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legohub.js
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legohub.js
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const koa = require("koa");
const router = require("koa-router");
const websockify = require('koa-websocket');
const json = require("koa-json");
const bodyParser = require("koa-bodyparser");
const PoweredUP = require("node-poweredup");
const app = new koa();
const http = router();
const ws = router();
const poweredUP = new PoweredUP.PoweredUP();
const socket = websockify(app);
app.use(json());
app.use(bodyParser());
var sLog="";
const COLORS = {
off: 0,
pink: 1,
purple: 2,
blue: 3,
"light-blue": 4,
cyan: 5,
green: 6,
yellow: 7,
orange: 8,
red: 9,
white: 10
};
const HUBTYPES = {
0: "Unknown",
1: "WeDo2 Smart Hub",
2: "Boost Move Hub",
3: "Powered Up Hub",
4: "Powered Up Remote",
5: "Duplo Train Hub"
};
const DEVICETYPES = {
0: "Unknown",
1: "Basic Motor",
2: "Train Motor",
8: "Led Lights",
22: "Boost Led",
34: "WeDo2 Tilt",
35: "WeDo2 Distance",
37: "Boost Distance",
38: "Boost Tacho Motor",
39: "Boost Move Hub Motor",
40: "Boost Tilt",
41: "Duplo Train Base Motor",
42: "Duplo Train Base Speaker",
43: "Duplo Train Base Color",
44: "Duplo Train Base Speedmeter",
55: "Powered Up Remote Button"
};
const PORTS = ["A", "B"];
poweredUP.scan();
console.log("Looking for Hubs...");
sLog += "Looking for Hubs...\n";
poweredUP.on("discover", async (hub) => {
await hub.connect();
console.log(`Connected to ${hub.name} (${hub.uuid})`);
sLog += `Connected to ${hub.name} (${hub.uuid})\n`;
if (hub.name=="Gianluca"){
hub.setLEDColor(9);
}
hub.on("disconnect", () => {
console.log(`Hub ${hub.name} (${hub.uuid}) disconnected`);
sLog += `Hub ${hub.name} (${hub.uuid}) disconnected\n`;
})
});
//mostra il log su browser
http.get("/log/", showlog);
async function showlog(ctx) {
ctx.body = sLog;
await ctx;
}
//---------------------------------
//chiude il processo, scollegando tutti gli hub
http.get("/exit/", exitapp);
async function exitapp(ctx) {
ctx.body = "Shutdown app...";
await ctx;
setTimeout(shutdownapp,2000);
}
function shutdownapp(){
console.log("Shutdown from user!");
process.exit(0);
}
//---------------------------------
http.get("/hubs/", hubs);
function hubInfo(hub) {
const { uuid, batteryLevel, firmwareVersion, current, name, rssi } = hub;
const hubTypeId = hub.getHubType();
const hubType = { name: HUBTYPES[hubTypeId], id: hubTypeId };
let ports = [];
if (hubTypeId != 4) {
PORTS.forEach(port => {
const deviceType = hub.getPortDeviceType(port);
ports.push({ port: port, name: DEVICETYPES[deviceType], id: deviceType });
});
}
const data = {
uuid,
batteryLevel,
firmwareVersion,
current,
name,
rssi,
hubType,
ports
};
return data;
}
async function hubs(ctx) {
const connectedHubs = poweredUP.getConnectedHubs();
let hubs = [];
connectedHubs.forEach(hub => {
hubs.push(hubInfo(hub));
});
ctx.body = { hubs: hubs };
await ctx;
}
http.get("/hubs/:uuid/", hub);
async function hub(ctx) {
const { uuid } = ctx.params;
const { name } = ctx.query;
hub = poweredUP.getConnectedHubByUUID(uuid);
ctx.assert(hub, 404, "Hub is not connected!");
if (name) {
hub.setName(name);
}
