// Copyright (c) V contributors. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
module mldsa

// TODO: remove this when OpenSSL 3.5 is more widely available by default.
#flag linux -I/opt/ssl/include/openssl
#flag linux -I/opt/ssl/include/crypto
#flag linux -I/opt/ssl/include
#flag linux -L/opt/ssl/lib64

// Standard path
#flag linux -I/usr/local/include/openssl
#flag linux -I/usr/local/include/crypto
#flag linux -L/usr/local/lib64

#flag darwin -L /opt/homebrew/opt/openssl/lib -I /opt/homebrew/opt/openssl/include

#flag -I/usr/include/openssl
#flag -lcrypto

#flag darwin -I/usr/local/opt/openssl/include
#flag darwin -L/usr/local/opt/openssl/lib

#flag openbsd -I/usr/local/include/eopenssl35
#flag openbsd -L/usr/local/lib/eopenssl35 -Wl,-rpath,/usr/local/lib/eopenssl35

// Installed through choco:
#flag windows -IC:/Program Files/OpenSSL-Win64/include
#flag windows -LC:/Program Files/OpenSSL-Win64/lib/VC/x64/MD
// Installed on the CI:
#flag windows -IC:/Program Files/OpenSSL/include
#flag windows -LC:/Program Files/OpenSSL/lib/VC/x64/MD
#flag windows -l libcrypto

#include <openssl/obj_mac.h>
#include <openssl/evp.h>
#include <openssl/param_build.h>

@[typedef]
struct C.EVP_PKEY {}

@[typedef]
struct C.EVP_PKEY_CTX {}

@[typedef]
struct C.EVP_SIGNATURE {}

@[typedef]
struct C.OSSL_PARAM {}

@[typedef]
struct C.OSSL_PARAM_BLD {}

fn C.OpenSSL_version_num() u64

fn C.EVP_PKEY_new() &C.EVP_PKEY
fn C.EVP_PKEY_Q_keygen(ctx voidptr, propq &char, tipe &char) &C.EVP_PKEY
fn C.EVP_PKEY_dup(key &C.EVP_PKEY) &C.EVP_PKEY
fn C.EVP_PKEY_free(key &C.EVP_PKEY)
fn C.EVP_PKEY_size(key &C.EVP_PKEY) i32
fn C.EVP_PKEY_get0_type_name(key &C.EVP_PKEY) &char
fn C.EVP_PKEY_get_octet_string_param(pkey &C.EVP_PKEY, key_name &char, buf &u8, max_buf_sz usize, out_len &usize) i32
fn C.EVP_PKEY_set_octet_string_param(key &C.EVP_PKEY, key_name &char, buf voidptr, bsize usize) i32
fn C.EVP_PKEY_keygen_init(ctx &C.EVP_PKEY_CTX) i32
fn C.EVP_PKEY_keygen(ctx &C.EVP_PKEY_CTX, ppkey &&C.EVP_PKEY) i32
fn C.EVP_PKEY_CTX_set_params(ctx &C.EVP_PKEY_CTX, params &C.OSSL_PARAM) i32
fn C.EVP_PKEY_fromdata_init(ctx &C.EVP_PKEY_CTX) i32
fn C.EVP_PKEY_fromdata(ctx &C.EVP_PKEY_CTX, ppkey &&C.EVP_PKEY, selection i32, params &C.OSSL_PARAM) i32
fn C.EVP_PKEY_sign_message_init(ctx &C.EVP_PKEY_CTX, algo &C.EVP_SIGNATURE, params &C.OSSL_PARAM) i32
fn C.EVP_PKEY_sign(ctx &C.EVP_PKEY_CTX, sig &u8, siglen &usize, tbs &u8, tbslen usize) i32
fn C.EVP_PKEY_verify_message_init(ctx &C.EVP_PKEY_CTX, algo &C.EVP_SIGNATURE, params &C.OSSL_PARAM) i32
fn C.EVP_PKEY_verify(ctx &C.EVP_PKEY_CTX, sig &u8, siglen usize, tbs &u8, tbslen usize) i32

fn C.EVP_PKEY_CTX_new_from_name(libctx voidptr, name &char, pq voidptr) &C.EVP_PKEY_CTX
fn C.EVP_PKEY_CTX_new_from_pkey(libctx voidptr, pkey &C.EVP_PKEY, pq voidptr) &C.EVP_PKEY_CTX
fn C.EVP_PKEY_CTX_free(ctx &C.EVP_PKEY_CTX)

fn C.EVP_SIGNATURE_free(signature &C.EVP_SIGNATURE)
fn C.EVP_SIGNATURE_fetch(ctx voidptr, algorithm &char, properties voidptr) &C.EVP_SIGNATURE

fn C.OSSL_PARAM_free(params &C.OSSL_PARAM)
fn C.OSSL_PARAM_BLD_free(param_bld &C.OSSL_PARAM_BLD)
fn C.OSSL_PARAM_BLD_new() &C.OSSL_PARAM_BLD
fn C.OSSL_PARAM_BLD_push_int(bld &C.OSSL_PARAM_BLD, key &char, val i32) i32
fn C.OSSL_PARAM_BLD_push_octet_string(bld &C.OSSL_PARAM_BLD, key &char, buf voidptr, bsize usize) i32
fn C.OSSL_PARAM_BLD_to_param(bld &C.OSSL_PARAM_BLD) &C.OSSL_PARAM