#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (c) 2023 Huawei Device Co., Ltd.
# 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.

import tarfile
import argparse
import os
import subprocess
import sys
import shutil


def untar_file(tar_file_path, extract_path):
    try:
        tar_cmd = ['tar', '-xvf', tar_file_path, '-C', extract_path, '--strip-components=1']
        subprocess.run(tar_cmd, check=True)
    except Exception as e:
        print("tar error!")
        return


def move_file(src_path, dst_path):
    files = [
        "backport-CVE-2023-2004.patch",
        "backport-freetype-2.2.1-enable-valid.patch",
        "backport-freetype-2.3.0-enable-spr.patch",
        "backport-freetype-2.6.5-libtool.patch",
        "backport-freetype-2.8-multilib.patch",
        "backport-freetype-2.10.0-internal-outline.patch",
        "backport-freetype-2.10.1-debughook.patch",
        "backport-freetype-2.12.1-enable-funcs.patch",
        "ftconfig.h"
    ]
    for file in files:
        src_file = os.path.join(src_path, file)
        dst_file = os.path.join(dst_path, file)
        shutil.copy(src_file, dst_file)

def move_include(src_path, dst_path):
    try:
        cp_cmd = ['cp', '-rf', dst_path, src_path]
        subprocess.run(cp_cmd, check=True)
    except Exception as e:
        print("cp -rf error!")
        return


def apply_patch(patch_file, target_dir):
    try:
        if not os.path.exists(target_dir):
            return
        patch_cmd = ['patch', '-p1', "--fuzz=0", "--no-backup-if-mismatch", '-i', patch_file, '-d', target_dir]
        subprocess.run(patch_cmd, check=True)
    except Exception as e:
        print("apply_patch error!")
        return


def do_patch(target_dir):
    patch_file = [
        "backport-CVE-2023-2004.patch",
        "backport-freetype-2.2.1-enable-valid.patch",
        "backport-freetype-2.3.0-enable-spr.patch",
        "backport-freetype-2.6.5-libtool.patch",
        "backport-freetype-2.8-multilib.patch",
        "backport-freetype-2.10.0-internal-outline.patch",
        "backport-freetype-2.10.1-debughook.patch",
        "backport-freetype-2.12.1-enable-funcs.patch"
    ]

    for patch in patch_file:
        apply_patch(patch, target_dir)


def main():
    freetype_path = argparse.ArgumentParser()
    freetype_path.add_argument('--gen-dir', help='generate path of log', required=True)
    freetype_path.add_argument('--source-dir', help='generate path of log', required=True)
    args = freetype_path.parse_args()
    tar_file_path = os.path.join(args.source_dir, "freetype-2.12.1.tar.xz")
    target_dir = os.path.join(args.gen_dir, "freetype")
    target_include_dir = os.path.join(target_dir, "include")

    untar_file(tar_file_path, target_dir)
    move_file(args.source_dir, target_dir)
    move_include(args.source_dir, target_include_dir)
    do_patch(target_dir)
    return 0

if __name__ == '__main__':
    sys.exit(main())