from fastapi import HTTPException, status


class NotFoundError(HTTPException):
    """Exception raised when a resource is not found."""

    def __init__(self, detail: str = "Resource not found"):
        super().__init__(status_code=status.HTTP_404_NOT_FOUND, detail=detail)


class BadRequestError(HTTPException):
    """Exception raised for bad requests."""

    def __init__(self, detail: str = "Bad request"):
        super().__init__(status_code=status.HTTP_400_BAD_REQUEST, detail=detail)


class UnauthorizedError(HTTPException):
    """Exception raised for unauthorized access attempts."""

    def __init__(self, detail: str = "Not authorized"):
        super().__init__(status_code=status.HTTP_401_UNAUTHORIZED, detail=detail)


class ForbiddenError(HTTPException):
    """Exception raised for forbidden access attempts."""

    def __init__(self, detail: str = "Forbidden"):
        super().__init__(status_code=status.HTTP_403_FORBIDDEN, detail=detail)


class ConflictError(HTTPException):
    """Exception raised for resource conflicts."""

    def __init__(self, detail: str = "Resource conflict"):
        super().__init__(status_code=status.HTTP_409_CONFLICT, detail=detail)