#! /usr/bin/python2
#Helper program that generates gen_is.xml thats custom to linhes.
#Contents of gen_is.xml are read from /etc/gen_is_xml.d
#This script should be run everytime a is.xml entry is added or removed


import os, sys
import glob

def read_snippets(dir_name):
    xml_snippets=""
    try:
        os.chdir(dir_name)
    except:
        print "    gen_is_xml: Couldn't change dir to %s" %dir_name
        print "    Exiting"
        sys.exit(0)
    file_list=glob.glob("*.conf")
    for conf_file in file_list:
        try:
            print "    gen_is_xml: reading in %s" %conf_file
            f=open(conf_file,'r')
            lines=f.readlines()
            f.close()
        except:
            print "    gen_is_xml: Couldn't open %s for reading" %conf_file
            print "    Exiting"
            sys.exit(1)
        for line in lines:
            xml_snippets+=line
    if len(file_list) == 0:
        print "    gen_is_xml:  no conf files found"
        xml_snippets=""

    return xml_snippets


def write_xml(xml,filename):
    try:
        f=open(filename, 'w')
    except:
        print "    gen_is_xml: Couldn't open %s" %(filename)
        print "    Exiting"
        sys.exit(2)
    f.write(xml)
    f.close()

def main():
    filename="/usr/share/mythtv/gen_is.xml"
    is_xml_dir="/etc/gen_is_xml.d/"
    xml_snippets=read_snippets(is_xml_dir)
    xml='''<mythmenu name="INTERNET_STREAMS">\n\n%s\n</mythmenu>\n''' %xml_snippets
    write_xml(xml,filename)

if __name__ == "__main__":
    main()