<?php
namespace Affilizz\Util;

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

class Analytics {
	use \Affilizz\Util\Generic;

	/**
	 * Gets an array of data for the analytics on Affilizz's side.
	 * @author Affilizz <wordpress@affilizz.com>
	 * @return array A list of key-value pairs containing the analytics data.
	 */
	public static function all() {
		global $wp_version, $tinymce_version, $required_php_version, $required_mysql_version, $wpdb;

		// Retrieve objects needed to build the analytics array
		$theme                  = wp_get_theme();
		$locale                 = explode( '_', get_locale() );
		$rendering_modes        = array(
			'webcomponent' => __( 'Webcomponent', 'affilizz' ),
			'hybrid'       => __( 'Hybrid (server-side rendering + webcomponent)', 'affilizz' ),
		);
		$current_rendering_mode = \Affilizz\Core::get_current_rendering_mode();
		$current_rendering_mode = isset( $rendering_modes[ $current_rendering_mode ] ) ? $rendering_modes[ $current_rendering_mode ] : __( 'N/A', 'affilizz' );

		$javascript_status = get_option( 'affilizz_disable_javascript', __( 'N/A', 'affilizz' ) );
		$javascript_status = ( $javascript_status == 1 || $javascript_status == '1' )
			? __( 'Enabled', 'affilizz' )
			: __( 'Disabled', 'affilizz' );

		$selective_enqueing = get_option( 'affilizz_selective_enqueue', __( 'N/A', 'affilizz' ) );
		$selective_enqueing = ( $selective_enqueing == 1 || $selective_enqueing == '1' )
			? __( 'Enabled', 'affilizz' )
			: __( 'Disabled', 'affilizz' );

		$javascript_debug_mode = get_option( 'affilizz_javascript_debug_mode', __( 'N/A', 'affilizz' ) );
		$javascript_debug_mode = ( $javascript_debug_mode == 1 || $javascript_debug_mode == '1' )
			? __( 'Enabled', 'affilizz' )
			: __( 'Disabled', 'affilizz' );

		$plugin_data = array(
			'RequiresPHP' => __( 'N/A', 'affilizz' ),
			'RequiresWP'  => __( 'N/A', 'affilizz' ),
			'Version'     => __( 'N/A', 'affilizz' ),
		);
		if ( ! function_exists( 'get_plugin_data' ) ) {
			require_once ABSPATH . 'wp-admin/includes/plugin.php';
		}
		if ( function_exists( 'get_plugin_data' ) ) {
			$plugin_data          = get_plugin_data( trailingslashit( AFFILIZZ_DIRECTORY ) . 'init.php' );
			$required_php_version = $plugin_data['RequiresPHP'];
			$required_wp_version  = $plugin_data['RequiresWP'];
		}

