import win32gui, cgi, time, ftplib, sys

# Simple Python script to generate a "track currently playing" file for
# my weblog http://www.cix.co.uk/~jimh/weblog/blogger.html
#
# Does this by monitoring the window title (and hence track name & artist) for my MP3 player
# (Zinf - http://www.zinf.org), and if a track has been playing for over 30 seconds (I tend
# to skip some tracks depending on my mood) it squirts the track name into a file and then
# ftps the file (playlist.html) to my web server.
#
# Also does psuedo presence indication with Javascript, based on the premise that if I'm
# active at the computer I'm likely to be listening to music or moving the mouse.
#
# Expected params:
#
# 1 - ftp user
# 2 - ftp password
# 3 - ftp directory
#
# e.g. >ZinfBlog.py jim passwd /blog/files
#
# Nasty bit is that the output file is (trivial) Javascript as I don't want to have to rely
# on SSI, so the main html file needs something like the following to pull the playlist in:
#
# <script language="javascript" type="text/javascript" src="playlist.html"></script>
#
# Jim Hughes - Email: jim@fineway.cx - Jabber: jimh@amessage.de or jimh@jabber.at
#
# 2002-08-30 JMH 0.01 Initial release 
# 2002-09-01 JMH 0.02 Minor typos fixed and constants for use with FreeAmp added
# 2002-09-02 JMH 0.03 Added 30 minute "not listening" output and Javascript presence indication
# 2002-09-03 JMH 0.04 Minor tweaks to presence stuff
# 2002-09-04 JMH 0.05 Removed all <BR>s from output
# 2002-09-05 JMH 0.06 Added clas name for RealPlayer and mouse move detection
#

def GetWindowTitle( classname ):
    """" Returns the title of a Windows app given the class name,
    if more than one instance of an app is running you'll get just
    one title, on error (e.g. app not running) returns None """

    try:
        hWin = win32gui.FindWindow( classname, None )
        return win32gui.GetWindowText( hWin )
    except:
        return None

def FtpPut( site, user, pwd, path, srcfile, destfile ):
    """ Trivial function to put an Ascii file onto an ftp site """

    ftp = ftplib.FTP( site )	# connect to host
#    ftp.set_debuglevel(1)	# comment out this line if you're not testing
    ftp.login( user, pwd )
    ftp.cwd( path )
    if path == ftp.pwd():
        fileA = open( srcfile, "r" )
        ftp.storlines("STOR " + destfile, fileA)
        fileA.close()
    ftp.quit


def CreateOutputFile( fileName, introText, midText, trackInfo, offset ):
    """"Create a file to ftp to the web site, has a load of Javascript
    which compares the current time with the time the script was created
    to roughly work out when I was last doing something at the PC"""

    now = time.gmtime()
    # UTC values for Hr, Min and day of month when this script was created
    presenceIntro = str( "stampDate = %d; stampHr = %d; stampMin = %d; offset = %d;" % (now[2], now[3], now[4], offset) )
    presenceStuff = """
now = new Date();

if ((now.getUTCDate() != stampDate) || (now.getUTCHours() < stampHr))
{
    document.write("yesterday (or even longer ago)");
}
else
{
    stampAbs = stampHr*60 + stampMin;
    nowAbs = now.getUTCHours()*60 + now.getUTCMinutes();

    diffAbs = nowAbs - stampAbs;
    diffAbs = diffAbs + offset

    if (diffAbs > 120)
        document.write("at least a couple of hours ago");
    else
    if (diffAbs > 60)
        document.write("over an hour ago");
    else
    if (diffAbs > 30)
        document.write("in the last hour");
    else
    if (diffAbs > 15)
        document.write("in the last half hour");
    else
    if (diffAbs > 5)
        document.write("in the last fifteen minutes");
    else
        document.write("just now");
}
"""

    opFile = open( fileName, "w" )
    opFile.write( 'document.write("%s");' % introText )
    opFile.write( presenceIntro )
    opFile.write( presenceStuff )
    opFile.write( 'document.write("%s");' % midText )
    opFile.write( trackInfo )
    opFile.write( "\n" )
    opFile.close()

# allow the mouse to move 16 pixels in any direction without it counting
# as being moved
def MouseMoved( prevPos, newPos ):
    diff = prevPos[0] - newPos[0]
    if -16 < diff < 16:
        diff = prevPos[1] - newPos[1]
        if -16 < diff < 16:
            return 0
    return 1


# Dumb dummy init value, to force activity on the first loop
prevTrackName = "BlahBlahBlah"
trackName = prevTrackName
ftpSite = "www.cix.co.uk"
fileName = "playlist.html"
introText = "I saw Jim "
midText = ", he was "

# Values for FreeAmp
# appName = "FreeAmp"
# cutAt = 9
# Values for Zinf
appName = "Zinf"
cutAt = 6
# Values for Real Player (window title is "RealOne Player:Stream name")
# appName = "GeminiWindowClass"
# cutAt = 16

while 1:
    trackName = GetWindowTitle( appName )

    # Look for change
    if trackName != prevTrackName:
        prevTrackName = trackName
        prevMousePos = win32gui.GetCursorPos()
        doneFtp = 0
    else:
        if doneFtp == 0:
            inactiveCount = 0
            playTime = 0
            if trackName != None:
		print( trackName[cutAt:] )
                tempStr = str( 'document.write("listening to: %s");' % cgi.escape( trackName[cutAt:] ) )
            else:
		print( "app not running" )
                tempStr = str( 'document.write("not listening to anything");' )

            CreateOutputFile( fileName, introText, midText, tempStr, 0 )
            try:
                FtpPut( ftpSite, sys.argv[1], sys.argv[2], sys.argv[3], fileName, fileName )
            except:
                print( "FtpPut failed" )

            doneFtp = 1
        else:
            mousePos = win32gui.GetCursorPos()
            if MouseMoved( prevMousePos, mousePos ):
                prevMousePos = mousePos
                inactiveCount = 0

            playTime = playTime + 1
            inactiveCount = inactiveCount + 1
                
            if playTime == 60:

		print( "same track for 30 mins" )
                tempStr = str( 'document.write("not listening to anything");' )

                CreateOutputFile( fileName, introText, midText, tempStr, (inactiveCount / 2) )
                try:
                    FtpPut( ftpSite, sys.argv[1], sys.argv[2], sys.argv[3], fileName, fileName )
                except:
                    print( "FtpPut failed" )

    time.sleep(30)