import logging
import os
from dataclasses import dataclass
from io import BytesIO

import openai
from dotenv import load_dotenv
from openai import OpenAI
from PIL import Image
from pydantic import validator
from termcolor import colored

load_dotenv()

api_key = os.getenv("OPENAI_API_KEY")

# Configure Logging
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)


@dataclass
class Dalle3:
    """
    Dalle3 model class

    Attributes:
    -----------
    image_url: str
        The image url generated by the Dalle3 API

    Methods:
    --------
    __call__(self, task: str) -> Dalle3:
        Makes a call to the Dalle3 API and returns the image url

    Example:
    --------
    >>> dalle3 = Dalle3()
    >>> task = "A painting of a dog"
    >>> image_url = dalle3(task)
    >>> print(image_url)
    https://cdn.openai.com/dall-e/encoded/feats/feats_01J9J5ZKJZJY9.png

    """

    model: str = "dall-e-3"
    img: str = None
    size: str = "1024x1024"
    max_retries: int = 3
    quality: str = "standard"
    n: int = 4
    client = OpenAI(
        api_key=api_key,
        max_retries=max_retries,
    )

    class Config:
        """Config class for the Dalle3 model"""

        arbitrary_types_allowed = True

    @validator("max_retries", "time_seconds")
    def must_be_positive(cls, value):
        if value <= 0:
            raise ValueError("Must be positive")
        return value

    def read_img(self, img: str):
        """Read the image using pil"""
        img = Image.open(img)
        return img

    def set_width_height(self, img: str, width: int, height: int):
        """Set the width and height of the image"""
        img = self.read_img(img)
        img = img.resize((width, height))
        return img

    def convert_to_bytesio(self, img: str, format: str = "PNG"):
        """Convert the image to an bytes io object"""
        byte_stream = BytesIO()
        img.save(byte_stream, format=format)
        byte_array = byte_stream.getvalue()
        return byte_array

    # @lru_cache(maxsize=32)
    def __call__(self, task: str):
        """
        Text to image conversion using the Dalle3 API

        Parameters:
        -----------
        task: str
            The task to be converted to an image

        Returns:
        --------
        Dalle3:
            An instance of the Dalle3 class with the image url generated by the Dalle3 API

        Example:
        --------
        >>> dalle3 = Dalle3()
        >>> task = "A painting of a dog"
        >>> image_url = dalle3(task)
        >>> print(image_url)
        https://cdn.openai.com/dall-e/encoded/feats/feats_01J9J5ZKJZJY9.png
        """
        try:
            # Making a call to the the Dalle3 API
            response = self.client.images.generate(
                model=self.model,
                prompt=task,
                size=self.size,
                quality=self.quality,
                n=self.n,
            )
            # Extracting the image url from the response
            img = response.data[0].url
            return img
        except openai.OpenAIError as error:
            # Handling exceptions and printing the errors details
            print(
                colored(
                    f"Error running Dalle3: {error} try optimizing your api key and or try again",
                    "red",
                )
            )
            raise error
    
    def create_variations(self, img: str):
        """
        Create variations of an image using the Dalle3 API

        Parameters:
        -----------
        img: str
            The image to be used for the API request

        Returns:
        --------
        img: str
            The image url generated by the Dalle3 API

        Example:
        --------
        >>> dalle3 = Dalle3()
        >>> img = "https://cdn.openai.com/dall-e/encoded/feats/feats_01J9J5ZKJZJY9.png"
        >>> img = dalle3.create_variations(img)
        >>> print(img)

        
        """
        try:

            response = self.client.images.create_variation(
                img = open(img, "rb"),
                n=self.n,
                size=self.size
            )
            img = response.data[0].url

            return img
        except (Exception, openai.OpenAIError) as error:
            print(
                colored(
                    f"Error running Dalle3: {error} try optimizing your api key and or try again",
                    "red",
                )
            )
            print(colored(f"Error running Dalle3: {error.http_status}", "red"))
            print(colored(f"Error running Dalle3: {error.error}", "red"))
            raise error