/*
 * Copyright (C) 2025 - 2026, Stephan Mueller <smueller@chronox.de>
 *
 * License: see LICENSE file in root directory
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
 * WHICH ARE HEREBY DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */

use leancrypto_sys::lcr_hash::lcr_hash;
use leancrypto_sys::lcr_hash::lcr_hash_type;

#[test]
fn lc_rust_hash_sha3_512_alloc() {
    let msg_512: [u8; 3] = [0x82, 0xD9, 0x19];
    let exp_512: [u8; 64] = [
        0x76, 0x75, 0x52, 0x82, 0xA9, 0xC5, 0x0A, 0x67, 0xFE, 0x69, 0xBD, 0x3F,
        0xCE, 0xFE, 0x12, 0xE7, 0x1D, 0xE0, 0x4F, 0xA2, 0x51, 0xC6, 0x7E, 0x9C,
        0xC8, 0x5C, 0x7F, 0xAB, 0xC6, 0xCC, 0x89, 0xCA, 0x9B, 0x28, 0x88, 0x3B,
        0x2A, 0xDB, 0x22, 0x84, 0x69, 0x5D, 0xD0, 0x43, 0x77, 0x55, 0x32, 0x19,
        0xC8, 0xFD, 0x07, 0xA9, 0x4C, 0x29, 0xD7, 0x46, 0xCC, 0xEF, 0xB1, 0x09,
        0x6E, 0xDE, 0x42, 0x91,
    ];
    let mut act = lcr_hash::new(lcr_hash_type::lcr_sha3_512);

    let result = act.init();
    assert_eq!(result, Ok(()));

    let result = act.update(&msg_512);
    assert_eq!(result, Ok(()));

    let mut digest = vec![0u8; act.digestsize()];
    let result = act.fini(&mut digest);
    assert_eq!(result, Ok(()));

    assert_eq!(digest, &exp_512[..]);
}

#[test]
fn lc_rust_hash_sha3_512_stack() {
    let msg_512: [u8; 3] = [0x82, 0xD9, 0x19];
    let exp_512: [u8; 64] = [
        0x76, 0x75, 0x52, 0x82, 0xA9, 0xC5, 0x0A, 0x67, 0xFE, 0x69, 0xBD, 0x3F,
        0xCE, 0xFE, 0x12, 0xE7, 0x1D, 0xE0, 0x4F, 0xA2, 0x51, 0xC6, 0x7E, 0x9C,
        0xC8, 0x5C, 0x7F, 0xAB, 0xC6, 0xCC, 0x89, 0xCA, 0x9B, 0x28, 0x88, 0x3B,
        0x2A, 0xDB, 0x22, 0x84, 0x69, 0x5D, 0xD0, 0x43, 0x77, 0x55, 0x32, 0x19,
        0xC8, 0xFD, 0x07, 0xA9, 0x4C, 0x29, 0xD7, 0x46, 0xCC, 0xEF, 0xB1, 0x09,
        0x6E, 0xDE, 0x42, 0x91,
    ];
    let mut act = lcr_hash::new(lcr_hash_type::lcr_sha3_512);

    let mut digest = vec![0u8; act.digestsize()];
    let result = act.digest(&msg_512, &mut digest);
    assert_eq!(result, Ok(()));

    assert_eq!(digest, &exp_512[..]);
}

fn lc_rust_hash_stack_one(hash_type: lcr_hash_type) {
    let msg_512: [u8; 3] = [0x82, 0xD9, 0x19];
    let mut act = lcr_hash::new(hash_type);

    let mut digest = vec![0u8; act.digestsize()];
    let result = act.digest(&msg_512, &mut digest);
    assert_eq!(result, Ok(()))
}

fn lc_rust_cshake_one(
    hash_type: lcr_hash_type,
    s: &[u8],
    msg: &[u8],
    exp: &[u8],
) {
    let mut act = lcr_hash::new(hash_type);

    let result = act.cshake_init(&[], s);
    assert_eq!(result, Ok(()));

    let result = act.update(msg);
    assert_eq!(result, Ok(()));

    let result = act.set_digestsize(exp.len());
    assert_eq!(result, Ok(()));

    let mut digest = vec![0u8; exp.len()];
    let result = act.fini(&mut digest);
    assert_eq!(result, Ok(()));
    assert_eq!(digest, exp);
}

fn lc_rust_shake_one(
    hash_type: lcr_hash_type,
    msg: &[u8],
    exp: &[u8],
) {
    let mut act = lcr_hash::new(hash_type);

    let mut digest = vec![0u8; exp.len()];
    let result = act.xof(msg, &mut digest);
    assert_eq!(result, Ok(()));
    assert_eq!(digest, exp);
}

