//import { Bezier } from "./bezierjs/src/bezier.js";

function map (a, a_min, a_max, b_min, b_max) {
    return b_min + ((b_max - b_min) / (a_max - a_min)) * (a - a_min);
}

function fmt (x) {
    return x.toLocaleString("en-US", {
        minimumFractionDigits: 2,
        maximumFractionDigits: 2,
        useGrouping: false
    });
}

function duty_cycle_map (x) {
    //const out = Math.log10(x + 1) * 50;
    //const out = x;
    x = x / 100;
    //let y = 1 - Math.pow(1 - x, 5);
    //let y = x < 0.5 ? 4 * x * x * x : 1 - Math.pow(-2 * x + 2, 3) / 2;
    //let y =  Math.sqrt(1 - Math.pow(x - 1, 2));
    //let y = x < 0.5 ? 2 * x * x : 1 - Math.pow(-2 * x + 2, 2) / 2;
    let y = Math.sin((x * Math.PI) / 2);
    y = map(y, 0, 1, 47, 100);
    return y
}

function freq_map (x) {
    x = x / 100;
    //let y = 1 - (1 - x) * (1 - x);
    //let y = x === 1 ? 1 : 1 - Math.pow(2, -10 * x);
    let y;
    if (x < 0.05) {
        x = map(x, 0, 0.05, 0, 1); 
        y = -(Math.cos(Math.PI * x) - 1) / 2;
        y = map(y, 0, 1, 15000, 19000);
    } else if (x < 0.5) {
        x = map(x, 0, 0.5, 0, 1); 
        y = -(Math.cos(Math.PI * x) - 1) / 2;
        y = map(y, 0, 1, 20000, 50000);
    } else {
        y = 100000;
    }

    return y;
}

function generate_command() {
    return [...Array(100).keys()].map((x) => x + 1).map((x) => "D" + (x - 1) + " " + fmt(duty_cycle_map(x)) + " " + fmt(freq_map(x))).join("");
}

//console.log("M" + vals + "R");