Preprocess transactional email newsletter

[MAILPOET-2286]

lib/Newsletter/Editor/LayoutHelper.php

@@ -3,28 +3,26 @@
 namespace MailPoet\Newsletter\Editor;
 
 class LayoutHelper {
-  static function row($blocks) {
+  static function row($blocks, $styles = []) {
+    if (empty($styles['backgroundColor'])) {
+      $styles['backgroundColor'] = 'transparent';
+    }
     return [
       'type' => 'container',
       'orientation' => 'horizontal',
-      'styles' => [
+      'styles' => ['block' => $styles],
-        'block' => [
-          'backgroundColor' => 'transparent',
-        ],
-      ],
       'blocks' => $blocks,
     ];
   }
 
-  static function col($blocks) {
+  static function col($blocks, $styles = []) {
+    if (empty($styles['backgroundColor'])) {
+      $styles['backgroundColor'] = 'transparent';
+    }
     return [
       'type' => 'container',
       'orientation' => 'vertical',
-      'styles' => [
+      'styles' => ['block' => $styles],
-        'block' => [
-          'backgroundColor' => 'transparent',
-        ],
-      ],
       'blocks' => $blocks,
     ];
   }

lib/Newsletter/Renderer/Preprocessor.php

@@ -4,6 +4,7 @@ namespace MailPoet\Newsletter\Renderer;
 
 use MailPoet\Newsletter\Editor\LayoutHelper;
 use MailPoet\Newsletter\Renderer\Blocks\Renderer as BlocksRenderer;
+use MailPoet\WP\Functions as WPFunctions;
 
 class Preprocessor {
   const WC_HEADING_PLACEHOLDER = '[mailpet_woocommerce_heading_placeholder]';
@@ -12,8 +13,12 @@ class Preprocessor {
   /** @var BlocksRenderer */
   private $blocks_renderer;
 
-  public function __construct(BlocksRenderer $blocks_renderer) {
+  /** @var WPFunctions */
+  private $wp;
+
+  public function __construct(BlocksRenderer $blocks_renderer, WPFunctions $wp) {
     $this->blocks_renderer = $blocks_renderer;
+    $this->wp = $wp;
   }
 
   /**
@@ -41,7 +46,10 @@ class Preprocessor {
       case 'automatedLatestContentLayout':
         return $this->blocks_renderer->automatedLatestContentTransformedPosts($block);
       case 'woocommerceHeading':
-        return $this->placeholder(self::WC_HEADING_PLACEHOLDER);
+        $base_color = $this->wp->getOption('woocommerce_email_base_color');
+        $text_color = $this->wp->getOption('woocommerce_email_text_color');
+        $content = '<h1 style="color:' . $text_color . ';">' . self::WC_HEADING_PLACEHOLDER . '</h1>';
+        return $this->placeholder($content, ['backgroundColor' => $base_color]);
       case 'woocommerceContent':
         return $this->placeholder(self::WC_CONTENT_PLACEHOLDER);
     }
@@ -49,17 +57,17 @@ class Preprocessor {
   }
 
   /**
-   * @param array $block
+   * @param string $text
    * @return array
    */
-  private function placeholder($text) {
+  private function placeholder($text, $styles = []) {
     return [
       LayoutHelper::row([
         LayoutHelper::col([[
           'type' => 'text',
           'text' => $text,
         ]]),
-      ]),
+        ], $styles),
     ];
   }
 }

lib/Newsletter/Renderer/Renderer.php

@@ -31,7 +31,7 @@ class Renderer {
     $this->preview = $preview;
     $this->blocks_renderer = new Blocks\Renderer($this->newsletter);
     $this->columns_renderer = new Columns\Renderer();
-    $this->preprocessor = new Preprocessor($this->blocks_renderer);
+    $this->preprocessor = new Preprocessor($this->blocks_renderer, WPFunctions::get());
     $this->CSS_inliner = new \MailPoet\Util\CSS();
     $this->template = file_get_contents(dirname(__FILE__) . '/' . self::NEWSLETTER_TEMPLATE);
     $this->premium_activated = License::getLicense();

tasks/phpstan/woocommerce.php

@@ -2,6 +2,8 @@
 
 // phpcs:ignore
 class WooCommerce {
+  function mailer() {
+  }
 }
 
 /**

tests/unit/Newsletter/Renderer/PreprocessorTest.php

@@ -0,0 +1,70 @@
+<?php
+
+namespace MailPoet\Test\Newsletter;
+
+use Codeception\Stub;
+use MailPoet\Newsletter\Renderer\Blocks\Renderer;
+use MailPoet\Newsletter\Renderer\Preprocessor;
+use MailPoet\WP\Functions;
+
+class PreprocessorTest extends \MailPoetUnitTest {
+
+  function testProcessWooCommerceHeadingBlock() {
+    $renderer = Stub::make(Renderer::class);
+    $wp = Stub::make(new Functions, [
+      'getOption' => function($name) {
+        if ($name === 'woocommerce_email_base_color')
+          return '{base_color}';
+        if ($name === 'woocommerce_email_text_color')
+          return '{text_color}';
+      },
+    ]);
+    $preprocessor = new Preprocessor($renderer, $wp);
+    expect($preprocessor->processBlock(['type' => 'woocommerceHeading']))->equals([[
+      'type' => 'container',
+      'orientation' => 'horizontal',
+      'styles' => [
+        'block' => ['backgroundColor' => '{base_color}'],
+      ],
+      'blocks' => [
+        [
+          'type' => 'container',
+          'orientation' => 'vertical',
+          'styles' => ['block' => ['backgroundColor' => 'transparent']],
+          'blocks' => [
+            [
+              'type' => 'text',
+              'text' => '<h1 style="color:{text_color};">[mailpet_woocommerce_heading_placeholder]</h1>',
+            ],
+          ],
+        ],
+      ],
+    ]]);
+  }
+
+  function testProcessWooCommerceContentBlock() {
+    $renderer = Stub::make(Renderer::class);
+    $preprocessor = new Preprocessor($renderer, new Functions);
+    expect($preprocessor->processBlock(['type' => 'woocommerceContent']))->equals([[
+      'type' => 'container',
+      'orientation' => 'horizontal',
+      'styles' => [
+        'block' => ['backgroundColor' => 'transparent'],
+      ],
+      'blocks' => [
+        [
+          'type' => 'container',
+          'orientation' => 'vertical',
+          'styles' => ['block' => ['backgroundColor' => 'transparent']],
+          'blocks' => [
+            [
+              'type' => 'text',
+              'text' => '[mailpet_woocommerce_content_placeholder]',
+            ],
+          ],
+        ],
+      ],
+    ]]);
+  }
+
+}