322 lines
10 KiB
JavaScript
322 lines
10 KiB
JavaScript
// server.js
|
||
require('dotenv').config();
|
||
const express = require('express');
|
||
const mysql = require('mysql2/promise');
|
||
const bodyParser = require('body-parser');
|
||
const path = require('path');
|
||
const axios = require('axios');
|
||
const { uploadTrendsCsv } = require('./s3');
|
||
|
||
const app = express();
|
||
const PORT = process.env.PORT || 3000;
|
||
|
||
// In-memory shift counters
|
||
const shiftCounters = {};
|
||
|
||
// Helpers
|
||
const pad2 = n => n.toString().padStart(2,'0');
|
||
|
||
function shortEST(date) {
|
||
const est = new Date(date.toLocaleString('en-US', { timeZone: 'America/New_York' }));
|
||
const M = est.getMonth()+1, D = est.getDate(), YY = String(est.getFullYear()).slice(-2);
|
||
const hh = pad2(est.getHours()), mm = pad2(est.getMinutes());
|
||
return `${M}/${D}/${YY} @${hh}:${mm}`;
|
||
}
|
||
|
||
function formatDateEST(date) {
|
||
const est = new Date(date.toLocaleString('en-US', { timeZone: 'America/New_York' }));
|
||
const y = est.getFullYear(), M = pad2(est.getMonth()+1), D = pad2(est.getDate());
|
||
const hh = pad2(est.getHours()), mm = pad2(est.getMinutes()), ss = pad2(est.getSeconds());
|
||
return `${y}-${M}-${D} ${hh}:${mm}:${ss}`;
|
||
}
|
||
|
||
function computeHeatIndex(T, R) {
|
||
const [c1,c2,c3,c4,c5,c6,c7,c8,c9] =
|
||
[-42.379,2.04901523,10.14333127,-0.22475541,
|
||
-0.00683783,-0.05481717,0.00122874,0.00085282,-0.00000199];
|
||
const HI = c1 + c2*T + c3*R + c4*T*R
|
||
+ c5*T*T + c6*R*R + c7*T*T*R
|
||
+ c8*T*R*R + c9*T*T*R*R;
|
||
return Math.round(HI*100)/100;
|
||
}
|
||
|
||
function getShiftInfo(now) {
|
||
const est = new Date(now.toLocaleString('en-US', { timeZone:'America/New_York' }));
|
||
const h = est.getHours(), m = est.getMinutes();
|
||
let shift, start = new Date(est);
|
||
|
||
if (h > 7 || (h === 7 && m >= 0)) {
|
||
if (h < 17 || (h === 17 && m < 30)) {
|
||
shift = 'Day';
|
||
start.setHours(7,0,0,0);
|
||
} else {
|
||
shift = 'Night';
|
||
start.setHours(17,30,0,0);
|
||
}
|
||
} else {
|
||
shift = 'Night';
|
||
start.setDate(start.getDate() - 1);
|
||
start.setHours(17,30,0,0);
|
||
}
|
||
|
||
const key = `${shift}-${start.toISOString().slice(0,10)}-${start.getHours()}${start.getMinutes()}`;
|
||
return { shift, start, key, estNow: est };
|
||
}
|
||
|
||
async function fetchCurrentWeather() {
|
||
const key = process.env.WEATHER_API_KEY;
|
||
const zip = process.env.ZIP_CODE;
|
||
if (!key || !zip) return 'Unavailable';
|
||
try {
|
||
const { data } = await axios.get('https://api.openweathermap.org/data/2.5/weather', {
|
||
params: { zip: `${zip},us`, appid: key, units: 'imperial' }
|
||
});
|
||
const desc = data.weather[0].description.replace(/^\w/, c => c.toUpperCase());
|
||
const hi = Math.round(data.main.temp_max);
|
||
const hum = data.main.humidity;
|
||
return `${desc}. Hi of ${hi}, Humidity ${hum}%`;
|
||
} catch (err) {
|
||
console.error('Weather API error:', err.message);
|
||
return 'Unavailable';
|
||
}
|
||
}
|
||
|
||
// MariaDB connection pool
|
||
const pool = mysql.createPool({
|
||
host: process.env.DB_HOST,
|
||
port: parseInt(process.env.DB_PORT,10) || 3306,
|
||
user: process.env.DB_USER,
|
||
password: process.env.DB_PASSWORD,
|
||
database: process.env.DB_NAME,
|
||
waitForConnections: true,
|
||
connectionLimit: 10,
|
||
queueLimit: 0,
|
||
connectTimeout: 10000
|
||
});
|
||
|
||
// Ensure readings table exists
|
||
(async () => {
|
||
const createSQL = `
|
||
CREATE TABLE IF NOT EXISTS readings (
|
||
id INT AUTO_INCREMENT PRIMARY KEY,
|
||
location VARCHAR(20) NOT NULL,
|
||
stationDockDoor VARCHAR(10) NOT NULL,
|
||
timestamp DATETIME NOT NULL,
|
||
temperature DOUBLE,
|
||
humidity DOUBLE,
|
||
heatIndex DOUBLE
|
||
);
|
||
`;
|
||
await pool.execute(createSQL);
|
||
})();
|
||
|
||
// Middleware & static files (serve heatmap.html at '/')
|
||
app.use(bodyParser.json());
|
||
const publicDir = path.join(__dirname, 'public');
|
||
app.use(express.static(publicDir, { index: 'heatmap.html' }));
|
||
|
||
// SSE setup
|
||
let clients = [];
|
||
app.get('/api/stream', (req, res) => {
|
||
res.set({
