update,

.gitattributes

@@ -0,0 +1,31 @@
+*.mp4 filter=lfs diff=lfs merge=lfs
+*.zip filter=lfs diff=lfs merge=lfs
+*.7z filter=lfs diff=lfs merge=lfs
+*.tar.gz filter=lfs diff=lfs merge=lfs
+*.jpg filter=lfs diff=lfs merge=lfs
+*.png filter=lfs diff=lfs merge=lfs
+*.avif filter=lfs diff=lfs merge=lfs
+*.webm filter=lfs diff=lfs merge=lfs
+*.mkv filter=lfs diff=lfs merge=lfs
+
+# Documents
+*.doc	diff=astextplain
+*.DOC	diff=astextplain
+*.docx	diff=astextplain
+*.DOCX	diff=astextplain
+*.dot	diff=astextplain
+*.DOT	diff=astextplain
+*.pdf	diff=astextplain
+*.PDF	diff=astextplain
+*.rtf	diff=astextplain
+*.RTF	diff=astextplain
+
+*.gif filter=lfs diff=lfs merge=lfs
+*.GIF filter=lfs diff=lfs merge=lfs
+*.bmp filter=lfs diff=lfs merge=lfs
+*.BMP filter=lfs diff=lfs merge=lfs
+*.tiff filter=lfs diff=lfs merge=lfs
+*.TIFF filter=lfs diff=lfs merge=lfs
+*.wav filter=lfs diff=lfs merge=lfs
+*.WAV filter=lfs diff=lfs merge=lfs
+*.log filter=lfs diff=lfs merge=lfs

.gitignore

@@ -0,0 +1 @@
+**/~*.*

COMP3322A-Lab-6-Nodejs-WebService-Pug/.gitignore

@@ -0,0 +1,144 @@
+# Created by https://www.toptal.com/developers/gitignore/api/node
+# Edit at https://www.toptal.com/developers/gitignore?templates=node
+
+### Node ###
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional stylelint cache
+.stylelintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variable files
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+.temp
+
+# Docusaurus cache and generated files
+.docusaurus
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+### Node Patch ###
+# Serverless Webpack directories
+.webpack/
+
+# Optional stylelint cache
+
+# SvelteKit build / generate output
+.svelte-kit
+
+# End of https://www.toptal.com/developers/gitignore/api/node

COMP3322A-Lab-6-Nodejs-WebService-Pug/app/app.js

@@ -0,0 +1,52 @@
+var createError = require('http-errors');
+var express = require('express');
+var path = require('path');
+var logger = require('morgan');
+
+var MONGO_HOST = "mongo";
+// var MONGO_HOST = "127.0.0.1";
+
+// use lab6-db
+var monk = require("monk");
+var db = monk(`${MONGO_HOST}:27017/lab6-db`);
+
+var indexRouter = require('./routes/index');
+var usersRouter = require('./routes/users');
+
+var app = express();
+
+// view engine setup
+app.set('views', path.join(__dirname, 'views'));
+app.set('view engine', 'pug');
+
+app.use(logger('dev'));
+app.use(express.json());
+app.use(express.urlencoded({ extended: false }));
+app.use(express.static(path.join(__dirname, 'public')));
+
+// Make our db accessible to routers 
+app.use(function(req,res,next){
+    req.db = db; 
+	next();
+});
+
+app.use('/', indexRouter);
+app.use('/users', usersRouter);
+
+// for requests not matching the above routes, create 404 error and forward to error handler
+app.use(function(req, res, next) {
+    next(createError(404));
+});
+
+// error handler
+app.use(function(err, req, res, next) {
+  // set locals, only providing error in development environment
+    res.locals.message = err.message;
+    res.locals.error = req.app.get('env') === 'development' ? err : {};
+
+    // render the error page
+    res.status(err.status || 500);
+    res.render('error');
+});
+
+module.exports = app;

COMP3322A-Lab-6-Nodejs-WebService-Pug/app/bin/www

@@ -0,0 +1,90 @@
+#!/usr/bin/env node
+
+/**
+ * Module dependencies.
+ */
+
+var app = require('../app');
+var debug = require('debug')('app:server');
+var http = require('http');
+
+/**
+ * Get port from environment and store in Express.
+ */
+
+var port = normalizePort(process.env.PORT || '3000');
+app.set('port', port);
+
+/**
+ * Create HTTP server.
+ */
+
+var server = http.createServer(app);
+
+/**
+ * Listen on provided port, on all network interfaces.
+ */
+
+server.listen(port);
+server.on('error', onError);
+server.on('listening', onListening);
+
+/**
+ * Normalize a port into a number, string, or false.
+ */
+
+function normalizePort(val) {
+  var port = parseInt(val, 10);
+
+  if (isNaN(port)) {
+    // named pipe
+    return val;
+  }
+
+  if (port >= 0) {
+    // port number
+    return port;
+  }
+
+  return false;
+}
+
+/**
+ * Event listener for HTTP server "error" event.
+ */
+
+function onError(error) {
+  if (error.syscall !== 'listen') {
+    throw error;
+  }
+
+  var bind = typeof port === 'string'
+    ? 'Pipe ' + port
+    : 'Port ' + port;
+
+  // handle specific listen errors with friendly messages
+  switch (error.code) {
+    case 'EACCES':
+      console.error(bind + ' requires elevated privileges');
+      process.exit(1);
+      break;
+    case 'EADDRINUSE':
+      console.error(bind + ' is already in use');
+      process.exit(1);
+      break;
+    default:
+      throw error;
+  }
+}
+
+/**
+ * Event listener for HTTP server "listening" event.
+ */
+
+function onListening() {
+  var addr = server.address();
+  var bind = typeof addr === 'string'
+    ? 'pipe ' + addr
+    : 'port ' + addr.port;
+  debug('Listening on ' + bind);
+}

COMP3322A-Lab-6-Nodejs-WebService-Pug/app/package.json

@@ -0,0 +1,18 @@
+{
+  "name": "app",
+  "version": "0.0.0",
+  "private": true,
+  "scripts": {
+    "start": "node ./bin/www"
+  },
+  "dependencies": {
+    "cookie-parser": "~1.4.4",
+    "debug": "~2.6.9",
+    "express": "~4.16.1",
+    "http-errors": "~1.6.3",
+    "jade": "~1.11.0",
+    "monk": "^7.3.4",
+    "morgan": "~1.9.1",
+    "pug": "^3.0.2"
+  }
+}

COMP3322A-Lab-6-Nodejs-WebService-Pug/app/public/javascripts/externalJS.js

@@ -0,0 +1,109 @@
+$(document).ready(function() {
+    showAllTopics()
+});
+
+
+// step 7.2
+function showAllTopics() {
+  var table_content = `
+        <tr>
+            <th>Topic Name</th>
+            <th>Study Hour</th>
+            <th>Chosen Status</th>
+            <th>Operation</th>
+        </tr>
+    `;
+
+  $.getJSON("/users/get_table", function (data) {
+    $.each(data, function () {
+      // 1. for each row tag, add the attribute class=“highlight” if the status field of the topic is “yes”
+
+      // 2. the last <td> element contains an <a> element with text “add” or “remove”
+      //    (if status field equals to “yes”, text should be “remove”; otherwise, text should be “add”)
+
+      // 3. The table row representations should be all concatenated into the string table_content.
+      table_content += `
+          <tr ${this.status == "yes" ? 'class="highlight"' : ""}>
+            <td>${this.name}</td>
+            <td>${this.hour}</td>
+            <td>${this.status}</td>
+            <td>
+              ${
+                this.status == "yes"
+                  ? `<a  href="#" class="operation" rel="${this._id}" >remove</a>`
+                  : `<a  href="#" class="operation" rel="${this._id}" >add</a>`
+              }
+            </td>
+          </tr>`;
+    });
+
+    // Finally, use $(‘#plan_table’).html() to set HTML content of the table element of id “plan_table” to table_content.
+    $("#plan_table").html(table_content);
+  });
+}
+
+// step 8.2
+function operateTopic(event) {
+  // event.preventDefault() to prevent opening the link “#” when the hyperlink is clicked
+  event.preventDefault();
+
+  // retrieve _id of the topic that you are going to add/remove from the ‘rel’ attribute using $(this).attr(‘rel’)
+  var _id = $(this).attr("rel");
+
+  // use $.ajax() to send a HTTP PUT request for “/users/update_status” with JSON data
+  // {_id: _id field retrieved, op: operation retrieved};
+  $.ajax({
+    type: "PUT",
+    url: `/users/update_status`,
+    data: {
+      _id: _id,
+      // retrieve the operation that your are going to perform using $(this).html().
+      op: $(this).html(),
+    },
+    dataType: "JSON",
+  }).done(function (response) {
+    if (response.msg === "Successfully updated!") {
+      // alert the response message and call showAllTopics() to refresh the topic table.
+      alert("Successfully updated!");
+
+      // call showAllTopics() to refresh the topic table.
+      showAllTopics();
+    } else {
+      alert(response.msg);
+    }
+  });
+}
+
+$("#plan_table").on("click", ".operation", operateTopic);
+
+
+// step 9.2
+function deleteTopic(event) {
+  event.preventDefault();
+
+  var topic_name = $("#input_name").val();
+
+  // check if the topic_name is valid
+  if ($(`td:contains("${topic_name}")`).length > 0) {
+    // If the length of the list is not 0, use $.ajax() to send a HTTP DELETE request for “/users/delete_topic/:topic_name”;
+    $.ajax({
+      type: "DELETE",
+      url: `/users/delete_topic/${topic_name}`,
+    }).done(function (res) {
+      if (res.msg == "Successfully deleted!") {
+        // success delete,
+        // 1. call showAllTopics() to refresh the topic table.
+        // 2. alert response message
+        showAllTopics();
+        alert(res.msg);
+      }
+      // clear after delete operation
+      $("#input_name").val("");
+    });
+  } else {
+    // alert the message “No such topic in the table!”
+    alert("No such topic in the table!");
+  }
+}
+
+$("#submit_delete").on('click', deleteTopic)

