Add hooks for GA tracking feature [PREMIUM-2]

lib/API/Endpoints/Newsletters.php

@@ -29,12 +29,12 @@ class Newsletters extends APIEndpoint {
         APIError::NOT_FOUND => __('This newsletter does not exist.', 'mailpoet')
       ));
     } else {
-      return $this->successResponse(
-        $newsletter
+      $newsletter = $newsletter
         ->withSegments()
         ->withOptions()
-        ->asArray()
-      );
+        ->asArray();
+      $newsletter = apply_filters('mailpoet_api_newsletters_get_after', $newsletter);
+      return $this->successResponse($newsletter);
     }
   }
 
@@ -51,6 +51,8 @@ class Newsletters extends APIEndpoint {
       unset($data['options']);
     }
 
+    $data = apply_filters('mailpoet_api_newsletters_save_before', $data);
+
     $newsletter = Newsletter::createOrUpdate($data);
     $errors = $newsletter->getErrors();
 
@@ -93,6 +95,8 @@ class Newsletters extends APIEndpoint {
         $newsletter = Newsletter::filter('filterWithOptions')
           ->findOne($newsletter->id);
 
+        do_action('mailpoet_api_newsletters_save_after', $newsletter);
+
         // if this is a post notification, process newsletter options and update its schedule
         if($newsletter->type === Newsletter::TYPE_NOTIFICATION) {
           // generate the new schedule from options and get the new "next run" date
@@ -204,6 +208,7 @@ class Newsletters extends APIEndpoint {
       if(!empty($errors)) {
         return $this->errorResponse($errors);
       } else {
+        do_action('mailpoet_api_newsletters_duplicate_after', $newsletter, $duplicate);
         return $this->successResponse(
           Newsletter::findOne($duplicate->id)->asArray(),
           array('count' => 1)

lib/Cron/Workers/SendingQueue/Tasks/Newsletter.php

@@ -36,11 +36,21 @@ class Newsletter {
       $this->tracking_image_inserted = OpenTracking::addTrackingImage();
       // render newsletter
       $rendered_newsletter = $newsletter->render();
+      $rendered_newsletter = apply_filters(
+        'mailpoet_sending_newsletter_render_after',
+        $rendered_newsletter,
+        $newsletter
+      );
       // hash and save all links
       $rendered_newsletter = LinksTask::process($rendered_newsletter, $newsletter, $queue);
     } else {
       // render newsletter
       $rendered_newsletter = $newsletter->render();
+      $rendered_newsletter = apply_filters(
+        'mailpoet_sending_newsletter_render_after',
+        $rendered_newsletter,
+        $newsletter
+      );
     }
     // check if this is a post notification and if it contains posts
     $newsletter_contains_posts = strpos($rendered_newsletter['html'], 'data-post-id');

lib/Newsletter/Links/Links.php

@@ -14,6 +14,9 @@ class Links {
   const DATA_TAG_OPEN = '[mailpoet_open_data]';
   const HASH_LENGTH = 5;
 
+  const LINK_TYPE_SHORTCODE = 'shortcode';
+  const LINK_TYPE_LINK = 'link';
+
   static function extract($content) {
     $extracted_links = array();
     // adopted from WP's wp_extract_urls() function &  modified to work on hrefs
@@ -39,6 +42,7 @@ class Links {
     if($shortcodes) {
       $extracted_links = array_map(function($shortcode) {
         return array(
+          'type' => self::LINK_TYPE_SHORTCODE,
           'html' => $shortcode,
           'link' => $shortcode
         );
@@ -50,6 +54,7 @@ class Links {
     if($matched_urls_count) {
       for($index = 0; $index < $matched_urls_count; $index++) {
         $extracted_links[] = array(
+          'type' => self::LINK_TYPE_LINK,
           'html' => $matched_urls[0][$index],
           'link' => $matched_urls[2][$index]
         );

tests/unit/Newsletter/Links/LinksTest.php

@@ -15,6 +15,7 @@ class LinksTest extends MailPoetTest {
 
     expect($result[0])->equals(
       array(
+        'type' => Links::LINK_TYPE_LINK,
         'html' => 'href="http://link1.com"',
         'link' => 'http://link1.com'
       )
@@ -27,6 +28,7 @@ class LinksTest extends MailPoetTest {
 
     expect($result[0])->equals(
       array(
+        'type' => Links::LINK_TYPE_SHORTCODE,
         'html' => '[link:some_link_shortcode]',
         'link' => '[link:some_link_shortcode]'
       )