<?php
/**
 * Activate Theme Tool.
 *
 * Activate an installed theme using switch_theme(). Validates theme exists
 * and is not already active before switching.
 *
 * @package   Agenistrator
 * @since     1.0.0
 * @author    Alex Ruban <alex@maximum.guru>
 * @author    Maximum Software Inc <contact@maximum.software>
 * @license   GPL-3.0-only
 * @link      https://agenistrator.com/
 *
 * SPDX-FileCopyrightText: 2025-2026 Alex Ruban <alex@maximum.guru>
 * SPDX-FileCopyrightText: 2025-2026 Maximum Software Inc <contact@maximum.software>
 * SPDX-License-Identifier: GPL-3.0-only
 */

namespace Agenistrator;

// Direct access prevention
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Activate_Theme_Tool class.
 */
class Activate_Theme_Tool extends Tool {

	/**
	 * Get the tool ID.
	 *
	 * @return string The tool ID.
	 * @since     1.0.0
	 */
	public function get_id() {
		return 'activate_theme';
	}

	/**
	 * Get the tool name.
	 *
	 * @return string The tool name.
	 * @since     1.0.0
	 */
	public function get_name() {
		return __( 'Activate Theme', 'agenistrator' );
	}

	/**
	 * Get the tool description.
	 *
	 * @return string The tool description.
	 * @since     1.0.0
	 */
	public function get_description() {
		return 'Activate an installed theme.';
	}

	/**
	 * Get the parameters schema for this tool.
	 *
	 * @return array Parameters schema in JSON Schema format.
	 * @since     1.0.0
	 */
	public function get_parameters() {
		return array(
			'type'       => 'object',
			'properties' => array(
				'stylesheet' => array(
					'type'        => 'string',
					'description' => 'Theme stylesheet (directory name) or theme name',
				),
			),
			'required'   => array( 'stylesheet' ),
		);
	}

	/**
	 * Check if the current user can execute this tool.
	 *
	 * @return bool True if the current user has permission.
	 * @since     1.0.0
	 */
	public function current_user_can_execute() {
		return current_user_can( 'switch_themes' );
	}

	/**
	 * Check if this tool is read-only.
	 *
	 * @return bool True if the tool only reads data.
	 * @since     1.0.0
	 */
	public function is_read_only() {
		return false;
	}

	/**
	 * Execute the tool with the given arguments.
	 *
	 * @param array $args The tool arguments.
	 *
	 * @return array The tool execution result.
	 * @since     1.0.0
	 */
	protected function execute( $args ) {
		if ( ! isset( $args['stylesheet'] ) || empty( $args['stylesheet'] ) ) {
			return $this->error_response( 'Theme stylesheet is required' );
		}

		$search = $args['stylesheet'];
		$theme  = wp_get_theme( $search );

		// If not found by stylesheet, search by name
		if ( ! $theme->exists() ) {
			$all_themes = wp_get_themes();
			foreach ( $all_themes as $stylesheet => $t ) {
				if ( stripos( $t->get( 'Name' ), $search ) !== false ) {
					$theme = $t;
					break;
				}
			}
		}

		if ( ! $theme->exists() ) {
			return $this->error_response( 'Theme not found' );
		}

		$stylesheet = $theme->get_stylesheet();

		if ( get_stylesheet() === $stylesheet ) {
			return $this->error_response( 'Theme is already active' );
		}

		switch_theme( $stylesheet );

		return $this->success_response(
			'Theme activated successfully',
			array(
				'stylesheet' => $stylesheet,
				'name'       => $theme->get( 'Name' ),
				'version'    => $theme->get( 'Version' ),
			)
		);
	}
}