COMP3322A-Lab-6-Nodejs-WebService-Pug/app/public/stylesheets/style.css

@@ -0,0 +1,159 @@
+body {
+  margin: 0;
+  background: #163a50;
+  font: 300 100%/120% "Tahoma", Arial, Helvetica, sans-serif;
+}
+
+header {
+  overflow: hidden;
+}
+
+header, nav, .contents, footer {
+  box-sizing: border-box;
+  max-width: 1080px;
+  margin-left: auto;
+  margin-right: auto;
+}
+
+header, nav, footer {
+  background: #0f2736;
+}
+
+h1, h2, h3, h4 {
+  font-weight: bold
+}
+
+.contents {
+  padding: 1em 2em 2.5em 2em;
+}
+
+/* increase line spacing for main title */
+h1 {
+  line-height: 120%;
+  margin-top: 0.5em;
+  float: left;
+  width: auto;
+}
+
+header img {
+  float: left;
+}
+
+/* change color and remove underline for links */
+footer a {
+  color: inherit;
+  text-decoration: none;
+}
+
+#plan_table a {
+  color: rgb(0, 47, 255);
+}
+
+/* size and margin for logo image */
+header img {
+  max-width: 100%;
+  max-height: 100%;
+  margin: 0.5em;
+}
+
+form {
+  padding: 1em 2em;
+}
+
+input[type="number"] {
+  min-width: 4em;
+}
+
+/* style for footer */
+footer {
+  margin: auto;
+  text-align: center;
+}
+
+footer div {
+  padding: 1em;
+}
+
+.contents h2 {
+  text-align: center;
+}
+
+button {
+  margin-top: 1em;
+  margin-bottom: 1em;
+  width: 5em;
+  height: 2em;
+}
+
+input {
+  width: 5em;
+  height: 1.6em;
+  margin-right: 2em;
+}
+
+#delete_div p{
+  color: gray;
+}
+
+
+header *, nav * {
+  color: #FFFFFF;
+}
+
+.contents {
+  background: #FFFFFF;
+}
+
+.subtitle {
+  font-size: 0.6em;
+  font-weight: normal;
+}
+
+@media screen and (max-width: 1080px) {
+  header,nav {
+      overflow: hidden;
+  }
+}
+
+@media screen and (max-width: 720px) {
+  header img {
+      display: none;
+  }
+  header h1 {
+      padding: 0 0.5em;
+  }
+  nav div {
+      width: 100%;
+  }
+}
+
+.contents {
+  text-align: center;
+}
+
+.contents li{
+  text-align: left;
+}
+
+/* style for the table */
+table, th, td {
+  border: 1.8px solid black;
+  border-collapse: collapse;
+  text-align: center;
+  vertical-align: center;
+  margin: auto;
+  width: 400px;
+  height: 50px;
+}
+
+th {
+  background-color: rgb(178, 177, 177);
+}
+
+.highlight {
+  background-color: rgb(255, 0, 0);
+}
+
+#plan_table {
+  margin-bottom: 2em;
+}

COMP3322A-Lab-6-Nodejs-WebService-Pug/app/public/stylesheets/style.js

@@ -0,0 +1,159 @@
+body {
+    margin: 0;
+    background: #163a50;
+    font: 300 100%/120% "Tahoma", Arial, Helvetica, sans-serif;
+}
+
+header {
+    overflow: hidden;
+}
+
+header, nav, .contents, footer {
+    box-sizing: border-box;
+    max-width: 1080px;
+    margin-left: auto;
+    margin-right: auto;
+}
+
+header, nav, footer {
+    background: #0f2736;
+}
+
+h1, h2, h3, h4 {
+    font-weight: bold
+}
+
+.contents {
+    padding: 1em 2em 2.5em 2em;
+}
+
+/* increase line spacing for main title */
+h1 {
+    line-height: 120%;
+    margin-top: 0.5em;
+    float: left;
+    width: auto;
+}
+
+header img {
+    float: left;
+}
+
+/* change color and remove underline for links */
+footer a {
+    color: inherit;
+    text-decoration: none;
+}
+
+#plan_table a {
+    color: rgb(0, 47, 255);
+}
+
+/* size and margin for logo image */
+header img {
+    max-width: 100%;
+    max-height: 100%;
+    margin: 0.5em;
+}
+
+form {
+    padding: 1em 2em;
+}
+
+input[type="number"] {
+    min-width: 4em;
+}
+
+/* style for footer */
+footer {
+    margin: auto;
+    text-align: center;
+}
+
+footer div {
+    padding: 1em;
+}
+
+.contents h2 {
+    text-align: center;
+}
+
+button {
+    margin-top: 1em;
+    margin-bottom: 1em;
+    width: 5em;
+    height: 2em;
+}
+
+input {
+    width: 5em;
+    height: 1.6em;
+    margin-right: 2em;
+}
+
+#delete_div p{
+    color: gray;
+}
+
+
+header *, nav * {
+    color: #FFFFFF;
+}
+
+.contents {
+    background: #FFFFFF;
+}
+
+.subtitle {
+    font-size: 0.6em;
+    font-weight: normal;
+}
+
+@media screen and (max-width: 1080px) {
+    header,nav {
+        overflow: hidden;
+    }
+}
+
+@media screen and (max-width: 720px) {
+    header img {
+        display: none;
+    }
+    header h1 {
+        padding: 0 0.5em;
+    }
+    nav div {
+        width: 100%;
+    }
+}
+
+.contents {
+    text-align: center;
+}
+
+.contents li{
+    text-align: left;
+}
+
+/* style for the table */
+table, th, td {
+    border: 1.8px solid black;
+    border-collapse: collapse;
+    text-align: center;
+    vertical-align: center;
+    margin: auto;
+    width: 400px;
+    height: 50px;
+}
+
+th {
+    background-color: rgb(178, 177, 177);
+}
+
+.highlight {
+    background-color: rgb(255, 0, 0);
+}
+
+#plan_table {
+    margin-bottom: 2em;
+}

COMP3322A-Lab-6-Nodejs-WebService-Pug/app/routes/index.js

@@ -0,0 +1,9 @@
+var express = require('express');
+var router = express.Router();
+
+/* GET home page. */
+router.get('/', function(req, res, next) {
+  res.render('index', { title: 'Express' });
+});
+
+module.exports = router;

COMP3322A-Lab-6-Nodejs-WebService-Pug/app/views/index.pug

@@ -0,0 +1,30 @@
+extends layout
+
+
+
+block content 
+    div#debug_test
+      
+    header
+        img(src='/images/logo.png' width="128" height="128")
+        h1 Course Study Plan
+            br 
+            span(class="subtitle") COMP3322A Modern Technologies on World Wide Web
+
+    section(class="contents")
+        h2 Instruction
+        ul
+            li Add/Remove a topic to/from your study plan by clicking the respective operation.
+            li Delete a topic permanently by typing its name into the input box and clicking the "Delete" button.
+        hr
+
+        h2 Topic Plan
+        div
+            table#plan_table
+        div#delete_div
+            p Fill in a topic name to delete it from the table permanently:
+            input#input_name(type='text', placeholder='topic name')
+            button#submit_delete Delete
+
+    footer
+        div <a href="#">Back to top</a>

COMP3322A-Lab-6-Nodejs-WebService-Pug/app/views/layout.pug

@@ -0,0 +1,10 @@
+doctype html
+html
+    head
+        title= "lab6"
+        link(rel='stylesheet', href='/stylesheets/style.css')
+        meta(name="viewport" content="width=device-width, initial-scale=1.0")
+    body
+        block content
+        script(src='https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js') 
+        script(src='/javascripts/externalJS.js')

COMP3322A-Lab-6-Nodejs-WebService-Pug/docker-compose.yml

@@ -0,0 +1,28 @@
+version: "3.1"
+
+services:
+  mongo:
+    image: mongo
+    restart: always
+    ports:
+      - 127.0.0.1:27017:27017
+
+  mongo-express:
+    image: mongo-express
+    restart: always
+    ports:
+      - 127.0.0.1:8081:8081
+
+  webdev:
+    image: node:14-buster
+    # user: 1000:1000
+    volumes:
+      - .:/app
+    working_dir: /app
+    ports:
+      - 127.0.0.1:3000:3000
+      - 127.0.0.1:9229:9229
+    environment:
+      - NODE_OPTIONS=--inspect=0.0.0.0:9229
+    command: sleep infinity
+    

COMP3322A-Lab-6-Nodejs-WebService-Pug/docs/README.md

@@ -0,0 +1,2 @@
+mac + chrome
+

COMP3322A-Lab-6-Nodejs-WebService-Pug/docs/lab6_materials/app.js

@@ -0,0 +1,49 @@
+var createError = require('http-errors');
+var express = require('express');
+var path = require('path');
+var logger = require('morgan');
+
+// use lab6-db
+var monk = require('monk');
+var db = monk('127.0.0.1:27017/lab6-db');
+
+var indexRouter = require('./routes/index');
+var usersRouter = require('./routes/users');
+
+var app = express();
+
+// view engine setup
+app.set('views', path.join(__dirname, 'views'));
+app.set('view engine', 'pug');
+
+app.use(logger('dev'));
+app.use(express.json());
+app.use(express.urlencoded({ extended: false }));
+app.use(express.static(path.join(__dirname, 'public')));
+
+// Make our db accessible to routers 
+app.use(function(req,res,next){
+    req.db = db; 
+	next();
+});
+
+app.use('/', indexRouter);
+app.use('/users', usersRouter);
+
+// for requests not matching the above routes, create 404 error and forward to error handler
+app.use(function(req, res, next) {
+    next(createError(404));
+});
+
+// error handler
+app.use(function(err, req, res, next) {
+  // set locals, only providing error in development environment
+    res.locals.message = err.message;
+    res.locals.error = req.app.get('env') === 'development' ? err : {};
+
+    // render the error page
+    res.status(err.status || 500);
+    res.render('error');
+});
+
+module.exports = app;

COMP3322A-Lab-6-Nodejs-WebService-Pug/docs/lab6_materials/externalJS.js

@@ -0,0 +1,51 @@
+$(document).ready(function() {
+    showAllTopics()
+});
+
+
+// step 7.2
+function showAllTopics(){
+    var table_content = `
+        <tr><th>Topic Name</th>
+        <th>Study Hour</th>
+        <th>Chosen Status</th>
+        <th>Operation</th></tr>
+    `
+
+    
+
+
+
+
+
+
+}
+
+$("#plan_table").on('click', '.operation', operateTopic)
+
+// step 8.2
+function operateTopic(event){
+    event.preventDefault()
+    
+    
+
+
+
+
+
+
+}
+
+$("#submit_delete").on('click', deleteTopic)
+
+
+// step 9.2
+function deleteTopic(event){
+    event.preventDefault()
+
+
+
+
+
+
+}

COMP3322A-Lab-6-Nodejs-WebService-Pug/docs/lab6_materials/generate_db.js

@@ -0,0 +1,18 @@
+var conn = new Mongo();
+var db = conn.getDB("lab6-db");
+
+var topic_name = ["www", "html", "css", "javascript", "nodejs", "jquery"];
+var topic_status = ["no", "no", "no", "no", "no", "no"];
+var topic_hour = [2, 4, 4, 6, 10, 6];
+
+db.topicList.remove({});
+
+for(let i = 0; i < topic_name.length; i++){
+    db.topicList.insert(
+        {
+            'name': topic_name[i],
+            'hour': topic_hour[i],
+            'status': topic_status[i]
+        }
+    )
+}

COMP3322A-Lab-6-Nodejs-WebService-Pug/docs/lab6_materials/index.pug

@@ -0,0 +1,26 @@
+extends layout
+
+block content 
+    header
+        img(src='/images/logo.png' width="128" height="128")
+        h1 Course Study Plan
+            br 
+            span(class="subtitle") COMP3322A Modern Technologies on World Wide Web
+
+    section(class="contents")
+        h2 Instruction
+        ul
+            li Add/Remove a topic to/from your study plan by clicking the respective operation.
+            li Delete a topic permanently by typing its name into the input box and clicking the "Delete" button.
+        hr
+
+        h2 Topic Plan
+        div
+            table#plan_table
+        div#delete_div
+            p Fill in a topic name to delete it from the table permanently:
+            input#input_name(type='text', placeholder='topic name')
+            button#submit_delete Delete
+
+    footer
+        div <a href="#">Back to top</a>

