import gi
import os
import sys
from gi.repository import Gio


if len(sys.argv) != 2:
    print('Usage: %s <theme file>' % sys.argv[0])
    sys.exit(1)

res = Gio.Resource.load(sys.argv[1])


# Get the name of the theme

children = res.enumerate_children('/org/chrysalide/gui/themes', Gio.ResourceLookupFlags.NONE)

name = children[0][:-1]


# Prepare the output directory

if not(os.path.isdir(name)):
    os.mkdir(name)


# Dump resource files

files = ''

children = res.enumerate_children('/org/chrysalide/gui/themes/' + name, Gio.ResourceLookupFlags.NONE)

for child in children:

    raw = res.lookup_data('/org/chrysalide/gui/themes/' + name + '/' + child, Gio.ResourceLookupFlags.NONE)

    with open(name + os.sep + child, 'wb') as out:
        out.write(raw.get_data())

    files += '\n        <file compressed="true">%s</file>' % child


# Create the gresource.xml file

xml = '''<?xml version="1.0" encoding="UTF-8"?>
<gresources>
    <gresource prefix="/org/chrysalide/gui/themes/%s">%s
    </gresource>
</gresources>
''' % (name, files)

with open(name + os.sep + 'gresource.xml', 'w') as out:
    out.write(xml)


# Create a Makefile

rules = '''
GTK3_CSS = %s

%s.ctm: gresource.xml $(GTK3_CSS)
	glib-compile-resources --target=$@ --sourcedir=. gresource.xml

clean:
	rm -f %s

''' % (' '.join(children), name.lower(), name.lower())

with open(name + os.sep + 'Makefile', 'w') as out:
    out.write(rules)