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<?php

namespace Elementor\Modules\Variables\Classes;

use Elementor\Modules\Variables\Services\Variables_Service;

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

class CSS_Renderer {
	private Variables_Service $service;

public function __construct( Variables_Service $service ) {
		$this->service = $service;
	}

private function global_variables(): array {
		return $this->service->get_variables_list();
	}

public function raw_css(): string {
		$list_of_variables = $this->global_variables();

if ( empty( $list_of_variables ) ) {
			return '';
		}

$css_entries = $this->css_entries_for( $list_of_variables );

if ( empty( $css_entries ) ) {
			return '';
		}

return $this->wrap_with_root( $css_entries );
	}

private function css_entries_for( array $list_of_variables ): array {
		$entries = [];

foreach ( $list_of_variables as $variable_id => $variable ) {
			$entry = $this->build_css_variable_entry( $variable_id, $variable );

if ( empty( $entry ) ) {
				continue;
			}

$entries[] = $entry;
		}

return $entries;
	}

private function build_css_variable_entry( string $id, array $variable ): ?string {
		$variable_name = sanitize_text_field( $id );

if ( ! array_key_exists( 'deleted_at', $variable ) ) {
			$variable_name = sanitize_text_field( $variable['label'] ?? '' );
		}

$value = sanitize_text_field( $variable['value'] ?? '' );

if ( empty( $value ) || empty( $variable_name ) ) {
			return null;
		}

$entry = "--{$variable_name}:{$value};";

$additional = apply_filters( 'elementor/variables/css_entry_additional', '', $variable, $id );

return $entry . $additional;
	}

private function wrap_with_root( array $css_entries ): string {
		return ':root { ' . implode( ' ', $css_entries ) . ' }';
	}
}