COMP3322A-Lab-6-Nodejs-WebService-Pug/docs/lab6_materials/layout.pug

@@ -0,0 +1,10 @@
+doctype html
+html
+    head
+        title= "lab6"
+        link(rel='stylesheet', href='/stylesheets/style.css')
+        meta(name="viewport" content="width=device-width, initial-scale=1.0")
+    body
+        block content
+        script(src='https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js') 
+        script(src='/javascripts/externalJS.js')

COMP3322A-Lab-6-Nodejs-WebService-Pug/docs/lab6_materials/style.css

@@ -0,0 +1,159 @@
+body {
+    margin: 0;
+    background: #163a50;
+    font: 300 100%/120% "Tahoma", Arial, Helvetica, sans-serif;
+}
+
+header {
+    overflow: hidden;
+}
+
+header, nav, .contents, footer {
+    box-sizing: border-box;
+    max-width: 1080px;
+    margin-left: auto;
+    margin-right: auto;
+}
+
+header, nav, footer {
+    background: #0f2736;
+}
+
+h1, h2, h3, h4 {
+    font-weight: bold
+}
+
+.contents {
+    padding: 1em 2em 2.5em 2em;
+}
+
+/* increase line spacing for main title */
+h1 {
+    line-height: 120%;
+    margin-top: 0.5em;
+    float: left;
+    width: auto;
+}
+
+header img {
+    float: left;
+}
+
+/* change color and remove underline for links */
+footer a {
+    color: inherit;
+    text-decoration: none;
+}
+
+#plan_table a {
+    color: rgb(0, 47, 255);
+}
+
+/* size and margin for logo image */
+header img {
+    max-width: 100%;
+    max-height: 100%;
+    margin: 0.5em;
+}
+
+form {
+    padding: 1em 2em;
+}
+
+input[type="number"] {
+    min-width: 4em;
+}
+
+/* style for footer */
+footer {
+    margin: auto;
+    text-align: center;
+}
+
+footer div {
+    padding: 1em;
+}
+
+.contents h2 {
+    text-align: center;
+}
+
+button {
+    margin-top: 1em;
+    margin-bottom: 1em;
+    width: 5em;
+    height: 2em;
+}
+
+input {
+    width: 5em;
+    height: 1.6em;
+    margin-right: 2em;
+}
+
+#delete_div p{
+    color: gray;
+}
+
+
+header *, nav * {
+    color: #FFFFFF;
+}
+
+.contents {
+    background: #FFFFFF;
+}
+
+.subtitle {
+    font-size: 0.6em;
+    font-weight: normal;
+}
+
+@media screen and (max-width: 1080px) {
+    header,nav {
+        overflow: hidden;
+    }
+}
+
+@media screen and (max-width: 720px) {
+    header img {
+        display: none;
+    }
+    header h1 {
+        padding: 0 0.5em;
+    }
+    nav div {
+        width: 100%;
+    }
+}
+
+.contents {
+    text-align: center;
+}
+
+.contents li{
+    text-align: left;
+}
+
+/* style for the table */
+table, th, td {
+    border: 1.8px solid black;
+    border-collapse: collapse;
+    text-align: center;
+    vertical-align: center;
+    margin: auto;
+    width: 400px;
+    height: 50px;
+}
+
+th {
+    background-color: rgb(178, 177, 177);
+}
+
+.highlight {
+    background-color: rgb(255, 0, 0);
+}
+
+#plan_table {
+    margin-bottom: 2em;
+}

COMP3322A-Lab-6-Nodejs-WebService-Pug/gen_db.js

@@ -0,0 +1,22 @@
+var MongoClient = require("mongodb").MongoClient;
+
+var topic_name = ["www", "html", "css", "javascript", "nodejs", "jquery", "louiscklaw1", "louiscklaw2", "louiscklaw3"];
+var topic_status = ["no", "no", "no", "no", "no", "no", "no", "no", "no"];
+var topic_hour = [2, 4, 4, 6, 10, 6, 1, 2, 3];
+
+MongoClient.connect("mongodb://mongo:27017/", function (err, result) {
+  if (!err) {
+    console.log("We are connected");
+    var db = result.db("lab6-db");
+
+    db.collection("topicList").remove({});
+
+    for (let i = 0; i < topic_name.length; i++) {
+      db.collection("topicList").insert({
+        name: topic_name[i],
+        hour: topic_hour[i],
+        status: topic_status[i],
+      });
+    }
+  }
+});

COMP3322A-Lab-6-Nodejs-WebService-Pug/init-express.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+
+set -ex
+
+rm -rf app
+
+mkdir app
+
+pushd app
+  npx express-generator
+popd
+
+pushd app
+  npm install
+  npm install pug
+
+  npm install monk
+popd
+
+pushd app
+  # (1) overwrite the original “app.js” in the Express app directory with the “app.js” we provided.
+  # (2) overwrite the original “users.js” in ./routes with the same file that we provided;
+  cp /home/logic/_workspace/COMP3322A-lab6/docs/lab6_materials/app.js app.js
+  cp /home/logic/_workspace/COMP3322A-lab6/docs/lab6_materials/users.js routes/users.js
+
+  # (3) move “externalJS.js” to ./public/javascripts;
+  # (4) move “style.css” to ./public/stylesheets;
+  cp /home/logic/_workspace/COMP3322A-lab6/docs/lab6_materials/externalJS.js public/javascripts/externalJS.js
+  cp /home/logic/_workspace/COMP3322A-lab6/docs/lab6_materials/style.css public/stylesheets/style.js
+
+
+  # (5) overwrite the original “index.pug” and “layout.pug” with the same files that we provided;
+  # (6) move “logo.png” to ./public/images.
+  rm -rf views/*.jade
+  cp /home/logic/_workspace/COMP3322A-lab6/docs/lab6_materials/index.pug views/index.pug
+  cp /home/logic/_workspace/COMP3322A-lab6/docs/lab6_materials/layout.pug views/layout.pug
+  cp /home/logic/_workspace/COMP3322A-lab6/docs/lab6_materials/logo.png ./public/images/logo.png
+
+  node app.js
+
+popd

COMP3322A-Lab-6-Nodejs-WebService-Pug/install_mongo.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+
+# https://www.mongodb.com/docs/manual/tutorial/install-mongodb-on-ubuntu/
+
+
+pushd /app/docs/lab6_materials
+  mongo mongo/ ./generate_db.js

COMP3322A-Lab-6-Nodejs-WebService-Pug/package.json

@@ -0,0 +1,30 @@
+{
+  "name": "comp3322a-lab6",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "directories": {
+    "doc": "docs",
+    "test": "test"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "into_docker": "docker compose exec -it webdev bash",
+    "docker_rebuild": "docker compose up --build -d",
+    "gitUpdate": "git add . && git commit -am \"update COMP3322A-Lab-6,\" && git push"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/louiscklaw/COMP3322A-lab6.git"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/louiscklaw/COMP3322A-lab6/issues"
+  },
+  "homepage": "https://github.com/louiscklaw/COMP3322A-lab6#readme",
+  "dependencies": {
+    "mongodb": "^4.11.0"
+  }
+}

COMP3322A-Lab-7-React/.gitignore

@@ -0,0 +1,20 @@
+# Created by https://www.toptal.com/developers/gitignore/api/react
+# Edit at https://www.toptal.com/developers/gitignore?templates=react
+
+### react ###
+.DS_*
+*.log
+logs
+**/*.backup.*
+**/*.back.*
+
+node_modules
+bower_components
+
+*.sublime*
+
+psd
+thumb
+sketch
+
+# End of https://www.toptal.com/developers/gitignore/api/react

COMP3322A-Lab-7-React/NOTES.md

@@ -0,0 +1,13 @@
+![docs/screenshot.png](docs/screenshot.png)
+
+### login
+
+
+### select
+
+
+### show
+
+
+### logout
+

COMP3322A-Lab-7-React/code/Dockerfile

@@ -0,0 +1,3 @@
+# CREDIT: https://github.com/shren207/nextjs-docker-compose
+# Dockerfile
+FROM node:16-buster

COMP3322A-Lab-7-React/code/docker-compose.yml

@@ -0,0 +1,14 @@
+# CREDIT: https://github.com/shren207/nextjs-docker-compose
+version: '3.8'
+
+services:
+  react:
+    build: .
+    ports:
+      - '8082:3000'
+    restart: always
+    user: 1000:1000
+    working_dir: /app
+    volumes:
+      - $PWD:/app
+    command: sleep infinity

COMP3322A-Lab-7-React/code/entry.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+set -ex
+
+pushd myreactapp
+  npm i -d
+
+  npm start

COMP3322A-Lab-7-React/code/init-react.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+
+rm -rf myreactapp
+
+set -ex
+
+npx create-react-app myreactapp
+
+pushd myreactapp
+  npm i -d
+  npm start
+
+popd

COMP3322A-Lab-7-React/code/myreactapp/.gitignore

@@ -0,0 +1,23 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*

COMP3322A-Lab-7-React/code/myreactapp/README.md

@@ -0,0 +1,70 @@
+# Getting Started with Create React App
+
+This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
+
+## Available Scripts
+
+In the project directory, you can run:
+
+### `npm start`
+
+Runs the app in the development mode.\
+Open [http://localhost:3000](http://localhost:3000) to view it in your browser.
+
+The page will reload when you make changes.\
+You may also see any lint errors in the console.
+
+### `npm test`
+
+Launches the test runner in the interactive watch mode.\
+See the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more information.
+
+### `npm run build`
+
+Builds the app for production to the `build` folder.\
+It correctly bundles React in production mode and optimizes the build for the best performance.
+
+The build is minified and the filenames include the hashes.\
+Your app is ready to be deployed!
+
+See the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.
+
+### `npm run eject`
+
+**Note: this is a one-way operation. Once you `eject`, you can't go back!**
+
+If you aren't satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.
+
+Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point you're on your own.
+
+You don't have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldn't feel obligated to use this feature. However we understand that this tool wouldn't be useful if you couldn't customize it when you are ready for it.
+
+## Learn More
+
+You can learn more in the [Create React App documentation](https://facebook.github.io/create-react-app/docs/getting-started).
+
+To learn React, check out the [React documentation](https://reactjs.org/).
+
+### Code Splitting
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/code-splitting](https://facebook.github.io/create-react-app/docs/code-splitting)
+
+### Analyzing the Bundle Size
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size](https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size)
+
+### Making a Progressive Web App
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app](https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app)
+
+### Advanced Configuration
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/advanced-configuration](https://facebook.github.io/create-react-app/docs/advanced-configuration)
+
+### Deployment
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/deployment](https://facebook.github.io/create-react-app/docs/deployment)
+
+### `npm run build` fails to minify
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify](https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify)

COMP3322A-Lab-7-React/code/myreactapp/package.json

@@ -0,0 +1,38 @@
+{
+  "name": "myreactapp",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "@testing-library/jest-dom": "^5.16.5",
+    "@testing-library/react": "^13.4.0",
+    "@testing-library/user-event": "^13.5.0",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "react-scripts": "5.0.1",
+    "web-vitals": "^2.1.4"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test",
+    "eject": "react-scripts eject"
+  },
+  "eslintConfig": {
+    "extends": [
+      "react-app",
+      "react-app/jest"
+    ]
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  }
+}

