/
main.js
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/
main.js
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/*
* Copyright (c) 2016-2021 Moddable Tech, Inc.
*
* This file is part of the Moddable SDK.
*
* This work is licensed under the
* Creative Commons Attribution 4.0 International License.
* To view a copy of this license, visit
* <http://creativecommons.org/licenses/by/4.0>
* or send a letter to Creative Commons, PO Box 1866,
* Mountain View, CA 94042, USA.
*
*/
import config from "mc/config";
import {Request} from "http"
import SecureSocket from "securesocket";
import parseBMF from "commodetto/parseBMF";
import parseRLE from "commodetto/parseRLE";
import Poco from "commodetto/Poco";
import Resource from "Resource";
import Timer from "timer";
import Flash from "flash";
let flash;
let render;
let black, white;
let OpenSans18, OpenSans35;
let arrow;
function getTimeEstimate() {
const API_KEY = config.API_KEY;
const HOME = config.HOME;
const WORK = config.WORK;
if (API_KEY == "API_KEY") {
trace("No API key\n");
return;
}
if (HOME == "HOME_ADDRESS") {
trace("Home address not configured\n");
return;
}
if (WORK == "WORK_ADDRESS") {
trace("Work address not configured\n");
return;
}
let request = new Request({
host: "maps.googleapis.com",
path: `/maps/api/directions/json?origin=${encodeURIComponent(HOME)}&destination=${encodeURIComponent(WORK)}&departure_time=now&mode=DRIVING&key=${API_KEY}`,
port: 443,
Socket: SecureSocket,
secure: {protocolVersion: 0x303}
});
request.callback = function(message, value, etc) {
if (Request.status === message) {
flash.offset = 0;
flash.erase(0);
}
else if (Request.responseFragment === message) {
const buffer = this.read(ArrayBuffer);
const byteLength = buffer.byteLength;
let start = Math.idiv(flash.offset, flash.blockSize);
const end = Math.idiv(flash.offset + byteLength, flash.blockSize);
while (start < end)
flash.erase(++start);
flash.write(flash.offset, buffer.byteLength, buffer);
flash.offset += buffer.byteLength;
}
else if (Request.responseComplete === message) {
let result = flash.readString(0, flash.offset);
result = JSON.parse(result, ["routes", "legs", "duration", "duration_in_traffic", "text", "value"]);
let route = result.routes[0];
if (!route) {
trace(`No route found\n`);
updateDisplay(null);
} else {
let leg = route.legs[0];
let duration = leg.duration.text;
let durationInTraffic = leg.duration_in_traffic.text;
let durationInTrafficValue = leg.duration_in_traffic.value;
updateDisplay([durationInTraffic, durationInTrafficValue, duration]);
}
}
}
}
function updateDisplay(time) {
let travelTime="", durationInTraffic="", traffic="";
if (time === null) {
travelTime = "No route found";
} else if (typeof time === "string") {
travelTime = time;
} else {
durationInTraffic = time[0];
let duration = time[2];
travelTime = durationInTraffic;
let diff = durationInTraffic/duration;
if (diff >= 1.4)
traffic = "Traffic is heavy";
else if (diff >= 1.25)
traffic = "Traffic is light";
else
traffic = "No traffic";
}
render.begin();
render.fillRectangle(white, 0, 0, render.width, render.height);
render.fillRectangle(black, 35, 10, 71, 29);
render.fillRectangle(black, 151, 10, 64, 29);
render.drawGray(arrow, black, 116, 14, 0, 0, 25, 22);
render.drawText("Home", OpenSans18, white, 45, 10);
render.drawText("Work", OpenSans18, white, 161, 10);
render.drawText(travelTime, OpenSans35, black, (render.width - render.getTextWidth(travelTime, OpenSans35)) >> 1, 40);
render.drawText(traffic, OpenSans18, black, (render.width - render.getTextWidth(traffic, OpenSans18)) >> 1, 88);
render.end();
}
export default function() {
flash = new Flash("storage");
render = new Poco(screen, { displayListLength: 2048, rotation: config.rotation });
black = render.makeColor(0, 0, 0);
white = render.makeColor(255, 255, 255);
OpenSans18 = parseBMF(new Resource("OpenSans-Regular-18.bf4"));
OpenSans35 = parseBMF(new Resource("OpenSans-Regular-35.bf4"));
arrow = parseRLE(new Resource("arrow-alpha.bm4"));
getTimeEstimate();
Timer.repeat(() => {
getTimeEstimate();
}, 1000*60*10);
}