# built-in dependencies
import os
import hashlib

# 3rd party dependencies
import tensorflow as tf

# package dependencies
from deepface.commons.logger import Logger

logger = Logger(module="commons.package_utils")


def get_tf_major_version() -> int:
    """
    Find tensorflow's major version
    Returns
        major_version (int)
    """
    return int(tf.__version__.split(".", maxsplit=1)[0])


def get_tf_minor_version() -> int:
    """
    Find tensorflow's minor version
    Returns
        minor_version (int)
    """
    return int(tf.__version__.split(".", maxsplit=-1)[1])


def find_hash_of_file(file_path: str) -> str:
    """
    Find the hash of given image file with its properties
        finding the hash of image content is costly operation
    Args:
        file_path (str): exact image path
    Returns:
        hash (str): digest with sha1 algorithm
    """
    file_stats = os.stat(file_path)

    # some properties
    file_size = file_stats.st_size
    creation_time = file_stats.st_ctime
    modification_time = file_stats.st_mtime

    properties = f"{file_size}-{creation_time}-{modification_time}"

    hasher = hashlib.sha1()
    hasher.update(properties.encode("utf-8"))
    return hasher.hexdigest()