<?php
/**
 * Actirise Debug
 *
 * @link       https://actirise.com
 * @since      2.0.0
 *
 * @package    actirise
 * @subpackage actirise/public/includes
 */

namespace ActirisePublic\Includes;

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly
}

use WP_Error;
use Actirise\Includes\Api;
use Actirise\Includes\Cron;
use Actirise\Includes\Helpers;
use Actirise\Includes\Logger;

/**
 * Actirise Debug
 *
 * @since      2.0.0
 * @package    actirise
 * @subpackage actirise/public/includes
 * @author     actirise <support@actirise.com>
 */
final class Debug {
	/**
	 * The unique identifier of this plugin.
	 *
	 * @since    2.0.0
	 * @access   protected
	 * @var      string    $plugin_name    The string used to uniquely identify this plugin.
	 */

	protected $plugin_name;

	/**
	 * Debug constructor.
	 *
	 * @since    2.0.0
	 * @param    string $plugin_name The name of this plugin.
	 */
	public function __construct( $plugin_name ) {
		$this->plugin_name = $plugin_name;
	}

	/**
	 * The loader of this plugin.
	 *
	 * @since    2.0.0
	 * @return void
	 */
	public function init() {
		$request = isset( $_SERVER['REQUEST_URI'] ) ? esc_url_raw( wp_unslash( $_SERVER['REQUEST_URI'] ) ) : false;
		$method = isset( $_SERVER['REQUEST_METHOD'] ) ? wp_unslash( $_SERVER['REQUEST_METHOD'] ) : false;
		$enabled = get_option( $this->plugin_name . '-debug-enabled', '1' )  === '1';
		$cron = defined( 'ACTIRISE_CRON' ) && ACTIRISE_CRON === 'true';
		/** @var string $token */
		$token = get_option( $this->plugin_name . '-debug-token', '' );

		if ( $request === '/debug' && $method === 'POST') {
			if ($enabled) {
				if ($this->check_token($token)) {
					$this->render_debug();
				}
			}
		} else {
			if ($cron === false && $enabled) {
				$this->check_update();
			}
		}
	}

	/**
	 * Generate abd render debug
	 *
	 * @since    2.0.0
	 * @return void
	 */
	public function render_debug() {
		// return 200
		header( 'Content-Type: application/json' );
		header( 'Actirise: true' );
		header( 'HTTP/1.1 200 OK' );

		$cron = new Cron();
		$cron->refresh_token();

