import os


class FileReader:

    def __init__(self, root: str):
        if not os.path.isdir(root):
            raise Exception("Root was not a valid directory! {0}".format(root))
        self.__root = root

    def list_artists(self) -> list:
        """
        List all Artists within the root folder
        :return:
        """
        l = [os.path.basename(x) for x in os.listdir(self.__root)]
        if ".artnet" in l:
            l.remove(".artnet")
        return l

    def get_files(self, artist: str) -> list:
        """
        List all files within the given artists directory with their relative path (to the root).
        :param artist:
        :return:
        """
        l = []

        root = os.path.join(self.__root)
        dirs = [artist]

        while len(dirs) != 0:
            curr_dir = dirs.pop()
            curr_full_dir = os.path.join(root, curr_dir)
            l += [os.path.join(curr_dir, f) for f in os.listdir(curr_full_dir) if os.path.isfile(os.path.join(curr_full_dir, f))]
            for d in [x for x in os.listdir(curr_full_dir) if os.path.isdir(os.path.join(curr_full_dir, x))]:
                dirs.append(os.path.join(curr_dir, d))

        return l


if __name__ == "__main__":
    fr = FileReader("/home/peery/Software_Projects/ArtNet/App/Fake_Other_Artists")
    print(fr.list_artists())
    print(fr.get_files("AkuDrache"))