use serde::Deserialize;

use crate::{camera::Camera, vec3::Vec3};

#[derive(Deserialize)]
pub struct RawCamera {
    // output
    image_width: u32, 
    image_height: u32,

    // raytracing
    #[serde(default)]
    anti_alias_rate: u32,
    #[serde(default)]
    max_depth: u32,

    // camera
    #[serde(default)]
    fov: f32,
    #[serde(default)]
    look_from: Vec3,
    #[serde(default)]
    look_at: Vec3,
    #[serde(default)]
    vup: Vec3,
    #[serde(default)]
    defocus_angle: f32,
    #[serde(default)]
    focus_dist: f32,
}

impl Default for RawCamera {
    fn default() -> Self {
        Self {
            image_width: 400,
            image_height: 300,
            anti_alias_rate: 1,
            max_depth: 10,
            fov: 70.,
            look_from: Vec3::new(0., 0., 0.),
            look_at: Vec3::new(0., 0., -1.),
            vup: Vec3::new(0., 1., 0.),
            defocus_angle: 0.,
            focus_dist: 10.,
        }
    }
}

impl From<RawCamera> for Camera {
    fn from(raw: RawCamera) -> Self {
        Camera::new_full(
            raw.image_width,
            raw.image_height,
            raw.anti_alias_rate,
            raw.max_depth,
            raw.fov,
            raw.look_from,
            raw.look_at,
            raw.vup,
            raw.defocus_angle,
            raw.focus_dist,
        )
    }
}