quicksilver-branch-diffy.php

<?php

use Diffy\Diffy;
use Diffy\Screenshot;
use Diffy\Diff;

// https://pantheon.io/docs/guides/quicksilver/variables
$pantheon_environment = $_ENV['environment'];

// Not sure how these are build for your site.
$pentheon_multidev_env_url = $pantheon_environment . '-some-domain.pantheon.io';

$secrets = $this->get_secrets(['token', 'project_id']);
$project_id = $secrets['project_id'];

Diffy::setApiKey($secrets['token']);
$list = Screenshot::all($project_id);

$screenshots = $list['screenshotsForDiff'];

$previous_screenshot_found = FALSE;
foreach ($screenshots as $screenshot) {
    if (strpos($screenshot['name'], $pantheon_environment) !== FALSE) {
        $previous_screenshot_found = TRUE;
        break;
    }
}
$previous_screenshot_id = NULL;
if ($previous_screenshot_found) {
    $previous_screenshot_id = $screenshot['id'];
}

// Create new screenshot and rename it.
$new_screenshot_id = Screenshot::create($project_id, 'custom', ['baseUrl' => $pentheon_multidev_env_url]);
$screenshot = new Screenshot($new_screenshot_id);
$screenshot->setName($pantheon_environment . ' ' . date('M d'));

// Create the diff if found previous screenshot.
if ($previous_screenshot_id && $new_screenshot_id) {
    Diff::create($project_id, $previous_screenshot_id, $new_screenshot_id);
}