<?php
/**
 * Smartsupp Live Chat
 *
 * @package   Smartsupp
 * @author    Smartsupp <vladimir@smartsupp.com>
 * Version:   3.2
 * @copyright 2014 smartsupp.com
 * @license   GPL-2.0+
 * @link      http://www.smartsupp.com
 */

use Smartsupp\ChatGenerator;


require_once __DIR__ . "/../vendor/autoload.php";

class Smartsupp
{

	/**
	 * Plugin version
	 *
	 * @since   0.1.0
	 * @var     string
	 */
	const VERSION = '3.6';

	/**
	 * Plugin slug
	 *
	 * @since    0.1.0
	 * @var      string
	 */
	protected $plugin_slug = 'smartsupp';

    /**
     * Plugin text domain
     *
     * @var      string
     */
	protected $plugin_text_domain = 'smartsupp-live-chat';

	/**
	 * Instance of this class.
	 *
	 * @since    0.1.0
	 * @var      object
	 */
	protected static $instance = NULL;


	/**
	 * Initialize the plugin by setting localization and loading public scripts
	 * and styles.
	 *
	 * @since     0.1.0
	 */
	private function __construct()
	{
		// Load plugin text domain
		add_action('init', array($this, 'load_plugin_textdomain'));

		add_action('wp_footer', array($this, 'add_chat_script'));
	}


	/**
	 * Return the plugin slug.
	 *
	 * @since    0.1.0
	 *
	 * @return    string Plugin slug variable.
	 */
	public function get_plugin_slug()
	{
		return $this->plugin_slug;
	}


	/**
	 * Return an instance of this class.
	 *
	 * @since     0.1.0
	 *
	 * @return    $this    A single instance of this class.
	 */
	public static function get_instance()
	{
		// If the single instance hasn't been set, set it now.
		if (NULL == self::$instance) {
			self::$instance = new self;
		}

		return self::$instance;
	}


	/**
	 * Load the plugin text domain for translation.
	 *
	 * @since     0.1.0
	 */
	public function load_plugin_textdomain()
	{
		$domain = $this->plugin_text_domain;
		$locale = apply_filters('plugin_locale', get_locale(), $domain);

		load_textdomain($domain, trailingslashit(WP_LANG_DIR) . $domain . '/' . $domain . '-' . $locale . '.mo');
		load_plugin_textdomain($domain, FALSE, basename(plugin_dir_path(dirname(__FILE__))) . '/languages/');
	}


	public static function is_woocommerce_active()
	{
		return in_array('woocommerce/woocommerce.php', apply_filters('active_plugins', get_option('active_plugins')));
	}


	/**
	 * Insert chat script to WP footer
	 *
	 * @since     0.1.0
	 */
	public function add_chat_script()
	{
		global $wpdb;

		$smartsupp = get_option('smartsupp');

		if ($smartsupp['active'] != '1') {
			return;
		}

		$chat_id = esc_attr($smartsupp['chat-id']);

		if ($chat_id == '' || !is_string($chat_id)) {
			return;
		}

		// set key
		$code = new ChatGenerator($chat_id);

		// set cookie domain
		$code->setCookieDomain(parse_url(get_site_url(), PHP_URL_HOST));

		$dashboardName = '';
		$userEmail = '';

		if (is_user_logged_in()) {
			$user = wp_get_current_user();
			$dashboardName = $user->display_name . ' (' . $user->ID . ')';

			$code->setVariable('userName', __('Username', 'smartsupp-live-chat'), $user->user_login);
			$code->setVariable('email', __('Email', 'smartsupp-live-chat'), $userEmail = $user->user_email);
			$code->setVariable('role', __('Role', 'smartsupp-live-chat'), implode(' ,', $user->roles));
			$code->setVariable('name', __('Name', 'smartsupp-live-chat'), $user->first_name . ' ' . $user->last_name);

			if (self::is_woocommerce_active()) {
				$this->addBillingLocation($code, $user);
				$this->addSpent($code, $user);
				$this->addOrder($code, $user);
			}
		}

		$code->setName($dashboardName);
		$code->setEmail($userEmail);
		$code->setPlatform('WP ' . get_bloginfo('version'));

		$code->render(TRUE);

		if (!empty($smartsupp['optional-code'])) {
			echo '<script>' . stripcslashes($smartsupp['optional-code']) . '</script>';
		}
	}


	private function addBillingLocation(ChatGenerator $code, $user)
	{
		$countryCode = get_user_meta($user->ID, 'billing_country', TRUE);
		$city = get_user_meta($user->ID, 'billing_city', TRUE);
		if ($city || $countryCode) {
			$location = $city . ', ' . $countryCode;
		} else {
			$location = '-';
		}

		$code->setVariable('billingLocation', __('Billing Location', 'smartsupp-live-chat'), $location);
	}


	private function addSpent(ChatGenerator $code, $user)
	{
		global $wpdb;
		if (!get_user_meta($user->ID, '_money_spent', TRUE)) {
			$spent = $wpdb->get_var("SELECT SUM(meta2.meta_value)
				FROM $wpdb->posts as posts

				LEFT JOIN {$wpdb->postmeta} AS meta ON posts.ID = meta.post_id
				LEFT JOIN {$wpdb->postmeta} AS meta2 ON posts.ID = meta2.post_id

				WHERE 	meta.meta_key 		= '_customer_user'
				AND 	meta.meta_value 	= $user->ID
				AND 	posts.post_type 	= 'shop_order'
				AND 	posts.post_status 	= 'wc-completed'
				AND     meta2.meta_key 		= '_order_total'
			");

			update_user_meta($user->ID, '_money_spent', $spent);
		} 
		
		$spent = get_user_meta($user->ID, '_money_spent', TRUE);

		if (!$spent) {
			$spent = 0;
		}

		$formattedSpent = sprintf(get_woocommerce_price_format(), html_entity_decode(get_woocommerce_currency_symbol()), $spent);

		$code->setVariable('spent', __('Spent', 'smartsupp-live-chat'), $formattedSpent);
	}


	private function addOrder(ChatGenerator $code, $user)
	{
		global $wpdb;
		if (!get_user_meta($user->ID, '_order_count', TRUE)) {
			$count = $wpdb->get_var("SELECT COUNT(*)
				FROM $wpdb->posts as posts

				LEFT JOIN {$wpdb->postmeta} AS meta ON posts.ID = meta.post_id

				WHERE 	meta.meta_key 		= '_customer_user'
				AND 	posts.post_type 	= 'shop_order'
				AND 	posts.post_status 	= 'wc-completed'
				AND 	meta_value 			= $user->ID
			");

			update_user_meta($user->ID, '_order_count', $count);
		} 

		$count = get_user_meta($user->ID, '_order_count', TRUE);

		$count = absint($count);

		$code->setVariable('order', __('Orders', 'smartsupp-live-chat'), $count);
	}

}