<?php
/**
 * Admin asset loading for ActionPanel AI screens.
 *
 * @package ActionPanelAI
 */

namespace ActionPanelAI\Admin;

use ActionPanelAI\Services\SettingsRepository;
use ActionPanelAI\Support\ApiEndpointResolver;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Enqueues plugin admin styles and scripts.
 */
class Assets {
	/**
	 * Whether the module script tag filter has been attached.
	 *
	 * @var bool
	 */
	private bool $script_tag_filter_hooked = false;

	/**
	 * Create the asset loader with settings and endpoint dependencies.
	 *
	 * @param SettingsRepository  $settings              Settings repository.
	 * @param ApiEndpointResolver $api_endpoint_resolver API endpoint resolver.
	 */
	public function __construct(
		private SettingsRepository $settings,
		private ApiEndpointResolver $api_endpoint_resolver
	) {
	}

	/**
	 * Enqueue assets for ActionPanel AI admin screens.
	 *
	 * @param string $hook Current admin page hook suffix.
	 */
	public function enqueue( string $hook ): void {
		wp_enqueue_style(
			'actionpanel-ai-menu-icon',
			trailingslashit( ACTIONPANEL_AI_PLUGIN_URL ) . 'assets/admin/menu-icon.css',
			array(),
			ACTIONPANEL_AI_PLUGIN_VERSION
		);

		if ( Menu::main_screen_id() !== $hook ) {
			return;
		}

		if ( ! $this->script_tag_filter_hooked ) {
			add_filter( 'script_loader_tag', array( $this, 'force_module_script_tag' ), 10, 3 );
			$this->script_tag_filter_hooked = true;
		}
		if ( wp_script_is( 'heartbeat', 'enqueued' ) ) {
			wp_dequeue_script( 'heartbeat' );
		}

		if ( wp_script_is( 'svg-painter', 'enqueued' ) ) {
			wp_dequeue_script( 'svg-painter' );
		}

		wp_enqueue_script( 'common' );

		wp_enqueue_script( 'wp-blocks' );
		wp_enqueue_script( 'wp-hooks' );
		wp_enqueue_script( 'wp-util' );

		wp_enqueue_style(
			'actionpanel-ai-main-page',
			trailingslashit( ACTIONPANEL_AI_PLUGIN_URL ) . 'assets/admin/main-page.css',
			array(),
			ACTIONPANEL_AI_PLUGIN_VERSION
		);

		$asset_base = trailingslashit( ACTIONPANEL_AI_PLUGIN_URL . 'build' );

		wp_register_script(
			'actionpanel-ai-app',
			$asset_base . 'index.js',
			array( 'wp-blocks', 'wp-hooks', 'wp-util' ),
			ACTIONPANEL_AI_PLUGIN_VERSION,
			true
		);

		// Hint module intent for modern WordPress script loading.
		wp_script_add_data( 'actionpanel-ai-app', 'type', 'module' );

		wp_localize_script(
			'actionpanel-ai-app',
			'actionPanelAiConfig',
			array(
				'restNonce'         => wp_create_nonce( 'wp_rest' ),
				'nonceRefreshUrl'   => admin_url( 'admin-ajax.php?action=actionpanel_ai_refresh_rest_nonce' ),
				'nonceRefreshNonce' => wp_create_nonce( 'actionpanel_ai_refresh_rest_nonce' ),
				'chatEndpoint'      => $this->api_endpoint_resolver->get_base_url(),
				'cssUrl'            => $asset_base . 'index.css',
				'restEndpoints'     => array(
					'settings'     => rest_url( 'actionpanel-ai/v1/settings' ),
					'attachments'  => rest_url( 'actionpanel-ai/v1/attachments' ),
					'capabilities' => rest_url( 'actionpanel-ai/v1/capabilities' ),
					'commands'     => rest_url( 'actionpanel-ai/v1/commands' ),
				),
				'settings'          => array(
					'allowActionPanelAiRequests'     => (bool) $this->settings->get_allow_requests(),
					'assistantEnabled'               => (bool) $this->settings->get_allow_requests(),
					'allowLogReads'                  => (bool) $this->settings->get_allow_log_reads(),
					'allowWriteOperations'           => (bool) $this->settings->get_allow_write_operations(),
					'autoApproveSafeWriteOperations' => (bool) $this->settings->get_auto_approve_safe_write_operations(),
					'requireReadApproval'            => (bool) $this->settings->get_require_read_approval(),
					'setupCompleted'                 => (bool) $this->settings->is_setup_completed(),
				),
			)
		);

		wp_enqueue_script( 'actionpanel-ai-app' );
	}

	/**
	 * Force the frontend bundle to load as an ES module.
	 *
	 * @param string $tag    Generated script tag.
	 * @param string $handle Script handle.
	 * @param string $src    Script source URL.
	 */
	public function force_module_script_tag( string $tag, string $handle, string $src ): string {
		unset( $src );

		if ( 'actionpanel-ai-app' !== $handle ) {
			return $tag;
		}

		if ( false !== strpos( $tag, ' type=' ) ) {
			$updated = preg_replace( '/\stype=(["\']).*?\1/i', ' type="module"', $tag, 1 );
			if ( is_string( $updated ) && '' !== $updated ) {
				return $updated;
			}
		}

		return str_replace( '<script ', '<script type="module" ', $tag );
	}
}