		// return empty json
		wp_send_json_success( array(
			"wordpress" => array(
				"name" => get_bloginfo( 'name' ),
				"description" => get_bloginfo( 'description' ),
				"url" => get_bloginfo( 'url' ),
				"wpurl" => get_bloginfo( 'wpurl' ),
				"charset" => get_bloginfo( 'charset' ),
				"version" => get_bloginfo( 'version' ),
				"html_type" => get_bloginfo( 'html_type' ),
				"text_direction" => get_bloginfo( 'text_direction' ),
				"language" => get_bloginfo( 'language' ),
				"theme" => $this->get_theme_name(),
				"pingback_url" => get_bloginfo( 'pingback_url' ),
				"feed" => array(
					"atom_url" => get_bloginfo( 'atom_url' ),
					"rdf_url" => get_bloginfo( 'rdf_url' ),
					"rss_url" => get_bloginfo( 'rss_url' ),
					"rss2_url" => get_bloginfo( 'rss2_url' ),
					"comments_atom_url" => get_bloginfo( 'comments_atom_url' ),
					"comments_rss2_url" => get_bloginfo( 'comments_rss2_url' ),
				),
				"plugins" => $this->get_plugin_info(),
				"database" => array(
					"charset" => $GLOBALS['wpdb']->charset,
					"collate" => $GLOBALS['wpdb']->collate,
				),
				"network" => array(
					'MULTISITE' => defined( 'MULTISITE' ) ? constant( 'MULTISITE' ) : false,
					'ALLOW_SUBDIRECTORY_INSTALL' => defined( 'ALLOW_SUBDIRECTORY_INSTALL' ) ? constant( 'ALLOW_SUBDIRECTORY_INSTALL' ) : false,
					'BLOG_ID_CURRENT_SITE' => defined( 'BLOG_ID_CURRENT_SITE' ) ? constant( 'BLOG_ID_CURRENT_SITE' ) : false,
					'DOMAIN_CURRENT_SITE' => defined( 'DOMAIN_CURRENT_SITE' ) ? constant( 'DOMAIN_CURRENT_SITE' ) : false,
					'DIEONDBERROR' => defined( 'DIEONDBERROR' ) ? constant( 'DIEONDBERROR' ) : false,
					'ERRORLOGFILE' => defined( 'ERRORLOGFILE' ) ? constant( 'ERRORLOGFILE' ) : false,
					'BLOGUPLOADDIR' => defined( 'BLOGUPLOADDIR' ) ? constant( 'BLOGUPLOADDIR' ) : false,
					'NOBLOGREDIRECT' => defined( 'NOBLOGREDIRECT' ) ? constant( 'NOBLOGREDIRECT' ) : false,
					'PATH_CURRENT_SITE' => defined( 'PATH_CURRENT_SITE' ) ? constant( 'PATH_CURRENT_SITE' ) : false,
					'UPLOADBLOGSDIR' => defined( 'UPLOADBLOGSDIR' ) ? constant( 'UPLOADBLOGSDIR' ) : false,
					'SITE_ID_CURRENT_SITE' => defined( 'SITE_ID_CURRENT_SITE' ) ? constant( 'SITE_ID_CURRENT_SITE' ) : false,
					'SUBDOMAIN_INSTALL' => defined( 'SUBDOMAIN_INSTALL' ) ? constant( 'SUBDOMAIN_INSTALL' ) : false,
					'UPLOADS' => defined( 'UPLOADS' ) ? constant( 'UPLOADS' ) : false,
					'WPMU_ACCEL_REDIRECT' => defined( 'WPMU_ACCEL_REDIRECT' ) ? constant( 'WPMU_ACCEL_REDIRECT' ) : false,
					'WPMU_SENDFILE' => defined( 'WPMU_SENDFILE' ) ? constant( 'WPMU_SENDFILE' ) : false,
					'WP_ALLOW_MULTISITE' => defined( 'WP_ALLOW_MULTISITE' ) ? constant( 'WP_ALLOW_MULTISITE' ) : false,
				),
			),
			"actirise" => array(
				"version" => ACTIRISE_VERSION,
				'channel'         => get_option( $this->plugin_name . '-update-channel', 'stable' ),
				'init'        => get_option( $this->plugin_name . '-init', 'false' ),
				'uuid'        => get_option( $this->plugin_name . '-settings-uuid' ),
				'type'        => get_option( $this->plugin_name . '-settings-uuid-type', 'boot' ),
				'cron'        => defined( 'ACTIRISE_CRON' ) && ACTIRISE_CRON === 'true',
				'noPub'       => get_option( $this->plugin_name . '-nopub', array() ),
				'customVar'   => array(
					'custom_fields'     => $this->get_custom_fields(),
					'selected' => array(
						'custom1' => get_option( $this->plugin_name . '-custom1', 'author_ID' ),
						'custom2' => get_option( $this->plugin_name . '-custom2', 'category_0_slug' ),
						'custom3' => get_option( $this->plugin_name . '-custom3', 'post_ID' ),
						'custom4' => get_option( $this->plugin_name . '-custom4', '' ),
						'custom5' => get_option( $this->plugin_name . '-custom5', '' ),
					),
				),
				'adstxt'      => array(
					'actirise' => get_option( $this->plugin_name . '-adstxt-actirise', '' ),
					'custom'   => get_option( $this->plugin_name . '-adstxt-custom', array() ),
					'enabled'  => get_option( $this->plugin_name . '-adstxt-active', 'false' ) === 'true',
					'update'   => get_option( $this->plugin_name . '-adstxt-update', 'false' ) === 'true',
				),
				'presizedDiv' => array(
					'actirise' => get_option( $this->plugin_name . '-presizeddiv-actirise', array() ),
					'selected' => get_option( $this->plugin_name . '-presizeddiv-selected', array() ),
					'enabled'  => get_option( $this->plugin_name . '-presizeddiv-active', 'false' ) === 'true',
					'notif'    => get_option( $this->plugin_name . '-presizeddiv-notif', array() ),
				),
				'cache'         => array(
					'wprocket'  => defined( 'WP_ROCKET_VERSION' ),
					'wpmeteor'  => defined( 'WPMETEOR_VERSION' ),
					'litespeed' => defined( 'LSCWP_V' ),
				),
				'fastcmp'       => Helpers::get_fastcmp_options( false ),
				'api' => array(
					'api_url'       => ACTIRISE_URL_API,
					'api_url_v2'    => ACTIRISE_URL_API_V2,
					'api_token'     => get_option( $this->plugin_name . '-settings-analytics-token', '' ),
					'api_version'   => get_option( $this->plugin_name . '-api_version', 'v1' ),
					'api_userid'    => get_option( $this->plugin_name . '-settings-analytics-userid', '' ),
					'currency'      => get_option( $this->plugin_name . '-currency', 'USD' ),
				),
				'autoUpdate' 	=> get_option( $this->plugin_name . '-auto-update', 'false' ) === 'true',
				'logs' => Logger::GetLogs(),
			),
			"server" => array(
				"php" => array(
					"version" => phpversion(),
					"extensions" => get_loaded_extensions(),
				),
				"webserver" => array(
					"server_software" => $_SERVER['SERVER_SOFTWARE'],
					"server_protocol" => $_SERVER['SERVER_PROTOCOL'],
					"request_time" => $_SERVER['REQUEST_TIME'],
					"request_time_float" => $_SERVER['REQUEST_TIME_FLOAT'],
				),
			),
		) );
	}

