<?php
namespace QWSpeedCache\Tools;

defined( 'ABSPATH' ) || exit;

/**
 * Debug / Test mode.
 * When test mode is on, optimizations only apply for logged-in admins.
 */
class Debug {

	public function __construct() {
		$s = \QWSpeedCache\Plugin::instance()->get_all_settings();

		if ( ! empty( $s['test_mode'] ) ) {
			// In test mode, disable optimizations for non-admins
			if ( ! current_user_can( 'manage_options' ) ) {
				add_filter( 'qwsc_should_optimize', '__return_false' );
			}
		}

		if ( ! empty( $s['debug_mode'] ) && current_user_can( 'manage_options' ) ) {
			add_action( 'wp_footer', array( $this, 'footer_comment' ), 9999 );
			add_action( 'admin_bar_menu', array( $this, 'admin_bar' ), 200 );
		}
	}

	public function footer_comment() {
		$cache = isset( $_SERVER['HTTP_X_QWSC_CACHE_STATUS'] ) && is_string( $_SERVER['HTTP_X_QWSC_CACHE_STATUS'] ) ? sanitize_text_field( wp_unslash( $_SERVER['HTTP_X_QWSC_CACHE_STATUS'] ) ) : 'n/a';
		printf( "\n<!-- QW Optimize Debug | Cache: %s | v%s -->\n", esc_html( $cache ), esc_html( QWSC_VERSION ) );
	}

	public function admin_bar( $bar ) {
		$bar->add_node( array(
			'id'    => 'qwsc-debug',
			'title' => 'QW Optimize Debug ON',
			'href'  => admin_url( 'admin.php?page=qw-speed-cache-tools' ),
		) );
	}
}