use crate::real::Real;
use crate::vec::Vec3;

mod compound;
mod conductor;
mod mb_pgram;
mod mh_pgram;
pub use compound::{GenericMaterial, IsoConductorOr};
pub use conductor::{AnisomorphicConductor, IsomorphicConductor};
pub use mb_pgram::MBPgram;
pub use mh_pgram::{Ferroxcube3R1MH, MHPgram};


#[cfg(feature = "serde")]
use serde::{Serialize, Deserialize};

pub trait Material<R: Real>: Sized {
    fn conductivity(&self) -> Vec3<R> {
        Default::default()
    }
    /// returns the new M vector for this material
    fn move_b_vec(&self, m: Vec3<R>, _target_b: Vec3<R>) -> Vec3<R> {
        // XXX could return either 0, or `m`. they should be the same, but one might be more
        // optimizable than the other (untested).
        m
    }
}

/// Default, non-interesting Material.
/// has 0 conductivity (electrical and magnetic)
#[cfg_attr(feature = "serde", derive(Deserialize, Serialize))]
#[cfg_attr(feature = "fmt", derive(Debug))]
#[derive(Copy, Clone, Default, PartialEq)]
pub struct Vacuum;
impl<R: Real> Material<R> for Vacuum {}