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100-heatmiser.js
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module.exports = function(RED) {
"use strict";
var Heatmiser = require("heatmiser");
function HeatmiserInputNode(n) {
// TODO - holiday and hot water cases when confirmed working
var DEBUG = false;
RED.nodes.createNode(this,n);
this.ip = n.ip || "192.168.0.1";
this.pin = n.pin || "1234";
this.pollTime = n.pollTime*60*1000 || 30*60*1000;
this.pollIntervalRef = undefined;
var hmoutnode = this;
this.hm = new Heatmiser.Wifi(this.ip, this.pin);
this.hm.on('success', function(data) {
if (DEBUG) {
hmoutnode.log("Successfully wrote data. Response : " + JSON.stringify(data));
}
hmoutnode.send({topic: "", payload:JSON.stringify(data.dcb)});
});
this.hm.on('error', function(data) {
if (DEBUG) {
hmoutnode.log("Error during data setting : " + JSON.stringify(data));
}
hmoutnode.send(data);
});
this.read = function() {
if (hmoutnode.hm) {
hmoutnode.hm.read_device();
}
};
if (!this.currentStatus) {
this.read();
this.pollIntervalRef = setInterval(this.read, this.pollTime);
}
this.on("close", function() {
if (this.pollIntervalRef) {
clearInterval(this.pollIntervalRef);
this.pollIntervalRef = undefined;
}
});
this.on("input", function(message) {
// Valid inputs are heating:{target:, hold:}, read:, runmode:frost/heating, holiday:{enabled:, time:}, hotwater:{'on':1/0 / 'boost':1/0}
if (message.payload == "undefined" || !message.payload) {
message.payload = {read : true};
}
if (typeof(message.payload) == "string") {
message.payload = JSON.parse(message.payload);
}
if (message.payload.read) {
hmoutnode.read();
}
else if (message.payload) {
// Compare message.payload data to confirm valid and send to thermostat
var validInputs = ["heating", "runmode"];
for (var key in message.payload) {
if (message.payload.hasOwnProperty(key)) {
if (validInputs.indexOf(key) < 0) {
hmoutnode.log("Warning: Unsupported key ("+key+") passed!");
return;
}
}
}
hmoutnode.validateAndWrite(message);
}
});
}
RED.nodes.registerType("heatmiser-in",HeatmiserInputNode);
function HeatmiserOutputNode(n) {
// TODO - holiday and hot water cases when confirmed working
var DEBUG = false;
RED.nodes.createNode(this,n);
this.ip = n.ip || "192.168.0.1";
this.pin = n.pin || "1234";
this.multiWriteFunc = undefined;
var hminnode = this;
this.pollIntervalRef = undefined;
this.hm = new Heatmiser.Wifi(this.ip, this.pin);
this.hm.on('success', function(data) {
if (DEBUG) {
hminnode.log("Successfully wrote data. Response : " + JSON.stringify(data));
}
hminnode.currentStatus = data.dcb;
if (hminnode.multiWriteFunc) {
hminnode.multiWriteFunc();
hminnode.multiWriteFunc = undefined;
return;
}
hminnode.send({topic: "", payload:JSON.stringify(data.dcb)});
});
this.hm.on('error', function(data) {
if (DEBUG) {
hminnode.log("Error during data setting : " + JSON.stringify(data));
}
hminnode.send(data);
});
this.on("close", function() {
if (this.pollIntervalRef) {
clearInterval(this.pollIntervalRef);
this.pollIntervalRef = undefined;
}
});
this.read = function() {
if (hminnode.hm) {
hminnode.hm.read_device();
}
};
if (!this.currentStatus) {
this.read();
this.pollIntervalRef = setInterval(this.read, 30*60*1000);
}
this.write = function(dcb) {
if (hminnode.hm) {
hminnode.hm.write_device(dcb);
}
};
this.validateAndWrite = function(message) {
for (var key in message.payload) {
if (message.payload.hasOwnProperty(key)) {
// Ensure our valid keys contain valid values
switch (key) {
case "runmode" : {
