<?php
namespace ADCmdr;

/**
 * Structured system information, shared by the System Status tab and
 * (in part) anonymous usage tracking.
 *
 * Each section returns an array of machine_key => array( 'label' => string, 'value' => mixed ).
 */
class SystemInfo {

	/**
	 * Ad Commander plugin information.
	 *
	 * @return array
	 */
	public static function adcommander() {
		$info = array(
			'version'    => array(
				'label' => __( 'Version', 'ad-commander' ),
				'value' => AdCommander::version(),
			),
			'db_version' => array(
				'label' => __( 'Database Version', 'ad-commander' ),
				'value' => Util::get_dbversion(),
			),
			'pro_loaded' => array(
				'label' => __( 'Pro Loaded', 'ad-commander' ),
				'value' => ProBridge::instance()->is_pro_loaded(),
			),
		);

		if ( ProBridge::instance()->is_pro_loaded() ) {
			$info['pro_version'] = array(
				'label' => __( 'Pro Version', 'ad-commander' ),
				'value' => defined( 'ADCMDR_PRO_LOADED' ) && class_exists( '\ADCmdr\AdCommanderPro' ) ? \ADCmdr\AdCommanderPro::version() : '—',
			);

			$info['pro_license'] = array(
				'label' => __( 'Pro License', 'ad-commander' ),
				'value' => ProBridge::instance()->is_pro_license_added(),
			);
		}

		return $info;
	}

	/**
	 * WordPress environment.
	 *
	 * @return array
	 */
	public static function environment() {
		return array(
			'home_url'     => array(
				'label' => __( 'Home URL', 'ad-commander' ),
				'value' => home_url(),
			),
			'site_url'     => array(
				'label' => __( 'Site URL', 'ad-commander' ),
				'value' => site_url(),
			),
			'rest_url'     => array(
				'label' => __( 'REST API Base URL', 'ad-commander' ),
				'value' => rest_url(),
			),
			'wp_version'   => array(
				'label' => __( 'WordPress Version', 'ad-commander' ),
				'value' => get_bloginfo( 'version' ),
			),
			'multisite'    => array(
				'label' => __( 'WordPress Multisite', 'ad-commander' ),
				'value' => is_multisite(),
			),
			'wp_memory'    => array(
				'label' => __( 'WordPress Memory Limit', 'ad-commander' ),
				'value' => WP_MEMORY_LIMIT,
			),
			'debug_mode'   => array(
				'label' => __( 'WordPress Debug Mode', 'ad-commander' ),
				'value' => defined( 'WP_DEBUG' ) && WP_DEBUG,
			),
			'debug_log'    => array(
				'label' => __( 'WordPress Debug Log', 'ad-commander' ),
				'value' => defined( 'WP_DEBUG_LOG' ) && WP_DEBUG_LOG,
			),
			'wp_cron'      => array(
				'label' => __( 'WordPress Cron', 'ad-commander' ),
				'value' => ! ( defined( 'DISABLE_WP_CRON' ) && DISABLE_WP_CRON ),
			),
			'locale'       => array(
				'label' => __( 'WordPress Locale', 'ad-commander' ),
				'value' => get_locale(),
			),
		);
	}

	/**
	 * Active theme details.
	 *
	 * @return array
	 */
	public static function theme() {
		$theme = wp_get_theme();

		$info = array(
			'name'    => array(
				'label' => __( 'Theme Name', 'ad-commander' ),
				'value' => $theme->get( 'Name' ),
			),
			'version' => array(
				'label' => __( 'Theme Version', 'ad-commander' ),
				'value' => $theme->get( 'Version' ),
			),
			'author'  => array(
				'label' => __( 'Theme Author', 'ad-commander' ),
				'value' => wp_strip_all_tags( (string) $theme->get( 'Author' ) ),
			),
		);

		if ( $theme->parent() ) {
			$info['parent_name'] = array(
				'label' => __( 'Parent Theme', 'ad-commander' ),
				'value' => $theme->parent()->get( 'Name' ),
			);

			$info['parent_version'] = array(
				'label' => __( 'Parent Theme Version', 'ad-commander' ),
				'value' => $theme->parent()->get( 'Version' ),
			);
		}

		return $info;
	}

	/**
	 * Active plugins: name => array with author/version detail.
	 *
	 * @return array
	 */
	public static function active_plugins() {
		if ( ! function_exists( 'get_plugins' ) ) {
			require_once ABSPATH . 'wp-admin/includes/plugin.php';
		}