COMP3322A-Lab-7-React/code/myreactapp/public/index.html

@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="theme-color" content="#000000" />
+    <meta
+      name="description"
+      content="Web site created using create-react-app"
+    />
+    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
+    <!--
+      manifest.json provides metadata used when your web app is installed on a
+      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
+    <!--
+      Notice the use of %PUBLIC_URL% in the tags above.
+      It will be replaced with the URL of the `public` folder during the build.
+      Only files inside the `public` folder can be referenced from the HTML.
+
+      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
+      work correctly both with client-side routing and a non-root public URL.
+      Learn how to configure a non-root public URL by running `npm run build`.
+    -->
+    <title>React App</title>
+  </head>
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+    <div id="root"></div>
+    <!--
+      This HTML file is a template.
+      If you open it directly in the browser, you will see an empty page.
+
+      You can add webfonts, meta tags, or analytics to this file.
+      The build step will place the bundled scripts into the <body> tag.
+
+      To begin the development, run `npm start` or `yarn start`.
+      To create a production bundle, use `npm run build` or `yarn build`.
+    -->
+  </body>
+</html>

COMP3322A-Lab-7-React/code/myreactapp/public/manifest.json

@@ -0,0 +1,25 @@
+{
+  "short_name": "React App",
+  "name": "Create React App Sample",
+  "icons": [
+    {
+      "src": "favicon.ico",
+      "sizes": "64x64 32x32 24x24 16x16",
+      "type": "image/x-icon"
+    },
+    {
+      "src": "logo192.png",
+      "type": "image/png",
+      "sizes": "192x192"
+    },
+    {
+      "src": "logo512.png",
+      "type": "image/png",
+      "sizes": "512x512"
+    }
+  ],
+  "start_url": ".",
+  "display": "standalone",
+  "theme_color": "#000000",
+  "background_color": "#ffffff"
+}

COMP3322A-Lab-7-React/code/myreactapp/public/robots.txt

@@ -0,0 +1,3 @@
+# https://www.robotstxt.org/robotstxt.html
+User-agent: *
+Disallow:

COMP3322A-Lab-7-React/code/myreactapp/src/App.css

@@ -0,0 +1,38 @@
+.App {
+  text-align: center;
+}
+
+.App-logo {
+  height: 40vmin;
+  pointer-events: none;
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  .App-logo {
+    animation: App-logo-spin infinite 20s linear;
+  }
+}
+
+.App-header {
+  background-color: #282c34;
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  font-size: calc(10px + 2vmin);
+  color: white;
+}
+
+.App-link {
+  color: #61dafb;
+}
+
+@keyframes App-logo-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}

COMP3322A-Lab-7-React/code/myreactapp/src/App.js

@@ -0,0 +1,231 @@
+import React from "react";
+
+// 4.2. Go to class LoginButton. In its render() function, we are rendering a login button with the
+// handler function this.handleClick bound to the onclick event. Implement the function
+// handleClick(): If the input username and password are valid, use
+// this.props.handleStatusChange(xx, yy) received from class Lab7App to update the state
+// variables of Lab7App, where xx equals “true” and yy equals this.props.username received from
+// class Lab7App; otherwise, alert the message “Login failed!” Hint: you can use the provided
+// function checkValid() to check if the input username and password are valid, which returns true
+// if the inputs are included in the predefined array userDB, and returns false, otherwise. Read more
+// about the array find() function at https://developer.mozilla.org/en-
+// US/docs/Web/JavaScript/Reference/Global_Objects/Array/find
+
+class LoginButton extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.checkValid = this.checkValid.bind(this);
+  }
+
+  checkValid() {
+    let item = userDB.find((item) => {
+      return item.username == this.props.username && item.password == this.props.password;
+    });
+    if (item != undefined) return true;
+    else return false;
+  }
+
+  // step 4.2
+  handleClick() {
+    if (this.checkValid()) {
+      this.props.handleStatusChange(true, this.props.username);
+    } else {
+      // otherwise, alert the message “Login failed!”
+      alert("Login failed!");
+    }
+  }
+
+  render() {
+    return <button onClick={() => this.handleClick()}>Login</button>;
+  }
+}
+
+class Contents extends React.Component {
+  constructor(props) {
+    super(props);
+    this.state = {
+      topics: topicsDB,
+    };
+    this.handleTopicsChange = this.handleTopicsChange.bind(this);
+  }
+
+  // step 7
+  // Step 7. Implement filtering of topics list
+  // Now implement the function handleTopicsChange() in class Contents as follows: if value of the
+  // argument option is not “all” (i.e., it is one of the three sections instead), apply filter() function on
+  // topicsDB to obtain a filtered topics array where each topic’s section is option (learn more about
+  // JavaScript Array filter method at https://developer.mozilla.org/en-
+  // US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter), and set the state variable
+  // Topics to be the filtered array; otherwise, set the state variable Topics to be topicsDB. Note that
+  // you need to use this.setState() to change a state variable’s value.
+  handleTopicsChange(option) {
+    if (option == "all") {
+      this.setState({ topics: topicsDB });
+    } else {
+      this.setState({ topics: topicsDB.filter((o) => o.section == option) });
+    }
+  }
+
+  render() {
+    const topics = this.state.topics;
+    return (
+      <div id="contents">
+        <DropDownList handleTopicsChange={this.handleTopicsChange} />
+        {
+          // Step 5. Render topics list in class component Contents
+          // Go to class Contents, which has a state of one key-value pair: topics stores the list of topics to be
+          // shown on the page, initialized using the given array topicsDB. Complete the render() function of
+          // class Contents: within { }, apply map() function on topics to create a number of <p> elements,
+          // each presenting information of one topic in the topics array as <p>Section: {topic.section}; Topic
+          // Name: {topic.topic}</p>. The handler function handleTopicsChange() is to change the state
+          // variable topics upon selecting a different option in the drop-down list (to be implemented later).
+
+          topics.map((topic) => {
+            return (
+              <>
+                <p>
+                  Section: {topic.section}; Name: {topic.topic}
+                </p>
+              </>
+            );
+          })
+        }
+      </div>
+    );
+  }
+}
+
+function DropDownList(props) {
+  var key_pool = {};
+  const getUniq = (value_in) => {
+    if (key_pool[value_in] != undefined) return false;
+
+    key_pool[value_in] = "";
+    return true;
+  };
+  return (
+    <div>
+      <b>Choose one section: </b>
+
+      {
+        // Step 6. Render a drop-down list in function component DropDownList
+        // Now go to function DropDownList, which receives the handler function handleTopicsChange of
+        // class Contents in its props. Complete its render() function as follows: remove "{/* step 6*/}", and
+        // in its place, create a drop-down list using the <select> element with four options (with values
+        // “all”, “section-1”, “section-2” and “section-3”, respectively). The option “all” should be
+        // associated with the attribute “selected” as the default option. Add an event handler function to
+        // onChange event on the <select> element (to track the change of selected option and update
+        // topics list accordingly), which should be e => props.handleTopicsChange(e.target.value).
+      }
+      <></>
+      {
+        <select onChange={(e) => props.handleTopicsChange(e.target.value)}>
+          <option selected value="all">
+            all
+          </option>
+          {
+            // topicsDB
+            //  get unique by section
+            //  extract section
+            //  sort before exit
+          }
+          {topicsDB
+            .filter((t) => getUniq(t.section))
+            .map((ut) => ut.section)
+            .sort()
+            .map((ts) => (
+              <option value={ts}>{ts}</option>
+            ))}
+        </select>
+      }
+    </div>
+  );
+}
+
+class Lab7App extends React.Component {
+  constructor(props) {
+    super(props);
+    this.state = {
+      isLogin: false,
+      loginName: "",
+      inputUserName: "",
+      inputUserPswd: "",
+    };
+    this.handleInputChange = this.handleInputChange.bind(this);
+    this.handleStatusChange = this.handleStatusChange.bind(this);
+  }
+
+  // step 3
+  handleInputChange(event) {
+    let target = event.target;
+    let name = target.name;
+    let value = target.value;
+    this.setState({ [name]: value });
+  }
+
+  handleStatusChange(newStatus, loginName) {
+    const isUserLoggedIn = (login_status) => login_status == true;
+
+    if (isUserLoggedIn(newStatus)) {
+      this.setState({ isLogin: newStatus, loginName: loginName });
+    } else {
+      this.setState({ isLogin: newStatus, loginName: loginName, inputUserName: "", inputUserPswd: "" });
+    }
+  }
+
+  render() {
+    if (!this.state.isLogin) {
+      return (
+        <div>
+          <p>Fill in username and password and click the button to log in</p>
+          <input type="text" name="inputUserName" placeholder="username" value={this.state.inputUserName} onChange={(e) => this.handleInputChange(e)} />
+          <input type="password" name="inputUserPswd" placeholder="password" value={this.state.inputUserPswd} onChange={(e) => this.handleInputChange(e)} />
+
+          {
+            // 4.1. In the render() function of Lab7App, render the
+            //   LoginButton component. The LoginButton component receives three props:
+            //   1. username: which equals the value of state variable inputUserName;
+            //   2. password: which equals the value of state variable inputUserPswd;
+            //   3. handleStatusChange: which equals this.handleStatusChange. We have provided the
+            //   implementation of function handleStatusChange(), which receives the login status (boolean
+            //   type) and the name of the logged-in user (string type) as arguments, and set the state
+            //   variables isLogin and loginName to the argument values, respectively. 
+          }
+
+          <LoginButton username={this.state.inputUserName} password={this.state.inputUserPswd} handleStatusChange={this.handleStatusChange} />
+        </div>
+      );
+    } else {
+      return (
+        <div>
+          <p>Welcome {this.state.loginName}!</p>
+          <button onClick={() => this.handleStatusChange(false, "")}>Logout</button>
+          {/* 4.3. Go to class Lab7App. In the render() function, add an onClick event handler to the logout button, which is an
+          arrow function ()=>this.handleStatusChange() where handleStatusChange() receives a “false” value and an empty string as arguments. */}
+          <Contents />
+        </div>
+      );
+    }
+  }
+}
+
+const userDB = [
+  { username: "Alex", password: "123" },
+  { username: "Bob", password: "231" },
+  { username: "Jack", password: "321" },
+];
+
+const topicsDB = [
+  { section: "section-1", topic: "CSS" },
+  { section: "section-1", topic: "HTML" },
+  { section: "section-1", topic: "WWW" },
+  { section: "section-2", topic: "JaveScript" },
+  { section: "section-2", topic: "MongoDB" },
+  { section: "section-2", topic: "NodeJS" },
+  { section: "section-3", topic: "JQuery" },
+  { section: "section-3", topic: "React" },
+  { section: "section-3", topic: "Vue" },
+];
+
+export default Lab7App;

COMP3322A-Lab-7-React/code/myreactapp/src/App.test.js

@@ -0,0 +1,8 @@
+import { render, screen } from '@testing-library/react';
+import App from './App';
+
+test('renders learn react link', () => {
+  render(<App />);
+  const linkElement = screen.getByText(/learn react/i);
+  expect(linkElement).toBeInTheDocument();
+});

