use alloc::vec::Vec;

use crate::error::InvalidMessage;

use crate::msgs::codec::{Codec, Reader};

#[derive(Debug)]

pub struct ChangeCipherSpecPayload;

impl Codec<'_> for ChangeCipherSpecPayload {

    fn encode(&self, bytes: &mut Vec<u8>) {

        1u8.encode(bytes);

    }

    fn read(r: &mut Reader<'_>) -> Result<Self, InvalidMessage> {

        let typ = u8::read(r)?;

        if typ != 1 {

            return Err(InvalidMessage::InvalidCcs);

        }

        r.expect_empty("ChangeCipherSpecPayload")

            .map(|_| Self {})

    }

}