express: time and session ID

Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>

express/server.js

@@ -1,71 +1,82 @@
 const express = require('express');
-const fs = require('fs');
 const bodyParser = require('body-parser');
-const Redis = require('ioredis');
+const sqlite3 = require('sqlite3').verbose();
 const app = express();
 const port = 3000;
 
-// Create a Redis Client
-const redis = new Redis();
+// Create an SQLite database and initialize tables
+const db = new sqlite3.Database('mydb.db', (err) => {
+    if (err) {
+        console.error('Error opening SQLite database:', err.message);
+    } else {
+        console.log('Connected to SQLite database');
+        db.run(`
+            CREATE TABLE IF NOT EXISTS button_clicks (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                session_id TEXT,
+                button_name TEXT,
+                timestamp DATETIME DEFAULT CURRENT_TIMESTAMP,
+                time_difference INTEGER  -- Add this column for time difference
+            )
+
+        `);
+    }
+});
 
 app.use(bodyParser.json());
 
-var animals;
-// check and load animals into redis
-fs.readFile("./animals.json", function (err, data) {
-    if (err) {
-            throw err;
-     }
-    var jsondata = JSON.parse(data);
-    animals = jsondata.animals;
-    //await redis.set('animals', jsondata.animals, 'EX', 3000);
-   });
-
-
 // Serve the HTML file
 app.get('/', (req, res) => {
     res.sendFile(__dirname + '/index.html');
 });
 
 // Route to get a random animal name
-app.get('/getRandomAnimal', (req, res) => {
-    const randomAnimal = animals[Math.floor(Math.random() * animals.length)];
-    res.json({ animalName: randomAnimal });
-});
-
-// Route to record button clicks
-app.post('/recordButtonClick', (req, res) => {
-  try {
-    const { buttonName, sessionId } = req.body;
-
-    // Use a Redis hash to store button clicks associated with session IDs
-    await redis.hincrby('buttonClicks', `${sessionId}:${buttonName}`, 1);
-
-    res.sendStatus(200);
-
-    if (buttonClicks.hasOwnProperty(buttonName)) {
-        buttonClicks[buttonName]++;
-        res.sendStatus(200);
-    } else {
-        res.status(400).json({ error: 'Invalid button name' });
-    }
-  } catch  (error) {
-    console.error('Error recording button click:', error);
-    res.status(500).json({ error: 'Internal server error' });
-  }
-});
-
-
-// Route to show the current results
-app.get('/results', async (req, res) => {
+app.get('/getRandomAnimal', async (req, res) => {
     try {
-        // Get the current random animal from Redis
-        const randomAnimal = await redis.get('randomAnimal');
+        const animals = ['Dog', 'Cat', 'Elephant', 'Lion', 'Giraffe'];
+        const randomIndex = Math.floor(Math.random() * animals.length);
+        const randomAnimal = animals[randomIndex];
+        res.json({ animalName: randomAnimal });
+    } catch (error) {
+        console.error('Error fetching random animal:', error);
+        res.status(500).json({ error: 'Internal server error' });
+    }
+});
 
-        // Get the button click counts from the Redis hash
-        const buttonClicks = await redis.hgetall('buttonClicks');
+// Route to record button clicks along with session IDs in SQLite
+app.post('/recordButtonClick', (req, res) => {
+    try {
+        const { buttonName, sessionId } = req.body;
 
-        res.json({ randomAnimal, buttonClicks });
+        db.run('INSERT INTO button_clicks (session_id, button_name) VALUES (?, ?)', [sessionId, buttonName], (err) => {
+            if (err) {
+                console.error('Error recording button click:', err.message);
+                res.status(500).json({ error: 'Internal server error' });
+            } else {
+                res.sendStatus(200);
+            }
+        });
+    } catch (error) {
+        console.error('Error recording button click:', error);
+        res.status(500).json({ error: 'Internal server error' });
+    }
+});
+
+// Route to show the current results from SQLite
+app.get('/results', (req, res) => {
+    try {
+        db.all('SELECT button_name, COUNT(*) as count FROM button_clicks GROUP BY button_name', (err, rows) => {
+            if (err) {
+                console.error('Error fetching results:', err.message);
+                res.status(500).json({ error: 'Internal server error' });
+            } else {
+                const results = {};
+                rows.forEach((row) => {
+                    results[row.button_name] = row.count;
+                });
+                res.json(results);
+            }
+        });
     } catch (error) {
         console.error('Error fetching results:', error);
         res.status(500).json({ error: 'Internal server error' });