COMP3322A-Lab-7-React/code/myreactapp/src/index.css

@@ -0,0 +1,23 @@
+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+code {
+  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
+    monospace;
+}
+
+#root{
+  text-align: center;
+}
+
+#contents{
+  text-align: left;
+  margin-left: 40%;
+  margin-top: 2em;
+}

COMP3322A-Lab-7-React/code/myreactapp/src/index.js

@@ -0,0 +1,17 @@
+import React from "react";
+import ReactDOM from "react-dom/client";
+import "./index.css";
+import Lab7App from "./App";
+import reportWebVitals from "./reportWebVitals";
+
+const root = ReactDOM.createRoot(document.getElementById("root"));
+root.render(
+  <React.StrictMode>
+    <Lab7App />
+  </React.StrictMode>
+);
+
+// If you want to start measuring performance in your app, pass a function
+// to log results (for example: reportWebVitals(console.log))
+// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
+reportWebVitals();

COMP3322A-Lab-7-React/code/myreactapp/src/logo.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 841.9 595.3"><g fill="#61DAFB"><path d="M666.3 296.5c0-32.5-40.7-63.3-103.1-82.4 14.4-63.6 8-114.2-20.2-130.4-6.5-3.8-14.1-5.6-22.4-5.6v22.3c4.6 0 8.3.9 11.4 2.6 13.6 7.8 19.5 37.5 14.9 75.7-1.1 9.4-2.9 19.3-5.1 29.4-19.6-4.8-41-8.5-63.5-10.9-13.5-18.5-27.5-35.3-41.6-50 32.6-30.3 63.2-46.9 84-46.9V78c-27.5 0-63.5 19.6-99.9 53.6-36.4-33.8-72.4-53.2-99.9-53.2v22.3c20.7 0 51.4 16.5 84 46.6-14 14.7-28 31.4-41.3 49.9-22.6 2.4-44 6.1-63.6 11-2.3-10-4-19.7-5.2-29-4.7-38.2 1.1-67.9 14.6-75.8 3-1.8 6.9-2.6 11.5-2.6V78.5c-8.4 0-16 1.8-22.6 5.6-28.1 16.2-34.4 66.7-19.9 130.1-62.2 19.2-102.7 49.9-102.7 82.3 0 32.5 40.7 63.3 103.1 82.4-14.4 63.6-8 114.2 20.2 130.4 6.5 3.8 14.1 5.6 22.5 5.6 27.5 0 63.5-19.6 99.9-53.6 36.4 33.8 72.4 53.2 99.9 53.2 8.4 0 16-1.8 22.6-5.6 28.1-16.2 34.4-66.7 19.9-130.1 62-19.1 102.5-49.9 102.5-82.3zm-130.2-66.7c-3.7 12.9-8.3 26.2-13.5 39.5-4.1-8-8.4-16-13.1-24-4.6-8-9.5-15.8-14.4-23.4 14.2 2.1 27.9 4.7 41 7.9zm-45.8 106.5c-7.8 13.5-15.8 26.3-24.1 38.2-14.9 1.3-30 2-45.2 2-15.1 0-30.2-.7-45-1.9-8.3-11.9-16.4-24.6-24.2-38-7.6-13.1-14.5-26.4-20.8-39.8 6.2-13.4 13.2-26.8 20.7-39.9 7.8-13.5 15.8-26.3 24.1-38.2 14.9-1.3 30-2 45.2-2 15.1 0 30.2.7 45 1.9 8.3 11.9 16.4 24.6 24.2 38 7.6 13.1 14.5 26.4 20.8 39.8-6.3 13.4-13.2 26.8-20.7 39.9zm32.3-13c5.4 13.4 10 26.8 13.8 39.8-13.1 3.2-26.9 5.9-41.2 8 4.9-7.7 9.8-15.6 14.4-23.7 4.6-8 8.9-16.1 13-24.1zM421.2 430c-9.3-9.6-18.6-20.3-27.8-32 9 .4 18.2.7 27.5.7 9.4 0 18.7-.2 27.8-.7-9 11.7-18.3 22.4-27.5 32zm-74.4-58.9c-14.2-2.1-27.9-4.7-41-7.9 3.7-12.9 8.3-26.2 13.5-39.5 4.1 8 8.4 16 13.1 24 4.7 8 9.5 15.8 14.4 23.4zM420.7 163c9.3 9.6 18.6 20.3 27.8 32-9-.4-18.2-.7-27.5-.7-9.4 0-18.7.2-27.8.7 9-11.7 18.3-22.4 27.5-32zm-74 58.9c-4.9 7.7-9.8 15.6-14.4 23.7-4.6 8-8.9 16-13 24-5.4-13.4-10-26.8-13.8-39.8 13.1-3.1 26.9-5.8 41.2-7.9zm-90.5 125.2c-35.4-15.1-58.3-34.9-58.3-50.6 0-15.7 22.9-35.6 58.3-50.6 8.6-3.7 18-7 27.7-10.1 5.7 19.6 13.2 40 22.5 60.9-9.2 20.8-16.6 41.1-22.2 60.6-9.9-3.1-19.3-6.5-28-10.2zM310 490c-13.6-7.8-19.5-37.5-14.9-75.7 1.1-9.4 2.9-19.3 5.1-29.4 19.6 4.8 41 8.5 63.5 10.9 13.5 18.5 27.5 35.3 41.6 50-32.6 30.3-63.2 46.9-84 46.9-4.5-.1-8.3-1-11.3-2.7zm237.2-76.2c4.7 38.2-1.1 67.9-14.6 75.8-3 1.8-6.9 2.6-11.5 2.6-20.7 0-51.4-16.5-84-46.6 14-14.7 28-31.4 41.3-49.9 22.6-2.4 44-6.1 63.6-11 2.3 10.1 4.1 19.8 5.2 29.1zm38.5-66.7c-8.6 3.7-18 7-27.7 10.1-5.7-19.6-13.2-40-22.5-60.9 9.2-20.8 16.6-41.1 22.2-60.6 9.9 3.1 19.3 6.5 28.1 10.2 35.4 15.1 58.3 34.9 58.3 50.6-.1 15.7-23 35.6-58.4 50.6zM320.8 78.4z"/><circle cx="420.9" cy="296.5" r="45.7"/><path d="M520.5 78.1z"/></g></svg>

COMP3322A-Lab-7-React/code/myreactapp/src/reportWebVitals.js

@@ -0,0 +1,13 @@
+const reportWebVitals = onPerfEntry => {
+  if (onPerfEntry && onPerfEntry instanceof Function) {
+    import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
+      getCLS(onPerfEntry);
+      getFID(onPerfEntry);
+      getFCP(onPerfEntry);
+      getLCP(onPerfEntry);
+      getTTFB(onPerfEntry);
+    });
+  }
+};
+
+export default reportWebVitals;

COMP3322A-Lab-7-React/code/myreactapp/src/setupTests.js

@@ -0,0 +1,5 @@
+// jest-dom adds custom jest matchers for asserting on DOM nodes.
+// allows you to do things like:
+// expect(element).toHaveTextContent(/react/i)
+// learn more: https://github.com/testing-library/jest-dom
+import '@testing-library/jest-dom';

COMP3322A-Lab-7-React/code/package.json

@@ -0,0 +1,59 @@
+{
+  "name": "react-helloworld-tryout",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "@testing-library/jest-dom": "^4.2.4",
+    "@testing-library/react": "^9.3.2",
+    "@testing-library/user-event": "^7.1.2",
+    "react": "^16.14.0",
+    "react-dom": "^16.14.0",
+    "react-scripts": "4.0.3",
+    "web-vitals": "^1.0.1"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test",
+    "test_coverage": "yarn test -- --coverage",
+    "screenshot": "yarn test",
+    "test:dev": "react-scripts test --maxWorkers=1 --notify --coverage --watchAll=false",
+    "eject": "react-scripts eject",
+    "prettier_file": "prettier --write \"./src/**/*.{js,jsx}\"",
+    "trim": "rm -rf build node_modules *lock*",
+    "re-build": "rm -rf build node_modules && yarn install && yarn build",
+    "gitSync": "git fetch --all && git pull",
+    "gitUpdate": "yarn gitSync && git add . && git commit -m\"update react-helloworld-tryout,\" && git push",
+    "dev": "yarn --dev && set HTTPS=true&&yarn start",
+    "http": "serve -s build",
+    "lint": "eslint -c ./.eslintrc.js src --ignore-pattern src/tests --ignore-pattern *.test.js --max-warnings 5 --fix",
+    "lint_init": "eslint --init",
+    "docker_rebuild": "docker compose up -d --build && docker compose logs -f ",
+    "into_docker": "docker compose exec -it react /bin/bash"
+  },
+  "eslintConfig": {
+    "extends": [
+      "react-app",
+      "react-app/jest"
+    ],
+    "rules": {
+      "no-unused-vars": "off"
+    }
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  },
+  "devDependencies": {
+    "prettier": "latest",
+    "puppeteer": "latest"
+  }
+}

COMP3322A-Lab-7-React/docs/screenshot.webm

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:187e062337ac1fa956dff3fc731a9073472543ae30ab704f2d3ae366a0e6c737
+size 461141

COMP3322A-Lab-7-React/lab7_materials/lab7_materials/App.js

@@ -0,0 +1,128 @@
+import React from "react";
+
+class LoginButton extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleClick = this.handleClick.bind(this);
+    this.checkValid = this.checkValid.bind(this);
+  }
+
+  checkValid() {
+    let item = userDB.find((item) => {
+      return item.username == this.props.username && item.password == this.props.password;
+    });
+    if (item != undefined) return true;
+    else return false;
+  }
+
+  // step 4.2
+  handleClick() {}
+
+  render() {
+    return <button onClick={() => this.handleClick()}>Login</button>;
+  }
+}
+
+class Contents extends React.Component {
+  constructor(props) {
+    super(props);
+    this.state = {
+      topics: topicsDB,
+    };
+    this.handleTopicsChange = this.handleTopicsChange.bind(this);
+  }
+
+  // step 7
+  handleTopicsChange(option) {}
+
+  render() {
+    const topics = this.state.topics;
+    return (
+      <div id="contents">
+        <DropDownList handleTopicsChange={this.handleTopicsChange} />
+        {
+          // step 5
+        }
+      </div>
+    );
+  }
+}
+
+function DropDownList(props) {
+  return (
+    <div>
+      <b>Choose one section: </b>
+
+      {/* Step 6 */}
+    </div>
+  );
+}
+
+class Lab7App extends React.Component {
+  constructor(props) {
+    super(props);
+    this.state = {
+      isLogin: false,
+      loginName: "",
+      inputUserName: "",
+      inputUserPswd: "",
+    };
+    this.handleInputChange = this.handleInputChange.bind(this);
+    this.handleStatusChange = this.handleStatusChange.bind(this);
+  }
+
+  // step 3
+  handleInputChange(event) {
+    let target = event.target;
+    let name = target.name;
+    let value = target.value;
+    this.setState({ [name]: value });
+  }
+
+  handleStatusChange(newStatus, loginName) {
+    this.setState({ isLogin: newStatus, loginName: loginName });
+  }
+
+  render() {
+    if (!this.state.isLogin) {
+      return (
+        <div>
+          <p>Fill in username and password and click the button to log in</p>
+          <input type="text" name="inputUserName" placeholder="username" value={this.state.inputUserName} onChange={(e) => this.handleInputChange(e)} />
+
+          <input type="password" name="inputUserPswd" placeholder="password" value={this.state.inputUserPswd} onChange={(e) => this.handleInputChange(e)} />
+
+          {/* step 4.1  Render LoginButton */}
+        </div>
+      );
+    } else {
+      return (
+        <div>
+          <p>Welcome {this.state.loginName}!</p>
+          <button>Logout</button> {/* step 4.3 */}
+          <Contents />
+        </div>
+      );
+    }
+  }
+}
+
+const userDB = [
+  { username: "Alex", password: "123" },
+  { username: "Bob", password: "231" },
+  { username: "Jack", password: "321" },
+];
+
+const topicsDB = [
+  { section: "section-1", topic: "WWW" },
+  { section: "section-1", topic: "HTML" },
+  { section: "section-1", topic: "CSS" },
+  { section: "section-2", topic: "JaveScript" },
+  { section: "section-2", topic: "NodeJS" },
+  { section: "section-2", topic: "MongoDB" },
+  { section: "section-3", topic: "JQuery" },
+  { section: "section-3", topic: "Vue" },
+  { section: "section-3", topic: "React" },
+];
+
+export default Lab7App;