		$active_plugins = get_option( 'active_plugins', array() );
		$all_plugins    = get_plugins();
		$plugins        = array();

		foreach ( $active_plugins as $plugin_path ) {
			if ( ! isset( $all_plugins[ $plugin_path ] ) ) {
				continue;
			}

			$plugin = $all_plugins[ $plugin_path ];

			$plugins[ $plugin_path ] = array(
				'name'    => $plugin['Name'],
				'author'  => isset( $plugin['AuthorName'] ) ? $plugin['AuthorName'] : '',
				'version' => $plugin['Version'],
			);
		}

		return $plugins;
	}

	/**
	 * Server environment.
	 *
	 * @return array
	 */
	public static function server() {
		return array(
			'web_server'         => array(
				'label' => __( 'Web Server', 'ad-commander' ),
				'value' => isset( $_SERVER['SERVER_SOFTWARE'] ) ? sanitize_text_field( wp_unslash( $_SERVER['SERVER_SOFTWARE'] ) ) : __( 'Unknown', 'ad-commander' ),
			),
			'php_version'        => array(
				'label' => __( 'PHP Version', 'ad-commander' ),
				'value' => function_exists( 'phpversion' ) ? phpversion() : __( 'Unknown', 'ad-commander' ),
			),
			'php_memory_limit'   => array(
				'label' => __( 'PHP Memory Limit', 'ad-commander' ),
				'value' => function_exists( 'ini_get' ) ? ini_get( 'memory_limit' ) : __( 'Unknown', 'ad-commander' ),
			),
			'php_max_execution'  => array(
				'label' => __( 'PHP Max Execution Time', 'ad-commander' ),
				'value' => function_exists( 'ini_get' ) ? ini_get( 'max_execution_time' ) : __( 'Unknown', 'ad-commander' ),
			),
			'php_max_upload'     => array(
				'label' => __( 'PHP Max Upload Size', 'ad-commander' ),
				'value' => function_exists( 'ini_get' ) ? ini_get( 'upload_max_filesize' ) : __( 'Unknown', 'ad-commander' ),
			),
			'php_max_post'       => array(
				'label' => __( 'PHP Max Post Size', 'ad-commander' ),
				'value' => function_exists( 'ini_get' ) ? ini_get( 'post_max_size' ) : __( 'Unknown', 'ad-commander' ),
			),
			'curl'               => array(
				'label' => __( 'cURL Enabled', 'ad-commander' ),
				'value' => function_exists( 'curl_version' ) ? __( 'Yes', 'ad-commander' ) . ' (' . curl_version()['version'] . ')' : __( 'No', 'ad-commander' ),
			),
			'openssl'            => array(
				'label' => __( 'OpenSSL', 'ad-commander' ),
				'value' => defined( 'OPENSSL_VERSION_TEXT' ) ? OPENSSL_VERSION_TEXT : __( 'No', 'ad-commander' ),
			),
		);
	}

	/**
	 * Database environment.
	 *
	 * @return array
	 */
	public static function database() {
		global $wpdb;

		return array(
			'system'    => array(
				'label' => __( 'Database System', 'ad-commander' ),
				'value' => ! empty( $wpdb->db_server_info() ) ? $wpdb->db_server_info() : __( 'Unknown', 'ad-commander' ),
			),
			'version'   => array(
				'label' => __( 'Database Version', 'ad-commander' ),
				'value' => $wpdb->db_version(),
			),
			'charset'   => array(
				'label' => __( 'Database Character Set', 'ad-commander' ),
				'value' => ! empty( $wpdb->charset ) ? $wpdb->charset : __( 'Unknown', 'ad-commander' ),
			),
			'collation' => array(
				'label' => __( 'Database Collation', 'ad-commander' ),
				'value' => ! empty( $wpdb->collate ) ? $wpdb->collate : __( 'Unknown', 'ad-commander' ),
			),
			'prefix'    => array(
				'label' => __( 'Database Prefix', 'ad-commander' ),
				'value' => $wpdb->prefix,
			),
		);
	}

	/**
	 * Date and time.
	 *
	 * @return array
	 */
	public static function datetime() {
		return array(
			'timezone'    => array(
				'label' => __( 'WordPress Timezone', 'ad-commander' ),
				'value' => wp_timezone_string(),
			),
			'server_time' => array(
				'label' => __( 'Server Time (UTC)', 'ad-commander' ),
				'value' => gmdate( 'Y-m-d H:i:s' ),
			),
			'local_time'  => array(
				'label' => __( 'Local Time', 'ad-commander' ),
				'value' => wp_date( 'Y-m-d H:i:s' ),
			),
		);
	}
}