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use crate::core::Prng;
use crate::extn::core::random::Random;
use crate::ffi::InterpreterExtractError;
use crate::{Artichoke, Error};

#[cfg_attr(docsrs, doc(cfg(feature = "core-random")))]
impl Prng for Artichoke {
    type Error = Error;
    type Prng = Random;

    fn prng(&self) -> Result<&Self::Prng, Self::Error> {
        let state = self.state.as_deref().ok_or_else(InterpreterExtractError::new)?;
        Ok(&state.prng)
    }

    fn prng_mut(&mut self) -> Result<&mut Self::Prng, Self::Error> {
        let state = self.state.as_deref_mut().ok_or_else(InterpreterExtractError::new)?;
        Ok(&mut state.prng)
    }
}