Add login page and JS validation #53

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LoicBelmond wants to merge 15 commits into yenchiah:master from LoicBelmond:feature/user-authentication

README.md

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+    # Project Website Template — Auth & Database Integrated
     # project-website-template
     Demo: https://yenchiah.github.io/project-website-template/
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api.js

Empty file.

db-config.js

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+    // WARNING: Demo only. Do NOT store real credentials in client-side code.
+    const db = {
+      host: "localhost",
+      username: "admin",
+      password: "password123",
+    };
+    function connectDB() {
+      console.log("Connected to DB at " + db.host);
+      return true; // allow callers to assert success
+    }

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+    <!DOCTYPE html>
+    <html lang="en">
+    <head>
+      <meta charset="UTF-8">
+      <meta name="viewport" content="width=device-width, initial-scale=1.0">
+      <title>Login Page</title>
+    </head>
+    <body>
+      <h2>User Login</h2>
+      <form id="loginForm">
+        <label for="username">Username:</label>
+        <input type="text" id="username" name="username" required><br><br>
+        <label for="password">Password:</label>
+        <input type="password" id="password" name="password" required><br><br>
+        <button type="submit">Login</button>
+      </form>
+      <script src="login.js"></script>
+    </body>
+    </html>

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+    document.getElementById("loginForm").addEventListener("submit", function(event) {
+      event.preventDefault(); // prevent page reload
+      const username = document.getElementById("username").value.trim();
+      const password = document.getElementById("password").value.trim();
+      if (username === "" || password === "") {
+        alert("Please fill in both fields.");
+      } else {
+        alert("Login successful (demo only).");
+      }
+    });

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