ctx.body = hubInfo(hub);
await ctx;
}
http.get("/hubs/:uuid/disconnect", hubDisconnect);
async function hubDisconnect(ctx) {
const { uuid } = ctx.params;
hub = poweredUP.getConnectedHubByUUID(uuid);
ctx.assert(hub, 404, "Hub is not connected!");
hub.disconnect();
ctx.body = hubInfo(hub);
await ctx;
}
http.get("/hubs/:uuid/connect", hubConnect);
async function hubConnect(ctx) {
const { uuid } = ctx.params;
hub = poweredUP.getConnectedHubByUUID(uuid);
ctx.assert(hub, 404, "Hub is not connected!");
hub.connect();
ctx.body = hubInfo(hub);
await ctx;
}
http.get("/hubs/:uuid/shutdown", shutdown);
async function shutdown(ctx) {
const { uuid } = ctx.params;
hub = poweredUP.getConnectedHubByUUID(uuid);
ctx.assert(hub, 404, "Hub is not connected!");
hub.shutdown();
ctx.body = hubInfo(hub);
await ctx;
}
http.get("/hubs/:uuid/:port/speed/:speed", speedControl);
async function speedControl(ctx) {
const { uuid, port, speed } = ctx.params;
const { time } = ctx.query;
hub = poweredUP.getConnectedHubByUUID(uuid);
ctx.assert(hub, 404, "Hub is not connected!");
const deviceType = hub.getPortDeviceType(port);
ctx.assert(deviceType === 2, 422, "Motor not found on this port");
hub.setMotorSpeed(port, speed, parseInt(time));
ctx.body = { uuid, port, speed, time };
await ctx;
}
http.get("/hubs/:uuid/:port/rampspeed/:fromSpeed/:toSpeed/:time",
rampSpeedControl
);
async function rampSpeedControl(ctx) {
const { uuid, port, fromSpeed, toSpeed, time } = ctx.params;
hub = poweredUP.getConnectedHubByUUID(uuid);
ctx.assert(hub, 404, "Hub is not connected!");
const deviceType = hub.getPortDeviceType(port);
ctx.assert(deviceType === 2, 422, "Motor not found on this port");
hub.rampMotorSpeed(port, fromSpeed, toSpeed, parseInt(time));
ctx.body = { uuid, port, fromSpeed, toSpeed, time };
await ctx;
}
http.get("/hubs/:uuid/stop", motorStop);
async function motorStop(ctx) {
const { uuid } = ctx.params;
hub = poweredUP.getConnectedHubByUUID(uuid);
ctx.assert(hub, 404, "Hub is not connected!");
PORTS.forEach(port => {
const deviceType = hub.getPortDeviceType(port);
if (deviceType === 2) {
hub.brakeMotor(port);
}
});
ctx.body = { uuid};
await ctx;
}
http.get("/hubs/:uuid/:port/stop", motorStopPort);
async function motorStopPort(ctx) {
const { uuid, port } = ctx.params;
hub = poweredUP.getConnectedHubByUUID(uuid);
ctx.assert(hub, 404, "Hub is not connected!");
const deviceType = hub.getPortDeviceType(port);
ctx.assert(deviceType === 2, 422, "Motor not found on this port");
hub.hardStopMotor(port);
ctx.body = { uuid, port };
await ctx;
}
http.get("/hubs/:uuid/led/:color/", LEDcolorChange);
async function LEDcolorChange(ctx) {
const { uuid, color } = ctx.params;
const colorValue = COLORS[color];
ctx.assert(colorValue, 422, "Wrong color!");
hub = poweredUP.getConnectedHubByUUID(uuid);
ctx.assert(hub, 404, "Hub is not connected!");
hub.setLEDColor(colorValue);
ctx.body = { hub_uuid: uuid, color_value: colorValue };
await ctx;
}
//imposta il nome (senza spazi)
http.get("/hubs/:uuid/setname/:newname/", SetHubName);
async function SetHubName(ctx) {
const { uuid, newname } = ctx.params;
//const colorValue = COLORS[color];
//ctx.assert(colorValue, 422, "Wrong color!")
