//! Small injectable time boundary for deterministic activity records.

use std::time::{SystemTime, UNIX_EPOCH};

pub trait Clock {
    fn now(&self) -> String;
}

pub struct SystemClock;

impl Clock for SystemClock {
    fn now(&self) -> String {
        let seconds = SystemTime::now()
            .duration_since(UNIX_EPOCH)
            .map(|duration| duration.as_secs())
            .unwrap_or(0);
        format!("unix:{seconds}")
    }
}