express: serve up the frontend js asset
Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
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3 changed files with 89 additions and 87 deletions
82
express/asset/frontend.js
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82
express/asset/frontend.js
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// Initialize session variables
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let sessionStartTime;
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let lastButtonClickTime;
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// Function to generate a random session ID
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function generateSessionId() {
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return Math.random().toString(36).substring(2, 15) + Math.random().toString(36).substring(2, 15);
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}
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// Function to fetch a random animal name from the server
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async function getRandomAnimal() {
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try {
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const response = await fetch('/getRandomAnimal');
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const data = await response.json();
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document.getElementById('animal-name').textContent = data.animalName;
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} catch (error) {
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console.error('Error fetching data:', error);
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}
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}
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// Function to set or retrieve the session ID cookie
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function getSessionId() {
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const sessionId = document.cookie.replace(/(?:(?:^|.*;\s*)sessionId\s*=\s*([^;]*).*$)|^.*$/, '$1');
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if (!sessionId) {
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const newSessionId = generateSessionId();
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document.cookie = `sessionId=${newSessionId}`;
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return newSessionId;
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}
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return sessionId;
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}
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// Function to set session start time
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function setSessionStartTime() {
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sessionStartTime = new Date();
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}
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// Function to calculate and display time difference
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function displayTimeDifference() {
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if (sessionStartTime && lastButtonClickTime) {
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const timeDifference = lastButtonClickTime - sessionStartTime;
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console.log(`Time since session start: ${timeDifference} milliseconds`);
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// You can display the time difference on the page as needed
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}
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}
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// Add click event listeners to the buttons
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document.getElementById('isCritterButton').addEventListener('click', () => {
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recordButtonClick('is critter', getSessionId());
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});
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document.getElementById('isNotCritterButton').addEventListener('click', () => {
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recordButtonClick('is not critter', getSessionId());
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});
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// Function to record button clicks on the server
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async function recordButtonClick(buttonName, sessionId) {
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try {
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const currentTime = new Date();
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if (lastButtonClickTime) {
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const timeDifference = currentTime - lastButtonClickTime;
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// Include the time difference in the POST request data
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await fetch('/recordButtonClick', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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},
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body: JSON.stringify({ buttonName, sessionId, timeDifference }),
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});
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}
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lastButtonClickTime = currentTime; // Record the timestamp of the button click
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displayTimeDifference(); // Calculate and display time difference
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getRandomAnimal(); // Load another random animal
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} catch (error) {
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console.error('Error recording button click:', error);
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}
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}
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// Initial random animal load and session start time
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getRandomAnimal();
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setSessionStartTime();
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@ -2,97 +2,15 @@
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Random Animal Generator</title>
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<title>Is this a Critter?</title>
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</head>
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<body>
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<h1>Random Animal Generator</h1>
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<p id="animal-name">Click a button to get a random animal:</p>
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<h1>Is this a Critter?</h1>
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<p id="animal-name">what about?:</p>
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<button id="isCritterButton">Is Critter</button>
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<button id="isNotCritterButton">Is <b>not</b> Critter</button>
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<script>
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// Initialize session variables
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let sessionStartTime;
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let lastButtonClickTime;
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// Function to generate a random session ID
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function generateSessionId() {
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return Math.random().toString(36).substring(2, 15) + Math.random().toString(36).substring(2, 15);
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}
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// Function to fetch a random animal name from the server
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async function getRandomAnimal() {
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try {
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const response = await fetch('/getRandomAnimal');
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const data = await response.json();
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document.getElementById('animal-name').textContent = data.animalName;
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} catch (error) {
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console.error('Error fetching data:', error);
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}
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}
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// Function to set or retrieve the session ID cookie
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function getSessionId() {
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const sessionId = document.cookie.replace(/(?:(?:^|.*;\s*)sessionId\s*=\s*([^;]*).*$)|^.*$/, '$1');
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if (!sessionId) {
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const newSessionId = generateSessionId();
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document.cookie = `sessionId=${newSessionId}`;
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return newSessionId;
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}
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return sessionId;
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}
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// Function to set session start time
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function setSessionStartTime() {
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sessionStartTime = new Date();
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}
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// Function to calculate and display time difference
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function displayTimeDifference() {
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if (sessionStartTime && lastButtonClickTime) {
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const timeDifference = lastButtonClickTime - sessionStartTime;
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console.log(`Time since session start: ${timeDifference} milliseconds`);
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// You can display the time difference on the page as needed
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}
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}
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// Add click event listeners to the buttons
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document.getElementById('isCritterButton').addEventListener('click', () => {
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recordButtonClick('is critter', getSessionId());
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});
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document.getElementById('isNotCritterButton').addEventListener('click', () => {
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recordButtonClick('is not critter', getSessionId());
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});
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// Function to record button clicks on the server
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async function recordButtonClick(buttonName, sessionId) {
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try {
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const currentTime = new Date();
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if (lastButtonClickTime) {
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const timeDifference = currentTime - lastButtonClickTime;
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// Include the time difference in the POST request data
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await fetch('/recordButtonClick', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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},
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body: JSON.stringify({ buttonName, sessionId, timeDifference }),
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});
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}
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lastButtonClickTime = currentTime; // Record the timestamp of the button click
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displayTimeDifference(); // Calculate and display time difference
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getRandomAnimal(); // Load another random animal
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} catch (error) {
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console.error('Error recording button click:', error);
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}
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}
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// Initial random animal load and session start time
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getRandomAnimal();
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setSessionStartTime();
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</script>
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<script src="/asset/frontend.js"></script>
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</body>
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</html>
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@ -18,7 +18,6 @@ const db = new sqlite3.Database('mydb.db', (err) => {
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timestamp DATETIME DEFAULT CURRENT_TIMESTAMP,
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time_difference INTEGER -- Add this column for time difference
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)
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`);
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}
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});
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@ -29,6 +28,9 @@ app.use(bodyParser.json());
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app.get('/', (req, res) => {
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res.sendFile(__dirname + '/index.html');
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});
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app.get('/asset/frontend.js', (req, res) => {
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res.sendFile(__dirname + '/asset/frontend.js');
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});
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// Route to get a random animal name
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app.get('/getRandomAnimal', async (req, res) => {
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