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use num_traits::Num;

use crate::Point;

// Type
pub type Point3D<N> = Point<N, 4>;

// Methods
impl<N: Copy + Num> Point3D<N> {
    /// Returns ref on x element of point
    ///
    /// ## Example
    /// ```
    /// use pythagore::point;
    ///
    /// assert_eq!(point!{ x: 1, y: 2, z: 3 }.x(), &1);
    /// ```
    #[inline]
    pub fn x(&self) -> &N {
        &self[0]
    }

    /// Returns mutable ref on x element of point
    ///
    /// ## Example
    /// ```
    /// use pythagore::point;
    ///
    /// let mut v = point!{ x: 1, y: 2, z: 3 };
    /// *v.x_mut() = 5;
    ///
    /// assert_eq!(v.x(), &5);
    /// ```
    #[inline]
    pub fn x_mut(&mut self) -> &mut N {
        &mut self[0]
    }

    /// Returns ref on y element of point
    ///
    /// ## Example
    /// ```
    /// use pythagore::point;
    ///
    /// assert_eq!(point!{ x: 1, y: 2, z: 3 }.y(), &2);
    /// ```
    #[inline]
    pub fn y(&self) -> &N {
        &self[1]
    }

    /// Returns mutable ref on y element of point
    ///
    /// ## Example
    /// ```
    /// use pythagore::point;
    ///
    /// let mut v = point!{ x: 1, y: 2, z: 3 };
    /// *v.y_mut() = 5;
    ///
    /// assert_eq!(v.y(), &5);
    /// ```
    #[inline]
    pub fn y_mut(&mut self) -> &mut N {
        &mut self[1]
    }

    /// Returns ref on z element of point
    ///
    /// ## Example
    /// ```
    /// use pythagore::point;
    ///
    /// assert_eq!(point!{ x: 1, y: 2, z: 3 }.z(), &3);
    /// ```
    #[inline]
    pub fn z(&self) -> &N {
        &self[2]
    }

    /// Returns mutable ref on z element of point
    ///
    /// ## Example
    /// ```
    /// use pythagore::point;
    ///
    /// let mut v = point!{ x: 1, y: 2, z: 3 };
    /// *v.z_mut() = 5;
    ///
    /// assert_eq!(v.z(), &5);
    /// ```
    #[inline]
    pub fn z_mut(&mut self) -> &mut N {
        &mut self[2]
    }
}