use aoc_2021_09::HeightMap;
use criterion::{criterion_group, criterion_main, BatchSize, BenchmarkId, Criterion};
use rand::{rngs::StdRng, SeedableRng};

fn run_benches(c: &mut Criterion) {
    let mut rng = StdRng::seed_from_u64(42);
    for size in [100].iter() {
        c.bench_with_input(BenchmarkId::new("part1", size), size, |b, &n| {
            b.iter_batched_ref(
                || HeightMap::gen(&mut rng, n),
                |map| map.part1(),
                BatchSize::SmallInput,
            )
        });

        c.bench_with_input(BenchmarkId::new("part2", size), size, |b, &n| {
            b.iter_batched_ref(
                || HeightMap::gen(&mut rng, n),
                |map| map.part2(),
                BatchSize::SmallInput,
            )
        });
    }
}

criterion_group!(
    name = benches;
    config = Criterion::default().sample_size(10);
    targets = run_benches
);
criterion_main!(benches);