hub = poweredUP.getConnectedHubByUUID(uuid);
ctx.assert(hub, 404, "Hub is not connected!");
hub.setName(newname);
ctx.body = { hub_uuid: uuid, name_value: newname };
await ctx;
}
ws.get('/:uuid/sensor/color', async (ctx) => {
const { uuid } = ctx.params;
hub = poweredUP.getConnectedHubByUUID(uuid);
ctx.websocket.on('message', (message) => {
hub.on("color", async (port, color) => {
ctx.websocket.send(color);
});
});
});
ws.get('/:uuid/sensor/distance', async (ctx) => {
const { uuid } = ctx.params;
hub = poweredUP.getConnectedHubByUUID(uuid);
ctx.websocket.on('message', (message) => {
hub.on("distance", async (port, distance) => {
ctx.websocket.send(distance);
});
});
});
ws.get('/:uuid/sensor/color-distance', async (ctx) => {
const { uuid } = ctx.params;
hub = poweredUP.getConnectedHubByUUID(uuid);
ctx.websocket.on('message', (message) => {
hub.on("colorAndDistance", async (port, color, distance) => {
ctx.websocket.send(distance);
ctx.websocket.send(color);
});
});
});
//funzioni con pattern device/nome/comando
//funzione di supporto che Restituisce
//l'UIDD di un un Hub, partendo dal nome impostato
//dall'utente. Se non lo trova, restituisce stringa vuota
function GetUIDDFromName(sname) {
var uidd="";
console.log(sname);
const connectedHubs = poweredUP.getConnectedHubs();
connectedHubs.forEach(hub => {
if (hub.name==sname){
uidd=hub.uuid;
}
});
return uidd;
}
//Gestione motore
// http://localhost:3000/device/Gianluca/A/100 per impostare il motore sulla porta A al 100%
http.get("/device/:friendlyname/:port/speed/:speed", speedControlfname);
async function speedControlfname(ctx) {
const { friendlyname, port, speed } = ctx.params;
const { time } = ctx.query;
var uuid = GetUIDDFromName(friendlyname);
hub = poweredUP.getConnectedHubByUUID(uuid);
ctx.assert(hub, 404, "Hub is not connected!");
const deviceType = hub.getPortDeviceType(port);
ctx.assert(deviceType === 2, 422, "Motor not found on this port");
hub.setMotorSpeed(port, speed, parseInt(time));
ctx.body = { friendlyname, uuid, port, speed, time };
await ctx;
}
//gestione motore con rampa di partenza / discesa
http.get("/device/:friendlyname/:port/rampspeed/:fromSpeed/:toSpeed/:time",
rampSpeedControlfname
);
async function rampSpeedControlfname(ctx) {
const { friendlyname, port, fromSpeed, toSpeed, time } = ctx.params;
var uuid = GetUIDDFromName(friendlyname);
hub = poweredUP.getConnectedHubByUUID(uuid);
ctx.assert(hub, 404, "Hub is not connected!");
const deviceType = hub.getPortDeviceType(port);
ctx.assert(deviceType === 2, 422, "Motor not found on this port");
hub.rampMotorSpeed(port, fromSpeed, toSpeed, parseInt(time));
ctx.body = { uuid, port, fromSpeed, toSpeed, time };
await ctx;
}
//imposta il colore
http.get("/device/:friendlyname/led/:color/", LEDcolorChangefname);
async function LEDcolorChangefname(ctx) {
const { friendlyname, color } = ctx.params;
const colorValue = COLORS[color];
ctx.assert(colorValue, 422, "Wrong color!");
var uuid = GetUIDDFromName(friendlyname);
hub = poweredUP.getConnectedHubByUUID(uuid);
ctx.assert(hub, 404, "Hub is not connected!");
hub.setLEDColor(colorValue);
ctx.body = { device_name: friendlyname, hub_uuid: uuid, color_value: colorValue };
await ctx;
}
//spenge il dispositivo
http.get("/device/:friendlyname/shutdown", shutdownfname);
async function shutdownfname(ctx) {
const { friendlyname } = ctx.params;
var uuid = GetUIDDFromName(friendlyname);
hub = poweredUP.getConnectedHubByUUID(uuid);
ctx.assert(hub, 404, "Hub is not connected!");
hub.shutdown();
ctx.body = hubInfo(hub);
await ctx;
}
//restituisce le info dal mone
http.get("/device/:friendlyname/", hubfromname);
async function hubfromname(ctx) {
const connectedHubs = poweredUP.getConnectedHubs();
const { friendlyname } = ctx.params;
let hubs = [];
connectedHubs.forEach(hub => {
if (hub.name==friendlyname){
hubs.push(hubInfo(hub));
}
});
ctx.body = { hubs: hubs };
await ctx;
}
app.use(http.routes()).use(http.allowedMethods());
app.ws.use(ws.routes()).use(ws.allowedMethods());
app.listen(3000, () => console.log("Server started..."));