COMP3322A-Lab-7-React/lab7_materials/lab7_materials/index.css

@@ -0,0 +1,23 @@
+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+code {
+  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
+    monospace;
+}
+
+#root{
+  text-align: center;
+}
+
+#contents{
+  text-align: left;
+  margin-left: 40%;
+  margin-top: 2em;
+}

COMP3322A-Lab-7-React/lab7_materials/lab7_materials/index.js

@@ -0,0 +1,17 @@
+import React from 'react';
+import ReactDOM from 'react-dom/client';
+import './index.css';
+import Lab7App from './App';
+import reportWebVitals from './reportWebVitals';
+
+const root = ReactDOM.createRoot(document.getElementById('root'));
+root.render(
+  <React.StrictMode>
+    <Lab7App />
+  </React.StrictMode>
+);
+
+// If you want to start measuring performance in your app, pass a function
+// to log results (for example: reportWebVitals(console.log))
+// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
+reportWebVitals();

COMP3322A-Lab-7-React/package.json

@@ -0,0 +1,30 @@
+{
+  "name": "comp3322a-lab6",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "directories": {
+    "doc": "docs",
+    "test": "test"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "into_docker": "docker compose exec -it webdev bash",
+    "docker_rebuild": "docker compose up --build -d",
+    "gitUpdate": "git add . && git commit -am \"update COMP3322A-Lab-7-React,\" && git push"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/louiscklaw/COMP3322A-lab6.git"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/louiscklaw/COMP3322A-lab6/issues"
+  },
+  "homepage": "https://github.com/louiscklaw/COMP3322A-lab6#readme",
+  "dependencies": {
+    "mongodb": "^4.11.0"
+  }
+}

COMP3322A-Lab-8-MERN/build_delivery.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+pushd src
+  rm -rf **/node_modules
+popd
+
+rm -rf source.zip delivery.zip
+
+set -ex
+
+mkdir -p delivery/webservice
+mkdir -p delivery/myreactapp
+
+cp src/webservice/app.js delivery/webservice/app.js
+cp src/myreactapp/src/App.js delivery/myreactapp/App.js
+
+
+7za a -tzip delivery.zip delivery/
+
+7za a -tzip -ppassword source.zip src/

COMP3322A-Lab-8-MERN/package.json

@@ -0,0 +1,30 @@
+{
+  "name": "comp3322a-lab6",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "directories": {
+    "doc": "docs",
+    "test": "test"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "into_docker": "docker compose exec -it webdev bash",
+    "docker_rebuild": "docker compose up --build -d",
+    "gitUpdate": "git add . && git commit -am \"update COMP3322A-Lab-8-MERN,\" && git push"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/louiscklaw/COMP3322A-lab6.git"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/louiscklaw/COMP3322A-lab6/issues"
+  },
+  "homepage": "https://github.com/louiscklaw/COMP3322A-lab6#readme",
+  "dependencies": {
+    "mongodb": "^4.11.0"
+  }
+}

COMP3322A-Lab-8-MERN/references/lab6_sample_solution/app.js

@@ -0,0 +1,49 @@
+var createError = require('http-errors');
+var express = require('express');
+var path = require('path');
+var logger = require('morgan');
+
+// use lab6-db
+var monk = require('monk');
+var db = monk('127.0.0.1:27017/lab6-db');
+
+var indexRouter = require('./routes/index');
+var usersRouter = require('./routes/users');
+
+var app = express();
+
+// view engine setup
+app.set('views', path.join(__dirname, 'views'));
+app.set('view engine', 'pug');
+
+app.use(logger('dev'));
+app.use(express.json());
+app.use(express.urlencoded({ extended: false }));
+app.use(express.static(path.join(__dirname, 'public')));
+
+// Make our db accessible to routers 
+app.use(function(req,res,next){
+    req.db = db; 
+	next();
+});
+
+app.use('/', indexRouter);
+app.use('/users', usersRouter);
+
+// for requests not matching the above routes, create 404 error and forward to error handler
+app.use(function(req, res, next) {
+    next(createError(404));
+});
+
+// error handler
+app.use(function(err, req, res, next) {
+  // set locals, only providing error in development environment
+    res.locals.message = err.message;
+    res.locals.error = req.app.get('env') === 'development' ? err : {};
+
+    // render the error page
+    res.status(err.status || 500);
+    res.render('error');
+});
+
+module.exports = app;

COMP3322A-Lab-8-MERN/references/lab6_sample_solution/bin/www

@@ -0,0 +1,90 @@
+#!/usr/bin/env node
+
+/**
+ * Module dependencies.
+ */
+
+var app = require('../app');
+var debug = require('debug')('lab6:server');
+var http = require('http');
+
+/**
+ * Get port from environment and store in Express.
+ */
+
+var port = normalizePort(process.env.PORT || '3000');
+app.set('port', port);
+
+/**
+ * Create HTTP server.
+ */
+
+var server = http.createServer(app);
+
+/**
+ * Listen on provided port, on all network interfaces.
+ */
+
+server.listen(port);
+server.on('error', onError);
+server.on('listening', onListening);
+
+/**
+ * Normalize a port into a number, string, or false.
+ */
+
+function normalizePort(val) {
+  var port = parseInt(val, 10);
+
+  if (isNaN(port)) {
+    // named pipe
+    return val;
+  }
+
+  if (port >= 0) {
+    // port number
+    return port;
+  }
+
+  return false;
+}
+
+/**
+ * Event listener for HTTP server "error" event.
+ */
+
+function onError(error) {
+  if (error.syscall !== 'listen') {
+    throw error;
+  }
+
+  var bind = typeof port === 'string'
+    ? 'Pipe ' + port
+    : 'Port ' + port;
+
+  // handle specific listen errors with friendly messages
+  switch (error.code) {
+    case 'EACCES':
+      console.error(bind + ' requires elevated privileges');
+      process.exit(1);
+      break;
+    case 'EADDRINUSE':
+      console.error(bind + ' is already in use');
+      process.exit(1);
+      break;
+    default:
+      throw error;
+  }
+}
+
+/**
+ * Event listener for HTTP server "listening" event.
+ */
+
+function onListening() {
+  var addr = server.address();
+  var bind = typeof addr === 'string'
+    ? 'pipe ' + addr
+    : 'port ' + addr.port;
+  debug('Listening on ' + bind);
+}

COMP3322A-Lab-8-MERN/references/lab6_sample_solution/generate_db.js

@@ -0,0 +1,18 @@
+var conn = new Mongo();
+var db = conn.getDB("lab6-db");
+
+var topic_name = ["www", "html", "css", "javascript", "nodejs", "jquery"];
+var topic_status = ["no", "no", "no", "no", "no", "no"];
+var topic_hour = [2, 4, 4, 6, 10, 6];
+
+db.topicList.remove({});
+
+for(let i = 0; i < topic_name.length; i++){
+    db.topicList.insert(
+        {
+            'name': topic_name[i],
+            'hour': topic_hour[i],
+            'status': topic_status[i]
+        }
+    )
+}

COMP3322A-Lab-8-MERN/references/lab6_sample_solution/package.json

@@ -0,0 +1,18 @@
+{
+  "name": "lab6",
+  "version": "0.0.0",
+  "private": true,
+  "scripts": {
+    "start": "node ./bin/www"
+  },
+  "dependencies": {
+    "cookie-parser": "~1.4.4",
+    "debug": "~2.6.9",
+    "express": "~4.16.1",
+    "http-errors": "~1.6.3",
+    "jade": "~1.11.0",
+    "monk": "^7.3.4",
+    "morgan": "~1.9.1",
+    "pug": "^3.0.2"
+  }
+}

COMP3322A-Lab-8-MERN/references/lab6_sample_solution/public/javascripts/externalJS.js

@@ -0,0 +1,75 @@
+$(document).ready(function() {
+    showAllTopics()
+});
+
+
+// step 7.2
+function showAllTopics(){
+    var table_content = `
+        <tr><th>Topic Name</th>
+        <th>Study Hour</th>
+        <th>Chosen Status</th>
+        <th>Operation</th></tr>
+    `
+
+    $.getJSON('/users/get_table').then((docs)=>{
+        $.each(docs, function(i, row){
+            if(row.status == 'yes'){
+                row_class = "highlight"
+                row_operation = "remove"
+            }else{
+                row_class = ""
+                row_operation = "add"
+            }
+
+            table_content += `
+                <tr class=${row_class}><td>${row.name}</td>
+                <td>${row.hour}</td>
+                <td>${row.status}</td>
+                <td><a href="#" class="operation" rel="${row._id}">${row_operation}</a></td></tr>
+            `
+        })
+        $('#plan_table').html(table_content)
+    })
+}
+
+$("#plan_table").on('click', '.operation', operateTopic)
+
+// step 8.2
+function operateTopic(event){
+    event.preventDefault()
+    
+    var id = $(this).attr('rel')
+    var op = $(this).html()
+
+    $.ajax({
+        type: 'PUT',
+        url: '/users/update_status',
+        data: {
+            _id: id,
+            op: op
+        }        
+    }).done(function(msg){
+        alert(msg);
+        showAllTopics()
+    });
+}
+
+$("#submit_delete").on('click', deleteTopic)
+
+
+// step 9.2
+function deleteTopic(event){
+    event.preventDefault()
+
+    var topic_name = $("#input_name").val()
+    if($(`td:contains("${topic_name}")`).length != 0){
+        $.ajax({
+            type: 'DELETE',
+            url: '/users/delete_topic/' + topic_name
+        }).done(function(msg){
+            alert(msg);
+            showAllTopics();
+        });
+    }else alert("No such topic in the table!")
+}