if (DEBUG) {
hminnode.log("Hit the runmode case");
}
if (message.payload[key] !== "frost" && message.payload[key] !== "heating") {
hminnode.log("Warning: Unsupported 'runmode' value passed!");
return;
}
break;
}
//case "holiday" : {
//if (DEBUG) {
//hminnode.log("Hit the holiday case");
//}
//if (!('enabled' in message.payload[key]) && !('time' in message.payload[key])) {
//hminnode.log("Warning: Unsupported 'holiday' value passed!");
//eturn;
//}
//var time = message.payload[key].time;
//// Ensure hminnode time is a date
//if (typeof(time) == "string") {
//hminnode.log("Typeof time was " +typeof(message.payload[key].time));
//// message.payload[key].time = new Date(message.payload[key].time);
//message.payload[key].time = new Date(2014, 02, 15, 12, 0, 0);
//hminnode.log("Typeof time is now " +typeof(message.payload[key].time));
//}
//// Also add in away mode (for hot water) if we're on hols
//if (message.payload[key].time) {
//message.payload.away_mode = 1;
//}
//else {
//message.payload.away_mode = 0;
//}
//break;
// }
//case "hotwater" : {
//if (DEBUG) {
//hminnode.log("Hit the hotwater case");
//}
//if (message.payload[key] !== "on" && message.payload[key] !== "boost" && message.payload[key] !== "off") {
//hminnode.log("Warning: Unsupported 'hotwater' value passed!");
//return;
//}
//break;
// }
case "heating" : {
// Ensure heating stays last! It's got a multi write scenario
if (DEBUG) {
hminnode.log("Hit the heating case");
}
if (!('target' in message.payload[key]) && !('hold' in message.payload[key])) {
hminnode.log("Warning: Unsupported 'heating' value passed!");
return;
}
// Set sane temp and time ranges and sanitise to float/int
var target = parseFloat(message.payload[key].target);
var hold = parseInt(message.payload[key].hold);
if (target > 30.0) { message.payload[key].target = 30.0; }
else { message.payload[key].target = target; }
if (hold > 1440) { message.payload[key].hold = 1440; }
else { message.payload[key].hold = hold; }
if (target <= 10.0) { message.payload[key].target = 10.0; }
else { message.payload[key].target = target; }
if (hold <= 0) { message.payload[key].hold = 0; }
else { message.payload[key].hold = hold; }
// Ensure hminnode runmode == heating first
if (hminnode.currentStatus.run_mode === "frost_protection") {
// Use the multiWriteFunc as a callback in our success case
hminnode.multiWriteFunc = function() {
hminnode.write(message.payload);
}
hminnode.write({"runmode" : "heating"});
// End the flow here to ensure no double-writing
return;
}
break;
}
default : {
break;
}
}
// Valid set of key messages, construct DCB and write
var dcb = message.payload;
if (DEBUG) {
hminnode.log("Injecting " + JSON.stringify(dcb));
}
hminnode.write(dcb);
}
}
};
this.on("input", function(message) {
// Valid inputs are heating:{target:, hold:}, read:, runmode:frost/heating, holiday:{enabled:, time:}, hotwater:{'on':1/0 / 'boost':1/0}
if (message.payload) {
if (typeof(message.payload) === "string") {
message.payload = JSON.parse(message.payload);
}
// Compare message.payload data to confirm valid and send to thermostat
var validInputs = ["heating", "runmode"];
for (var key in message.payload) {
if (message.payload.hasOwnProperty(key)) {
if (validInputs.indexOf(key) < 0) {
hminnode.log("Warning: Unsupported key ("+key+") passed!");
return;
}
}
}
hminnode.validateAndWrite(message);
}
else {
hminnode.log("Warning: Invalid input passed!");
return;
}
});
}
RED.nodes.registerType("heatmiser-out",HeatmiserOutputNode);
}