cubstart · drsc777 · Mar 21, 2025 · Mar 21, 2025 · Apr 4, 2025 · Apr 11, 2025
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "cors": "^2.8.5"
+  }
+}
diff --git a/week7/abby_li/history.html b/week7/abby_li/history.html
@@ -0,0 +1,99 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>Chat History</title>
+    <style>
+        body {
+            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
+            max-width: 800px;
+            margin: 0 auto;
+            padding: 20px;
+        }
+        h1 {
+            color: #333;
+            text-align: center;
+        }
+        .message {
+            padding: 10px 15px;
+            margin-bottom: 10px;
+            border-radius: 5px;
+            background-color: #f1f1f1;
+        }
+        .message-content {
+            font-size: 16px;
+            margin-bottom: 5px;
+        }
+        .message-time {
+            font-size: 12px;
+            color: #777;
+            text-align: right;
+        }
+        .back-link {
+            display: block;
+            text-align: center;
+            margin-top: 20px;
+            color: #0066cc;
+            text-decoration: none;
+        }
+        .back-link:hover {
+            text-decoration: underline;
+        }
+    </style>
+</head>
+<body>
+    <h1>Chat History</h1>
+    <div id="message-container"></div>
+    <a href="/" class="back-link">Back to Chat</a>
+
+    <script>
+        // Function to format the date
+        function formatDate(dateString) {
+            const date = new Date(dateString);
+            return date.toLocaleString();
+        }
+
+        // Fetch messages from the API
+        fetch('/messages')
+            .then(response => {
+                if (!response.ok) {
+                    throw new Error('Network response was not ok');
+                }
+                return response.json();
+            })
+            .then(messages => {
+                const container = document.getElementById('message-container');
+
+                if (messages.length === 0) {
+                    container.innerHTML = '<p>No messages yet.</p>';
+                    return;
+                }
+
+                // Sort messages by timestamp (newest first)
+                messages.sort((a, b) => new Date(b.timestamp) - new Date(a.timestamp));
+
+                // Create HTML for each message
+                messages.forEach(message => {
+                    const messageDiv = document.createElement('div');
+                    messageDiv.className = 'message';
+
+                    const contentP = document.createElement('p');
+                    contentP.className = 'message-content';
+                    contentP.textContent = message.content;
+
+                    const timeP = document.createElement('p');
+                    timeP.className = 'message-time';
+                    timeP.textContent = formatDate(message.timestamp);
+
+                    messageDiv.appendChild(contentP);
+                    messageDiv.appendChild(timeP);
+                    container.appendChild(messageDiv);
+                });
+            })
+            .catch(error => {
+                console.error('Error fetching messages:', error);
+                document.getElementById('message-container').innerHTML = 
+                    '<p>Error loading messages. Please try again later.</p>';
+            });
+    </script>
+</body>
+</html> 
diff --git a/week7/abby_li/index.html b/week7/abby_li/index.html
@@ -0,0 +1,102 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Socket.IO Chat</title>
+    <style>
+      body { 
+        margin: 0; 
+        padding-bottom: 3rem; 
+        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; 
+      }
+
+      #form { 
+        background: rgba(0, 0, 0, 0.15); 
+        padding: 0.25rem; 
+        position: fixed; 
+        bottom: 0; 
+        left: 0; 
+        right: 0; 
+        display: flex; 
+        height: 3rem; 
+        box-sizing: border-box; 
+        backdrop-filter: blur(10px); 
+      }
+
+      #input { 
+        border: none; 
+        padding: 0 1rem; 
+        flex-grow: 1; 
+        border-radius: 2rem; 
+        margin: 0.25rem; 
+      }
+
+      #input:focus { 
+        outline: none; 
+      }
+
+      #form > button { 
+        background: #333; 
+        border: none; 
+        padding: 0 1rem;
+        margin: 0.25rem; 
+        border-radius: 3px; 
+        outline: none; 
+        color: #fff; 
+        cursor: pointer;
+      }
+
+      #messages { 
+        list-style-type: none; 
+        margin: 0; 
+        padding: 0; 
+      }
+
+      #messages > li { 
+        padding: 0.5rem 1rem; 
+      }
+
+      #messages > li:nth-child(odd) { 
+        background: #efefef; 
+      }
+    </style>
+  </head>
+  <body>
+    <ul id="messages"></ul>
+    <form id="form" action="">
+      <input id="input" autocomplete="off" placeholder="Type a message..." /><button>Send</button>
+    </form>
+    <script src="/socket.io/socket.io.js"></script>
+    <script>
+      var socket = io();
+      var form = document.getElementById('form');
+      var input = document.getElementById('input');
+      var messages = document.getElementById('messages');
+
+      // Load history messages
+      socket.on('load messages', function(msgs) {
+        msgs.forEach(function(msg) {
+          appendMessage(msg.content);
+        });
+      });
+
+      form.addEventListener('submit', function(e) {
+        e.preventDefault();
+        if (input.value) {
+          socket.emit('chat message', input.value);
+          input.value = '';
+        }
+      });
+
+      socket.on('chat message', function(msg) {
+        appendMessage(msg);
+      });
+
+      function appendMessage(msg) {
+        var item = document.createElement('li');
+        item.textContent = msg;
+        messages.appendChild(item);
+        window.scrollTo(0, document.body.scrollHeight);
+      }
+    </script>
+  </body>
+</html>
diff --git a/week7/abby_li/index.js b/week7/abby_li/index.js
@@ -0,0 +1,64 @@
+const express = require('express');
+const app = express();
+const http = require('http');
+const server = http.createServer(app);
+const { Server } = require("socket.io");
+const io = new Server(server);
+const mongoose = require("mongoose");
+const cors = require('cors');
+
+// Enable CORS for all routes
+app.use(cors());
+
+// Serve static files
+app.use(express.static(__dirname));
+
+const Schema = mongoose.Schema;
+
+const messageSchema = new Schema({
+  content: { type: String },
+  timestamp: { type: Date, default: Date.now }
+})
+
+const messageModel = mongoose.model("Message", messageSchema)
+
+app.get('/', function(req, res){
+  res.sendFile(__dirname + '/index.html');
+});
+
+// Route for chat history page
+app.get('/history', (req, res) => {
+  res.sendFile(__dirname + '/history.html');
+});
+
+app.get('/messages', async function(req, res){
+  res.json(await messageModel.find());
+});
+
+io.on('connection', function(socket){
+  console.log('User connected');
+
+  // Send history messages
+  messageModel.find().sort({ timestamp: -1 }).limit(10).then(messages => {
+    socket.emit('load messages', messages.reverse());
+  }).catch(error => {
+    console.error('Error loading messages:', error);
+  });
+
+  socket.on('chat message', function(msg){
+    const message = new messageModel();
+    message.content = msg;
+    message.save().then(m => {
+      io.emit('chat message', msg);
+    })
+  });
+
+  socket.on('disconnect', () => {
+    console.log('User disconnected');
+  });
+});
+
+server.listen(3000, async function(){
+  await mongoose.connect("mongodb+srv://sam:[email protected]/?retryWrites=true&w=majority&appName=Cluster0")
+  console.log('listening on *:3000');
+});
diff --git a/week7/abby_li/models/message.js b/week7/abby_li/models/message.js
@@ -0,0 +1,11 @@
+const mongoose = require('mongoose');
+const Schema = mongoose.Schema;
+
+const messageSchema = new Schema({
+  content: { type: String },
+  timestamp: { type: Date, default: Date.now }
+});
+
+const Message = mongoose.model('Message', messageSchema);
+
+module.exports = Message;