import os
import re

from starlette.endpoints import HTTPEndpoint
from starlette.requests import Request
from starlette.responses import JSONResponse
from starlette.exceptions import HTTPException

from orm.author import Author
from services.db import local_session
from services.logger import root_logger as logger


class WebhookEndpoint(HTTPEndpoint):
    async def post(self, request: Request) -> JSONResponse:
        try:
            data = await request.json()
            if not data:
                raise HTTPException(status_code=400, detail="Request body is empty")
            auth = request.headers.get('Authorization')
            if not auth or auth != os.environ.get('WEBHOOK_SECRET'):
                raise HTTPException(status_code=401, detail="Invalid Authorization header")
            logger.debug(data)
            user = data.get('user')
            if not isinstance(user, dict):
                raise HTTPException(status_code=400, detail="User data is not a dictionary")
            user_id: str = user.get('id')
            name: str = user.get('given_name', user.get('slug'))
            email: str = user.get('email', '')
            pic: str = user.get('picture', '')

            with local_session() as session:
                author = session.query(Author).filter(Author.user == user_id).first()
                if not author:
                    # If the author does not exist, create a new one
                    slug: str = email.split('@')[0].replace(".", "-").lower()
                    slug: str = re.sub('[^0-9a-z]+', '-', slug)
                    while True:
                        author = session.query(Author).filter(Author.slug == slug).first()
                        if not author:
                            break
                        slug = f"{slug}-{len(session.query(Author).filter(Author.email == email).all()) + 1}"
                    author = Author(user=user_id, slug=slug, name=name, pic=pic)
                    session.add(author)
                    session.commit()

            return JSONResponse({'status': 'success'})
        except HTTPException as e:
            return JSONResponse({'status': 'error', 'message': str(e.detail)}, status_code=e.status_code)
        except Exception as e:
            import traceback

            traceback.print_exc()
            return JSONResponse({'status': 'error', 'message': str(e)}, status_code=500)