|
||
'Content-Type': 'text/event-stream',
|
||
'Cache-Control': 'no-cache',
|
||
Connection: 'keep-alive'
|
||
});
|
||
res.flushHeaders();
|
||
clients.push(res);
|
||
req.on('close', () => { clients = clients.filter(c => c !== res); });
|
||
});
|
||
function broadcast(event, data) {
|
||
const msg = `event: ${event}\ndata: ${JSON.stringify(data)}\n\n`;
|
||
clients.forEach(c => c.write(msg));
|
||
}
|
||
|
||
// Dual dock‐door readings endpoint
|
||
app.post('/api/readings', async (req, res) => {
|
||
try {
|
||
const { inbound = {}, outbound = {} } = req.body;
|
||
const { dockDoor: inD, temperature: inT, humidity: inH } = inbound;
|
||
const { dockDoor: outD, temperature: outT, humidity: outH } = outbound;
|
||
if ([inD, inT, inH, outD, outT, outH].some(v => v == null)) {
|
||
return res.status(400).json({ error: 'Missing fields' });
|
||
}
|
||
|
||
const hiIn = computeHeatIndex(inT, inH);
|
||
const hiOut = computeHeatIndex(outT, outH);
|
||
const now = new Date();
|
||
const { shift, key, estNow } = getShiftInfo(now);
|
||
shiftCounters[key] = (shiftCounters[key] || 0) + 1;
|
||
const period = shiftCounters[key];
|
||
|
||
const sqlTs = formatDateEST(estNow);
|
||
const shortTs = shortEST(estNow);
|
||
|
||
// Insert readings
|
||
const insertSQL = `
|
||
INSERT INTO readings(location,stationDockDoor,timestamp,temperature,humidity,heatIndex)
|
||
VALUES(?,?,?,?,?,?)
|
||
`;
|
||
await pool.execute(insertSQL, ['Inbound', String(inD), sqlTs, inT, inH, hiIn]);
|
||
await pool.execute(insertSQL, ['Outbound', String(outD), sqlTs, outT, outH, hiOut]);
|
||
|
||
// Broadcast SSE
|
||
broadcast('new-reading', {
|
||
location: 'Inbound',
|
||
stationDockDoor: String(inD),
|
||
timestamp: shortTs,
|
||
temperature: inT,
|
||
humidity: inH,
|
||
heatIndex: hiIn
|
||
});
|
||
broadcast('new-reading', {
|
||
location: 'Outbound',
|
||
stationDockDoor: String(outD),
|
||
timestamp: shortTs,
|
||
temperature: outT,
|
||
humidity: outH,
|
||
heatIndex: hiOut
|
||
});
|
||
|
||
// Upload CSV of today’s readings
|
||
const y = estNow.getFullYear(), m = pad2(estNow.getMonth()+1), d = pad2(estNow.getDate());
|
||
const dateKey = `${y}${m}${d}`;
|
||
const [rows] = await pool.execute(
|
||
`SELECT * FROM readings WHERE DATE(timestamp)=CURDATE() ORDER BY timestamp`
|
||
);
|
||
let csvUrl = null;
|
||
try { csvUrl = await uploadTrendsCsv(dateKey, rows); }
|
||
catch (e) { console.error('CSV upload error:', e); }
|
||
|
||
// Fetch weather
|
||
const weather = await fetchCurrentWeather();
|
||
|
||
// Build Slack message text
|
||
const text =
|
||
`*_${shift} shift Period ${period} dock/ trailer temperature checks for ${shortTs}_*\n` +
|
||
`*_Current Weather Forecast for Baltimore: ${weather}_*\n\n` +
|
||
`*_⬇️ Inbound Dock Door 🚛 :_* ${inD}\n` +
|
||
`*_Temp:_* ${inT} °F 🌡️\n` +
|
||
`*_Humidity:_* ${inH} % 💦\n` +
|
||
`*_Heat Index:_* ${hiIn} °F 🥵\n\n` +
|
||
`*_⬆️ Outbound Dock Door 🚛 :_* ${outD}\n` +
|
||
`*_Temp:_* ${outT} °F 🌡️\n` +
|
||
`*_Humidity:_* ${outH} % 💦\n` +
|
||
`*_Heat Index:_* ${hiOut} °F 🥵`;
|
||
|
||
// Trigger Slack workflow via Inputs map
|
||
await axios.post(
|
||
process.env.SLACK_WEBHOOK_URL,
|
||
{ inputs: { message: text } },
|
||
{ headers: { 'Content-Type': 'application/json' } }
|
||
);
|
||
|
||
res.json({ success: true, shift, period, csvUrl });
|
||
} catch (err) {
|
||
console.error('POST /api/readings error:', err);
|
||
res.status(500).json({ error: err.message });
|
||
}
|
||
});
|
||
|
||
// Area/Mod station readings endpoint
|
||
app.post('/api/area-readings', async (req, res) => {
|
||
try {
|
||
const { area, stationCode, temperature: T, humidity: H } = req.body;
|
||
if (!area || !stationCode || T == null || H == null) {
|
||
return res.status(400).json({ error: 'Missing fields' });
|
||
}
|
||
|
||
const hi = computeHeatIndex(T, H);
|
||
const now = new Date();
|
||
const { shift, estNow } = getShiftInfo(now);
|
||
|
||
const sqlTs = formatDateEST(estNow);
|
||
const shortTs = shortEST(estNow);
|
||
|
||
// Insert reading
|
||
const insertSQL = `
|
||
INSERT INTO readings(location,stationDockDoor,timestamp,temperature,humidity,heatIndex)
|
||
VALUES(?,?,?,?,?,?)
