from .instructpix2pix import InstructPix2Pix, MagicBrush

from typing import Union, Optional, Tuple
import numpy as np
from PIL import Image, ImageOps
import os
import requests




def load_image(image: Union[str, Image.Image], format: str = "RGB", size: Optional[Tuple] = None) -> Image.Image:
    """
    Load an image from a given path or URL and convert it to a PIL Image.

    Args:
        image (Union[str, Image.Image]): The image path, URL, or a PIL Image object to be loaded.
        format (str, optional): Desired color format of the resulting image. Defaults to "RGB".
        size (Optional[Tuple], optional): Desired size for resizing the image. Defaults to None.

    Returns:
        Image.Image: A PIL Image in the specified format and size.

    Raises:
        ValueError: If the provided image format is not recognized.
    """
    if isinstance(image, str):
        if image.startswith("http://") or image.startswith("https://"):
            image = Image.open(requests.get(image, stream=True).raw)
        elif os.path.isfile(image):
            image = Image.open(image)
        else:
            raise ValueError(
                f"Incorrect path or url, URLs must start with `http://` or `https://`, and {image} is not a valid path"
            )
    elif isinstance(image, Image.Image):
        image = image
    else:
        raise ValueError(
            "Incorrect format used for image. Should be an url linking to an image, a local path, or a PIL image."
        )
    image = ImageOps.exif_transpose(image)
    image = image.convert(format)
    if (size != None):
        image = image.resize(size, Image.LANCZOS)
    return image