mod air;
mod columns;
mod controller;
mod trace;

pub const SHA_COMPRESS_K: [u32; 64] = [
    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
    0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
    0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
    0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
    0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
    0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
    0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
];

/// Implements the SHA compress operation which loops over 0 = [0, 63] and modifies A-H in each
/// iteration. The inputs to the syscall are a pointer to the 64 word array W and a pointer to the 8
/// word array H.
///
/// In the AIR, each SHA compress syscall takes up 80 rows. The first and last 8 rows are for
/// initialization and finalize respectively. The middle 64 rows are for compression. Each row
/// operates over a single memory word.
#[derive(Default)]
pub struct ShaCompressChip;

impl ShaCompressChip {
    pub const fn new() -> Self {
        Self {}
    }
}

/// Implements the controller for the ShaCompressChip, which receives the syscalls and sends it to
/// the chip.
#[derive(Default)]
pub struct ShaCompressControlChip;

#[cfg(test)]
pub mod compress_tests {

    use std::sync::Arc;

    use sp1_core_executor::Program;
    use test_artifacts::SHA_COMPRESS_ELF;

    use crate::{
        io::SP1Stdin,
        utils::{run_test, setup_logger},
    };

    #[tokio::test]
    async fn test_sha_compress_program() {
        setup_logger();
        let program = Arc::new(Program::from(&SHA_COMPRESS_ELF).unwrap());
        let stdin = SP1Stdin::new();
        run_test(program, stdin).await.unwrap();
    }
}
