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1<?php
2
3namespace Automattic\Jetpack_Boost\Lib\Critical_CSS;
4
5use Automattic\Jetpack_Boost\Admin\Regenerate_Admin_Notice;
6use Automattic\Jetpack_Boost\Lib\Critical_CSS\Source_Providers\Source_Providers;
7use Automattic\Jetpack_Boost\Modules\Modules_Setup;
8use Automattic\Jetpack_Boost\Modules\Optimizations\Cloud_CSS\Cloud_CSS;
9use Automattic\Jetpack_Boost\Modules\Optimizations\Cloud_CSS\Cloud_CSS_Followup;
10
11class Regenerate {
12    /** @var Critical_CSS_State */
13    private $state;
14
15    public function is_cloud_css() {
16        $optimizations = ( new Modules_Setup() )->get_status();
17        return isset( $optimizations[ Cloud_CSS::get_slug() ] ) && $optimizations[ Cloud_CSS::get_slug() ];
18    }
19
20    public function start() {
21        // Get Critical CSS Source URLs
22        $source_providers = new Source_Providers();
23        $providers        = $source_providers->get_provider_sources();
24
25        // Store those URLs in the Critical CSS State
26        $this->state = new Critical_CSS_State();
27        $this->state->prepare_request()
28                ->set_pending_providers( $providers )
29                ->save();
30
31        // Get the data
32        $data = $this->state->get();
33
34        if ( $this->is_cloud_css() ) {
35            // If this is a cloud CSS request, we need to trigger the generation
36            // of the CSS and return the URL to the CSS file.
37            $cloud_css = new Cloud_CSS();
38            $cloud_css->regenerate_cloud_css( Cloud_CSS::REGENERATE_REASON_USER_REQUEST, $cloud_css->get_all_providers() );
39            Cloud_CSS_Followup::schedule();
40        }
41
42        // Clear previous Critical CSS From storage
43        $storage = new Critical_CSS_Storage();
44        $storage->clear();
45
46        // Dismiss admin notices
47        Regenerate_Admin_Notice::dismiss();
48        jetpack_boost_ds_delete( 'critical_css_suggest_regenerate' );
49
50        return $data;
51    }
52
53    public function get_state() {
54        return $this->state;
55    }
56}