	/**
	 * Update token to Actirise API
	 * 
	 * @since 2.0.0
	 * @param string $new_token
	 * @param string|boolean $old_token
	 * @return bool|string
	 */
	public static function update_to_api($new_token, $old_token){
		if (get_option( 'actirise-api_version', '' ) === 'v2') {
			$args = array(
				'domain' => rawurlencode( wp_unslash( $_SERVER['HTTP_HOST'] ) ),
				"token" => $new_token,
				"oldToken" => $old_token === false ? '' : $old_token,
			);
		} else {
			$args = array(
					'domain' => rawurlencode( wp_unslash( $_SERVER['HTTP_HOST'] ) ),
					"new_token" => $new_token,
					"old_token" => $old_token,
			);
		}

		$api_url  = 'wordpress/token';
		$api      = new Api();
		$response = $api->post( 'api', $api_url, $args);

		if ( is_wp_error( $response ) ) {
			Logger::AddLog( 'update_to_api wp error ' . $response->get_error_code(), 'public/include/debug', 'error' );

			return false;
		}

		if ( ! is_array( $response ) ) {
			Logger::AddLog( 'update_to_api is not array', 'public/include/debug', 'error' );

			return false;
		}

		if ( ! isset( $response['token'] ) ) {
			Logger::AddLog( 'update_to_api is not isset', 'public/include/debug', 'error' );

			return false;
		}

		return $response['token'];
	}

	/**
	 * Get list of plugin installed and activated
	 * 
	 * @since 2.0.0
	 * @return array<mixed>
	 */
	private function get_plugin_info() {
		if ( ! function_exists( 'get_plugins' ) ) {
			require_once ABSPATH . 'wp-admin/includes/plugin.php';
		}

		$all_plugins = get_plugins();

		/** @var array<string> $active_plugins */
		$active_plugins = get_option( 'active_plugins', array() );

		$plugins = array();

		foreach ( $all_plugins as $key => $value ) {
			$is_active = in_array( $key, $active_plugins );

			$plugins[ $key ] = array(
					'name'    => $value['Name'],
					'version' => $value['Version'],
					'active'  => $is_active,
			);
		}

		// sort by name and active
		uasort( $plugins, function( $a, $b ) {
			if ( $a['active'] === $b['active'] ) {
				return 0;
			}
			return ( $a['active'] > $b['active'] ) ? -1 : 1;
		} );

		return $plugins;
	}

	/**
	 * Get list of custom fields
	 * 
	 * @since 2.0.0
	 * @return array<string, string>
	 */
	private function get_custom_fields() {
		global $wpdb;

		$cache_key = 'actirise_cache_custom_fields';
		$customFields    = wp_cache_get( $cache_key );

		if ( false === $customFields ) {
			// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery
			$customFields = $wpdb->get_results(
				"SELECT DISTINCT meta_key FROM $wpdb->postmeta WHERE meta_key NOT LIKE '\_%'",
				ARRAY_A
			);

			wp_cache_set( $cache_key, $customFields, '', 3600 );
		}


		if ( $customFields !== null && count( $customFields ) > 0 ) {
			$customFields = array_map(
				function ( $field ) {
					return array(
						'name'  => ucfirst( $field['meta_key'] ),
						'value' => 'customFields_' . $field['meta_key'],
					);
				},
				$customFields
			);
		}

		return $customFields;
	}

	/**
	 * Get theme name
	 * 
	 * @since 2.0.0
	 * @return string
	 */
	private function get_theme_name() {
		if (is_child_theme()) {
			$theme = wp_get_theme()->template;

			return wp_get_theme( $theme )->name;
		} else {
			return wp_get_theme()->name;
		}
	}

	/**
	 * Check if the token is expired
	 * 
	 * @since 2.0.0
	 * @return void
	 */
	private function check_update() {
		if ( get_option( $this->plugin_name . '-debug-last-update' ) === false ) {
			update_option( $this->plugin_name . '-debug-last-update', time() - 3601 );
		}

		$last_update = get_option( $this->plugin_name . '-debug-last-update' );
		$now        = time();
		$diff       = $now - $last_update;

		if ( $diff > 3600 ) {
			$cron = new Cron();
			$cron->refresh_token();

			update_option( $this->plugin_name . '-debug-last-update', time() );
		}
	}

	/**
	 * Check if the token is valid
	 * 
	 * @since 2.0.0
	 * @param string $token
	 * @return boolean
	 */
	private function check_token($token) {
		if ( wp_unslash( $_POST['token'] === null ) ) {
			$error = new WP_Error( '500', 'Post empty' );

			wp_send_json_error( $error );
		}

		$token = wp_unslash( $_POST['token'] );
		$current_token = get_option( $this->plugin_name . '-debug-token', '' );

		if ( $token !== $current_token ) {
			Logger::AddLog( 'check_token token invalide', 'public/include/debug', 'error' );
			$error = new WP_Error( '500', 'Token invalid' );

			wp_send_json_error( $error );
		}

		return true;
	}
}