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/*
 * File: mod.rs
 * Project: datagram
 * Created Date: 04/10/2023
 * Author: Shun Suzuki
 * -----
 * Last Modified: 06/10/2023
 * Modified By: Shun Suzuki (suzuki@hapis.k.u-tokyo.ac.jp)
 * -----
 * Copyright (c) 2023 Shun Suzuki. All rights reserved.
 *
 */

mod rx;
mod tx;

pub use rx::RxMessage;
pub use tx::TxDatagram;

pub fn check_if_msg_is_processed(tx: &TxDatagram, rx: &mut [RxMessage]) -> Vec<bool> {
    tx.headers()
        .zip(rx.iter())
        .map(|(h, r)| h.msg_id == r.ack)
        .collect()
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_check_if_msg_is_processed() {
        let mut tx = TxDatagram::new(3);
        let mut rx = vec![RxMessage { ack: 0, data: 0 }; 3];

        tx.header_mut(0).msg_id = 1;
        tx.header_mut(1).msg_id = 2;
        tx.header_mut(2).msg_id = 3;

        rx[0].ack = 1;
        rx[1].ack = 2;
        rx[2].ack = 3;

        check_if_msg_is_processed(&tx, &mut rx)
            .iter()
            .for_each(|&b| assert!(b));

        tx.header_mut(0).msg_id = 2;
        rx[2].ack = 2;

        let processed = check_if_msg_is_processed(&tx, &mut rx);
        assert!(!processed[0]);
        assert!(processed[1]);
        assert!(!processed[2]);
    }
}