use crate::core::texture::{
    FloatTextureTrait, SpectrumTextureTrait, TextureEvalContext, TextureMapping2D,
};
use crate::spectra::{SampledSpectrum, SampledWavelengths};

#[derive(Debug, Clone)]
pub struct FloatBilerpTexture {
    mapping: TextureMapping2D,
    v00: Float,
    v01: Float,
    v10: Float,
    v11: Float,
}

impl FloatBilerpTexture {
    pub fn new(mapping: TextureMapping2D, v00: Float, v01: Float, v10: Float, v11: Float) -> Self {
        Self {
            mapping,
            v00,
            v01,
            v10,
            v11,
        }
    }

    pub fn create(
        render_from_texture: &Transform,
        params: &TextureParameterDictionary,
        loc: &FileLoc,
    ) -> Self {
        let mapping = TextureMapping2D::create(params, render_from_texture, loc);
        let v00 = params.get_one_float("v00", 0.);
        let v01 = params.get_one_float("v01", 1.);
        let v10 = params.get_one_float("v10", 0.);
        let v11 = params.get_one_float("v11", 1.);
        Self::new(mapping, v00, v01, v10, v11)
    }
}

impl FloatTextureTrait for FloatBilerpTexture {}

#[derive(Clone, Debug)]
pub struct SpectrumBilerpTexture;
impl SpectrumTextureTrait for SpectrumBilerpTexture {
    fn evaluate(&self, _ctx: &TextureEvalContext, _lambda: &SampledWavelengths) -> SampledSpectrum {
        todo!()
    }
}