#[test]
fn lc_rust_cshake_128() {
    let msg: [u8; 9] = [0x0C, 0x77, 0x8C, 0x22, 0x60, 0xCA, 0xE8, 0x28, 0xA0];
    let cust: [u8; 161] = [
        0xD8, 0x3E, 0x11, 0x1C, 0xA8, 0x8A, 0x8D, 0xCE, 0xC6, 0xDE, 0xCD, 0x33,
        0x4D, 0x27, 0x45, 0x33, 0x47, 0xA1, 0x58, 0x1B, 0x6B, 0x88, 0x91, 0x40,
        0x73, 0xBA, 0x59, 0x90, 0x05, 0x4D, 0xC0, 0xE4, 0xDE, 0x22, 0x08, 0xF8,
        0x63, 0x31, 0x79, 0xB9, 0xB6, 0xE8, 0x17, 0x4E, 0xC7, 0xC9, 0x7B, 0xD6,
        0xFF, 0x55, 0x5D, 0xEE, 0x6F, 0x4A, 0x2C, 0xE1, 0x37, 0x75, 0x4D, 0x21,
        0x43, 0x44, 0xB7, 0xDE, 0x2C, 0x95, 0xFD, 0xC8, 0xFE, 0x44, 0x88, 0xA4,
        0x90, 0xC7, 0x65, 0x98, 0x69, 0xC9, 0xB5, 0xC1, 0xDC, 0x9D, 0xD4, 0xBD,
        0x2B, 0xED, 0x7A, 0xDC, 0xEA, 0x06, 0x3D, 0xEC, 0xD6, 0x09, 0x80, 0x1C,
        0x81, 0x80, 0x17, 0x7D, 0x8B, 0x57, 0x73, 0xD3, 0x12, 0x89, 0xDB, 0xE9,
        0x26, 0x17, 0xE7, 0x75, 0x61, 0x24, 0x2B, 0xC3, 0x60, 0x38, 0x5E, 0x43,
        0x13, 0x89, 0x20, 0x72, 0x18, 0x9A, 0x2D, 0x6B, 0xB0, 0x8C, 0xAF, 0x51,
        0x3E, 0x17, 0xE6, 0x07, 0x61, 0x34, 0xF5, 0x8A, 0x30, 0x8D, 0x65, 0x0B,
        0x79, 0x55, 0x86, 0x04, 0x75, 0x31, 0xA9, 0x31, 0xD1, 0x55, 0x94, 0x71,
        0x5F, 0xD5, 0x08, 0x07, 0x13,
    ];
    let exp: [u8; 12] = [
        0x77, 0x6e, 0x75, 0x95, 0x0d, 0xdd, 0x3b, 0xf8, 0xc6, 0xcd, 0x35, 0xfe,
    ];

