#!/usr/bin/env python

import pygtk
pygtk.require('2.0')
import gtk, gnome.applet
import time
import os
import string

last=-1

# Conversion done with rgb.txt and bc

gtk.rc_parse_string('''
        style "red" {
                bg[NORMAL] = "#ee0000"
		fg[NORMAL] = "#eedd82"
        }
        widget "*.red" style "red"
        style "green" {
                bg[NORMAL] = "#00cd66"
		fg[NORMAL] = "#000000"
        }
        widget "*.green" style "green"
        style "blue" {
                bg[NORMAL] = "#36648b"
		fg[NORMAL] = "#eedd82"
        }
        widget "*.blue" style "blue"
''')

# alternative is to put this into file and use gtk.rc_parse("filename")

style=("red","green","blue")

def generate_label():
	fin=os.popen("cat /proc/acpi/battery/BAT1/[si]*",'r')
        
        rate='4000'
        chargedir = '?'
        current='0'
        maxbat='4000'

	while 1:
		line = fin.readline()
		if line == '':
			break
                words=string.split(line)

                if words[0] == 'charging' and words[1] == 'state:':
                    if words[2] ==  'discharging':
                        chargedir = '-'
                    elif words[2] == 'charging':
                        chargedir = '+'
                    else:
                        chargedir = '='

                if words[0] == 'present' and words[1] == 'rate:':
                    if words[3] == 'mA':
                        rate=words[2]
                    else:
                        print 'unknown units in rpesent rate=',words
                        #sys.exit(1)

                if words[0] == 'remaining' and words[1] == 'capacity:' :
                    if words[3] == 'mAh':
                        current=words[2]
                    else:
                        print 'unknown units in remaining',words
                        #sys.exit(1)

                if words[0] == 'last' and words[1] == 'full':
                    if words[2] == 'capacity:':
                        if words[4] == 'mAh':
                            maxbat = words[3]
                        else:
                            print 'unknown units in maxbat',words
                            #sys.exit(1)
 

	fin.close()

        frate=float(rate)
        fcurrent=float(current)
        fmaxbat=float(maxbat)
	ipercent=int( 100*float(current)/float(maxbat)+0.5 )

        if chargedir == '-':
            timeleft=str(int(60*fcurrent/frate))
        elif chargedir == '+':
            timeleft=str(int(60*(fmaxbat-fcurrent)/frate))
        else:
            timeleft=''

        return ipercent,chargedir,chargedir+str(ipercent)+'% '+timeleft


def update_label():
	global last
	global style

	curr,dir,labstr = generate_label()

	label.set_text(labstr)
	
	if curr>35:
		curr=2
	elif curr>8:
		curr=1
	else:
		curr=0
		# Now beep if going down
		if last != curr and dir=='-':
			os.system("/bin/echo -e \a")


	if  last != curr:
		last=curr
		for w in [label,event_box,frame]:
			w.set_name(style[curr])
		frame.show_all()
		
	return gtk.TRUE

app = gnome.applet.Applet("python-battery")

frame = gtk.GtkFrame()
label = gtk.GtkLabel()
label.set_padding(1,1)

# Create an EventBox and add it to our toplevel window
event_box = gtk.GtkEventBox()
frame.add(event_box)
event_box.show()

event_box.add(label)

update_label()

app.add(frame)
app.set_tooltip("Python battery")


app.show()

gtk.timeout_add(2000, update_label)

gtk.mainloop()