#[derive(Debug)]
pub struct WhitePoint {
    pub red: f64,
    pub green: f64,
    pub blue: f64,
}

pub fn avg(temp: u32, ratio: f64) -> WhitePoint {
    const WPS: [WhitePoint; 20] = [
        WhitePoint {
            red: 1.00000000,
            green: 0.18172716,
            blue: 0.00000000,
        },
        WhitePoint {
            red: 1.00000000,
            green: 0.42322816,
            blue: 0.00000000,
        },
        WhitePoint {
            red: 1.00000000,
            green: 0.54360078,
            blue: 0.08679949,
        },
        WhitePoint {
            red: 1.00000000,
            green: 0.64373109,
            blue: 0.28819679,
        },
        WhitePoint {
            red: 1.00000000,
            green: 0.71976951,
            blue: 0.42860152,
        },
        WhitePoint {
            red: 1.00000000,
            green: 0.77987699,
            blue: 0.54642268,
        },
        WhitePoint {
            red: 1.00000000,
            green: 0.82854786,
            blue: 0.64816570,
        },
        WhitePoint {
            red: 1.00000000,
            green: 0.86860704,
            blue: 0.73688797,
        },
        WhitePoint {
            red: 1.00000000,
            green: 0.90198230,
            blue: 0.81465502,
        },
        WhitePoint {
            red: 1.00000000,
            green: 0.93853986,
            blue: 0.88130458,
        },
        WhitePoint {
            red: 1.00000000,
            green: 0.97107439,
            blue: 0.94305985,
        },
        WhitePoint {
            red: 1.00000000,
            green: 1.00000000,
            blue: 1.00000000,
        },
        WhitePoint {
            red: 0.95160805,
            green: 0.96983355,
            blue: 1.00000000,
        },
        WhitePoint {
            red: 0.91194747,
            green: 0.94470005,
            blue: 1.00000000,
        },
        WhitePoint {
            red: 0.87906581,
            green: 0.92357340,
            blue: 1.00000000,
        },
        WhitePoint {
            red: 0.85139976,
            green: 0.90559011,
            blue: 1.00000000,
        },
        WhitePoint {
            red: 0.82782969,
            green: 0.89011714,
            blue: 1.00000000,
        },
        WhitePoint {
            red: 0.80753191,
            green: 0.87667891,
            blue: 1.00000000,
        },
        WhitePoint {
            red: 0.78988728,
            green: 0.86491137,
            blue: 1.00000000,
        },
        WhitePoint {
            red: 0.77442176,
            green: 0.85453121,
            blue: 1.00000000,
        },
    ];

    WhitePoint {
        red: WPS[(temp / 500) as usize].red * (1f64 - ratio)
            + WPS[(temp / 500 + 1) as usize].red * ratio,
        green: WPS[(temp / 500) as usize].green * (1f64 - ratio)
            + WPS[(temp / 500 + 1) as usize].green * ratio,
        blue: WPS[(temp / 500) as usize].blue * (1f64 - ratio)
            + WPS[(temp / 500 + 1) as usize].blue * ratio,
    }
}