use crate::object::{Value, parser::FromValue};
use glam::{Mat4, Quat, Vec3};

impl FromValue for Vec3 {
    fn from_value(v: Value) -> anyhow::Result<Self> {
        let mut fields = v.as_class("Vector3f").unwrap();
        Ok(Self {
            x: fields.field("x")?,
            y: fields.field("y")?,
            z: fields.field("z")?,
        })
    }
}

impl FromValue for Quat {
    fn from_value(v: Value) -> anyhow::Result<Self> {
        let mut fields = v.as_class("Quaternionf").unwrap();
        Ok(Self::from_array([
            fields.field("x")?,
            fields.field("y")?,
            fields.field("z")?,
            fields.field("w")?,
        ]))
    }
}

impl FromValue for Mat4 {
    fn from_value(v: Value) -> anyhow::Result<Self> {
        let mut fields = v.as_class("Matrix4x4f").unwrap();
        Ok(Self::from_cols_array_2d(&[
            [
                fields.field("e00")?,
                fields.field("e01")?,
                fields.field("e02")?,
                fields.field("e03")?,
            ],
            [
                fields.field("e10")?,
                fields.field("e11")?,
                fields.field("e12")?,
                fields.field("e13")?,
            ],
            [
                fields.field("e20")?,
                fields.field("e21")?,
                fields.field("e22")?,
                fields.field("e23")?,
            ],
            [
                fields.field("e30")?,
                fields.field("e31")?,
                fields.field("e32")?,
                fields.field("e33")?,
            ],
        ]))
    }
}