64 lines
1.5 KiB
JavaScript
64 lines
1.5 KiB
JavaScript
const { getLocation, getSensor } = require("../functions/dbFunctions");
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//class to generate random data
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var dataAray = [];
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class IoTdataGenerator {
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constructor() {
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}
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async getLocationAndSensorId() {
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try {
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const loc = await getLocation();
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const sen = await getSensor();
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return { loc, sen };
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} catch (err) {
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console.error(err);
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}
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}
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async generateData() {
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try {
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const { loc, sen } = await this.getLocationAndSensorId();
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const dataAray = []; // create a new array for each call
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for (let i = 0; i < sen.length; i++) {
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dataAray.push(firstDataRow(sen[i].id, loc[i].id));
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}
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return dataAray;
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} catch (err) {
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console.error(err);
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}
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}
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}
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//helper function to generate random data
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function firstDataRow(sensorId, locationId) {
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return {
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sensorid: sensorId,
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locationid: locationId,
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measurement: {
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psi: Math.floor(Math.random() * 30) + 5,
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humidity: Math.floor(Math.random() * (90 - 80 + 1) + 80),
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o3: Math.floor(Math.random() * (100 - 20 + 1) + 30),
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no2: Math.floor(Math.random() * 30) + 5,
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so2: Math.floor(Math.random() * 30) + 5,
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co: Math.floor(Math.random() * 25 - 0.5),
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temperature: Math.floor(Math.random() * (30 - 23 + 1) + 25),
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windspeed: Math.floor(Math.random() * (10 - 1 + 1) + 1),
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},
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//time stamp are auto generated by sequelize
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//createdAt: convertDateToUTC(startDate),
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};
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}
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/*
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1) get location and sensor id from db
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2) loop through each sensor id and location id and generate random data and pass to mqtt
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*/
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module.exports = { IoTdataGenerator };
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