heavy rework to support individual leds, pulse mode currently broken
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2 changed files with 148 additions and 145 deletions
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@ -1,19 +1,22 @@
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// requirements
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const logger = require('./logger');
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const config = require('../config.json');
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const util = require('util');
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// third party requirements
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const blinkstick = require('blinkstick');
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const hexcolor = require('hex-color-regex');
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// constants
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// const LEDS = [0, 1, 2, 3, 4, 5, 6, 7];
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const LEDS_ALL = 'index_all';
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const RANDOM = 'random';
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const ANIMATION_STATE_INPROGRESS = 1;
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const ANIMATION_STATE_FINISH = 0;
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// letiables
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// variables
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let led;
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let animation = {};
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const LEDS = new Map();
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function findBlinkstick() {
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return new Promise((resolve, reject) => {
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@ -25,21 +28,143 @@ function findBlinkstick() {
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});
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}
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// turn the blinkstick off
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function powerOff() {
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return new Promise((resolve, reject) => {
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findBlinkstick()
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.then((led) => {
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// light it up
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async function illuminate(blinkstickConfig) {
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led = await findBlinkstick();
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let indices = getIndices(blinkstickConfig);
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for (let index = 0; index < indices.length; index++) {
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try {
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await setLedState(indices[index], ANIMATION_STATE_INPROGRESS);
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await singleAnimation(JSON.parse(JSON.stringify(blinkstickConfig)), indices[index]);
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} catch (err) {
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logger.error(err);
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}
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}
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}
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// turn the blinkstick or specified led off
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async function powerOff(index) {
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led = await findBlinkstick();
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// check for NaN
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if (index !== index) {
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index = LEDS_ALL;
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}
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let config = {color: '#000000', mode: 'poweroff', options: {index: index}};
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let indices = getIndices(config);
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for (let index = 0; index < indices.length; index++) {
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try {
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await singleAnimation(JSON.parse(JSON.stringify(config)), indices[index]);
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} catch (err) {
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logger.error(err);
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}
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}
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if (index !== LEDS_ALL) {
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logger.info('led \'' + index + '\' powered off');
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return;
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}
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led.stop();
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led.turnOff();
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logger.info('blinkstick powered off');
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resolve();
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})
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.catch(reject);
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})
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}
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// parse a color object from given request arguments
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// animations
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function singleAnimation(config, index) {
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return new Promise((resolve, reject) => {
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config.options.index = index;
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logger.debug('changing color of led \'' + config.options.index + '\' to \'' + config.color + '\' (mode: ' + config.mode + ')...');
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switch (config.mode) {
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case 'morph':
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led.morph(config.color, config.options, callback);
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break;
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case 'pulse':
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led.pulse(config.color, config.options, callback);
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break;
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default:
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led.setColor(config.color, config.options, callback);
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}
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function callback(err) {
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clearLedState(config.options.index);
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if (err) {
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reject('changing color of led \'' + config.options.index + '\' to \'' + config.color + '\' encountered an error > ' + err);
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}
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logger.debug('changed color of led \'' + config.options.index + '\' to \'' + config.color + '\' (mode: ' + config.mode + ')');
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resolve();
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}
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});
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}
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// start pulsing
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function startPulsing(blinkstickConfig) {
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return new Promise((resolve, reject) => {
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let animation = getAnimation(blinkstickConfig);
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if (animation?.state === ANIMATION_STATE_FINISH || (blinkstickConfig.options.pulse.max > 0 && animation.done === blinkstickConfig.options.pulse.max)) {
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clearAnimationProperties(blinkstickConfig);
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return resolve('finished pulsing \'' + blinkstickConfig.color + '\'');
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}
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let currentAnimation = getAnimationByIndex(blinkstickConfig?.options?.index);
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if (currentAnimation !== undefined && currentAnimation.id !== blinkstickConfig.id) {
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stopAnimation(currentAnimation)
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.then(logger.info)
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.then(() => {
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startPulsing(blinkstickConfig, resolve, reject)
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})
