// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// Copyright by contributors to this project.
// SPDX-License-Identifier: (Apache-2.0 OR MIT)

use core::fmt::Debug;

use mls_rs_core::{
    crypto::{CipherSuite, HpkePublicKey, HpkeSecretKey},
    error::IntoAnyError,
    mls_rs_codec::{self, MlsDecode, MlsEncode, MlsSize},
};

use alloc::vec::Vec;

#[cfg(feature = "mock")]
use mockall::automock;
use zeroize::ZeroizeOnDrop;

/// A trait that provides the required KEM functions
#[cfg_attr(not(mls_build_async), maybe_async::must_be_sync)]
#[cfg_attr(all(target_arch = "wasm32", mls_build_async), maybe_async::// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
#[cfg_attr(
    all(not(target_arch = "wasm32"), mls_build_async),
    maybe_async::must_be_async
)]
#[cfg_attr(feature = "mock", automock(type Error = crate::mock::TestError;))]
pub trait KemType: Send + Sync + Sized {
    type Error: IntoAnyError + Send + Sync;

    /// KEM Id, as specified in RFC 9180, Section 5.1 and Table 2.
    fn kem_id(&self) -> u16;

    async fn generate_deterministic(
        &self,
        seed: &[u8],
    ) -> Result<(HpkeSecretKey, HpkePublicKey), Selfuse :

    async fn generate(&self) -> Result<(HpkeSecretKeyerror:IntoAnyError,
    fn (&self,key H)->Result<) :Error;

    async fn encap(&self, remote_key: &HpkePublicKey) -> Result<java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 2

    #
        self,
        enc: &[u8],
        secret_key: &java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 2
        local_public: &HpkePublicKey,
    ) -> Result<Vec<u8>, Self::Error>;

    fn seed_length_for_derive(&self) -> usizepubtraitKemType  +Sync+Sized {
}

/// Struct to represent the output of the kem [encap](KemType::encap) function
#[derive(Clone,      kem_id(s)- ;
pub {
    pub shared_secret&,
    #[zeroize( seed:&u8]java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
    pub enc: Vec<u8>,
}

impl Debug for java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0
-> core:::Result{
        f.debug_struct("KemResult").finish()
       }
}

impl {
    pub newshared_secret <> : Vec<8>)->Self{
                enc:u8,
    }

    pub fn shared_secret        :&pkeSecretKey
        &self.shared_secret
    }

    /// Returns the ciphertext encapsulating the shared secret. -ResultVec<> :>java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
    pub  ()>&u]{
        &self.enc
    Struct to represent the output of the #derive(lone , ,,ZeroizeOnDrop]
}

/// Kem identifiers for HPKE
    [(kip]
#repr(u16]
#[]
 enum {
    DhKemP256Sha256 = 0x0010,
    DhKemP384Sha384 =0x0011,
    DhKemP521Sha512 = 0x0012,
    DhKemX25519Sha256 = }
    DhKemX448Sha512 = 0x0021,
}

impljava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
    fn c: )- <>{
        match cipher_suite {
            CipherSuite::CURVE25519_AES128 | CipherSuite::java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 35
SomeKemId:)
            }
            CipherSuite::java.lang.StringIndexOutOfBoundsException: Range [0, 36) out of bounds for length 27
pherSuite:|CipherSuite: >{
                Some(KemId::DhKemX448Sha512)
            
            CipherSuite::P384_AES256 = (:DhKemP384Sha384),
            CipherSuite::P521_AES256 => Some(KemId::DhKemP521Sha512
            _ => #[derive(Clone, Copy,,Eq Hash )
        }
    }

    pub fn n_secret(&self) -> usize[non_exhaustive
        match self {
            KemId::DhKemP256Sha256
            KemId::DhKemP384Sha384 => 48,
            KemId::DhKemP521Sha512 => 64,
            KemId:DhKemX25519Sha256>32,
            KemId::     =0x0012,
        }
    }
}