// Copyright © 2026 Mikhail Hogrefe
//
// This file is part of Malachite.
//
// Malachite is free software: you can redistribute it and/or modify it under the terms of the GNU
// Lesser General Public License (LGPL) as published by the Free Software Foundation; either version
// 3 of the License, or (at your option) any later version. See <https://www.gnu.org/licenses/>.

use malachite_base::num::basic::unsigneds::PrimitiveUnsigned;
use malachite_base::test_util::bench::bucketers::triple_3_bucketer;
use malachite_base::test_util::bench::{BenchmarkType, run_benchmark};
use malachite_base::test_util::generators::common::{GenConfig, GenMode};
use malachite_base::test_util::generators::unsigned_triple_gen_var_16;
use malachite_base::test_util::runner::Runner;

pub(crate) fn register(runner: &mut Runner) {
    register_unsigned_demos!(runner, demo_mod_power_of_2_pow);
    register_unsigned_demos!(runner, demo_mod_power_of_2_pow_assign);
    register_unsigned_benches!(runner, benchmark_mod_power_of_2_pow);
    register_unsigned_benches!(runner, benchmark_mod_power_of_2_pow_assign);
}

fn demo_mod_power_of_2_pow<T: PrimitiveUnsigned>(gm: GenMode, config: &GenConfig, limit: usize) {
    for (x, exp, pow) in unsigned_triple_gen_var_16::<T, u64>()
        .get(gm, config)
        .take(limit)
    {
        println!(
            "{}.pow({}) ≡ {} mod 2^{}",
            x,
            exp,
            x.mod_power_of_2_pow(exp, pow),
            pow
        );
    }
}

fn demo_mod_power_of_2_pow_assign<T: PrimitiveUnsigned>(
    gm: GenMode,
    config: &GenConfig,
    limit: usize,
) {
    for (mut x, exp, pow) in unsigned_triple_gen_var_16::<T, u64>()
        .get(gm, config)
        .take(limit)
    {
        let old_x = x;
        x.mod_power_of_2_pow_assign(exp, pow);
        println!("x := {old_x}; x.mod_power_of_2_pow_assign({exp}, {pow}); x = {x}");
    }
}

fn benchmark_mod_power_of_2_pow<T: PrimitiveUnsigned>(
    gm: GenMode,
    config: &GenConfig,
    limit: usize,
    file_name: &str,
) {
    run_benchmark(
        &format!("{}.mod_power_of_2_pow(u64, u64)", T::NAME),
        BenchmarkType::Single,
        unsigned_triple_gen_var_16::<T, u64>().get(gm, config),
        gm.name(),
        limit,
        file_name,
        &triple_3_bucketer("pow"),
        &mut [("Malachite", &mut |(x, exp, pow)| {
            no_out!(x.mod_power_of_2_pow(exp, pow));
        })],
    );
}

fn benchmark_mod_power_of_2_pow_assign<T: PrimitiveUnsigned>(
    gm: GenMode,
    config: &GenConfig,
    limit: usize,
    file_name: &str,
) {
    run_benchmark(
        &format!("{}.mod_power_of_2_pow_assign({}, u64)", T::NAME, T::NAME),
        BenchmarkType::Single,
        unsigned_triple_gen_var_16::<T, u64>().get(gm, config),
        gm.name(),
        limit,
        file_name,
        &triple_3_bucketer("pow"),
        &mut [("Malachite", &mut |(mut x, exp, pow)| {
            x.mod_power_of_2_pow_assign(exp, pow);
        })],
    );
}
