Added auto-loading of previous responses

assets/js/main.js

@@ -74,20 +74,37 @@ document.addEventListener("DOMContentLoaded", function () {
 
     // Prepopulate the form if returning user
     function prepopulateForm() {
-        const savedData = JSON.parse(localStorage.getItem("assessmentData"));
-        if (savedData) {
-            Object.keys(savedData).forEach(key => {
-                const field = form.elements[key];
-                if (field) {
-                    if (field.type === "checkbox") {
-                        field.checked = savedData[key];
-                    } else {
-                        field.value = savedData[key];
-                    }
-                }
-            });
-        }
-    }
+		fetch("../load-responses.php")
+		.then(response => response.json())
+		.then(data => {
+			if (data.error) {
+				console.warn("Error loading responses:", data.error);
+				return;
+			}
+	
+			Object.keys(data).forEach(key => {
+				let field = document.querySelector(`[name="${key}"]`);
+				if (field) {
+					if (field.type === "checkbox") {
+						let values = JSON.parse(data[key] || "[]");
+						values.forEach(value => {
+							let checkbox = document.querySelector(`[name="${key}"][value="${value}"]`);
+							if (checkbox) checkbox.checked = true;
+						});
+					} else {
+						field.value = data[key];
+					}
+				}
+			});
+	
+			console.log("Form preloaded successfully.");
+		})
+		.catch(error => console.error("Failed to load form responses:", error));
+	}
+	
+	// Run prepopulation after DOM is loaded
+	document.addEventListener("DOMContentLoaded", prepopulateForm);
+	
 
     // Save form data to localStorage on change
     form.addEventListener("input", function () {

load-responses.php

@@ -0,0 +1,52 @@
+<?php
+session_start();
+require_once "db.php";
+
+header("Content-Type: application/json");
+
+// Get user token from session or URL
+$userToken = $_SESSION['user_token'] ?? $_GET['token'] ?? null;
+
+if (!$userToken) {
+    http_response_code(403);
+    echo json_encode(["error" => "Unauthorized access."]);
+    exit;
+}
+
+// Connect to the database
+$conn = new mysqli(DB_HOST, DB_USER, DB_PASS, DB_NAME);
+if ($conn->connect_error) {
+    http_response_code(500);
+    echo json_encode(["error" => "Database connection failed."]);
+    exit;
+}
+
+// Fetch user ID using token
+$stmt = $conn->prepare("SELECT id FROM users WHERE auth_token = ?");
+$stmt->bind_param("s", $userToken);
+$stmt->execute();
+$result = $stmt->get_result();
+$user = $result->fetch_assoc();
+if (!$user) {
+    http_response_code(403);
+    echo json_encode(["error" => "Invalid authentication token."]);
+    exit;
+}
+$userId = $user['id'];
+
+// Fetch saved responses
+$stmt = $conn->prepare("SELECT * FROM questionnaire_responses WHERE user_id = ?");
+$stmt->bind_param("i", $userId);
+$stmt->execute();
+$result = $stmt->get_result();
+$response = $result->fetch_assoc();
+
+if ($response) {
+    echo json_encode($response);
+} else {
+    echo json_encode(["message" => "No previous responses found."]);
+}
+
+$conn->close();
+exit;
+?>