// std.time (PLAN-HTTPZ S1): the wall clock reads a plausible epoch and
// the monotonic clock advances and never runs backwards. The `time`
// alias rides the std.sx namespace tail like its siblings.
#import "modules/std.sx";

main :: () -> i32 {
    now := time.now_secs();
    if now < 1767225600 {            // before 2026-01-01: implausible
        print("wall clock implausibly old: {}\n", now);
        return 1;
    }
    if now > 4102444800 {            // after 2100-01-01: implausible
        print("wall clock implausibly far: {}\n", now);
        return 1;
    }

    a := time.mono_ms();
    b := a;
    spins := 0;
    while b == a and spins < 100000000 {   // a real ms tick arrives long before the bound
        b = time.mono_ms();
        spins += 1;
    }
    if b < a {
        print("monotonic went backwards: {} -> {}\n", a, b);
        return 1;
    }
    if b == a {
        print("monotonic never advanced\n");
        return 1;
    }

    print("std.time ok\n");
    return 0;
}