main

<?php

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class WCML_Multi_Currency_Coupons{

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    private $wc_27_coupons;

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    public function __construct() {

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        // WooCommerce 2.7 + compatibility

        $this->wc_27_coupons = method_exists( 'WC_Coupon', 'get_amount' );

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        add_action('woocommerce_coupon_loaded', array($this, 'filter_coupon_data'));

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    }

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    public function filter_coupon_data($coupon){

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        // Alias compatibility

        if( !$this->wc_27_coupons ) {

            if ( isset( $coupon->amount ) && ! isset( $coupon->coupon_amount ) ) {

                $coupon->coupon_amount = $coupon->amount;

            }

            if ( isset( $coupon->type ) && ! isset( $coupon->discount_type ) ) {

                $coupon->discount_type = $coupon->type;

            }

        }

        //

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        $discount_type = $this->wc_27_coupons ? $coupon->get_discount_type() : $coupon->discount_type;

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        if( $discount_type==='fixed_cart' || $discount_type==='fixed_product' ){

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            if( $this->wc_27_coupons ) {

                $coupon->set_amount( apply_filters( 'wcml_raw_price_amount', $coupon->get_amount() ) );

            }else{ // backward compatibility

                $coupon->coupon_amount = apply_filters( 'wcml_raw_price_amount', $coupon->coupon_amount );

            }

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        }

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        if( $this->wc_27_coupons ){

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            $coupon->set_minimum_amount( apply_filters('wcml_raw_price_amount', $coupon->get_minimum_amount() ) );

            $coupon->set_maximum_amount( apply_filters('wcml_raw_price_amount', $coupon->get_maximum_amount() ) );

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        } else { // backward compatibility

            $coupon->minimum_amount = apply_filters('wcml_raw_price_amount', $coupon->minimum_amount);

            $coupon->maximum_amount = apply_filters('wcml_raw_price_amount', $coupon->maximum_amount);

        }

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    }

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}