import logging

import requests

from imagebot import settings
from idescriptor.models import Image


class FediClient:
    def __init__(self, access_token, api_base_url):
        """
        :param access_token: Your server API access token.
        :param api_base_url: The base URL of the Fediverse instance (e.g., 'https://gay-pirate-assassins.de').
        """
        self.access_token = access_token
        self.api_base_url = api_base_url.rstrip('/')
        self.headers = {
            'Authorization': f'Bearer {self.access_token}',
        }

    def upload_media(self, image_path, alt_text):
        """
        Uploads media (image) to the server and returns the media ID.
        :param image_path: Path to the image file to upload.
        :param alt_text: Description (alt text) for the image.
        :return: The media ID of the uploaded image.
        """

        media_endpoint = f'{self.api_base_url}/api/v2/media'

        with open(image_path, 'rb') as image_file:
            files = {
                'file': image_file,
                'description': (None, alt_text)
            }
            response = requests.post(media_endpoint, headers=self.headers, files=files)

            # Raise exception if upload fails
            response.raise_for_status()

        # Parse and return the media ID from the response
        media_id = response.json().get('id')
        return media_id

    def post_status(self, status, media_ids=None):
        """
        Posts a status to Mastodon with optional media.
        :param status: The text of the status to post.
        :param media_ids: A list of media IDs to attach to the status (optional).
        :return: The response from the Mastodon API.
        """
        status_endpoint = f'{self.api_base_url}/api/v1/statuses'

        payload = {
            'status': status,
            'media_ids[]': media_ids if media_ids else []
        }
        response = requests.post(status_endpoint, headers=self.headers, data=payload)

        # Raise exception if posting fails
        response.raise_for_status()

        return response.json()

    def post_status_with_image(self, status, image_path, alt_text):
        """
        Uploads an image, then posts a status with that image and alt text.
        :param status: The text of the status.
        :param image_path: The path to the image file.
        :param alt_text: The alt text for the image.
        :return: The response from the Mastodon API.
        """
        # Upload the image and get the media ID
        media_id = self.upload_media(image_path, alt_text)

        # Post the status with the uploaded image's media ID
        return self.post_status(status, media_ids=[media_id])


def post():
    ACCESS_TOKEN = settings.FEDIVERSE_TOKEN
    API_BASE_URL = f"https://{settings.FEDIVERSE_SERVER}"
    client = FediClient(ACCESS_TOKEN, API_BASE_URL)

    image = Image.get_image_to_post()

    status_text = image.title
    image_path = f"{settings.MEDIA_ROOT}/{image.image}"
    alt_text = image.alt_text

    try:
        response = client.post_status_with_image(status_text, image_path, alt_text)
        logging.info(response)
        image.set_image_posted()
    except requests.exceptions.ConnectionError as e:
        logging.error(f"Could not post image: {e}")


if __name__ == "__main__":
    post()