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use std::ops;

pub(crate) type Scaling = [f32; 2];
pub(crate) type Translation = [f32; 2];

#[repr(C)]
#[derive(Debug, Clone, Copy, PartialEq)]
pub struct Point {
    pub x: f32,
    pub y: f32,
}

impl Point {
    pub fn to_array(&self) -> [f32; 2] {
        [self.x, self.y]
    }
}

impl<D: Into<Dimensions>> ops::Add<D> for Point {
    type Output = Self;

    fn add(self, other: D) -> Self {
        let other = other.into();
        Self {
            x: self.x + other.width,
            y: self.y + other.height,
        }
    }
}

impl<D: Into<Dimensions>> ops::Sub<D> for Point {
    type Output = Self;

    fn sub(self, other: D) -> Self {
        let other = other.into();
        Self {
            x: self.x - other.width,
            y: self.y - other.height,
        }
    }
}

impl ops::Mul<f32> for Point {
    type Output = Self;

    fn mul(self, other: f32) -> Self {
        Self {
            x: self.x * other,
            y: self.y * other,
        }
    }
}

impl ops::Div<f32> for Point {
    type Output = Self;

    fn div(self, other: f32) -> Self {
        Self {
            x: self.x / other,
            y: self.y / other,
        }
    }
}

impl From<[f32; 2]> for Point {
    fn from(d: [f32; 2]) -> Self {
        Self { x: d[0], y: d[1] }
    }
}

/// Dimensions of a rectangle
#[repr(C)]
#[derive(Debug, Clone, Copy, PartialEq)]
pub struct Dimensions {
    pub width: f32,
    pub height: f32,
}

impl<D: Into<Dimensions>> ops::Add<D> for Dimensions {
    type Output = Self;

    fn add(self, other: D) -> Self {
        let other = other.into();
        Self {
            width: self.width + other.width,
            height: self.height + other.height,
        }
    }
}

impl ops::Mul<f32> for Dimensions {
    type Output = Self;

    fn mul(self, other: f32) -> Self {
        Self {
            width: self.width * other,
            height: self.height * other,
        }
    }
}

impl<D: Into<Dimensions>> ops::Mul<D> for Dimensions {
    type Output = Self;

    fn mul(self, other: D) -> Self {
        let other = other.into();
        Self {
            width: self.width * other.width,
            height: self.height * other.height,
        }
    }
}

impl ops::Div<f32> for Dimensions {
    type Output = Self;

    fn div(self, other: f32) -> Self {
        Self {
            width: self.width / other,
            height: self.height / other,
        }
    }
}

impl<D: Into<Dimensions>> ops::Div<D> for Dimensions {
    type Output = Self;

    fn div(self, other: D) -> Self {
        let other = other.into();
        Self {
            width: self.width / other.width,
            height: self.height / other.height,
        }
    }
}

impl Dimensions {
    pub fn to_array(&self) -> [f32; 2] {
        [self.width, self.height]
    }
}

impl From<[f32; 2]> for Dimensions {
    fn from(d: [f32; 2]) -> Self {
        Self {
            width: d[0],
            height: d[1],
        }
    }
}

impl<D: Into<Dimensions>> ops::Sub<D> for Dimensions {
    type Output = Self;

    fn sub(self, other: D) -> Self {
        let other = other.into();
        Self {
            width: self.width - other.width,
            height: self.height - other.height,
        }
    }
}