Merge pull request #2 from JayWll/settings

Adding settings table with flags to control alerts
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JayWll 2020-04-13 11:07:23 -06:00 committed by GitHub
commit d3c7b7171a
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4 changed files with 61 additions and 4 deletions

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@ -17,6 +17,35 @@ app.get('/newreading', (req, res) => {
db.Readings.create({ timestamp: new Date(), reading: req.query.v });
res.status(200).send('Reading received: ' + req.query.v).end();
// Fetch all settings
db.Settings.findAll().then((result) => {
// Reset low moisture flag if it's set, and the reading is greater than high-trigger
if (result.find(o => o.dataValues.key === 'low').dataValues.value !== '0' && req.query.v >= parseInt(result.find(o => o.dataValues.key === 'high-trigger').dataValues.value)) {
// Update low to false
db.Settings.update({ value: false }, { where: { key: 'low' } })
// Update alert to false
db.Settings.update({ value: false }, { where: { key: 'alert' } })
}
// Set the low moisture flag if it's not set, and the value is less than low-trigger
if (result.find(o => o.dataValues.key === 'low').dataValues.value === '0' && req.query.v <= parseInt(result.find(o => o.dataValues.key === 'low-trigger').dataValues.value)) {
// Update low to true
db.Settings.update({ value: new Date().toISOString() }, { where: { key: 'low' } })
}
// If the low moisture flag is set but an alert has not yet been sent, determine if an alert is necessarry
if (result.find(o => o.dataValues.key === 'low').dataValues.value !== '0' && result.find(o => o.dataValues.key === 'alert').dataValues.value === '0') {
const lowtriggered = new Date().getTime() - new Date(result.find(o => o.dataValues.key === 'low').dataValues.value).getTime()
const fivedays = 5 * 24 * 60 * 60 * 1000
// If the first low reading was more than 5 days ago, send an alert
if (lowtriggered > fivedays) {
console.log('More than 5 days!') // NEED TO REPLACE THIS WITH ALERT BEING SENT
db.Settings.update({ value: new Date().toISOString() }, { where: { key: 'alert' } })
}
}
})
});
// Handle requests for /getdata by returning a JSON object of data for the relevant time period

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@ -1,4 +1,4 @@
const Sequelize = require('sequelize');
const Sequelize = require('sequelize')
const Op = Sequelize.Op
// Setup database, using credentials set in .env
@ -6,7 +6,7 @@ const sequelize = new Sequelize('database', process.env.DB_USER, process.env.DB_
dialect: 'sqlite',
logging: false,
storage: '.data/database.sqlite'
});
})
// Define 'readings' table structure
const Readings = sequelize.define('readings', {
@ -16,6 +16,17 @@ const Readings = sequelize.define('readings', {
reading: {
type: Sequelize.INTEGER
}
});
})
module.exports = {Op, Readings}
// Define 'settings' table structure
const Settings = sequelize.define('settings', {
key: {
type: Sequelize.STRING,
unique: true
},
value: {
type: Sequelize.STRING
}
})
module.exports = {Op, Readings, Settings}

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@ -19,6 +19,9 @@ request({
console.log(response.body.length + ' items retrieved')
// Sync the database table
await db.Settings.sync()
// Remove existing database items
await db.Readings.destroy({truncate: true})

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@ -0,0 +1,14 @@
const db = require('../db/db')
const path = require('path')
require('dotenv').config({path: path.join(__dirname, '../../.env')})
db.Settings.sync().then(() => {
// Remove all previous settings
db.Settings.destroy({truncate: true})
// Create settings
db.Settings.create({ key: 'low-trigger', value: 100 })
db.Settings.create({ key: 'high-trigger', value: 900 })
db.Settings.create({ key: 'low', value: false })
db.Settings.create({ key: 'alert', value: false })
})