COMP3322A-Lab-8-MERN/references/lab6_sample_solution/public/stylesheets/style.css

@@ -0,0 +1,159 @@
+body {
+    margin: 0;
+    background: #163a50;
+    font: 300 100%/120% "Tahoma", Arial, Helvetica, sans-serif;
+}
+
+header {
+    overflow: hidden;
+}
+
+header, nav, .contents, footer {
+    box-sizing: border-box;
+    max-width: 1080px;
+    margin-left: auto;
+    margin-right: auto;
+}
+
+header, nav, footer {
+    background: #0f2736;
+}
+
+h1, h2, h3, h4 {
+    font-weight: bold
+}
+
+.contents {
+    padding: 1em 2em 2.5em 2em;
+}
+
+/* increase line spacing for main title */
+h1 {
+    line-height: 120%;
+    margin-top: 0.5em;
+    float: left;
+    width: auto;
+}
+
+header img {
+    float: left;
+}
+
+/* change color and remove underline for links */
+footer a {
+    color: inherit;
+    text-decoration: none;
+}
+
+#plan_table a {
+    color: rgb(0, 47, 255);
+}
+
+/* size and margin for logo image */
+header img {
+    max-width: 100%;
+    max-height: 100%;
+    margin: 0.5em;
+}
+
+form {
+    padding: 1em 2em;
+}
+
+input[type="number"] {
+    min-width: 4em;
+}
+
+/* style for footer */
+footer {
+    margin: auto;
+    text-align: center;
+}
+
+footer div {
+    padding: 1em;
+}
+
+.contents h2 {
+    text-align: center;
+}
+
+button {
+    margin-top: 1em;
+    margin-bottom: 1em;
+    width: 5em;
+    height: 2em;
+}
+
+input {
+    width: 5em;
+    height: 1.6em;
+    margin-right: 2em;
+}
+
+#delete_div p{
+    color: gray;
+}
+
+
+header *, nav * {
+    color: #FFFFFF;
+}
+
+.contents {
+    background: #FFFFFF;
+}
+
+.subtitle {
+    font-size: 0.6em;
+    font-weight: normal;
+}
+
+@media screen and (max-width: 1080px) {
+    header,nav {
+        overflow: hidden;
+    }
+}
+
+@media screen and (max-width: 720px) {
+    header img {
+        display: none;
+    }
+    header h1 {
+        padding: 0 0.5em;
+    }
+    nav div {
+        width: 100%;
+    }
+}
+
+.contents {
+    text-align: center;
+}
+
+.contents li{
+    text-align: left;
+}
+
+/* style for the table */
+table, th, td {
+    border: 1.8px solid black;
+    border-collapse: collapse;
+    text-align: center;
+    vertical-align: center;
+    margin: auto;
+    width: 400px;
+    height: 50px;
+}
+
+th {
+    background-color: rgb(178, 177, 177);
+}
+
+.highlight {
+    background-color: rgb(255, 0, 0);
+}
+
+#plan_table {
+    margin-bottom: 2em;
+}

COMP3322A-Lab-8-MERN/references/lab6_sample_solution/routes/index.js

@@ -0,0 +1,9 @@
+var express = require('express');
+var router = express.Router();
+
+/* GET home page. */
+router.get('/', function(req, res, next) {
+  res.render('index', { title: 'Express' });
+});
+
+module.exports = router;

COMP3322A-Lab-8-MERN/references/lab6_sample_solution/views/error.pug

@@ -0,0 +1,6 @@
+extends layout
+
+block content
+  h1= message
+  h2= error.status
+  pre #{error.stack}

COMP3322A-Lab-8-MERN/references/lab6_sample_solution/views/index.pug

@@ -0,0 +1,26 @@
+extends layout
+
+block content 
+    header
+        img(src='/images/logo.png' width="128" height="128")
+        h1 Course Study Plan
+            br 
+            span(class="subtitle") COMP3322A Modern Technologies on World Wide Web
+
+    section(class="contents")
+        h2 Instruction
+        ul
+            li Add/Remove a topic to/from your study plan by clicking the respective operation.
+            li Delete a topic permanently by typing its name into the input box and clicking the "Delete" button.
+        hr
+
+        h2 Topic Plan
+        div
+            table#plan_table
+        div#delete_div
+            p Fill in a topic name to delete it from the table permanently:
+            input#input_name(type='text', placeholder='topic name')
+            button#submit_delete Delete
+
+    footer
+        div <a href="#">Back to top</a>

COMP3322A-Lab-8-MERN/references/lab6_sample_solution/views/layout.pug

@@ -0,0 +1,10 @@
+doctype html
+html
+    head
+        title= "lab6"
+        link(rel='stylesheet', href='/stylesheets/style.css')
+        meta(name="viewport" content="width=device-width, initial-scale=1.0")
+    body
+        block content
+        script(src='https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js') 
+        script(src='/javascripts/externalJS.js')

COMP3322A-Lab-8-MERN/src/README.md

@@ -0,0 +1,23 @@
+### LAB8
+
+### frontend
+
+http://localhost:3000/helloworld
+
+### backend
+
+http://localhost:3001/helloworld
+
+### demo
+
+https://youtube.com/shorts/GKkpaZy5H1A
+
+### delivery
+
+delivery.zip -> need to hand-in
+source.zip -> password(password) -> source for your reference
+
+### reply
+
+delivery.zip -> need to hand-in
+source.zip -> password(password) -> source for your reference

COMP3322A-Lab-8-MERN/src/create_frontend.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+set -ex
+
+
+npx create-react-app myreactapp
+pushd myreactapp 
+  npm install jquery
+  npm start

COMP3322A-Lab-8-MERN/src/docker-compose.yml

@@ -0,0 +1,48 @@
+version: "3.1"
+
+services:
+  mongo:
+    image: mongo
+    restart: always
+    ports:
+      - 127.0.0.1:27017:27017
+
+  mongo-express:
+    image: mongo-express
+    restart: always
+    ports:
+      - 127.0.0.1:8081:8081
+
+  webservice:
+    image: node:14-buster
+    # user: 1000:1000
+    volumes:
+      - ./webservice:/app
+      - webservice_node_modules:/app/node_modules
+    working_dir: /app
+    ports:
+      - 127.0.0.1:3001:3001
+      - 127.0.0.1:9229:9229
+    environment:
+      # - NODE_OPTIONS=--inspect=0.0.0.0:9229
+      - HELLO=WORLD
+    command: sleep infinity
+
+  myreactapp:
+    image: node:14-buster
+    # user: 1000:1000
+    volumes:
+      - ./myreactapp:/app
+      - myreactapp_node_modules:/app/node_modules
+    working_dir: /app
+    ports:
+      - 127.0.0.1:3000:3000
+      # - 127.0.0.1:9229:9229
+    environment:
+      # - NODE_OPTIONS=--inspect=0.0.0.0:9229
+      - HELLO=WORLD
+    command: sleep infinity
+
+volumes:
+  webservice_node_modules:
+  myreactapp_node_modules:

COMP3322A-Lab-8-MERN/src/myreactapp/.gitignore

@@ -0,0 +1,23 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*

COMP3322A-Lab-8-MERN/src/myreactapp/README.md

@@ -0,0 +1,70 @@
+# Getting Started with Create React App
+
+This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
+
+## Available Scripts
+
+In the project directory, you can run:
+
+### `npm start`
+
+Runs the app in the development mode.\
+Open [http://localhost:3000](http://localhost:3000) to view it in your browser.
+
+The page will reload when you make changes.\
+You may also see any lint errors in the console.
+
+### `npm test`
+
+Launches the test runner in the interactive watch mode.\
+See the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more information.
+
+### `npm run build`
+
+Builds the app for production to the `build` folder.\
+It correctly bundles React in production mode and optimizes the build for the best performance.
+
+The build is minified and the filenames include the hashes.\
+Your app is ready to be deployed!
+
+See the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.
+
+### `npm run eject`
+
+**Note: this is a one-way operation. Once you `eject`, you can't go back!**
+
+If you aren't satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.
+
+Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point you're on your own.
+
+You don't have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldn't feel obligated to use this feature. However we understand that this tool wouldn't be useful if you couldn't customize it when you are ready for it.
+
+## Learn More
+
+You can learn more in the [Create React App documentation](https://facebook.github.io/create-react-app/docs/getting-started).
+
+To learn React, check out the [React documentation](https://reactjs.org/).
+
+### Code Splitting
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/code-splitting](https://facebook.github.io/create-react-app/docs/code-splitting)
+
+### Analyzing the Bundle Size
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size](https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size)
+
+### Making a Progressive Web App
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app](https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app)
+
+### Advanced Configuration
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/advanced-configuration](https://facebook.github.io/create-react-app/docs/advanced-configuration)
+
+### Deployment
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/deployment](https://facebook.github.io/create-react-app/docs/deployment)
+
+### `npm run build` fails to minify
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify](https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify)

COMP3322A-Lab-8-MERN/src/myreactapp/entry.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+set -ex
+
+
+yarn -d
+
+yarn start

COMP3322A-Lab-8-MERN/src/myreactapp/package.json

@@ -0,0 +1,39 @@
+{
+  "name": "myreactapp",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "@testing-library/jest-dom": "^5.16.5",
+    "@testing-library/react": "^13.4.0",
+    "@testing-library/user-event": "^13.5.0",
+    "jquery": "^3.6.1",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "react-scripts": "5.0.1",
+    "web-vitals": "^2.1.4"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test",
+    "eject": "react-scripts eject"
+  },
+  "eslintConfig": {
+    "extends": [
+      "react-app",
+      "react-app/jest"
+    ]
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  }
+}

COMP3322A-Lab-8-MERN/src/myreactapp/public/index.html

@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="theme-color" content="#000000" />
+    <meta
+      name="description"
+      content="Web site created using create-react-app"
+    />
+    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
+    <!--
+      manifest.json provides metadata used when your web app is installed on a
+      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
+    <!--
+      Notice the use of %PUBLIC_URL% in the tags above.
+      It will be replaced with the URL of the `public` folder during the build.
+      Only files inside the `public` folder can be referenced from the HTML.
+
+      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
+      work correctly both with client-side routing and a non-root public URL.
+      Learn how to configure a non-root public URL by running `npm run build`.
+    -->
+    <title>React App</title>
+  </head>
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+    <div id="root"></div>
+    <!--
+      This HTML file is a template.
+      If you open it directly in the browser, you will see an empty page.
+
+      You can add webfonts, meta tags, or analytics to this file.
+      The build step will place the bundled scripts into the <body> tag.
+
+      To begin the development, run `npm start` or `yarn start`.
+      To create a production bundle, use `npm run build` or `yarn build`.
+    -->
+  </body>
+</html>

COMP3322A-Lab-8-MERN/src/myreactapp/public/manifest.json

@@ -0,0 +1,25 @@
+{
+  "short_name": "React App",
+  "name": "Create React App Sample",
+  "icons": [
+    {
+      "src": "favicon.ico",
+      "sizes": "64x64 32x32 24x24 16x16",
+      "type": "image/x-icon"
+    },
+    {
+      "src": "logo192.png",
+      "type": "image/png",
+      "sizes": "192x192"
+    },
+    {
+      "src": "logo512.png",
+      "type": "image/png",
+      "sizes": "512x512"
+    }
+  ],
+  "start_url": ".",
+  "display": "standalone",
+  "theme_color": "#000000",
+  "background_color": "#ffffff"
+}

