Added improvements

.gitignore

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+node_modules/
+target/
+dist/
+vendor
+*.class
+*.log
+.DS_Store
+Thumbs.db

index.php

@@ -1,3 +1,2 @@
 <?php
-
-?>
+// Silence is golden.

js/qsm-custom-addon-admin.js

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+(function ($) {
+
+}(jQuery));

js/qsm-custom-addon-front.js

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+(function ($) {
+
+}(jQuery));

php/functions.php

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+<?php
+
+if (!defined('ABSPATH')) {
+	exit;
+}
+if (!class_exists('AddonFunctions_XXXX')) {
+
+	class AddonFunctions_XXXX {
+
+		public function __construct() {
+			/**
+			 * Add Hooks & Functions.
+			 */
+			//add_action('admin_enqueue_scripts', array(&$this, 'admin_enqueue_scripts'), 9999);
+			//add_action('wp_enqueue_scripts', array(&$this, 'wp_enqueue_scripts'), 9999);
+			//add_action('admin_init', 'qsm_addon_XXXX_register_settings_tabs');
+			//add_action('admin_init', 'qsm_addon_XXXX_register_quiz_settings_tabs');
+		}
+
+		public function admin_enqueue_scripts() {
+			wp_enqueue_script('qsm-custom-addon-admin-js', QSM_XXXX_ADDON_JS_URL . '/qsm-custom-addon-admin.js', array('jquery'), QSM_XXXX_ADDON_VERSION, true);
+			wp_enqueue_style('qsm-custom-addon-admin-css', QSM_XXXX_ADDON_CSS_URL . '/qsm-custom-addon-admin.css');
+		}
+
+		public function wp_enqueue_scripts() {
+			wp_enqueue_script('qsm-custom-addon-front-js', QSM_XXXX_ADDON_JS_URL . '/qsm-custom-addon-front.js', array('jquery'), QSM_XXXX_ADDON_VERSION, true);
+			wp_enqueue_style('qsm-custom-addon-front-css', QSM_XXXX_ADDON_CSS_URL . '/qsm-custom-addon-front.css');
+		}
+
+		function qsm_get_quiz_url($quiz_id = 0) {
+			$permalink = '';
+			if (!empty($quiz_id) && $quiz_id > 0) {
+				$args = array(
+					'posts_per_page' => 1,
+					'post_type' => 'qsm_quiz',
+					'meta_query' => array(
+						array(
+							'key' => 'quiz_id',
+							'value' => $quiz_id,
+							'compare' => '=',
+						),
+					),
+				);
+				$the_query = new WP_Query($args);
+				if ($the_query->have_posts()) {
+					while ($the_query->have_posts()) {
+						$the_query->the_post();
+						$permalink = get_the_permalink(get_the_ID());
+					}
+					wp_reset_postdata();
+				}
+			}
+			return $permalink;
+		}
+
+	}
+
+}
+global $AddonFunctions_XXXX;
+$AddonFunctions_XXXX = new AddonFunctions_XXXX();

php/index.php

@@ -1,3 +1,2 @@
 <?php
-
-?>
+// Silence is golden.

php/qsm-addon-settings.php

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+<?php
+
+if (!defined('ABSPATH'))
+	exit;
+
+/**
+ * Registers your tab in the addon settings page
+ *
+ * @since 1.0.0
+ * @return void
+ */
+function qsm_addon_XXXX_register_addon_settings_tabs() {
+	global $mlwQuizMasterNext;
+	if (!is_null($mlwQuizMasterNext) && !is_null($mlwQuizMasterNext->pluginHelper) && method_exists($mlwQuizMasterNext->pluginHelper, 'register_quiz_settings_tabs')) {
+		$mlwQuizMasterNext->pluginHelper->register_addon_settings_tab("Custom Addon", 'qsm_addon_XXXX_addon_settings_tabs_content');
+	}
+}
+
+/**
+ * Generates the content for your addon settings tab
+ *
+ * @since 1.0.0
+ * @return void
+ */
+function qsm_addon_XXXX_addon_settings_tabs_content() {
+	// Display your addon settings here!
+}

php/qsm-quiz-settings.php

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+<?php
+
+if (!defined('ABSPATH')) {
+	exit;
+}
+
+/**
+ * Registers your tab in the quiz settings page
+ *
+ * @since 1.0.0
+ * @return void
+ */
+function qsm_addon_XXXX_register_quiz_settings_tabs() {
+	global $mlwQuizMasterNext;
+	if (!is_null($mlwQuizMasterNext) && !is_null($mlwQuizMasterNext->pluginHelper) && method_exists($mlwQuizMasterNext->pluginHelper, 'register_quiz_settings_tabs')) {
+		$mlwQuizMasterNext->pluginHelper->register_quiz_settings_tabs("Sendinblue", 'qsm_addon_XXXX_quiz_settings_tabs_content');
+	}
+}
+
+/**
+ * Generates the content for your quiz settings tab
+ *
+ * @since 1.0.0
+ * @return void
+ */
+function qsm_addon_XXXX_quiz_settings_tabs_content() {
+
+	// Display your quiz settings here!
+}