// 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::signeds::PrimitiveSigned;
use malachite_base::num::basic::unsigneds::PrimitiveUnsigned;
use malachite_base::test_util::bench::{BenchmarkType, run_benchmark};
use malachite_base::test_util::generators::common::{GenConfig, GenMode};
use malachite_base::test_util::runner::Runner;
use malachite_nz::integer::Integer;
use malachite_nz::test_util::bench::bucketers::{
    pair_1_integer_bit_bucketer, pair_2_pair_1_integer_bit_bucketer,
};
use malachite_nz::test_util::generators::{
    integer_signed_pair_gen_var_1, integer_signed_pair_gen_var_1_rm,
    integer_unsigned_pair_gen_var_2, integer_unsigned_pair_gen_var_2_rm,
};
use std::ops::{Shl, ShlAssign};

pub(crate) fn register(runner: &mut Runner) {
    register_unsigned_demos!(runner, demo_integer_shl_assign_unsigned);
    register_signed_demos!(runner, demo_integer_shl_assign_signed);
    register_unsigned_demos!(runner, demo_integer_shl_unsigned);
    register_signed_demos!(runner, demo_integer_shl_signed);
    register_unsigned_demos!(runner, demo_integer_shl_unsigned_ref);
    register_signed_demos!(runner, demo_integer_shl_signed_ref);

    register_unsigned_benches!(runner, benchmark_integer_shl_assign_unsigned);
    register_signed_benches!(runner, benchmark_integer_shl_assign_signed);
    register_unsigned_benches!(runner, benchmark_integer_shl_unsigned_evaluation_strategy);
    register_signed_benches!(runner, benchmark_integer_shl_signed_evaluation_strategy);

    register_bench!(runner, benchmark_integer_shl_assign_u32_library_comparison);
    register_bench!(runner, benchmark_integer_shl_u32_library_comparison);
    register_bench!(runner, benchmark_integer_shl_assign_i32_library_comparison);
    register_bench!(runner, benchmark_integer_shl_i32_library_comparison);
}

fn demo_integer_shl_assign_unsigned<T: PrimitiveUnsigned>(
    gm: GenMode,
    config: &GenConfig,
    limit: usize,
) where
    Integer: ShlAssign<T>,
{
    for (mut n, u) in integer_unsigned_pair_gen_var_2::<T>()
        .get(gm, config)
        .take(limit)
    {
        let n_old = n.clone();
        n <<= u;
        println!("x := {n_old}; x <<= {u}; x = {n}");
    }
}

fn demo_integer_shl_assign_signed<T: PrimitiveSigned>(gm: GenMode, config: &GenConfig, limit: usize)
where
    Integer: ShlAssign<T>,
{
    for (mut n, i) in integer_signed_pair_gen_var_1::<T>()
        .get(gm, config)
        .take(limit)
    {
        let n_old = n.clone();
        n <<= i;
        println!("x := {n_old}; x <<= {i}; x = {n}");
    }
}

fn demo_integer_shl_unsigned<T: PrimitiveUnsigned>(gm: GenMode, config: &GenConfig, limit: usize)
where
    Integer: Shl<T, Output = Integer>,
{
    for (n, u) in integer_unsigned_pair_gen_var_2::<T>()
        .get(gm, config)
        .take(limit)
    {
        let n_old = n.clone();
        println!("{} << {} = {}", n_old, u, n << u);
    }
}

fn demo_integer_shl_signed<T: PrimitiveSigned>(gm: GenMode, config: &GenConfig, limit: usize)
where
    Integer: Shl<T, Output = Integer>,
{
    for (n, i) in integer_signed_pair_gen_var_1::<T>()
        .get(gm, config)
        .take(limit)
    {
        let n_old = n.clone();
        println!("{} << {} = {}", n_old, i, n << i);
    }
}

fn demo_integer_shl_unsigned_ref<T: PrimitiveUnsigned>(
    gm: GenMode,
    config: &GenConfig,
    limit: usize,
) where
    for<'a> &'a Integer: Shl<T, Output = Integer>,
{
    for (n, u) in integer_unsigned_pair_gen_var_2::<T>()
        .get(gm, config)
        .take(limit)
    {
        println!("&{} << {} = {}", n, u, &n << u);
    }
}

fn demo_integer_shl_signed_ref<T: PrimitiveSigned>(gm: GenMode, config: &GenConfig, limit: usize)
where
    for<'a> &'a Integer: Shl<T, Output = Integer>,
{
    for (n, i) in integer_signed_pair_gen_var_1::<T>()
        .get(gm, config)
        .take(limit)
    {
        println!("&{} << {} = {}", n, i, &n << i);
    }
}

fn benchmark_integer_shl_assign_unsigned<T: PrimitiveUnsigned>(
    gm: GenMode,
    config: &GenConfig,
    limit: usize,
    file_name: &str,
) where
    Integer: ShlAssign<T>,
{
    run_benchmark(
        &format!("Integer <<= {}", T::NAME),
        BenchmarkType::Single,
        integer_unsigned_pair_gen_var_2::<T>().get(gm, config),
        gm.name(),
        limit,
        file_name,
        &pair_1_integer_bit_bucketer("n"),
        &mut [("Malachite", &mut |(mut n, u)| n <<= u)],
    );
}

fn benchmark_integer_shl_assign_signed<T: PrimitiveSigned>(
    gm: GenMode,
    config: &GenConfig,
    limit: usize,
    file_name: &str,
) where
    Integer: ShlAssign<T>,
{
    run_benchmark(
        &format!("Integer <<= {}", T::NAME),
        BenchmarkType::Single,
        integer_signed_pair_gen_var_1::<T>().get(gm, config),
        gm.name(),
        limit,
        file_name,
        &pair_1_integer_bit_bucketer("n"),
        &mut [("Malachite", &mut |(mut n, i)| n <<= i)],
    );
}

