use crate::rng::get_random_bytes;

use crate::{Uuid, Variant, Version};

impl Uuid {
    pub fn new_v4() -> Self {
        Uuid::new_random()
    }

    pub fn new_random() -> Self {
        let mut bytes = get_random_bytes();

        Uuid::set_variant(&mut bytes, Variant::Default);
        Uuid::set_version(&mut bytes, Version::Random);

        Uuid(bytes)
    }
}

#[cfg(test)]
mod tests {
    use crate::{Uuid, Variant, Version};

    #[test]
    fn test_new_v4_version() {
        let uuid = Uuid::new_v4();

        assert_eq!(uuid.get_version(), Version::Random);
    }

    #[test]
    fn test_new_v4_version_num() {
        let uuid = Uuid::new_v4();

        assert_eq!(uuid.get_version_num(), 4);
    }

    #[test]
    fn test_new_v4_variant() {
        let uuid = Uuid::new_v4();

        assert_eq!(uuid.get_variant(), Variant::Default);
    }
}