#!/usr/bin/python

# Shamelessly stolen from the GTK+ source.
# Modified for The GIMP.


import xmllib;
import sys;
import string
import re

def html_subst(s):
    if s.group(1) != None:
        return s.group(0)
    elif s.group(2) != None:
        return '<a href="' + s.group(0) + '">' + s.group(0) + '</a>'
    elif s.group(3) != None:
        return '<a href="mailto:' + s.group(0) + '">' + s.group(0) + '</a>'
        
def htmlify(str): 
    return re.sub ("(<[^>]*>)|([ht|f]tp://[~.:/\w-]+)|([\w._!-]+@[\w_-]+).[\w._-]+", html_subst, str)

def bug_subst(s):
    if s.group(1) != None:
        return s.group(0)
    else:
        n = s.group(2)
        return '<a href="http://bugzilla.gnome.org/show_bug.cgi?id=%s">#%s</a>' % (n, n)

def bugify(str):
    str =  re.sub ("(<[^>]*>)|#(\d+)", bug_subst, str)
    return htmlify(str)

def make_id(str):
    return re.sub ("[^a-z]","-", string.lower(str))

class ParseError (Exception):
    pass

class Entry:
    def __init__(self):
        self.description = None
        self.title = None
        self.url = None
        self.contact = None
        self.bugs = None

    def set_size(self, size):
        size = string.lower(size)
        if size == "small":
            self.size = "Small"
        elif size == "medium":
            self.size = "Medium"
        elif size == "big":
            self.size = "Big"
        else:
            raise ParseError, 'size must be "small", "medium", or "big"'

    def set_difficulty(self, difficulty):
        difficulty = string.lower(difficulty)
        if difficulty == "easy":
            self.difficulty = "Easy"
        elif difficulty == "medium":
            self.difficulty = "Medium"
        elif difficulty == "advanced":
            self.difficulty = "Advanced"
        else:
            raise ParseError, 'difficulty must be "easy", "medium", or "advanced"'

    def output(self):
        if self.size == "Big":
            bgcolor = "#88bb88"
        elif self.size == "Medium":
            bgcolor = "#b4d4b4"
        else:
            bgcolor = "#d0e0d0"
        
        print '''<table cellspacing="0" cellpadding="2" width="97%%" border="0" bgcolor="#000000">
        <tbody><tr><td colspan=2>
        <table cellspacing="0" cellpadding="5" width="100%%" border="0" bgcolor="#ffffff">
        <tbody>
   	  <tr bgcolor="%s">
	     <td align="left" colspan="4"><font size="+1">%s</font></font></td>
	  </tr>
   	  <tr bgcolor="%s">
	     <td align="left" width="20%%"><b>Size</b>: %s</td>
             <td align="left" width="20%%"><b>Difficulty</b>: %s</td>
	     <td align="center" width="20%%"><b>Status</b>: %s</td>
	     <td align="right" width="20%%"><b>Target Version</b>: %s</td>
	  </tr>
	  <tr>
  	     <td colspan=4>
             %s
             <table cellspacing="0" cellpadding="0">
               <tbody>''' % (bgcolor, self.title, bgcolor, self.size, self.difficulty, self.status, self.target, htmlify(self.description))

        if self.url != None:
            print '''<tr><td width="0"><b>More Info</b>:</td>
		     <td>%s</td>
                     </tr>''' % htmlify (self.url)

        if self.bugs != None:
            print '''<tr><td width="0"><b>Bug Reports</b>:</td>
		     <td>%s</td>
                     </tr>''' % bugify (self.bugs)

        if self.contact != None:
            print '''<tr><td width="0"><b>Contact</b>:</td>
		     <td>%s</td>
                     </tr>''' % htmlify (self.contact)

        print '''</tbody>
             </table>
	     </td>
	 </tr>
	</tbody></table>
        </td></tr></tbody></table>
'''

class Section:
    def __init__(self):
        self.title = None
        self.entries = []

    def output(self):

        print '<h2><a name="%s">%s</a></h2>' % (make_id(self.title), self.title)
        
        first = 1
        for entry in self.entries:
            if not first:
                print "<br>"
            first = 0
            entry.output()

class TodoParser (xmllib.XMLParser):
    def __init__(self):
        xmllib.XMLParser.__init__(self)
        
        self.in_todo = 0
        self.in_data = 0
        self.data = ""
        self.section = None
        self.entry = None
        self.logourl = None
        self.title = None
        self.sections = []

        self.entitydefs = {}

    def start_todo(self,attributes):
        if self.in_todo:
            raise ParseError, "<todo> tags may not be nested"
        if attributes.has_key ("logourl"):
            self.logourl = attributes["logourl"]
        self.in_todo = 1

    def end_todo(self):
        self.in_todo = 0

    def start_section(self,attributes):
        if self.section:
            raise ParseError, "<section> tags may not be nested"
        
        self.section = Section()

    def end_section(self):
        if self.section.title == None:
            raise ParseError, "<section> requires <title>"
            
        self.sections.append(self.section)
        self.section = None

    def start_title(self,attributes):
        if not self.in_todo:
            raise ParseError, "<title> tag must be in <todo>, <section> or <entry>"
        if self.in_data:
            raise ParseError, "Unexpected <title> tag in content"
        self.in_data = 1
    