COMP3322A-Lab-8-MERN/src/myreactapp/public/robots.txt

@@ -0,0 +1,3 @@
+# https://www.robotstxt.org/robotstxt.html
+User-agent: *
+Disallow:

COMP3322A-Lab-8-MERN/src/myreactapp/public/stylesheets/style.js

@@ -0,0 +1,159 @@
+body {
+    margin: 0;
+    background: #163a50;
+    font: 300 100%/120% "Tahoma", Arial, Helvetica, sans-serif;
+}
+
+header {
+    overflow: hidden;
+}
+
+header, nav, .contents, footer {
+    box-sizing: border-box;
+    max-width: 1080px;
+    margin-left: auto;
+    margin-right: auto;
+}
+
+header, nav, footer {
+    background: #0f2736;
+}
+
+h1, h2, h3, h4 {
+    font-weight: bold
+}
+
+.contents {
+    padding: 1em 2em 2.5em 2em;
+}
+
+/* increase line spacing for main title */
+h1 {
+    line-height: 120%;
+    margin-top: 0.5em;
+    float: left;
+    width: auto;
+}
+
+header img {
+    float: left;
+}
+
+/* change color and remove underline for links */
+footer a {
+    color: inherit;
+    text-decoration: none;
+}
+
+#plan_table a {
+    color: rgb(0, 47, 255);
+}
+
+/* size and margin for logo image */
+header img {
+    max-width: 100%;
+    max-height: 100%;
+    margin: 0.5em;
+}
+
+form {
+    padding: 1em 2em;
+}
+
+input[type="number"] {
+    min-width: 4em;
+}
+
+/* style for footer */
+footer {
+    margin: auto;
+    text-align: center;
+}
+
+footer div {
+    padding: 1em;
+}
+
+.contents h2 {
+    text-align: center;
+}
+
+button {
+    margin-top: 1em;
+    margin-bottom: 1em;
+    width: 5em;
+    height: 2em;
+}
+
+input {
+    width: 5em;
+    height: 1.6em;
+    margin-right: 2em;
+}
+
+#delete_div p{
+    color: gray;
+}
+
+
+header *, nav * {
+    color: #FFFFFF;
+}
+
+.contents {
+    background: #FFFFFF;
+}
+
+.subtitle {
+    font-size: 0.6em;
+    font-weight: normal;
+}
+
+@media screen and (max-width: 1080px) {
+    header,nav {
+        overflow: hidden;
+    }
+}
+
+@media screen and (max-width: 720px) {
+    header img {
+        display: none;
+    }
+    header h1 {
+        padding: 0 0.5em;
+    }
+    nav div {
+        width: 100%;
+    }
+}
+
+.contents {
+    text-align: center;
+}
+
+.contents li{
+    text-align: left;
+}
+
+/* style for the table */
+table, th, td {
+    border: 1.8px solid black;
+    border-collapse: collapse;
+    text-align: center;
+    vertical-align: center;
+    margin: auto;
+    width: 400px;
+    height: 50px;
+}
+
+th {
+    background-color: rgb(178, 177, 177);
+}
+
+.highlight {
+    background-color: rgb(255, 0, 0);
+}
+
+#plan_table {
+    margin-bottom: 2em;
+}

COMP3322A-Lab-8-MERN/src/myreactapp/src/App.css

@@ -0,0 +1,38 @@
+.App {
+  text-align: center;
+}
+
+.App-logo {
+  height: 40vmin;
+  pointer-events: none;
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  .App-logo {
+    animation: App-logo-spin infinite 20s linear;
+  }
+}
+
+.App-header {
+  background-color: #282c34;
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  font-size: calc(10px + 2vmin);
+  color: white;
+}
+
+.App-link {
+  color: #61dafb;
+}
+
+@keyframes App-logo-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}

COMP3322A-Lab-8-MERN/src/myreactapp/src/App.js

@@ -0,0 +1,226 @@
+import React from "react";
+import ReactDOM from "react-dom/client";
+
+import "./style.css";
+import logoImg from "./logo.png";
+import $ from "jquery";
+
+// Static React component defined as function
+function Header() {
+  return (
+    <header>
+      <img src={logoImg} alt="logo" width="128" height="128" />
+      <h1>
+        Course Study Plan
+        <br />
+        <span className="subtitle">COMP3322A Modern Technologies on World Wide Web</span>
+      </h1>
+    </header>
+  );
+}
+
+function Instruction() {
+  return (
+    <React.Fragment>
+      <h2>Instruction</h2>
+      <ul>
+        <li>Add/Remove a topic to/from your study plan by clicking the respective operation.</li>
+        <li>Delete a topic permanently by typing its name into the input box and clicking the "Delete" button.</li>
+      </ul>
+    </React.Fragment>
+  );
+}
+
+function PlanTableRow(props) {
+  // TableRow receives five attributes as its props:
+  //   1. _id: the _id of the topic from MongoDB, which we will use to call “operateTopic”.
+  //   2. name: the name of the topic.
+  //   3. hour: the hours of the topic
+  //   4. status: the selection status of the topic
+  //   5. operateTopic: a function with two arguments, _id and op, that is to be called when the user clicks the “add” or “remove” action links, depending on the status of this topic.
+
+  let row_class, row_operation;
+  let { _id, name, hour, status, operateTopic } = props;
+
+  if (props.status == "yes") {
+    row_class = "highlight";
+    row_operation = "remove";
+  } else {
+    row_class = "";
+    row_operation = "add";
+  }
+
+  // Step 11: Complete the function PlanTableRow
+
+  return (
+    <>
+      <tr class={row_class}>
+        <td>{name}</td>
+        <td>{hour}</td>
+        <td>{status}</td>
+        <td>
+          <a href="#" onClick={(e) => operateTopic(_id, row_operation)}>
+            {row_operation}
+          </a>
+        </td>
+      </tr>
+    </>
+  );
+}
+
+function PlanTable(props) {
+  return (
+    <table id="plan_table">
+      <tr>
+        <th>Topic Name</th>
+        <th>Study Hour</th>
+        <th>Chosen Status</th>
+        <th>Operation</th>
+      </tr>
+      {props.topicInfo ? (
+        props.topicInfo.map((row) => (
+          <PlanTableRow
+            // Step 12: fill in the missing attributes to PlanTableRow
+
+            // key is a special attribute React uses to identify list components
+            key={row._id}
+            // passing as parameters to child component
+            _id={row._id}
+            name={row.name}
+            hour={row.hour}
+            status={row.status}
+            operateTopic={props.operateTopic}
+          />
+        ))
+      ) : (
+        <>
+          <tr style={{ textAlign: "center" }}>
+            <td colSpan={4}>fetching ...</td>
+          </tr>
+        </>
+      )}
+    </table>
+  );
+}
+
+class DeleteForm extends React.Component {
+  constructor(props) {
+    super(props);
+
+    this.state = {
+      inputTopicName: "",
+    };
+  }
+
+  handleInputChange(event) {
+    this.setState({ inputTopicName: event.target.value });
+  }
+
+  deleteTopic() {
+    // Step 13: Complete the function deleteTopic
+
+    // calling parent function to delete topic
+    this.props.deleteTopic(this.state.inputTopicName);
+  }
+
+  render() {
+    return (
+      <div id="delete_div">
+        {JSON.stringify(this.state.test)}
+        <p>Fill in a topic name to delete it from the table permanently:</p>
+        <input id="input_name" placeholder="topic name" value={this.state.inputTopicName} onChange={this.handleInputChange.bind(this)} />
+        <button onClick={this.deleteTopic.bind(this)}>Delete</button>
+      </div>
+    );
+  }
+}
+
+function Footer() {
+  return (
+    <footer>
+      <div>
+        <a href="#">Back to top</a>
+      </div>
+    </footer>
+  );
+}
+
+class App extends React.Component {
+  constructor(props) {
+    super(props);
+
+    // Initialize the state of “PlanPage” with the key “topicInfo” and an empty array as the value.
+    this.state = { topicInfo: "" };
+  }
+
+  componentDidMount() {
+    // Step 10: Invoke updateTopics() upon page loading
+
+    // initial fetch topic at screen load
+    this.updateTopics();
+  }
+
+  updateTopics() {
+    // Step 9: Implement the controller function
+
+    // alert("we need to send an AJAX GET request for http://localhost:3001/users/get_table");
+    fetch("//localhost:3001/users/get_table")
+      .then((res) => res.json())
+      .then((res_json) => {
+        this.setState({ ...this.state, topicInfo: res_json });
+        console.log(res_json);
+      });
+  }
+
+  operateTopic(_id, op) {
+    // Step 9: Implement the controller function
+
+    // alert("we send a PUT request for http://localhost:3001/users/update_status with the _id and op of the operation");
+    fetch("//localhost:3001/users/update_status", {
+      method: "PUT",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({ _id, op }),
+    })
+      .then((res) => res.json())
+      .then((res_json) => {
+        console.log(res_json);
+
+        // update table after operation
+        this.updateTopics();
+      });
+  }
+
+  deleteTopic(topicName) {
+    // Step 9: Implement the controller function
+
+    // alert("we need to send an AJAX DELETE request for http://localhost:3001/users/delete_topic/topicName");
+    fetch(`//localhost:3001/users/delete_topic/${topicName}`, {
+      method: "DELETE",
+    })
+      .then((res) => res.json())
+      .then((res_json) => {
+        console.log(res_json);
+
+        // update table after operation
+        this.updateTopics();
+      });
+  }
+
+  render() {
+    return (
+      <>
+        <Header />
+        <section className="contents">
+          <Instruction />
+          <hr />
+          <h2>Topic Plan</h2>
+          <PlanTable topicInfo={this.state.topicInfo} operateTopic={this.operateTopic.bind(this)} />
+          <DeleteForm deleteTopic={this.deleteTopic.bind(this)} />
+        </section>
+        <Footer />
+      </>
+    );
+  }
+}
+
+export default App;

COMP3322A-Lab-8-MERN/src/myreactapp/src/App.test.js

@@ -0,0 +1,8 @@
+import { render, screen } from '@testing-library/react';
+import App from './App';
+
+test('renders learn react link', () => {
+  render(<App />);
+  const linkElement = screen.getByText(/learn react/i);
+  expect(linkElement).toBeInTheDocument();
+});

COMP3322A-Lab-8-MERN/src/myreactapp/src/index.css

@@ -0,0 +1,13 @@
+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+code {
+  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
+    monospace;
+}

COMP3322A-Lab-8-MERN/src/myreactapp/src/index.js

@@ -0,0 +1,17 @@
+import React from 'react';
+import ReactDOM from 'react-dom/client';
+import './index.css';
+import App from './App';
+import reportWebVitals from './reportWebVitals';
+
+const root = ReactDOM.createRoot(document.getElementById('root'));
+root.render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>
+);
+
+// If you want to start measuring performance in your app, pass a function
+// to log results (for example: reportWebVitals(console.log))
+// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
+reportWebVitals();