<?php

/**
 * The file that defines the core plugin class
 *
 * A class definition that includes attributes and functions used across both the
 * public-facing side of the site and the admin area.
 *
 * @link       http://socketlabs.com
 * @since      1.0.0
 *
 * @package    Socketlabs
 * @subpackage Sl_SocketlabsSignup/includes
 */

/**
 * The core plugin class.
 *
 * This is used to define internationalization, admin-specific hooks, and
 * public-facing site hooks.
 *
 * Also maintains the unique identifier of this plugin as well as the current
 * version of the plugin.
 *
 * @since      1.0.0
 * @package    Socketlabs
 * @subpackage Socketlabs/includes
 * @author     SocketLabs Dev Team <support@socketlabs.com>
 */
class Socketlabs {

    /**
     * The loader that's responsible for maintaining and registering all hooks that power
     * the plugin.
     *
     * @since    1.0.0
     * @access   protected
     * @var      Socketlabs_Loader    $loader    Maintains and registers all hooks for the plugin.
     */
    protected $loader;

    /**
     * The unique identifier of this plugin.
     *
     * @since    1.0.0
     * @access   protected
     * @var      string    $plugin_name    The string used to uniquely identify this plugin.
     */
    protected $plugin_name;

    /**
     * The current version of the plugin.
     *
     * @since    1.0.0
     * @access   protected
     * @var      string    $version    The current version of the plugin.
     */
    protected $version;

    /**
     * Define the core functionality of the plugin.
     *
     * Set the plugin name and the plugin version that can be used throughout the plugin.
     * Load the dependencies, define the locale, and set the hooks for the admin area and
     * the public-facing side of the site.
     *
     * @since    1.0.0
     */
    public function __construct() {
        
        $this->plugin_name = SOCKETLABS_OPTION_GROUP; //So happens to be the same as the option group name.
        
        register_setting( SOCKETLABS_OPTION_GROUP, $this->plugin_name);
        
        if ( defined( 'SOCKETLABS_VERSION' ) ) {
            $this->version = SOCKETLABS_VERSION;
        } else {
            $this->version = '1.0.0';
        }

        $this->load_dependencies();
        $this->set_locale();
        $this->define_admin_hooks();
        $this->define_public_hooks();
    }

    /**
     * Load the required dependencies for this plugin.
     *
     * Include the following files that make up the plugin:
     *
     * - Socketlabs_Loader. Orchestrates the hooks of the plugin.
     * - Socketlabs_i18n. Defines internationalization functionality.
     * - Socketlabs_Admin. Defines all hooks for the admin area.
     * - Socketlabs_Public. Defines all hooks for the public side of the site.
     *
     * Create an instance of the loader which will be used to register the hooks
     * with WordPress.
     *
     * @since    1.0.0
     * @access   private
     */
    private function load_dependencies() {

        /**
         * The class responsible for orchestrating the actions and filters of the
         * core plugin.
         */
        require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/class-socketlabs-loader.php';

        /**
         * The class responsible for defining internationalization functionality
         * of the plugin.
         */
        require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/class-socketlabs-i18n.php';

        /**
         * The class responsible for defining all actions that occur in the admin area.
         */
        require_once plugin_dir_path( dirname( __FILE__ ) ) . 'admin/class-socketlabs-admin.php';

        /**
         * The class responsible for defining all actions that occur in the public-facing
         * side of the site.
         */
        require_once plugin_dir_path( dirname( __FILE__ ) ) . 'public/class-socketlabs-public.php';
        
        /**
         * The api status constants
         */
        require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/class-socketlabs-api-status.php';
        
        /**
         * Service that will assemble and send an injection api message given a wordpress email message
         */
        require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/class-socketlabs-mailer.php';
        
        /**
         * Helper functions for file managment
         */
        require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/class-socketlabs-io.php';
        
        
        $this->loader = new Socketlabs_Loader();

    }

    /**
     * Define the locale for this plugin for internationalization.
     *
     * Uses the Socketlabs_i18n class in order to set the domain and to register the hook
     * with WordPress.
     *
     * @since    1.0.0
     * @access   private
     */
    private function set_locale() {

        $plugin_i18n = new Socketlabs_i18n();

        $this->loader->add_action( 'plugins_loaded', $plugin_i18n, 'load_plugin_textdomain' );

    }

    /**
     * Register all of the hooks related to the admin area functionality
     * of the plugin.
     *
     * @since    1.0.0
     * @access   private
     */
    private function define_admin_hooks() {
        $plugin_admin = new Socketlabs_Admin( $this->get_plugin_name(), $this->get_version() );
        