|
||
`;
|
||
await pool.execute(insertSQL, [area, stationCode, sqlTs, T, H, hi]);
|
||
|
||
// Broadcast SSE
|
||
broadcast('new-area-reading', {
|
||
location: area,
|
||
stationDockDoor: stationCode,
|
||
timestamp: shortTs,
|
||
temperature: T,
|
||
humidity: H,
|
||
heatIndex: hi
|
||
});
|
||
|
||
// Upload CSV
|
||
const y = estNow.getFullYear(), m = pad2(estNow.getMonth()+1), d = pad2(estNow.getDate());
|
||
const dateKey = `${y}${m}${d}`;
|
||
const [rows] = await pool.execute(
|
||
`SELECT * FROM readings WHERE DATE(timestamp)=CURDATE() ORDER BY timestamp`
|
||
);
|
||
let csvUrl = null;
|
||
try { csvUrl = await uploadTrendsCsv(dateKey, rows); }
|
||
catch (e) { console.error('CSV upload error:', e); }
|
||
|
||
// Fetch weather
|
||
const weather = await fetchCurrentWeather();
|
||
|
||
// Build Slack message text
|
||
const text =
|
||
`*_${shift} shift ${area} temp check for ${shortTs}_*\n` +
|
||
`*_Current Weather Forecast for Baltimore: ${weather}_*\n\n` +
|
||
`*_${area.toUpperCase()} station:_* ${stationCode}\n` +
|
||
`*_Temp:_* ${T} °F 🌡️\n` +
|
||
`*_Humidity:_* ${H} % 💦\n` +
|
||
`*_Heat Index:_* ${hi} °F 🥵`;
|
||
|
||
// Trigger Slack workflow via Inputs map
|
||
await axios.post(
|
||
process.env.SLACK_WEBHOOK_URL,
|
||
{ inputs: { message: text } },
|
||
{ headers: { 'Content-Type': 'application/json' } }
|
||
);
|
||
|
||
res.json({ success: true, csvUrl });
|
||
} catch (err) {
|
||
console.error('POST /api/area-readings error:', err);
|
||
res.status(500).json({ error: err.message });
|
||
}
|
||
});
|
||
|
||
// GET all readings
|
||
app.get('/api/readings', async (req, res) => {
|
||
try {
|
||
const [rows] = await pool.execute(`SELECT * FROM readings ORDER BY timestamp`);
|
||
res.json(rows);
|
||
} catch (err) {
|
||
console.error('GET /api/readings error:', err);
|
||
res.status(500).json({ error: err.message });
|
||
}
|
||
});
|
||
|
||
// Export CSV
|
||
app.get('/api/export', async (req, res) => {
|
||
try {
|
||
const [rows] = await pool.execute(`SELECT * FROM readings ORDER BY timestamp`);
|
||
res.setHeader('Content-disposition', 'attachment; filename=readings.csv');
|
||
res.set('Content-Type', 'text/csv');
|
||
res.write('id,location,stationDockDoor,timestamp,temperature,humidity,heatIndex\n');
|
||
rows.forEach(r => {
|
||
const ts = (r.timestamp instanceof Date) ? formatDateEST(r.timestamp) : r.timestamp;
|
||
res.write(`${r.id},${r.location},${r.stationDockDoor},${ts},${r.temperature},${r.humidity},${r.heatIndex}\n`);
|
||
});
|
||
res.end();
|
||
} catch (err) {
|
||
console.error('GET /api/export error:', err);
|
||
res.status(500).send(err.message);
|
||
}
|
||
});
|
||
|
||
// Start server
|
||
app.listen(PORT, () => {
|
||
console.log(`Server running on http://localhost:${PORT}`);
|
||
});
|