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- // generic card functions
- var imgRootPath = '/usr/bin/img';
- // general helper functions
- function zeroPad(num, places) {
- var zero = places - num.toString().length + 1;
- return Array(+(zero > 0 && zero)).join("0") + num;
- }
- // time&date functions
- function getEpochMillis() {
- return Date.now();
- }
- function generateDate() {
- var dt = new Date
- return {
- 'type': 'calendar',
- 'value': 'update',
- 'id': 0,
- 'date': {
- 'year' : dt.getFullYear(),
- 'month': dt.getMonth()+1,
- 'day': dt.getDate()
- }
- };
- }
- function getEpoch() {
- return Math.floor(getEpochMillis() / 1000);
- }
- function getCurrentHour() {
- var d = new Date();
- return d.getHours();
- }
- // path generating functions
- function generateImgPath(rootPath, imgName) {
- return rootPath + '/img_' + imgName + '.bin';
- }
- // functions generating card objects
- function generateNewCardObj(bgColor, responseTopic) {
- return {
- 'cmd': 'new_card',
- 'bg_color': bgColor, // TODO: change bgColor from hex to dec
- 'responseTopic': responseTopic,
- 'elements': []
- };
- }
- function generateUpdateCardObj(cardId) {
- return {
- 'cmd': 'update_card',
- 'id': cardId,
- 'elements': []
- };
- }
- function generateElement (id, type, value, posX, posY, alignment) {
- var obj = {
- 'id': id,
- 'type': type,
- 'value': value
- }
-
- if (typeof posX !== 'undefined' && typeof posY !== 'undefined') {
- var pos = {
- 'x': posX,
- 'y': posY
- };
- if (typeof alignment !== 'undefined' &&
- (alignment === 'left' || alignment === 'center' || alignment === 'right')
- ) {
- pos['align'] = alignment;
- }
- obj['position'] = pos;
- }
-
- return obj;
- }
- function generateElementCal (id, type, value, posX, posY, alignment) {
- var dt = new Date
- var obj = {
- 'id': id,
- 'type': type,
- 'size': value,
- 'date': {
- 'year' : dt.getFullYear(),
- 'month': dt.getMonth()+1,
- 'day': dt.getDate()
- }
- }
- if (typeof posX !== 'undefined' && typeof posY !== 'undefined') {
- var pos = {
- 'x': posX,
- 'y': posY
- };
- if (typeof alignment !== 'undefined' &&
- (alignment === 'left' || alignment === 'center' || alignment === 'right')
- ) {
- pos['align'] = alignment;
- }
- obj['position'] = pos;
- }
-
- return obj;
- }
- function generateTextElement (id, value, size, posX, posY, alignment){
- var obj = generateElement(id, 'text', value, posX, posY, alignment);
-
- if (size !== null){
- obj['size'] = size;
- }
-
- return obj;
- }
- function generateImageElement(id, value, posX, posY, alignment){
- return generateElement(id, 'image', value, posX, posY, alignment);
- }
- function generateElementUpdate(id, value) {
- return {
- 'id': id,
- 'value': value
- };
- }
- // message queue functions
- // code review: good to have this function since every card requires this action?
- function onRecvMessage(e) {
- if (typeof e.topic !== 'undefined' && typeof e.payload !== 'undefined' ) {
- var payloadObj = e.payload;
-
- if (typeof e.payload === 'string' || e.payload instanceof String) {
- print('recvMessage: payload is a string, converting...');
- // print('recvMessage: ' + e.payload);
- try {
- payloadObj = JSON.parse(e.payload);
- } catch(err) {
- print(err); // error in the above string (in this case, yes)!
- print('ERROR Could not parse payload')
- return null;
- }
- }
-
- if (e.topic === '/button' || e.topic === '/gesture') {
- onInput({
- source: e.topic.replace(/^\//, ''),
- payload: payloadObj
- });
- } else {
- onMessage({
- topic: e.topic,
- payload: payloadObj
- });
- }
-
- }
- }
- function handleCardResponseMessage (cardInfo, payload) {
- if (typeof payload === 'string' || payload instanceof String) {
- try {
- payload = JSON.parse(payload);
- } catch (e) {
- print(e); // error in the above string (in this case, yes)!
- print('ERROR Could not parse payload')
- return null;
- }
- }
- if (typeof payload.cardId !== 'undefined' && typeof payload.action !== 'undefined') {
- switch (payload.action) {
- case 'create':
- if (cardInfo.id < 0 &&
- typeof payload.attention !== 'undefined' &&
- payload.attention === cardInfo.responseTopic)
- {
- // assign the card it's id
- cardInfo.id = payload.cardId;
- print('Assigning card its id: ' + cardInfo.id);
- setCardNightlightColors(cardInfo.nightlight || 0);
- }
- break;
-
- case 'select':
- if (cardInfo.id === payload.cardId) {
- // this has become the active card
- print('Card has become active: ' + cardInfo.id);
- cardInfo.active = true;
- setCardNightlightColors(cardInfo.nightlight || 0);
- } else {
- // another card has become the active card
- cardInfo.active = false;
- print('A different card has become active');
- }
- break;
- case 'update':
- if (payload.success === false && payload.reason && payload.reason === 'invalid cardId') {
- cardInfo.invalid = true;
- print('Card identified as invalid');
- }
- break;
- default:
- break;
- }
- }
- return cardInfo;
- }
- function setCardNightlightColors(color) {
- if (Array.isArray(color)) {
- // color.forEach(function(element, id) {
- // //print('setting button ' + id + ' to ' + element);
- // setButton(id, element);
- // });
- var payload = {
- cmd: 'buttons',
- value: color
- }
- publish('/set', JSON.stringify(payload));
- } else {
- setNightLight(color);
- }
- }
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