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.catch(logger.error);
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return;
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}
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animation = setAnimationProperties(blinkstickConfig);
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led.pulse(blinkstickConfig.color, blinkstickConfig.options, (err) => {
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if (err) {
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clearAnimationProperties(blinkstickConfig);
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return reject('error pulsing ' + msg + ' > ' + err);
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}
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animation.done++;
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logger.debug('pulsed ' + msg + ' ' + animation.done + '/' + blinkstickConfig.options.pulse.max + ' times');
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startPulsing(blinkstickConfig)
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.catch(reject);
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});
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});
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}
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// led / index helper functions
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function getIndices(blinkstickConfig) {
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if (blinkstickConfig.options.index === LEDS_ALL) {
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return [0, 1, 2, 3, 4, 5, 6, 7];
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}
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return [blinkstickConfig.options.index];
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}
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async function setLedState(index, state) {
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await stopLedAnimation(index);
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LEDS.set(index, state);
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}
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function clearLedState(index) {
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LEDS.delete(index);
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}
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function isLedAnimated(index) {
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return (LEDS.get(index) || LEDS.get(LEDS_ALL)) !== undefined;
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}
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function stopLedAnimation(index) {
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return new Promise((resolve, reject) => {
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waitForAnimationEnd(index, () => {
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resolve();
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});
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});
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}
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function waitForAnimationEnd(index, callback) {
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if (!isLedAnimated(index)) {
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return callback();
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}
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setTimeout(() => {
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waitForAnimationEnd(index, callback);
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}, 100);
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}
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// color / parser functions
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function parseColor(value) {
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if (!value || value === RANDOM) {
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return RANDOM;
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@ -54,7 +179,6 @@ function parseColor(value) {
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}();
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}
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// parse rgb color values
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function parseRGBColor(value) {
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if (value.indexOf(',') === -1 && isRGBValue(value)) {
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return convertRGBToHex(parseInt(value) || 0, 0, 0);
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@ -77,17 +201,14 @@ function parseRGBColor(value) {
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}
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}
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// check a single rgb value
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function isRGBValue(value) {
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return value !== undefined && !isNaN(value) && value >= 0 && value <= 255;
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}
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// convert rgb to hex color values
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function convertRGBToHex(red, green, blue) {
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return '#' + ((1 << 24) + (red << 16) + (green << 8) + blue).toString(16).slice(1);
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}
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// parse hex color values
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function parseHexColor(value) {
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if (value[0] !== '#') {
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value = '#' + value;
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@ -100,131 +221,10 @@ function parseHexColor(value) {
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}
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}
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// pass the options to the blinkstick accordingly
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function illuminate(blinkstickConfig) {
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return new Promise((resolve, reject) => {
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findBlinkstick()
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.then(() => {
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switch (blinkstickConfig.mode) {
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case 'morph':
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morph(blinkstickConfig, resolve, reject);
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break;
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case 'pulse':
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startPulsing(blinkstickConfig, resolve, reject);
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break;
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default:
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setColor(blinkstickConfig, resolve, reject);
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break;
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}
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})
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.catch(reject);
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});
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}
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// set a static color
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function setColor(blinkstickConfig, resolve, reject) {
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stopAnimation()
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.then(() => {
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setAnimationProperties(blinkstickConfig);
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logger.debug('setting color to \'' + blinkstickConfig.color + '\'...');
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led.setColor(blinkstickConfig.color, blinkstickConfig.options, (err) => {
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clearAnimationProperties();
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if (err) {
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return reject('error setting color \'' + blinkstickConfig.color + '\' (' + err + ')');
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}
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return resolve('set color to \'' + blinkstickConfig.color + '\'');
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});
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});
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}
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// morph to a color
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function morph(blinkstickConfig, resolve, reject) {
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stopAnimation()
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.then(() => {
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setAnimationProperties(blinkstickConfig);
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logger.debug('morphing color to \'' + blinkstickConfig.color + '\'...');
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led.morph(blinkstickConfig.color, blinkstickConfig.options, (err) => {