		// Analytics data array building
		$data = array(
			'operating_system'               => array(
				'key'   => __( 'Operating system', 'affilizz' ),
				'value' => explode( ' ', trim( php_uname() ) )[0],
			),
			'server_flavor'                  => array(
				'key'   => __( 'PHP web server', 'affilizz' ),
				'value' => self::get_server_flavor(),
			),
			'php_version'                    => array(
				'key'   => __( 'PHP version', 'affilizz' ),
				'value' => self::clean_version( phpversion() ),
			),
			'required_php_version'           => array(
				'key'   => __( 'Required PHP version', 'affilizz' ),
				'value' => self::clean_version( $required_php_version ),
			),
			'mysql_version'                  => array(
				'key'   => __( 'MySQL version', 'affilizz' ),
				'value' => $wpdb->db_version(),
			),
			'required_mysql_version'         => array(
				'key'   => __( 'Required MySQL version', 'affilizz' ),
				'value' => self::clean_version( $required_mysql_version ),
			),
			'wordpress_version'              => array(
				'key'   => __( 'WordPress version', 'affilizz' ),
				'value' => self::clean_version( $wp_version ),
			),
			'required_wordpress_version'     => array(
				'key'   => __( 'Required WordPress version', 'affilizz' ),
				'value' => self::clean_version( $required_wp_version ),
			),
			'tinymce_version'                => array(
				'key'   => __( 'TinyMCE version', 'affilizz' ),
				'value' => self::clean_version( $tinymce_version ),
			),
			'theme_name'                     => array(
				'key'   => __( 'Theme name', 'affilizz' ),
				'value' => $theme->get( 'Name' ),
			),
			'active_plugins'                 => array(
				'key'   => __( 'Active plugins', 'affilizz' ),
				'value' => self::get_active_plugins_readable_list(),
			),
			'locale'                         => array(
				'key'   => __( 'Current locale', 'affilizz' ),
				'value' => ( empty( $locale[0] ) ? __( 'Unknown locale', 'affilizz' ) : $locale[0] ),
			),
			'multisite'                      => array(
				'key'   => __( 'Multisite installation', 'affilizz' ),
				'value' => is_multisite() ? __( 'Yes', 'affilizz' ) : __( 'No', 'affilizz' ),
			),
			'document_root'                  => array(
				'key'   => __( 'Document root', 'affilizz' ),
				'value' => ( ! empty( $_SERVER['DOCUMENT_ROOT'] ) ? trailingslashit( sanitize_text_field( wp_unslash( $_SERVER['DOCUMENT_ROOT'] ) ) ) : __( 'N/A', 'affilizz' ) ),
			),
			'affilizz_version'               => array(
				'key'   => __( 'Affilizz version', 'affilizz' ),
				'value' => ( ! empty( AFFILIZZ_VERSION ) ? AFFILIZZ_VERSION : __( 'N/A', 'affilizz' ) ),
			),
			'affilizz_assets_build_version'  => array(
				'key'   => __( 'Affilizz assets version', 'affilizz' ),
				'value' => ( ! empty( AFFILIZZ_ASSETS_BUILD_VERSION ) ? AFFILIZZ_ASSETS_BUILD_VERSION : __( 'N/A', 'affilizz' ) ),
			),
			'affilizz_channel'               => array(
				'key'   => __( 'Channel', 'affilizz' ),
				'value' => get_option( 'affilizz_channel', __( 'N/A', 'affilizz' ) ),
			),
			'affilizz_channel_label'         => array(
				'key'   => __( 'Channel label', 'affilizz' ),
				'value' => get_option( 'affilizz_channel_label', __( 'N/A', 'affilizz' ) ),
			),
			'affilizz_organization'          => array(
				'key'   => __( 'Organization', 'affilizz' ),
				'value' => get_option( 'affilizz_organization', __( 'N/A', 'affilizz' ) ),
			),
			'affilizz_organization_label'    => array(
				'key'   => __( 'Organization label', 'affilizz' ),
				'value' => get_option( 'affilizz_organization_label', __( 'N/A', 'affilizz' ) ),
			),
			'affilizz_media'                 => array(
				'key'   => __( 'Media', 'affilizz' ),
				'value' => get_option( 'affilizz_media', __( 'N/A', 'affilizz' ) ),
			),
			'affilizz_media_label'           => array(
				'key'   => __( 'Media label', 'affilizz' ),
				'value' => get_option( 'affilizz_media_label', __( 'N/A', 'affilizz' ) ),
			),
			'affilizz_api_key'               => array(
				'key'   => __( 'API Key', 'affilizz' ),
				'value' => get_option( 'affilizz_api_key', __( 'N/A', 'affilizz' ) ),
			),
			'affilizz_proxy_uuid'            => array(
				'key'   => __( 'Current proxy UUID', 'affilizz' ),
				'value' => get_option( 'affilizz_proxy_uuid', __( 'N/A', 'affilizz' ) ),
			),
			'affilizz_rendering_mode'        => array(
				'key'   => __( 'Affilizz rendering mode', 'affilizz' ),
				'value' => $current_rendering_mode,
			),
			'affilizz_disable_javascript'    => array(
				'key'   => __( 'Affilizz javascript file injection', 'affilizz' ),
				'value' => $javascript_status,
			),
			'affilizz_selective_enqueue'     => array(
				'key'   => __( 'Selective assets load', 'affilizz' ),
				'value' => $selective_enqueing,
			),
			'affilizz_javascript_debug_mode' => array(
				'key'   => __( 'JavaScript debug mode', 'affilizz' ),
				'value' => $javascript_debug_mode,
			),
		);

		return $data;
	}

	private static function clean_version( $version_string = '0' ) {
		return preg_replace( '@^(\d\.\d+).*@', '\1', $version_string );
	}

	private static function get_server_flavor() {
		global $is_nginx, $is_apache, $is_iis7, $is_IIS;
		if ( $is_nginx ) {
			return 'NGINX';
		}
		if ( $is_apache ) {
			return 'Apache';
		}
		if ( $is_iis7 ) {
			return 'IIS 7';
		}
		if ( $is_IIS ) {
			return 'IIS';
		}

		return __( 'Unknown server flavor', 'affilizz' );
	}

	private static function get_active_plugins_readable_list() {
		// Get the plugin objects
		$return_array = array();
		foreach ( get_plugins() as $plugin => $plugin_metadata ) {
			if ( ! is_plugin_active( $plugin ) ) {
				continue;
			}

			$return_array[ $plugin ] = trim(
				implode(
					' ',
					array(
						$plugin_metadata['Name'],
						$plugin_metadata['Version'],
						/* translators: %s: whether the plugin is network activated. */
						( is_multisite() ? '(' . sprintf( __( 'Network : %s', 'affilizz' ), ( $plugin_metadata['Network'] ) ? __( 'Yes', 'affilizz' ) : __( 'No', 'affilizz' ) ) . ')' : '' ),
					)
				) 
			);
		}

		return implode( ', ', $return_array );
	}
}