index.ts

// LEDをチカチカさせたい
var grove = require("jsupm_grove")
    , LEDBar = require("jsupm_my9221")
    , led = new grove.GroveLed(2)
    , bar = new LEDBar.GroveLEDBar(8, 9)
    , bar2 = new LEDBar.GroveLEDBar(6, 7);

var Songle = require("songle-api");

// トークンの情報を取ってくる
var settings = require("./settings");

// ビート情報と基本情報をもらってくる
var player = new Songle.Player({
    accessToken: settings.tokens.access
});
player.addPlugin(new Songle.Plugin.Beat());
player.addPlugin(new Songle.Plugin.Chorus());
player.addPlugin(new Songle.Plugin.SongleSync());

// 何かあったらコンソールに書き出す
player.on("play", (ev) => console.log("play"));
player.on("seek", (ev) => console.log("seek"));

// 曲が止まったらLED消灯
player.on("pause", (ev) => {
    console.log("pause");
    led.off();
    bar.setBarLevel(0);
    bar2.setBarLevel(0);
    on = false;
});

// 曲が止まったらLED消灯
player.on("finish", (ev) => {
    console.log("finish");
    led.off();
    bar.setBarLevel(0);
    bar2.setBarLevel(0);
    on = false;
});

// ビートごとにLED点滅
var on = false, inChorus = false;
player.on("chorusSectionLeave", (ev) => {
    inChorus = false;
});
player.on("chorusSectionEnter", (ev) => {
    inChorus = true;
});
player.on("beatEnter", (ev) => {
    console.log("beat:", ev.data.beat.position);
    if (on) led.off();
    else led.on();
    if (inChorus) {
        bar.setBarLevel(on ? 10 : 0);
        bar2.setBarLevel(on ? 10 : 0);
    } else {
        bar.setBarLevel(ev.data.beat.position * 10 / ev.data.beat.count, true);
        bar2.setBarLevel(ev.data.beat.position * 10 / ev.data.beat.count, false);
    }
    on = !on;
});

process.on('SIGTERM', function() {
    led.off();
    bar.setBarLevel(0);
    bar2.setBarLevel(0);
});