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clearAnimationProperties();
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if (err) {
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return reject('error morphing color to \'' + blinkstickConfig.color + '\' (' + err + ')');
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}
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return resolve('morphed color to \'' + blinkstickConfig.color + '\'');
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});
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});
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}
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// start pulsing
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function startPulsing(blinkstickConfig, resolve, reject) {
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if (animation.state === ANIMATION_STATE_FINISH || (blinkstickConfig.options.pulse.max > 0 && (blinkstickConfig.options.pulse.done && blinkstickConfig.options.pulse.done === blinkstickConfig.options.pulse.max))) {
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clearAnimationProperties();
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return resolve('finished pulsing color \'' + blinkstickConfig.color + '\'');
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}
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if (animation.id && animation.id !== blinkstickConfig.id) {
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stopAnimation()
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.then(logger.info)
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.then(function () {
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startPulsing(blinkstickConfig, resolve, reject)
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})
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.catch(logger.error);
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return;
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}
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setAnimationProperties(blinkstickConfig);
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led.pulse(blinkstickConfig.color, blinkstickConfig.options, (err) => {
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if (err) {
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clearAnimationProperties();
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return reject('error pulsing color \'' + blinkstickConfig.color + '\' (' + err + ')');
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}
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blinkstickConfig.options.pulse.done++;
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logger.debug('pulsed color \'' + blinkstickConfig.color + '\' ' + blinkstickConfig.options.pulse.done + '/' + blinkstickConfig.options.pulse.max + ' times');
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startPulsing(blinkstickConfig, resolve, reject);
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});
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}
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// set properties for the current animation
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function setAnimationProperties(blinkstickConfig) {
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if (animation.id === blinkstickConfig.id) {
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return;
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}
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led.animationsEnabled = true;
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animation.id = blinkstickConfig.id;
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animation.state = ANIMATION_STATE_INPROGRESS;
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}
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// clear properties for the current animation
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function clearAnimationProperties() {
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led.stop();
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animation = {};
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}
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// stop the current animation
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function stopAnimation() {
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return new Promise((resolve, reject) => {
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if (!isAnimationInProgress()) {
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return resolve();
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}
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animation.state = ANIMATION_STATE_FINISH;
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waitForAnimation(Date.now(), resolve, reject);
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});
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}
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// wait for current animation
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function waitForAnimation(timestamp, resolve, reject) {
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if (!isAnimationInProgress()) {
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return resolve();
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}
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setTimeout(() => {
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waitForAnimation(timestamp, resolve, reject);
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}, 100);
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}
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// is currently an animation in progress
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function isAnimationInProgress() {
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return animation !== undefined && animation.state !== undefined;
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}
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// exports
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module.exports = {
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parseColor,
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illuminate,
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powerOff
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powerOff,
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LEDS_ALL
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};
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@ -88,7 +88,7 @@ function handleRequests() {
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app.post('/off', (request, response) => {
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logger.http(request);
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response.end();
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blinkstick.powerOff();
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blinkstick.powerOff(parseInt(request.body.index));
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});
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// POST methods
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app.post('*', (request, response) => {
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@ -107,11 +107,11 @@ function parseRequest(data) {
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"mode": data.mode || config.api.post.mode.default,
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"color": blinkstick.parseColor(data.color),
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"options": {
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"index": blinkstick.LEDS_ALL,
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"steps": data.steps,
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"duration": data.duration || config.api.post.duration.default,
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"pulse": {
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"max": data.pulses || 0,
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"done": 0
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"max": data.pulses || 0
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}
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}
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};
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@ -126,6 +126,9 @@ function parseRequest(data) {
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if (blinkstickConfig.options.duration < 100) {
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blinkstickConfig.options.duration = 100;
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}
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if (blinkstickConfig.options.index === blinkstick.LEDS_ALL) {
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blinkstickConfig.options.duration = blinkstickConfig.options.duration / 8;
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}
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if (blinkstickConfig.options.steps === undefined || blinkstickConfig.options.steps === 0) {
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blinkstickConfig.options.steps = blinkstickConfig.options.duration / 10;
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}
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