    def end_title(self):
        self.in_data = 0
        if self.entry:
            self.entry.title = self.data
        elif self.section:
            self.section.title = self.data
        else:
            self.title = self.data
        self.data = ""
            
    def start_description(self,attributes):
        if not self.entry:
            raise ParseError, "<description> tag must be in <entry>"
        if self.in_data:
            raise ParseError, "Unexpected <description> tag in content"
        self.in_data = 1
    
    def end_description(self):
        self.in_data = 0
        self.entry.description = self.data
        self.data = ""
            
    def start_url(self,attributes):
        if not self.entry:
            raise ParseError, "<url> tag must be in <entry>"
        if self.in_data:
            raise ParseError, "Unexpected <url> tag in content"
        self.in_data = 1
    
    def end_url(self):
        self.in_data = 0
        self.entry.url = self.data
        self.data = ""
            
    def start_contact(self,attributes):
        if not self.entry:
            raise ParseError, "<contact> tag must be in <entry>"
        if self.in_data:
            raise ParseError, "Unexpected <contact> tag in content"
        self.in_data = 1
    
    def end_contact(self):
        self.in_data = 0
        self.entry.contact = self.data
        self.data = ""
            
    def start_bugs(self,attributes):
        if not self.entry:
            raise ParseError, "<bugs> tag must be in <bugs>"
        if self.in_data:
            raise ParseError, "Unexpected <bugs> tag in content"
        self.in_data = 1
    
    def end_bugs(self):
        self.in_data = 0
        self.entry.bugs = self.data
        self.data = ""
            
    def start_entry(self,attributes):
        if not self.section:
            raise ParseError, "<entry> tag must be in <section>"
        if self.entry:
            raise ParseError, "<entry> tags may not be nested"

        self.entry = Entry()

        if not attributes.has_key("size"):
            raise ParseError, '"size" attribute required for entry'
        self.entry.set_size(attributes["size"])

        if not attributes.has_key("difficulty"):
            raise ParseError, '"difficulty" attribute required for entry'
        self.entry.set_difficulty(attributes["difficulty"])

        if not attributes.has_key("status"):
            raise ParseError, '"status" attribute (completion percentage) required for entry'
        self.entry.status=attributes["status"]

        if not attributes.has_key("target"):
            raise ParseError, '"target" attribute (target version) required for entry'
        self.entry.target=attributes["target"]

    def end_entry(self):
        if self.entry.title == None:
            raise ParseError, "<entry> requires <title>"
            
        if self.entry.description == None:
            raise ParseError, "<entry> requires <description>"
            
        self.section.entries.append(self.entry)
        self.entry = None

    def handle_data(self,data):
        if self.in_data:
            self.data = self.data + data
        
    def unknown_starttag(self,tag,attributes):
        if not self.in_data:
            raise ParseError, "Unexpected start tag: " + tag
        else:
            self.data = self.data + "<" + tag
            for (key,val) in attributes.items():
                self.data = self.data + ' %s="%s"' % (key,val)
            self.data = self.data + ">"

    def unknown_endtag(self,tag):
        if not self.in_data:
            raise ParseError, "Unexpected end tag: " + tag
        else:
            self.data = self.data + "</%s>" % tag

    def syntax_error(self, err):
        if re.match("reference to unknown entity", err):
            pass
        else:
            xmllib.XMLParser.syntax_error (self, err)
            
    def unknown_entityref(self,ref):
        if not self.in_data:
            raise ParseError, "Unknown entity &" + ref + ";"
        else:
            self.data = self.data + "&" + ref + ";"

file = open(sys.argv[1])
parser = TodoParser()

lineno = 1
while 1:
    line = file.readline()
    if line == "":
        break

    try:
        parser.feed(line)
    except ParseError, err:
        sys.stderr.write("Parse error at line " + `lineno` + ": " + err.__str__() + "\n")
        sys.exit(1)
    except RuntimeError, err:
        sys.stderr.write(err.__str__() + "\n")
        sys.exit(1)

    lineno = lineno + 1

parser.close()
if parser.title == None:
    sys.stderr.write ("<todo> Document must have a <title>\n")
    sys.exit (1)

print '''<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN">
<html>
<head>
  <title>%s</title>
  <link rel="icon" href="wilber-icon.png" type="image/png">
</head>
<body bgcolor="#ffffff">
<table width="100%%" cellspacing="0" cellpadding="0" border="0">
  <tbody>
    <tr valign="top">
      <td>
        <h1>%s</h1>''' % (parser.title, parser.title)


for section in parser.sections:
    ntasks = len(section.entries)
    id = make_id (section.title)
    if ntasks == 1:
        print '<a href="#%s">%s</a> (1 item)<br>' % (id,section.title)
    else:
        print '<a href="#%s">%s</a> (%d items)<br>' % (id,section.title,ntasks)

print '''
      </td>'''
if parser.logourl != None:
    print '''      <td align="right">
       <img src="%s" alt="Logo"></img>
      </td>''' % parser.logourl
print '''
    </tr>
  </tbody>
</table>
''' 

first = 1
for section in parser.sections:
    if not first:
        print "<br><br>"
    first = 0
    section.output()

print '''</body>
</html>'''
    

