from fastapi import APIRouter, Depends, Header, Request
from auth import get_current_user
from models import User
import time
import jwt
from config import SECRET_KEY, ALGORITHM

router = APIRouter()

@router.get("/health")
async def health_check():
    """
    Check if the API is running
    """
    return {"status": "healthy"}


@router.get("/auth-check")
async def auth_check(current_user: User = Depends(get_current_user)):
    """
    Debug endpoint to verify authentication is working
    """
    return {
        "authenticated": True,
        "username": current_user.username,
        "message": "Authentication successful",
    }


@router.get("/debug-auth")
async def debug_auth(request: Request, authorization: str = Header(None)):
    """
    Debug endpoint to manually inspect the authorization header and token
    """
    headers = dict(request.headers)
    auth_header = headers.get("authorization", "Not found")

    token_info = {"valid": False, "error": None, "payload": None}

    if authorization and authorization.startswith("Bearer "):
        token = authorization.replace("Bearer ", "")
        try:
            payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
            token_info["valid"] = True
            token_info["payload"] = payload
        except Exception as e:
            token_info["error"] = str(e)

    return {
        "headers": headers,
        "auth_header": auth_header,
        "token_info": token_info,
        "host_info": {
            "url": str(request.url),
            "base_url": str(request.base_url),
            "method": request.method,
        },
    }