homebridge-green-mountain-grills/lib/GrillStatus.js

A dynamic platform plugin for homebridge to provide access to your GMG WiFi smoker.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
class GrillStatus {
    constructor(bytes) {
        // eslint-disable-next-line no-undef
        const hex = Buffer.from(bytes).toString('hex');
        this.state = getGrillState(hex);
        this._hex = hex;
        this.isOn = this.state === 'on';
        this.currentGrillTemp = convertFtoC(getCurrentGrillTemp(hex));
        this.desiredGrillTemp = this.isOn ? convertFtoC(getDesiredGrillTemp(hex)) : 10;
        this.currentFoodTemp = convertFtoC(getCurrentFoodTemp(hex));
        this.desiredFoodTemp = this.isOn ? convertFtoC(getDesiredFoodTemp(hex)) : 10;
        this.fanModeActive = this.state === 'fan mode';
        this.lowPelletAlarmActive = getLowPelletAlarmActive(hex);
    }
}
const convertFtoC = (fahrenheit) => ((fahrenheit - 32) * 5 / 9);
const getRawValue = (hex, position) => {
    const value = hex.substr(position, 2);
    const parsed = parseInt(value, 16);
    return parsed;
};
const getGrillState = (hex) => {
    const statusCharacter = hex.charAt(61);
    const status = parseInt(statusCharacter, 10);
    if (status === 0) {
        return 'off';
    }
    else if (status === 1) {
        return 'on';
    }
    else if (status === 2) {
        return 'fan mode';
    }
    else {
        return 'unknown';
    }
};
const getCurrentGrillTemp = (hex) => {
    const first = getRawValue(hex, 4);
    const second = getRawValue(hex, 6);
    return first + (second * 256);
};
const getLowPelletAlarmActive = (hex) => {
    const first = getRawValue(hex, 48);
    const second = getRawValue(hex, 50);
    const value = first + (second * 256);
    return value === 128;
};
const getDesiredGrillTemp = (hex) => {
    const first = getRawValue(hex, 12);
    const second = getRawValue(hex, 14);
    return first + (second * 256);
};
const getCurrentFoodTemp = (hex) => {
    const first = getRawValue(hex, 8);
    const second = getRawValue(hex, 10);
    const currentFoodTemp = first + (second * 256);
    return currentFoodTemp >= 557 ? 0 : currentFoodTemp;
};
const getDesiredFoodTemp = (hex) => {
    const first = getRawValue(hex, 56);
    const second = getRawValue(hex, 58);
    return first + (second * 256);
};
exports.default = GrillStatus;
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