<?php
namespace AdvancedAddons\Tools;

use AdvancedAddons\AI_Service;
use AdvancedAddons\Tool;

/**
 * Read the current page content as rendered HTML.
 */
class Get_Page_Content_Tool implements Tool {

	/**
	 * @var AI_Service
	 */
	private $ai_service;

	public function __construct( AI_Service $ai_service ) {
		$this->ai_service = $ai_service;
	}

	public function name(): string {
		return 'get_page_content';
	}

	public function description(): string {
		return 'Read the full current page content as rendered HTML. ' .
			'Call this when the compact page outline in the system prompt is not detailed enough — ' .
			"for example to match the exact Tailwind classes of an existing section, to copy a section's structure, " .
			'to plan a multi-section edit, or to verify what is currently on the page. ' .
			'For single-block edits use replace_selected_blocks, for adding a single new section use add_blocks_to_page — ' .
			"they don't need this tool. Returns the rendered HTML of every top-level block in document order.";
	}

	public function input_schema(): array {
		return array(
			'type'       => 'object',
			'properties' => new \stdClass(),
		);
	}

	public function execute( array $input, array $context = array() ): array {
		$post_id      = intval( $context['post_id'] ?? 0 ) ?: null;
		$live_content = $context['page_content'] ?? '';

		if ( ! $post_id && empty( $live_content ) ) {
			return array(
				'type'    => 'error',
				'message' => __( 'No current post ID available.', 'advanced-animation' ),
			);
		}

		$result = $this->ai_service->get_page_content( $post_id, $live_content );

		if ( is_wp_error( $result ) ) {
			return array(
				'type'    => 'error',
				'message' => $result->get_error_message(),
			);
		}

		return array(
			'type'            => 'page_content',
			'format'          => 'html',
			'total_blocks'    => $result['total_blocks'],
			'returned_blocks' => $result['returned_blocks'],
			'truncated'       => false,
			'content'         => $result['content'],
		);
	}
}