 % args)
            else:
                g("plot"
                  " '<grep %(a)s %(fn)s' using 1:3 title '%(na)s' with lines"
                  ", '<grep %(b)s %(fn)s' using 1:3 title '%(nb)s' with lines"
                  ", '<grep %(c)s %(fn)s' using 1:3 title '%(nc)s' with lines"
                  ", '<grep %(d)s %(fn)s' using 1:3 title '%(nd)s' with lines"
                  ", '<grep %(e)s %(fn)s' using 1:3 title '%(ne)s' with lines"
                  ", '<grep %(f)s %(fn)s' using 1:3 title '%(nf)s' with lines"
                 % args)
    else:
        try:
          while True:
            g('set grid' )
            if fahrenheit:
                g("plot"
                  " '<grep %(a)s %(fn)s' using 1:(5*($3-32)/9) title '%(na)s' with lines"
                  ", '<grep %(d)s %(fn)s' using 1:(5*($3-32)/9) title '%(nd)s' with lines"
                  ", '<grep %(f)s %(fn)s' using 1:(5*($3-32)/9) title '%(nf)s' with lines"
                 % args)
            else:
                if missing:
                    g("plot"
                      " '<grep %(a)s %(fn)s' using 1:3 title '%(na)s' with lines"
                      ", '<grep %(d)s %(fn)s' using 1:3 title '%(nd)s' with lines"
                      ", '<grep %(f)s %(fn)s' using 1:3 title '%(nf)s' with lines"
                     % args)
                else:
                    g("plot"
                      " '<grep %(a)s %(fn)s' using 1:3 title '%(na)s' with lines"
                      ", '<grep %(b)s %(fn)s' using 1:3 title '%(nb)s' with lines"
                      ", '<grep %(c)s %(fn)s' using 1:3 title '%(nc)s' with lines"
                      ", '<grep %(d)s %(fn)s' using 1:3 title '%(nd)s' with lines"
                      ", '<grep %(e)s %(fn)s' using 1:3 title '%(ne)s' with lines"
                      ", '<grep %(f)s %(fn)s' using 1:3 title '%(nf)s' with lines"
                     % args)
            time.sleep(delay)
        except KeyboardInterrupt:
          pass

# when executed, just run demo():
if __name__ == '__main__':
    if len(sys.argv) > 1:
        for fn in sys.argv[1:]:
            demo( fn , 10)
    else:
        import os
        import re
        ptn = re.compile(r"200.....$")
        fns = os.listdir(".")
        fns.sort()
        lastname = None
        for name in fns:
            if ptn.match(name):
                lastname = name
        if lastname:
            demo( lastname , 10)
        else:
            print "No filename given and no suitable name found"

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