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use hacspec_lib::prelude::*;
use rand::{
    distributions::uniform::SampleBorrow, distributions::uniform::SampleUniform,
    distributions::Distribution, distributions::Standard, Fill, Rng,
};

/// Random public integer
pub fn random_public_integer<T>() -> T
where
    Standard: Distribution<T>,
{
    rand::thread_rng().gen()
}

/// Random public integer in range `[min, max)`
pub fn random_public_integer_range<U>(min: U, max: U) -> U
where
    U: SampleBorrow<U> + Sized + SampleUniform + PartialOrd,
{
    rand::thread_rng().gen_range(min..max)
}

/// Random public byte
pub fn random_public_byte() -> u8 {
    let random_byte = rand::thread_rng().gen::<u8>();
    random_byte
}

/// Random byte
pub fn random_byte() -> U8 {
    random_public_byte().into()
}

/// Random array
pub fn random_bytes<A: Default + Fill>() -> A {
    let mut out = A::default();
    rand::thread_rng().fill(&mut out);
    out
}

/// Random vector
pub fn random_byte_vec(len: usize) -> Vec<u8> {
    (0..len).map(|_| rand::random::<u8>()).collect()
}