# -*- coding: iso-8859-1 -*-
u"""
    MoinMoin - CategoryCloud macro Version 0.2 ALPHA
               Output a tag cloud of categry pages

    
    @copyright: 2009 by MarcelHäfner (http://moinmo.in/MarcelHäfner)
                (this code is a bigger rewrite of the macro TagCloud by Christian Groh 
    @license: GNU GPL, see COPYING for details.
    
    @TODO:
     * The final output should be optimized and not using that much code
     * Use some better caching like the origin macro did
     * The regex for finding the "Category" should avoid FooCategory for counting

"""

from MoinMoin.Page import Page
import re

Dependencies = [] #TODO: optimizing caching

def macro_CategoryCloud(macro,maxTags=30,fontSize=0.65):

    #inital stuff
    request = macro.request
    fmt = macro.formatter
    _ = request.getText
    errorMsg = []
    html = []
    tags = []
    taglist = []
    show = []
    level = { 0 : 4 , 1 : 7 , 2 : 12 , 3 : 18 , 4 : 25 , 5 : 35 , 6 : 50 , 7 : 60 , 8 : 90 }     #{level:hits , level:hits , ...}

    #fetch all pages, except underlays
    pages = request.rootpage.getPageList(exists=1,include_underlay=False,)
    if not pages:
        errorMsg.append(fmt.div(True,css_class="error"))
        errorMsg.append(_("No pages exist or you have not enough rights to view them"))
        errorMsg.append(fmt.div(False))
        return ''.join(errorMsg)

    #find CategoryFoo tags and count them
    for page in pages:
        page = Page(request, page)
        if page.isStandardPage() and not page.isUnderlayPage():
            body = page.get_raw_body()
            #match = re.search(ur'(?P<all>Category(?P<category>\S+))', body)
            match = re.search(ur'----(\r)?\n(.*)(?P<all>Category(?P<category>\S+))', body) #TODO
            if match == None: 
                continue
            match = match.group('category')
            match = match.split(',')
            for tag in match:
                tags.insert(0, (str(tag.encode('utf8'))).strip())
    taglist = list(frozenset(tags))

    #sorting the taglist and output as show
    def sort(t):
        return t[1]

    for tag in taglist:
        show.append( (tag, tags.count(tag)) )
    show.sort(key=sort, reverse=True)
    show = show[0:maxTags]
    show.sort()
    
    #generate the cloud. TODO: code should be optimized
    html.append(fmt.div(True,css_class="PageCloud",style="display:inline;"))       
    for tag in show:
        pagename = "Category" + tag[0].decode('utf8')
        hits = tag[1]       
         #level0
        if hits < level[0]:
            html.append(fmt.span(True,style="font-size:%sem;") % str(fontSize+0.0))
            html.append(fmt.pagelink(True,pagename))
            html.append(fmt.text(tag[0].decode('utf8')))
            html.append(fmt.pagelink(False))
            html.append(fmt.span(False))
            html.append(fmt.text(" "))
        #level1
        elif hits < level[1]:
            html.append(fmt.span(True,style="font-size:%sem;") % str(fontSize+0.15))
            html.append(fmt.pagelink(True,pagename))
            html.append(fmt.text(tag[0].decode('utf8')))
            html.append(fmt.pagelink(False))
            html.append(fmt.span(False))
            html.append(fmt.text(" "))
        #level2
        elif hits < level[2]:
            html.append(fmt.span(True,style="font-size:%sem;") % str(fontSize+0.25))
            html.append(fmt.pagelink(True,pagename))
            html.append(fmt.text(tag[0].decode('utf8')))
            html.append(fmt.pagelink(False))
            html.append(fmt.span(False))
            html.append(fmt.text(" "))
        #level3
        elif hits < level[3]:
            html.append(fmt.span(True,style="font-size:%sem;") % str(fontSize+0.35))
            html.append(fmt.pagelink(True,pagename))
            html.append(fmt.text(tag[0].decode('utf8')))
            html.append(fmt.pagelink(False))
            html.append(fmt.span(False))
            html.append(fmt.text(" "))
        #level4
        elif hits < level[4]:
            html.append(fmt.span(True,style="font-size:%sem;") % str(fontSize+0.45))
            html.append(fmt.pagelink(True,pagename))
            html.append(fmt.text(tag[0].decode('utf8')))
            html.append(fmt.pagelink(False))
            html.append(fmt.span(False))
            html.append(fmt.text(" "))
        #level5
        elif hits < level[5]:
            html.append(fmt.span(True,style="font-size:%sem;") % str(fontSize+0.55))
            html.append(fmt.pagelink(True,pagename))
            html.append(fmt.text(tag[0].decode('utf8')))
            html.append(fmt.pagelink(False))
            html.append(fmt.span(False))
            html.append(fmt.text(" "))
        #level6
        elif hits < level[6]:
            html.append(fmt.span(True,style="font-size:%sem;") % str(fontSize+0.65))
            html.append(fmt.pagelink(True,pagename))
            html.append(fmt.text(tag[0].decode('utf8')))
            html.append(fmt.pagelink(False))
            html.append(fmt.span(False))
            html.append(fmt.text(" "))
        #level7
        elif hits < level[7]:
            html.append(fmt.span(True,style="font-size:%sem;") % str(fontSize+0.75))
            html.append(fmt.pagelink(True,pagename))
            html.append(fmt.text(tag[0].decode('utf8')))
            html.append(fmt.pagelink(False))
            html.append(fmt.span(False))
            html.append(fmt.text(" "))
        #level8
        elif hits < level[8]:
            html.append(fmt.span(True,style="font-size:%sem;") % str(fontSize+0.85))
            html.append(fmt.pagelink(True,pagename))
            html.append(fmt.text(tag[0].decode('utf8')))
            html.append(fmt.pagelink(False))
            html.append(fmt.span(False))
            html.append(fmt.text(" "))
        #level9
        else:
            html.append(fmt.span(True,style="font-size:%sem;") % str(fontSize+1.05))
            html.append(fmt.pagelink(True,pagename))
            html.append(fmt.text(tag[0].decode('utf8')))
            html.append(fmt.pagelink(False))
            html.append(fmt.span(False))
            html.append(fmt.text(" "))

    #output    
    html.append(fmt.div(False))
    return ''.join(html)