import pyjkernel
import os
import argparse


def unpack_dir(archive: pyjkernel.JKRArchive, dir: str, verbose=False):
    if verbose:
        print("Dumping dir: " + dir)
    # create all files
    for file in archive.list_files(dir):
        if verbose:
            print("Dumping file: " + file.name)
        with open(os.path.join(dir, file.name), "wb") as f:
            f.write(archive.get_file(dir + '/' + file.name).data)

    # create all subdirectories and recurse through them
    for subdir in archive.list_folders(dir):
        if not os.path.exists(dir + '/' + subdir):
            os.mkdir(dir + '/' + subdir)
        unpack_dir(archive, dir + '/' + subdir, verbose)


def unpack_archive(path: str, out_path: str, verbose=False):
    archive = pyjkernel.from_archive_file(path, True)
    orig_dir = os.path.abspath(os.curdir)
    os.chdir(out_path)
    if not os.path.exists(archive.root_name):
        os.mkdir(archive.root_name)
    unpack_dir(archive, archive.root_name, verbose)
    os.chdir(orig_dir)


def pack_dir(archive: pyjkernel.JKRArchive, path: str, verbose=False):
    local_path = os.path.dirname(path)
    orig_dir = os.path.abspath(os.curdir)
    if local_path != "":
        os.chdir(local_path)
    local_root = os.path.basename(os.path.normpath(path))

    for root, dirs, files in os.walk(local_root):
        root = root.replace('\\', '/')
        files.sort(key=lambda item: (item.lower(), item))
        for dir in dirs:
            archive.create_folder(root + '/' + dir)

        for file in files:
            file = file.replace('\\', '/')
            if verbose:
                print("Packing file: " + root + '/' + file)
            with open(root + '/' + file, "rb") as f:
                archive.create_file(
                    root + '/' + file,
                    bytearray(f.read()),
                    pyjkernel.JKRPreloadType.ARAM,
                )
    os.chdir(orig_dir)


def pack_archive(root_path: str, out_path: str, verbose=False):
    root_name = os.path.basename(os.path.normpath(root_path))
    archive = pyjkernel.create_new_archive(root_name)
    pack_dir(archive, root_path, verbose)
    pyjkernel.write_archive_file(
        archive, out_path, True, pyjkernel.jkrcomp.JKRCompression.NONE, 0
    )


def main():
    parser = argparse.ArgumentParser(
        description="Pack or unpack JSystem JKernel archives."
    )
    parser.add_argument(
        "-v", help="Enable verbose logging.", required=False, action="store_true"
    )
    parser.add_argument(
        "path", help="The path of the folder to pack or archive file to unpack."
    )
    parser.add_argument("out", help="The path of the destination folder or file.")

    args = parser.parse_args()
    if os.path.isfile(args.path):
        unpack_archive(args.path, args.out, args.v)
    elif os.path.isdir(args.path):
        pack_archive(args.path, args.out, args.v)
    else:
        raise Exception("path is not a valid file or directory!")


if __name__ == "__main__":
    main()