<?php

namespace YayMail\License;

defined( 'ABSPATH' ) || exit;

/**
 * License
 *
 * @package License
 */
class License {

    protected $slug            = null;
    protected $license_key     = null;
    protected $license_info    = null;
    protected static $instance = null;

    public function __construct( $plugin_slug ) {
        $this->slug         = $plugin_slug;
        $this->license_key  = $this->get_license_key();
        $this->license_info = $this->get_license_info();
    }

    public function update_license_info( $license_info ) {
        unset( $license_info['success'] );
        // $license_info['expires'] = '2020-06-30 23:59:59';
        update_option( $this->slug . '_license_info', $license_info );
    }

    public function update_license_key( $license_key ) {
        update_option( $this->slug . '_license_key', $license_key );
    }

    public function get_license_key() {
        return get_option( $this->slug . '_license_key' );
    }

    public function get_license_info() {
        $default_info = [
            'expires' => 'Not updated',
        ];
        $info         = get_option( $this->slug . '_license_info' );
        $info         = is_string( $info ) ? \json_decode( $info, true ) : $info;
        return $info ? $info : $default_info;
    }

    public function remove_license_key() {
        delete_option( $this->slug . '_license_key' );
    }

    public function remove_license_info() {
        delete_option( $this->slug . '_license_info' );
    }

    public function activate( $license_key ) {
        $licensing_plugin  = new LicensingPlugin( $this->slug );
        $item_id           = $licensing_plugin->get_option( 'item_id' );
        $activate_response = LicenseAPI::activate_license( $item_id, $license_key );
        if ( $activate_response['success'] ) {
            $this->update_license_key( $license_key );
            $this->update_license_info( $activate_response );
            $this->license_key = $license_key;
        }
        LicenseHandler::remove_site_plugin_check();
        $licensing_plugin->update_version_info();
        return $activate_response;
    }

    public function update() {
        $licensing_plugin = new LicensingPlugin( $this->slug );
        $item_id          = $licensing_plugin->get_option( 'item_id' );

        $license_key = $this->get_license_key();

        $response = LicenseAPI::check_license( $item_id, $license_key );
        if ( $response['success'] ) {
            $this->update_license_info( $response );
        } elseif ( empty( $response['is_server_error'] ) ) {
                $this->remove();
        }
        LicenseHandler::remove_site_plugin_check();
        $licensing_plugin->update_version_info();
        return $response;
    }

    public function remove() {
        LicenseHandler::remove_site_plugin_check();
        $this->remove_license_key();
        $this->remove_license_info();
    }

    public function is_active() {
        return $this->license_key;
    }

    public function is_expired() {
        if ( $this->is_active() ) {
            $license_info = $this->get_license_info();
            if ( 'lifetime' !== $license_info['expires'] ) {
                if ( strtotime( $license_info['expires'] ) < time() ) {
                    return true;
                }
            }
        }
        return false;
    }

    public function format_license_key( $number_seperate = 8, $seperate = '-', $number_hidden = 20 ) {
        $license_key        = $this->license_key;
        $license_key_length = strlen( $license_key );
        if ( $license_key_length <= $number_hidden ) {
            return $license_key;
        }
        for ( $i = $license_key_length - $number_hidden; $i < $license_key_length; $i++ ) {
            $license_key[ $i ] = '*';
        }
        $formatted_license_key = '';
        for ( $i = 0; $i < $license_key_length; $i++ ) {
            $formatted_license_key .= $license_key[ $i ];
            if ( 0 === ( ( $i + 1 ) % $number_seperate ) && $i + 1 >= $number_seperate && $i !== $license_key_length - 1 ) {
                $formatted_license_key .= $seperate;
            }
        }
        return $formatted_license_key;
    }

    public function get_renewal_url() {
        $licensing_plugin = new LicensingPlugin( $this->slug );
        $item_id          = $licensing_plugin->get_option( 'item_id' );
        return YAYCOMMERCE_SELLER_SITE_URL . 'checkout/?edd_license_key=' . $this->license_key . '&download_id=' . $item_id;
    }

    public function get_upgrade_url() {
        return YAYCOMMERCE_SELLER_SITE_URL . 'checkout/purchase-history/?view=upgrades&action=manage_licenses&payment_id=' . ( isset( $this->license_info['payment_id'] ) ? $this->license_info['payment_id'] : '' );
    }
}