<?php

declare( strict_types=1 );

namespace Rooster\Core;

defined( 'ABSPATH' ) || exit;

final class Footprint {

	
	private static array $notices = [];

	private static bool $active = false;

	public static function boot(): void {
		if ( is_admin() || empty( $_GET['rooster_footprint'] ) ) { 
			return;
		}
		self::$active = true;
		set_error_handler( [ self::class, 'capture' ], E_ALL ); 
		add_action( 'shutdown', [ self::class, 'report' ], PHP_INT_MAX );
	}

	
	public static function active(): bool {
		return self::$active;
	}

	public static function capture( int $errno, string $errstr, string $errfile = '', int $errline = 0 ): bool {
		if ( str_contains( $errfile, ROOSTER_DIR ) || str_contains( $errfile, get_stylesheet_directory() ) ) {
			self::$notices[] = sprintf( '%s in %s:%d', $errstr, str_replace( ABSPATH, '', $errfile ), $errline );
		}
		return false; 
	}

	public static function report(): void {
		if ( ! self::$active || ! current_user_can( 'edit_theme_options' ) ) {
			return;
		}
		$theme_dir = wp_normalize_path( ROOSTER_DIR );
		$plugins   = wp_normalize_path( WP_PLUGIN_DIR );
		$files     = [ 'inc' => [], 'blocks' => [], 'patterns' => [] ];
		$bytes     = 0;
		$per_plugin = [];
		foreach ( get_included_files() as $file ) {
			$file = wp_normalize_path( $file );
			if ( str_starts_with( $file, $theme_dir . '/' ) ) {
				$rel    = substr( $file, strlen( $theme_dir ) + 1 );
				$bytes += (int) @filesize( $file );
				if ( str_starts_with( $rel, 'blocks/' ) ) {
					$files['blocks'][] = $rel;
				} elseif ( str_starts_with( $rel, 'patterns/' ) ) {
					$files['patterns'][] = $rel;
				} else {
					$files['inc'][] = $rel;
				}
			} elseif ( str_starts_with( $file, $plugins . '/' ) ) {
				$plugin = explode( '/', substr( $file, strlen( $plugins ) + 1 ), 2 )[0];
				$per_plugin[ $plugin ] = ( $per_plugin[ $plugin ] ?? 0 ) + 1;
			}
		}
		$styles  = [];
		$scripts = [];
		foreach ( wp_styles()->done as $handle ) {
			$src = (string) ( wp_styles()->registered[ $handle ]->src ?? '' );
			if ( str_starts_with( $handle, 'rooster' ) || str_contains( $src, '/themes/' ) ) {
				$styles[] = [ 'handle' => $handle, 'src' => $src ];
			}
		}
		foreach ( wp_scripts()->done as $handle ) {
			$src = (string) ( wp_scripts()->registered[ $handle ]->src ?? '' );
			if ( str_starts_with( $handle, 'rooster' ) || str_contains( $src, '/themes/' ) ) {
				$scripts[] = [ 'handle' => $handle, 'src' => $src ];
			}
		}
		arsort( $per_plugin );
		$report = [
			'theme'          => ROOSTER_VERSION,
			'device'         => rooster_device_class(),
			'layer'          => Defer::is_full() ? 'full' : 'critical',
			'theme_files'    => $files['inc'],
			'block_files'    => $files['blocks'],
			'pattern_files'  => $files['patterns'],
			'theme_kb'       => round( $bytes / 1024, 1 ),
			'styles'         => $styles,
			'scripts'        => $scripts,
			'modules'        => array_values( array_filter( array_keys( (array) apply_filters( 'rooster/footprint/modules', Modules::loaded() ) ) ) ),
			'plugins'        => $per_plugin,
			'rooster_one'    => class_exists( 'AIEO_Theme_Adapters' ) ? [
				'adapter'  => (string) ( \AIEO_Theme_Adapters::active_adapter()['id'] ?? '' ),
				'purge'    => has_action( 'aieo_purge_page_cache' ) ? true : false,
				'consent'  => (bool) apply_filters( 'rooster/consent/provider_active', false ),
			] : null,
			'notices'        => self::$notices,
			'memory_kb'      => round( memory_get_peak_usage( true ) / 1024 ),
			'php_ms'         => round( ( microtime( true ) - (float) ( $_SERVER['REQUEST_TIME_FLOAT'] ?? microtime( true ) ) ) * 1000 ),
		];
		echo "\n<!-- rooster-footprint " . wp_json_encode( $report, JSON_UNESCAPED_SLASHES ) . " -->\n"; 
	}
}