use crate::{RefTrait, Side};
#[cfg(feature = "bevy")]
use bevy::prelude::Component;
use serde::{Deserialize, Serialize};
use std::collections::HashMap;
#[derive(Serialize, Deserialize, Debug, Clone, Copy, PartialEq, Eq)]
#[serde(transparent)]
#[cfg_attr(feature = "bevy", derive(Component))]
pub struct Edge<T>([T; 2]);
impl<T: RefTrait> Edge<T> {
pub fn new(left: T, right: T) -> Self {
Self([left, right])
}
pub fn array(&self) -> [T; 2] {
self.0
}
pub fn array_mut(&mut self) -> &mut [T; 2] {
&mut self.0
}
pub fn left(&self) -> T {
self.0[0]
}
pub fn left_mut(&mut self) -> &mut T {
self.0.get_mut(0).unwrap()
}
pub fn right(&self) -> T {
self.0[1]
}
pub fn right_mut(&mut self) -> &mut T {
self.0.get_mut(1).unwrap()
}
pub fn start(&self) -> T {
self.left()
}
pub fn start_mut(&mut self) -> &mut T {
self.left_mut()
}
pub fn end(&self) -> T {
self.right()
}
pub fn end_mut(&mut self) -> &mut T {
self.right_mut()
}
pub fn side(&self, side: Side) -> T {
match side {
Side::Left => self.left(),
Side::Right => self.right(),
}
}
pub fn side_mut(&mut self, side: Side) -> &mut T {
match side {
Side::Left => self.left_mut(),
Side::Right => self.right_mut(),
}
}
pub fn with_side_of(mut self, side: Side, value: T) -> Self {
*self.side_mut(side) = value;
self
}
pub fn in_reverse(&self) -> Self {
Self([self.right(), self.left()])
}
pub fn is_reverse_of(&self, other: &Self) -> bool {
self.left() == other.right() && self.right() == other.left()
}
}
impl<T: RefTrait> From<[T; 2]> for Edge<T> {
fn from(array: [T; 2]) -> Self {
Self(array)
}
}
impl<T: RefTrait> Edge<T> {
pub fn convert<U: RefTrait>(&self, id_map: &HashMap<T, U>) -> Result<Edge<U>, T> {
Ok(Edge([
id_map.get(&self.left()).ok_or(self.left())?.clone(),
id_map.get(&self.right()).ok_or(self.right())?.clone(),
]))
}
}