// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

use rand::{
    distr::{uniform::SampleUniform, Distribution, StandardUniform},
    rng, RngExt,
};

pub fn random_bytes(n: usize) -> Vec<u8> {
    let mut result = vec![];
    let mut rng = rng();
    for _ in 0..n {
        result.push(rng.random_range(0..255));
    }
    result
}

pub fn random_bools(n: usize) -> Vec<bool> {
    let mut result = vec![];
    let mut rng = rng();
    for _ in 0..n {
        result.push(rng.random::<bool>());
    }
    result
}

pub fn random_numbers<T>(n: usize) -> Vec<T>
where
    StandardUniform: Distribution<T>,
{
    let mut rng = rng();
    StandardUniform.sample_iter(&mut rng).take(n).collect()
}

pub fn random_numbers_range<T>(n: usize, low: T, high: T, result: &mut Vec<T>)
where
    T: PartialOrd + SampleUniform + Copy,
{
    let mut rng = rng();
    for _ in 0..n {
        result.push(rng.random_range(low..high));
    }
}
