<?php

declare(strict_types=1);

namespace LinkCheckup\Features\AdminScreen;

use RuntimeException;

use function str_replace;

final class ScriptLoader {

	private const HANDLE          = 'link-checkup-admin';
	private const BOOT_PREFIX     = 'window.linkCheckupBoot = ';
	private const BOOT_SUFFIX     = ';';
	private const INLINE_POSITION = 'before';
	private const SITE_ROOT_PATH  = '/';
	private const HTML_SAFE_JSON  = JSON_HEX_TAG | JSON_HEX_AMP | JSON_HEX_APOS
		| JSON_HEX_QUOT;

	public function __construct(
		private AdminPage $admin_page,
		private UiBuild $ui_build,
		private string $plugin_version
	) {
	}

	public function enqueue( string $hook_suffix ): void {
		if ( ! $this->admin_page->is_page( $hook_suffix ) ) {
			return;
		}

		if ( ! $this->ui_build->is_built() ) {
			return;
		}

		$asset = $this->ui_build->asset();

		wp_enqueue_script(
			self::HANDLE,
			$this->ui_build->script_url(),
			$asset->dependencies,
			$asset->version,
			array( 'in_footer' => true )
		);
		wp_set_script_translations( self::HANDLE, 'aiplaz-link-checkup' );
		wp_add_inline_script(
			self::HANDLE,
			$this->boot_script( $asset ),
			self::INLINE_POSITION
		);
	}

	private function boot_script( BuildAsset $asset ): string {
		$boot_data = array(
			'version' => $this->plugin_version,
			'cssUrl'  => $this->ui_build->stylesheet_url( $asset ),
			'locale'  => str_replace( '_', '-', get_user_locale() ),
			'siteUrl' => home_url( self::SITE_ROOT_PATH ),
		);
		$boot_json = wp_json_encode( $boot_data, self::HTML_SAFE_JSON );

		if ( false === $boot_json ) {
			throw new RuntimeException(
				'The admin screen boot data cannot be encoded.'
			);
		}

		return self::BOOT_PREFIX . $boot_json . self::BOOT_SUFFIX;
	}
}