/**
* Embed campaigns into the newsletter and return the updated html
*
* @param string $html the email content
* @param array $campaign the general campaign for the newsletter
* @param array $additionalCampaigns additional campaigns to be replaced
* @return string $html html with updated hrefs
*/
public static function embedCampaigns($html, $campaign = [], $additionalCampaigns = [])
{
$pattern = '/<a(\\s[^>]*)href="([^"]*)"([^>]*)>/si';
$html = preg_replace_callback($pattern, function ($matches) use($campaign, $additionalCampaigns) {
$href = GoogleCampaignPlugin::replaceLink($matches[2], $campaign, $additionalCampaigns);
return "<a{$matches[1]}href=\"{$href}\"{$matches[3]}>";
}, $html);
return $html;
}
/**
* @covers Openbuildings\Swiftmailer\GoogleCampaignPlugin::replaceLink
*/
public function test_replace_link()
{
$href = 'http://example.com';
$href = GoogleCampaignPlugin::replaceLink($href, ['utm_source' => 'newsletter', 'utm_campaign' => 'my_campaign']);
$this->assertEquals('http://example.com?utm_source=newsletter&utm_campaign=my_campaign', $href);
$href = GoogleCampaignPlugin::replaceLink($href, ['utm_source' => 'newsletter', 'utm_campaign' => 'my_second_campaign']);
$this->assertEquals('http://example.com?utm_source=newsletter&utm_campaign=my_campaign', $href, 'Should not replace link with existing campaign params');
$href = 'http://example.com?test_param=test_value&google_campaign=share';
$href = GoogleCampaignPlugin::replaceLink($href, ['utm_source' => 'newsletter', 'utm_campaign' => 'my_general_campaign'], ['share' => ['utm_source' => 'newsletter', 'utm_campaign' => 'my_share_campaign']]);
$this->assertEquals('http://example.com?test_param=test_value&utm_source=newsletter&utm_campaign=my_share_campaign', $href, 'Should replace link with share campaign');
}