#[allow(clippy::no_effect, unused_must_use)]
fn benchmark_integer_shl_unsigned_evaluation_strategy<T: PrimitiveUnsigned>(
    gm: GenMode,
    config: &GenConfig,
    limit: usize,
    file_name: &str,
) where
    Integer: Shl<T, Output = Integer>,
    for<'a> &'a Integer: Shl<T, Output = Integer>,
{
    run_benchmark(
        &format!("Integer << {}", T::NAME),
        BenchmarkType::EvaluationStrategy,
        integer_unsigned_pair_gen_var_2::<T>().get(gm, config),
        gm.name(),
        limit,
        file_name,
        &pair_1_integer_bit_bucketer("n"),
        &mut [
            (&format!("Integer << {}", T::NAME), &mut |(x, y)| {
                no_out!(x << y);
            }),
            (&format!("&Integer << {}", T::NAME), &mut |(x, y)| {
                no_out!(&x << y);
            }),
        ],
    );
}

#[allow(clippy::no_effect, unused_must_use)]
fn benchmark_integer_shl_signed_evaluation_strategy<T: PrimitiveSigned>(
    gm: GenMode,
    config: &GenConfig,
    limit: usize,
    file_name: &str,
) where
    Integer: Shl<T, Output = Integer>,
    for<'a> &'a Integer: Shl<T, Output = Integer>,
{
    run_benchmark(
        &format!("Integer << {}", T::NAME),
        BenchmarkType::EvaluationStrategy,
        integer_signed_pair_gen_var_1::<T>().get(gm, config),
        gm.name(),
        limit,
        file_name,
        &pair_1_integer_bit_bucketer("n"),
        &mut [
            (&format!("Integer << {}", T::NAME), &mut |(x, y)| {
                no_out!(x << y);
            }),
            (&format!("&Integer << {}", T::NAME), &mut |(x, y)| {
                no_out!(&x << y);
            }),
        ],
    );
}

fn benchmark_integer_shl_assign_u32_library_comparison(
    gm: GenMode,
    config: &GenConfig,
    limit: usize,
    file_name: &str,
) {
    run_benchmark(
        "Integer <<= u32",
        BenchmarkType::LibraryComparison,
        integer_unsigned_pair_gen_var_2_rm::<u32>().get(gm, config),
        gm.name(),
        limit,
        file_name,
        &pair_2_pair_1_integer_bit_bucketer("n"),
        &mut [
            ("Malachite", &mut |(_, (mut x, y))| x <<= y),
            ("rug", &mut |((mut x, y), _)| x <<= y),
        ],
    );
}

#[allow(clippy::no_effect, clippy::unnecessary_operation, unused_must_use)]
fn benchmark_integer_shl_u32_library_comparison(
    gm: GenMode,
    config: &GenConfig,
    limit: usize,
    file_name: &str,
) {
    run_benchmark(
        "Integer << u32",
        BenchmarkType::LibraryComparison,
        integer_unsigned_pair_gen_var_2_rm::<u32>().get(gm, config),
        gm.name(),
        limit,
        file_name,
        &pair_2_pair_1_integer_bit_bucketer("n"),
        &mut [
            ("Malachite", &mut |(_, (x, y))| no_out!(x << y)),
            ("rug", &mut |((x, y), _)| no_out!(x << y)),
        ],
    );
}

fn benchmark_integer_shl_assign_i32_library_comparison(
    gm: GenMode,
    config: &GenConfig,
    limit: usize,
    file_name: &str,
) {
    run_benchmark(
        "Integer <<= i32",
        BenchmarkType::LibraryComparison,
        integer_signed_pair_gen_var_1_rm::<i32>().get(gm, config),
        gm.name(),
        limit,
        file_name,
        &pair_2_pair_1_integer_bit_bucketer("n"),
        &mut [
            ("Malachite", &mut |(_, (mut x, y))| x <<= y),
            ("rug", &mut |((mut x, y), _)| x <<= y),
        ],
    );
}

#[allow(clippy::no_effect, clippy::unnecessary_operation, unused_must_use)]
fn benchmark_integer_shl_i32_library_comparison(
    gm: GenMode,
    config: &GenConfig,
    limit: usize,
    file_name: &str,
) {
    run_benchmark(
        "Integer << i32",
        BenchmarkType::LibraryComparison,
        integer_signed_pair_gen_var_1_rm::<i32>().get(gm, config),
        gm.name(),
        limit,
        file_name,
        &pair_2_pair_1_integer_bit_bucketer("n"),
        &mut [
            ("Malachite", &mut |(_, (x, y))| no_out!(x << y)),
            ("rug", &mut |((x, y), _)| no_out!(x << y)),
        ],
    );
}
