"""
 gensitemap.py - generate a site map based on googles SiteMap specification
 Protocol:  https://www.google.com/webmasters/sitemaps/docs/en/protocol.html


 variations of note:  metadata (such as how often to index the file) will be in
  filename.metadata.  If you want to override the default frequency and priority,
  create a file called "whatever-the-filename-was".metadata with the xml lines:
  
<changefreq>whatever</changefreq>
<priority>whatever</priority>

 Output is to stdout.  Redirect to a file if you want to save the output.  Pipe
 through gzip if you want it gzipped.

"""

import os
import string
import time

import xml.sax.saxutils

#
# Document extentions we are interested in generating data for.
#
EXTENSIONS = (".php", ".html")

DOMAIN = "http://www.elifulkerson.com"

# The default default is "Never"
DEFAULT_FREQ = "never"
DEFAULT_PRIORITY = "0.5"



def recurse_directories ( rootdir="" ):
    for file in os.listdir( os.getcwd() + os.sep + rootdir):
        if os.path.isdir(os.getcwd() + os.sep + rootdir + os.sep + file):
            recurse_directories(rootdir + os.sep + file)
        else:
            found = False
            for each in EXTENSIONS:
                if string.find(file, each) > -1 and string.find(file, ".metadata") == -1 and string.find(file, "~") == -1 and string.find(file, ".bak") == -1:
                    found = True
                    break
               
            if found == True:

                modtime = os.path.getmtime(os.getcwd() + os.sep + rootdir + os.sep + file)

#                iso_time = time.strftime( "%Y-%m-%dT%H:%M:%S", time.localtime(modtime) )
                iso_time = time.strftime( "%Y-%m-%d", time.localtime(modtime) )                
                url = xml.sax.saxutils.escape( DOMAIN + string.replace(rootdir, os.sep, "/") + "/" + file)


                print "<url>"
                print "  <loc>" + url +"</loc>"
                print "  <lastmod>" + str(iso_time) + "</lastmod>"

                # if there is a filename.metadata file, include that now
                try:
                    f = open(os.getcwd() + os.sep + rootdir + os.sep + file + ".metadata")
                    lines = f.readlines()

                    for line in lines:
                        print "  " + line

                except:
                    print "  <changefreq>" + DEFAULT_FREQ + "</changefreq>"
                    print "  <priority>" + DEFAULT_PRIORITY + "</priority>"
                
                print "</url>";


print "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
print "<?xml-stylesheet type=\"text/xsl\" href=\"sitemap.xsl\"?>"
print "<urlset xmlns=\"http://www.google.com/schemas/sitemap/0.84\">"


recurse_directories()

print "</urlset>"