node-red-contrib-emberplus
Version:
Interface to Ember+ automation standard
120 lines (111 loc) • 7.55 kB
JavaScript
const { EmberClient, EmberLib } = require('node-emberplus');
const util = require('util');
const { emit } = require('process');
module.exports = function (RED) {
function EmberPlusServerNode(n) {
var statusCallbacks = [];
RED.nodes.createNode(this, n);
this.host = n.host;
this.port = n.port;
this.name = n.name;
var node = this;
node.shutdown = false;
//Send a message to the subscribed nodes (appears on the flow)
node.sendStatus = function (colour, message, extraInformation = "") {
for (var i = 0; i < statusCallbacks.length; i++) {
statusCallbacks[i](colour, message, extraInformation);
}
}
//Callback definitions
node.addStatusCallback = function (func) { statusCallbacks.push(func); }
//Send out a error
function sendError(errorNode, errorMessage) {
if (lastSentError !== errorNode + ":" + errorMessage) {
lastSentError = errorNode + ":" + errorMessage;
node.sendStatus("red", errorNode, errorMessage);
}
}
function reconnect(host, port) {
if (node.client) {
delete node.client;
}
var client = new EmberClient(node.host, node.port);
node.client = client;
client.on("error", function (e) {
node.sendStatus("red", "Error", e)
});
client.on("connecting", function () {
node.sendStatus("yellow", "Connecting");
});
client.on("connected", function () {
node.sendStatus("green", "Connected");
var paths = [];
client.getDirectory()
.then(() => client.expand(client.root.getElementByNumber(0)))
.then(() => client.root.elements.forEach(function (v1, k1) {
if (typeof v1.elements === "object") {
v1.elements.forEach(function (v2, k2) {
if (typeof v2.elements === "object") {
v2.elements.forEach(function (v3, k3) {
if (typeof v3.elements === "object") {
v3.elements.forEach(function (v4, k4) {
if (typeof v4.elements === "object") {
v4.elements.forEach(function (v5, k5) {
paths.push({ "path": v5.path, "id": v5.path + ":/" + v5.contents.identifier + "->" + (v5.contents.description ? v5.contents.description : v5.contents.value) });
});
} else {
paths.push({ "path": v4.path, "id": v4.path + ":/" + v1.contents.identifier + "/" + v2.contents.identifier + "/" + v3.contents.identifier + "/" + v4.contents.identifier + " (" + (v3.contents.description ? v3.contents.description : v3.contents.value) + ")" });
}
});
} else {
paths.push({ "path": v3.path, "id": v3.path + ":/" + v1.contents.identifier + "/" + v2.contents.identifier + "/" + v3.contents.identifier + " (" + (v3.contents.description ? v3.contents.description : v3.contents.value) + ")" });
}
});
} else {
paths.push({ "path": v2.path, "id": v2.path + ":/" + v1.contents.identifier + "/" + v2.contents.identifier + " (" + (v2.contents.description ? v2.contents.description : v2.contents.value) + ")" });
}
});
}
})
)
.then(() => {
global.paths = paths; node.paths = paths;
node.sendStatus("green", "Connected");
node.emit("clientready", node.paths, client);
})
.catch((e) => {
console.log(e.stack);
})
});
client.on("disconnected", function () {
node.sendStatus("red", "Disconnected");
if (!node.shutdown) {
reconnect();
}
});
client.connect()
.catch((e) => {
console.log(e.stack);
});
}
//On redeploy
node.on("close", function () {
node.shutdown = true;
node.client.disconnect();
});
reconnect(node.host, node.port);
}
RED.httpAdmin.get('/emberplus/:node/paths', RED.auth.needsPermission('emberplus.read'), (req, res) => {
var node = RED.nodes.getNode(req.params.node);
if (node != null) {
if (node.paths.length) {
res.status(200).send(JSON.stringify(node.paths));
} else {
res.status(401).send(`401 Not found: no path data yet`);
}
} else {
res.status(401).send(`401 Invalid node id`);
}
});
RED.nodes.registerType("emberplus-server", EmberPlusServerNode);
}