Remove redundant library, move Email to Template

Author: MGatner

src/Entities/Template.php

@@ -1,5 +1,6 @@
 <?php namespace Tatter\Outbox\Entities;
 
+use CodeIgniter\Email\Email;
 use CodeIgniter\Entity;
 use Tatter\Outbox\Models\TemplateModel;
 use TijsVerkoyen\CssToInlineStyles\CssToInlineStyles;
@@ -9,56 +10,146 @@ class Template extends Entity
 	protected $table = 'outbox_templates';
     protected $dates = ['created_at', 'updated_at', 'deleted_at'];
     protected $casts = [
-    	'tokens'    => 'csv',
     	'parent_id' => '?int',
     ];
 
 	/**
-	 * Renders this Template with inlined CSS.
+	 * Stored parent Template.
+	 *
+	 * @var self|null
+	 */
+	protected $parent;
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Returns the parent Template, if set.
+	 *
+	 * @return self|null
+	 */
+	public function getParent(): ?self
+	{
+		if (! isset($this->attributes['parent_id']))
+		{
+			return null;
+		}
+
+		if (is_null($this->parent))
+		{
+			$this->parent = model(TemplateModel::class)->find($this->attributes['parent_id']);
+		}
+
+		return $this->parent;
+	}
+
+	/**
+	 * Returns the subject from the parent Template if this one is empty.
+	 *
+	 * @return string
+	 */
+	public function getSubject(): string
+	{
+		if (! empty($this->attributes['subject']))
+		{
+			return $this->attributes['subject'];
+		}
+
+		return $this->getParent() ? $this->parent->subject : '';
+	}
+
+	/**
+	 * Returns any subject or body tokens from this and parent.
+	 *
+	 * @return array
+	 */
+	public function getTokens(): array
+	{
+		preg_match_all('#\{(\w+)\}#', $this->attributes['subject'] . $this->attributes['body'], $matches);
+
+		if ($parent = $this->getParent())
+		{
+			$matches[1] = array_unique(array_merge($parent->getTokens(), $matches[1]));
+		}
+
+		return $matches[1];
+	}
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Renders the body with inlined CSS.
 	 *
 	 * @param array $data Variables to exchange for Template tokens
 	 * @param string|null $styles CSS to use for inlining, defaults to configured view
 	 *
 	 * @return string
 	 */
-	public function render($data = [], string $styles = null): string
+	public function renderBody($data = [], string $styles = null): string
 	{
 		if (empty($this->attributes['body']))
 		{
 			return '';
 		}
 
 		// Replace tokens with $data values
-		$body = service('parser')->setData($data, 'raw')->renderString($this->attributes['body'], ['debug' => false]);
+		$body = service('parser')
+			->setData($data, 'raw')
+			->renderString($this->attributes['body'], ['debug' => false]);
 
 		// If this has a parent Template then render it with this body
 		if ($parent = $this->getParent())
 		{
 			$data['body'] = $body;
 
-			return $parent->render($data, $styles);
+			return $parent->renderBody($data, $styles);
 		}
 
 		// Determine styling
 		$styles = $styles ?? view(config('Outbox')->styles, [], ['debug' => false]);
-		if (empty($styles))
+
+		return $styles === '' ? $body : (new CssToInlineStyles)->convert($body, $styles);
+	}
+
+	/**
+	 * Renders the subject.
+	 *
+	 * @param array $data Variables to exchange for Template tokens
+	 *
+	 * @return string
+	 */
+	public function renderSubject($data = []): string
+	{
+		if (! $subject = $this->getSubject())
 		{
-			return $body;
+			return '';
 		}
 
-		return (new CssToInlineStyles)->convert($body, $styles);
+		// Replace tokens with $data values
+		return service('parser')
+			->setData($data, 'raw')
+			->renderString($subject, ['debug' => false]);
 	}
 
+	//--------------------------------------------------------------------
+
 	/**
-	 * Returns the parent Template, if set.
+	 * Returns an Email instance primed to this Template's rendered values.
 	 *
-	 * @return self|null
+	 * @param array $data         Variables to use when rendering the body
+	 * @param string|null $styles CSS to use for inlining, null to use configured view
+	 *
+	 * @return Email
 	 */
-	public function getParent(): ?self
+	public function email($data = [], string $styles = null): Email
 	{
-		return $this->parent_id
-			? model(TemplateModel::class)->find($this->parent_id)
-			: null;
+		// Start with the default config and add necessary settings
+		$email = service('email');
+		$email->mailType = 'html';
+		$email->wordWrap = false;
+
+		// Render the subject and body and return the Email instance
+		return $email
+			->setSubject($this->renderSubject($data))
+			->setMessage($this->renderBody($data, $styles));
 	}
 }
-