//! Helpers for handling CREATE* cells.

use crate::circuit::celltypes::CreateResponse;

use crate::{Error, Result};

use tor_cell::chancell;

use tor_cell::chancell::msg::{AnyChanMsg, HandshakeType};

/// An object that can put a given handshake into a ChanMsg for a CREATE*

/// cell, and unwrap a CREATED* cell.

pub(crate) trait CreateHandshakeWrap {

    /// Construct an appropriate ChanMsg to hold this kind of handshake.

    fn to_chanmsg(&self, bytes: Vec<u8>) -> AnyChanMsg;

    /// Decode a ChanMsg to an appropriate handshake value, checking

    /// its type.

    fn decode_chanmsg(&self, msg: CreateResponse) -> Result<Vec<u8>>;

}

/// A CreateHandshakeWrap that generates CREATE_FAST and handles CREATED_FAST.

pub(crate) struct CreateFastWrap;

impl CreateHandshakeWrap for CreateFastWrap {

        use CreateResponse::*;

        }

}

/// A CreateHandshakeWrap that generates CREATE2 and handles CREATED2

pub(crate) struct Create2Wrap {

    /// The handshake type to put in the CREATE2 cell.

    pub(crate) handshake_type: HandshakeType,

}

impl CreateHandshakeWrap for Create2Wrap {

        use CreateResponse::*;

        }

}