#!/usr/bin/env python3
#
# Copyright 2024, The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from argparse import ArgumentParser as AP
from zipfile import ZipFile, ZIP_DEFLATED
import xml.etree.ElementTree as ET
import re

# Finds the <overlayable> element in the xml file and removes it
# Returns the pruned XML tree as a String
def remove_overlayables(file):
    values = ET.parse(file)
    resources = values.getroot()
    overlayable = resources.find('overlayable')
    if overlayable is not None:
        resources.remove(overlayable)
    return ET.tostring(resources, encoding='unicode', xml_declaration=True)

def main():
    parser = AP(description='This tool takes an AAR and removes the <overlayable> resources')
    parser.add_argument('output')
    parser.add_argument('soong_aar')
    args = parser.parse_args()
    values_path = 'res/values/values.xml'
    overlayables_path = 'res\/values\/overlayable[0-9].xml'
    print("input aar: " + args.soong_aar)

    with ZipFile(args.output, mode='w', compression=ZIP_DEFLATED) as outaar, ZipFile(args.soong_aar) as soongaar:
        for f in soongaar.namelist():
            if f == values_path or re.search(overlayables_path, f):
                print("Found resource file " + f)
                try:
                    file = soongaar.open(f)
                    xml = remove_overlayables(file)
                    outaar.writestr(f, xml)
                except KeyError:
                    print("Could not find overlayables in " + f)
            else:
                outaar.writestr(f, soongaar.read(f))

if __name__ == "__main__":
    main()