use ecs::Component;

use crate::matrix::Matrix;
use crate::vector::Vec3;

#[derive(Debug, Clone, Component)]
pub struct Transform
{
    position: Vec3<f32>,
    scale: Vec3<f32>,
}

impl Transform
{
    #[must_use]
    pub fn new() -> Self
    {
        Self {
            position: Vec3::default(),
            scale: Vec3 { x: 1.0, y: 1.0, z: 1.0 },
        }
    }

    #[must_use]
    pub fn position(&self) -> &Vec3<f32>
    {
        &self.position
    }

    pub fn set_position(&mut self, position: Vec3<f32>)
    {
        self.position = position;
    }

    pub fn set_scale(&mut self, scale: Vec3<f32>)
    {
        self.scale = scale;
    }

    pub(crate) fn as_matrix(&self) -> Matrix<f32, 4, 4>
    {
        let mut matrix = Matrix::new_identity();

        matrix.translate(&self.position);

        matrix.scale(&self.scale);

        matrix
    }
}

impl Default for Transform
{
    fn default() -> Self
    {
        Self::new()
    }
}