use std::str::FromStr;
use anyhow::Result;
use ethereum_types::U256;

use crate::cpu::kernel::aggregator::combined_kernel;
use crate::cpu::kernel::interpreter::run;

#[test]
fn test_ripemd() -> Result<()> {
    let expected = "0xf71c27109c692c1b56bbdceb5b9d2865b3708dbc";
    println!("{}", expected);

    let kernel = combined_kernel();

    let input: Vec<u32> = vec![
                    0x61, 0x62, 
        0x63, 0x64, 0x65, 0x66, 
        0x67, 0x68, 0x69, 0x6a, 
        0x6b, 0x6c, 0x6d, 0x6e, 
        0x6f, 0x70, 0x71, 0x72, 
        0x73, 0x74, 0x75, 0x76, 
        0x77, 0x78, 0x79, 0x7a,
    ];
    let mut stack_init:Vec<U256> = input.iter().map(|&x| U256::from(x as u32)).collect();
    stack_init.push(U256::from_str("0xdeadbeef").unwrap());



    let stack_result = run(
        &kernel.code, 
        kernel.global_labels["ripemd_alt"],
        stack_init,
        &kernel.prover_inputs
    )?;
    let result = stack_result.stack()[1];
    let actual = format!("{:X}", result);
    println!("{}", actual); 
    assert_eq!(expected, actual);

    Ok(())
}


// use std::str::FromStr;

// use anyhow::Result;
// use ethereum_types::U256;
// use rand::{thread_rng, Rng};
// use sha2::{Digest, Sha256};

// use crate::cpu::kernel::aggregator::combined_kernel;
// use crate::cpu::kernel::interpreter::run;

// #[test]
// fn test_sha2() -> Result<()> {
//     let kernel = combined_kernel();
//     let sha2 = kernel.global_labels["sha2"];

//     let mut rng = thread_rng();

//     let num_bytes = rng.gen_range(0..10000);
//     let message: Vec<u8> = (0..num_bytes).map(|_| rng.gen()).collect();

//     let mut hasher = Sha256::new();
//     hasher.update(message.clone());
//     let expected = format!("{:X}", hasher.finalize());

//     let bytes: Vec<U256> = message.iter().map(|&x| U256::from(x as u32)).collect();

//     let mut initial_stack = vec![U256::from(num_bytes)];
//     initial_stack.extend(bytes);
//     initial_stack.push(U256::from_str("0xdeadbeef").unwrap());
//     initial_stack.reverse();

//     let after_sha2 = run(&kernel.code, sha2, initial_stack, &kernel.prover_inputs)?;
//     let stack_after_sha2 = after_sha2.stack();
//     let result = stack_after_sha2[1];
//     let actual = format!("{:X}", result);

//     assert_eq!(expected, actual);

//     Ok(())
// }