#!/usr/bin/env python3.12

import logging

from fastapi import FastAPI, Response, HTTPException
from fastapi.responses import RedirectResponse


class Utilities:
    """API Utilities"""
    def __init__(self, app: FastAPI, constants): 
        self.constants = constants
        self.blocked_redirect_uri = "https://codey.lol"
        self.app = app

    def get_blocked_response(self, path: str | None = None): # pylint: disable=unused-argument
        """Get Blocked HTTP Response"""
        logging.error("Rejected request: Blocked")
        return RedirectResponse(url=self.blocked_redirect_uri)

    def get_no_endpoint_found(self, path: str | None = None): # pylint: disable=unused-argument
        """Get 404 Response"""
        logging.error("Rejected request: No such endpoint")
        raise HTTPException(detail="Unknown endpoint", status_code=404)

    def check_key(self, path: str, key: str, req_type: int = 0):
        """
        Accepts path as an argument to allow fine tuning access for each API key, not currently in use.
        """

        if not key or not key.startswith("Bearer "):
            return False
        
        key = key.split("Bearer ", maxsplit=1)[1].strip()

        if not key in self.constants.API_KEYS:
            return False
        
        if req_type == 2:
            return key.startswith("PRV-")
        elif req_type == 4:
            return key.startswith("RAD-")
        
        if path.lower().startswith("/xc/") and not key.startswith("XC-"):
            return False

        return True