    lc_rust_cshake_one(lcr_hash_type::lcr_cshake_128, &cust, &msg, &exp)
}

#[test]
fn lc_rust_cshake_256() {
    let msg: [u8; 12] = [
        0xAF, 0x98, 0xC2, 0x12, 0x96, 0x1A, 0xAA, 0x55, 0xBD, 0x3C, 0x61, 0xF1,
    ];
    let cust: [u8; 98] = [
        0x41, 0xE6, 0x62, 0x6C, 0x45, 0x41, 0x10, 0x9D, 0x57, 0x77, 0x17, 0x40,
        0x80, 0x09, 0xB0, 0x6B, 0x0C, 0x01, 0xF3, 0x5A, 0xC1, 0xAA, 0xB1, 0xDB,
        0x57, 0x9E, 0x7D, 0xE6, 0x7B, 0xD2, 0xDF, 0xFB, 0x43, 0x7A, 0x65, 0x62,
        0xF3, 0x81, 0x9D, 0xE5, 0x01, 0x8C, 0xBC, 0xB6, 0x66, 0x7D, 0x90, 0xF1,
        0x21, 0x05, 0x6E, 0xB0, 0xC3, 0x60, 0x65, 0xA6, 0x48, 0x56, 0xED, 0xE2,
        0x27, 0x12, 0x29, 0x14, 0x2D, 0x7D, 0xBD, 0x10, 0xFB, 0xD1, 0x71, 0x7A,
        0xB2, 0xB6, 0xBB, 0x27, 0x50, 0xF9, 0x32, 0x45, 0x81, 0xA4, 0xF9, 0xA4,
        0xE7, 0x0D, 0x79, 0x00, 0x8B, 0x60, 0x34, 0x65, 0xFB, 0x50, 0x9C, 0xBC,
        0xB3, 0x0D,
    ];
    let exp: [u8; 91] = [
        0x90, 0x67, 0x5B, 0x96, 0x09, 0x63, 0xE9, 0x2A, 0x5D, 0x2E, 0x66, 0xE3,
        0x15, 0x8D, 0x0E, 0xE5, 0xC0, 0x7B, 0x83, 0xBB, 0x23, 0x7B, 0x2A, 0x51,
        0xE7, 0xE1, 0x24, 0x03, 0x68, 0xBD, 0x9F, 0x39, 0xC0, 0x96, 0x6E, 0x94,
        0x37, 0x3B, 0x52, 0x6A, 0x79, 0x1F, 0xD4, 0x03, 0x4E, 0x46, 0xFD, 0x46,
        0xEA, 0xAF, 0x57, 0x92, 0xB8, 0x4E, 0x50, 0x92, 0x81, 0xB6, 0x11, 0xD2,
        0x72, 0x14, 0xC7, 0xEE, 0x2F, 0x93, 0xDD, 0x46, 0x62, 0x7D, 0x09, 0x2D,
        0xD8, 0xA1, 0x58, 0x87, 0xEF, 0x5A, 0xAA, 0x3C, 0x46, 0x8D, 0x7A, 0x4C,
        0x57, 0x71, 0x7B, 0x9A, 0x4C, 0x92, 0xEA,
    ];

    lc_rust_cshake_one(lcr_hash_type::lcr_cshake_256, &cust, &msg, &exp)
}

#[test]
fn lc_rust_shake_128() {
    let msg: [u8; 14] = [
        0xBE, 0x94, 0xD8, 0x3D, 0x37, 0x66, 0xCF, 0x3E, 0xD3, 0x0A, 0x11, 0x0C,
        0x47, 0xA2,
    ];
    let exp: [u8; 16] = [
        0xB0, 0x46, 0x01, 0xAA, 0x4D, 0x2C, 0x30, 0xF6, 0x5F, 0x94, 0xD7, 0x02,
        0x5D, 0xBD, 0x22, 0x39,
    ];

    lc_rust_shake_one(lcr_hash_type::lcr_shake_128, &msg, &exp)
}

#[test]
fn lc_rust_shake_256() {
    let msg: [u8; 32] = [
        0x6C, 0x9E, 0xC8, 0x5C, 0xBA, 0xBA, 0x62, 0xF5, 0xBC, 0xFE, 0xA1, 0x9E,
        0xB9, 0xC9, 0x20, 0x52, 0xD8, 0xFF, 0x18, 0x81, 0x52, 0xE9, 0x61, 0xC1,
        0xEC, 0x5C, 0x75, 0xBF, 0xC3, 0xC9, 0x1C, 0x8D,
    ];
    let exp: [u8; 33] = [
        0x7d, 0x6a, 0x09, 0x6e, 0x13, 0x66, 0x1d, 0x9d, 0x0e, 0xca, 0xf5, 0x38,
        0x30, 0xa1, 0x92, 0x87, 0xe0, 0xb3, 0x6e, 0xce, 0x48, 0x82, 0xeb, 0x58,
        0x0b, 0x78, 0x5c, 0x1d, 0xef, 0x2d, 0xe5, 0xaa, 0x6c,
    ];

    lc_rust_shake_one(lcr_hash_type::lcr_shake_256, &msg, &exp)
}

#[test]
fn lc_rust_hash_sha3_512() {
    lc_rust_hash_stack_one(lcr_hash_type::lcr_sha3_512)
}

#[test]
fn lc_rust_hash_sha3_384() {
    lc_rust_hash_stack_one(lcr_hash_type::lcr_sha3_384)
}

#[test]
fn lc_rust_hash_sha3_256() {
    lc_rust_hash_stack_one(lcr_hash_type::lcr_sha3_256)
}

#[test]
fn lc_rust_hash_sha2_512() {
    lc_rust_hash_stack_one(lcr_hash_type::lcr_sha2_512)
}

#[test]
fn lc_rust_hash_sha2_256() {
    lc_rust_hash_stack_one(lcr_hash_type::lcr_sha2_256)
}

#[test]
fn lc_rust_hash_ascon_256() {
    lc_rust_hash_stack_one(lcr_hash_type::lcr_ascon_256)
}
