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Edit File: class-fs-pricing.php

<?php
	/**
	 * @package     Freemius for EDD Add-On
	 * @copyright   Copyright (c) 2015, Freemius, Inc.
	 * @license     https://www.gnu.org/licenses/gpl-3.0.html GNU General Public License Version 3
	 * @since       1.0.0
	 */

if ( ! defined( 'ABSPATH' ) ) {
		exit;
	}

class FS_Pricing extends FS_Entity {

#region Properties

/**
		 * @var number
		 */
		public $plan_id;
		/**
		 * @var int
		 */
		public $licenses;
		/**
		 * @var null|float
		 */
		public $monthly_price;
		/**
		 * @var null|float
		 */
		public $annual_price;
		/**
		 * @var null|float
		 */
		public $lifetime_price;
        /**
         * @author Leo Fajardo (@leorw)
         * @since 2.3.1
         *
         * @var string One of the following: `usd`, `gbp`, `eur`.
         */
        public $currency;

#endregion Properties

/**
		 * @param object|bool $pricing
		 */
		function __construct( $pricing = false ) {
			parent::__construct( $pricing );
		}

static function get_type() {
			return 'pricing';
		}

/**
		 * @author Vova Feldman (@svovaf)
		 * @since  1.1.8
		 *
		 * @return bool
		 */
		function has_monthly() {
			return ( is_numeric( $this->monthly_price ) && $this->monthly_price > 0 );
		}

/**
		 * @author Vova Feldman (@svovaf)
		 * @since  1.1.8
		 *
		 * @return bool
		 */
		function has_annual() {
			return ( is_numeric( $this->annual_price ) && $this->annual_price > 0 );
		}

/**
		 * @author Vova Feldman (@svovaf)
		 * @since  1.1.8
		 *
		 * @return bool
		 */
		function has_lifetime() {
			return ( is_numeric( $this->lifetime_price ) && $this->lifetime_price > 0 );
		}

/**
		 * Check if unlimited licenses pricing.
		 *
		 * @author Vova Feldman (@svovaf)
		 * @since  1.1.8
		 *
		 * @return bool
		 */
		function is_unlimited() {
			return is_null( $this->licenses );
		}

/**
		 * Check if pricing has more than one billing cycle.
		 *
		 * @author Vova Feldman (@svovaf)
		 * @since  1.1.8
		 *
		 * @return bool
		 */
		function is_multi_cycle() {
			$cycles = 0;
			if ( $this->has_monthly() ) {
				$cycles ++;
			}
			if ( $this->has_annual() ) {
				$cycles ++;
			}
			if ( $this->has_lifetime() ) {
				$cycles ++;
			}

return $cycles > 1;
		}

/**
		 * Get annual over monthly discount.
		 *
		 * @author Vova Feldman (@svovaf)
		 * @since  1.1.8
		 *
		 * @return int
		 */
		function annual_discount_percentage() {
			return floor( $this->annual_savings() / ( $this->monthly_price * 12 * ( $this->is_unlimited() ? 1 : $this->licenses ) ) * 100 );
		}

/**
		 * Get annual over monthly savings.
		 *
		 * @author Vova Feldman (@svovaf)
		 * @since  1.1.8
		 *
		 * @return float
		 */
		function annual_savings() {
			return ( $this->monthly_price * 12 - $this->annual_price ) * ( $this->is_unlimited() ? 1 : $this->licenses );
		}

/**
         * @author Leo Fajardo (@leorw)
         * @since  2.3.1
         *
         * @return bool
         */
        function is_usd() {
            return ( 'usd' === $this->currency );
        }
	}

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