        $this->loader->add_action( 'admin_enqueue_scripts', $plugin_admin, 'enqueue_styles' );
        $this->loader->add_action( 'admin_enqueue_scripts', $plugin_admin, 'enqueue_scripts' );
        $this->loader->add_action( 'admin_menu', $plugin_admin, 'admin_menu' );
    }

    /**
     * Register all of the hooks related to the public-facing functionality
     * of the plugin.
     *
     * @since    1.0.0
     * @access   private
     */
    private function define_public_hooks() {

        $plugin_public = new Socketlabs_Public( $this->get_plugin_name(), $this->get_version() );

        $this->loader->add_action( 'wp_enqueue_scripts', $plugin_public, 'enqueue_styles' );
        $this->loader->add_action( 'wp_enqueue_scripts', $plugin_public, 'enqueue_scripts' );

    }

    /**
     * Run the loader to execute all of the hooks with WordPress.
     *
     * @since    1.0.0
     */
    public function run() {
        $this->loader->run();
    }

    /**
     * The name of the plugin used to uniquely identify it within the context of
     * WordPress and to define internationalization functionality.
     *
     * @since     1.0.0
     * @return    string    The name of the plugin.
     */
    public function get_plugin_name() {
        return $this->plugin_name;
    }

    /**
     * The reference to the class that orchestrates the hooks with the plugin.
     *
     * @since     1.0.0
     * @return    Sl_Signup_Loader    Orchestrates the hooks of the plugin.
     */
    public function get_loader() {
        return $this->loader;
    }

    /**
     * Retrieve the version number of the plugin.
     *
     * @since     1.0.0
     * @return    string    The version number of the plugin.
     */
    public function get_version() {
        return $this->version;
    }

    /**
     * Retrieve the SocketLabs api key.
     *
     * @since     1.0.0
     * @return    string
     */
    public static function get_api_key(){
        $options = get_option( SOCKETLABS_OPTION_GROUP );
        return isset($options[SOCKETLABS_API_KEY]) ? $options[SOCKETLABS_API_KEY] : '';
    }

    /**
     * Retrieve the server id.
     *
     * @since     1.0.0
     * @return    number
     */
    public static function get_server_id(){
        $options = get_option( SOCKETLABS_OPTION_GROUP );
        return isset($options[SOCKETLABS_SERVER_ID]) ? $options[SOCKETLABS_SERVER_ID] : '';
    }

    /**
     * Retrieve the the api status.
     *
     * @since     1.0.0
     * @return    string 
     */
    public static function get_api_status(){
        
        //Check to see if credentials are set
        $serverId = Socketlabs::get_server_id();
        $apiKey = Socketlabs::get_api_key();

        if(!defined("SOCKETLABS_API_STATUS") && (empty($serverId) || empty($apiKey))){
            define("SOCKETLABS_API_STATUS", Socketlabs_Api_Status::$NO_CREDENTIALS);
        }

        //Attempt an api call with the available credentials
        if(!defined("SOCKETLABS_API_STATUS")){
            $headers = array(
                'Content-Type' => 'application/json',
                'Accept' => 'application/json'
            );

            // If apiKey is 61 characters, use Bearer token in Authorization header
            if (strlen($apiKey) === 61) {
                $headers['Authorization'] = 'Bearer ' . $apiKey;		
                $payload = (object) array(
                    "ServerId" => $serverId,
                    "Messages" => array((object)array())
                );
            } else {
                // Otherwise, include apiKey in the payload
                $payload = (object) array(
                    "ServerId" => $serverId,
                    "Messages" => array((object)array()),
                    "ApiKey" => $apiKey
                );
            }

            $response = wp_remote_post( SOCKETLABS_INJECTION_URL, array(
                'method' => 'POST',
                'body' => json_encode($payload),
                'headers' => $headers
            ));
            
            if ( is_wp_error( $response ) ) {
                define("SOCKETLABS_API_STATUS", Socketlabs_Api_Status::$NETWORK_ERROR);
            } else {
                $jsonResponse = json_decode($response['body']);

                if(isset($jsonResponse->ErrorCode)){
                    $errorCode = $jsonResponse->ErrorCode;
                    switch(strtolower($errorCode)){
                        case "invalidauthentication":
                        define("SOCKETLABS_API_STATUS", SocketLabs_Api_Status::$BAD_CREDENTIALS);
                        break;
                        case "novalidrecipients":
                        define("SOCKETLABS_API_STATUS", Socketlabs_Api_Status::$SUCCESS);
                        break;
                        default : 
                        define("SOCKETLABS_API_STATUS", $errorCode);
                    }
                }
                else{
                    define("SOCKETLABS_API_STATUS", SocketLabs_Api_Status::$UNKNOWN);
                }
            }
        }
        return SOCKETLABS_API_STATUS;    
    }
}