import sys import re from functools import partial CSS hierarchy split

import sys
import re
from functools import partial

# CSS hierarchy
split_css = {}

# Conversion patterns
def append(final_css, item, name):
    final_css[name] = item[1]
    
def merge(final_css, item, name):
    if (name in split_css):
        for j in split_css[name].iteritems():
            if (j[0] not in item[1]):
                item[1][j[0]] = j[1]

def attr(final_css, item, name, value):
    item[1][name] = value

def delattr(final_css, item, name):
    if (name in item[1]):
        del item[1][name]

skin_conversion = {
    # Page
    "#contentcontainer": (
        partial(append, name="#content"),
    ),
    "#contentarea": (
        partial(append, name="#contentarea"),
        partial(delattr, name="float"),
    ),
    # Header
    "#header": (
        partial(append, name="#header"),
    ),
    "#header img": (
        partial(append, name="#header #logo"),
        partial(attr, name="float", value="left"),
    ),
    "#header .logo": (
        partial(append, name="#header #logo"),
        partial(attr, name="float", value="left"),
    ),
    "#header h1": (
        partial(append, name="#header h1"),
    ),
    # Menu
    "#navbar": (
        partial(append, name=".main_dnnmenu_bar"),
        partial(attr, name="display", value="block"),
    ),
    "#navbar a": (
        partial(append, name=".main_dnnmenu_rootitem"),
        partial(append, name=".main_dnnmenu_rootitem_selected"),
    ),
    "#navbar a:hover": (
        partial(merge, name="#navbar a"),
        partial(append, name=".main_dnnmenu_rootitem_hover"),
    ),
    "#navbar div table": (
        partial(append, name=".main_dnnmenu_submenu"),
    ),    
    ".dmenulink": (
        partial(append, name=".main_dnnmenu_submenu td"),
    ),
    ".dmenulinkover": (
        partial(append, name=".main_dnnmenu_itemhover td"),
    ),
    # Footer
    "#footer": (
        partial(append, name="#footer"),
    ),
    "#footer h1": (
        partial(append, name="#footer h1"),
    ),
    # Common stuff
    ".link": (
        partial(append, name="a"),
        partial(append, name="a.CommandButton:link"),
    ),
    ".link:hover": (
        partial(append, name="a:hover"),
        partial(append, name="a.CommandButton:hover"),
    ),
    ".hr": (
        partial(append, name="hr"),
    ),
    ".largefont": (
        partial(append, name=".Head"),
    ),    
    ".highlightedfont": (
        partial(append, name=".SubHead"),
    ),    
}

container_conversion = {
    "BODY.popup": (
        partial(append, name=".eipbackimg"),
    ),
}

# Initialize regexp patterns
re_css_comments = re.compile(r"\/\*.*?\*\/", re.DOTALL)
re_css_pattern = re.compile(r"(.*?)\s*\{(.*?)\}", re.DOTALL)

# Various logic
def compare_styles(s1, s2):
    e1 = [j.strip() for j in s1.split(' ')]
    e2 = [j.strip() for j in s2.split(' ')]
    
    return e1 == e2
        
def is_tag(s):    
    items = s.split(' ')        
    
    for i in items:
        if (i[0] == '#' or i[0] == '.'):
            return False
            
        if ("." in i):
            return False
    
    return True
    
def process_items(conversion, ignoreTags):
    final_css = {}
    skipped_css = {}

    for (k, v) in split_css.iteritems():
        if (not ignoreTags and is_tag(k)):
            final_css[k] = v
        else:
            if (k in conversion):                        
                # Inner loop of conversion
                for h in conversion[k]:
                    h(final_css, (k, v))
            else:
                skipped_css[k] = v 

    return (final_css, skipped_css)

def flatten_tree(source):
    values = {}
    for (k, v) in source.iteritems():
        value = "\n".join(("\t%s: %s;" % (j[0], j[1]) for j in v.iteritems()))
    
        if (value in values):
            values[value].append(k)
        else:
            values[value] = [k]

    final = []
    for (k, v) in values.iteritems():
        n = ", ".join((j for j in v))
        final.append((n, k))

    return final

# Entry point
if (len(sys.argv) < 2):
    print "Usage: scripy.py <file>"
    sys.exit(-1)

f = file(sys.argv[1], "r")
css = f.read()
f.close()

css = re_css_comments.sub('', css)
elements = re_css_pattern.findall(css)

# Split CSS
for e in elements:
    names = e[0].split(',')
        
    for i in names:
        n = i.strip()
                    
        if (n in split_css):
            storage = split_css[n]
        else:
            storage = {}
            
        for j in e[1].split(';'):
            v = j.strip()

            if (len(v) == 0):
                continue

            pair = v.split(':')
            
            storage[pair[0].strip()] = pair[1].strip()

        split_css[n] = storage

# Process tree
# Skin
final_css, skipped_css = process_items(skin_conversion, False)
final_css[".clear_float"] = { "clear": "both" }

# Container
container_css, skipped_container_css = process_items(container_conversion, True)
container_css[".c_head"] = { "padding": "0", "margin-top": "8px", "text-align": "left" }
container_css[".c_head h1"] = { "margin": "0", "padding": "0", "float": "left" }
container_css[".c_icon"] = { "float": "left" }
container_css[".c_actions"] = { "float": "left" }
container_css[".c_head_title"] = { "margin": "0", "float": "left" }
container_css[".c_title_vis"] = { "margin": "0", "float": "right" }
container_css[".c_content"] = { "clear": "both" }
container_css[".c_content_pane"] = { "padding": "8px 0 0 0", "text-align": "left" }
container_css[".c_footer"] = { "margin-bottom": "20px", "padding": "0", "text-align": "right" }

# Save skin
final = flatten_tree(final_css)
f = file("skin.css", "w")
for j in final:
    f.write("%s {\n%s\n}\n\n" % (j[0], j[1]))
f.close()

# Save container
final = flatten_tree(container_css)
f = file("container.css", "w")
for j in final:
    f.write("%s {\n%s\n}\n\n" % (j[0], j[1]))
f.close()

# Save skipped classes
final = flatten_tree(skipped_css)
f = file("skipped.css", "w")
for j in final:
    f.write("%s {\n%s\n}\n\n" % (j[0], j[1]))
f.close()

print "Done."