File subscriptions/class-wc-product-braintree-variable-subscription.php

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<?php
defined( 'ABSPATH' ) || exit();

if ( ! class_exists( 'WC_Product_Simple' ) ) {
    return;
}

/**
 *
 * @since 3.0.0
 * @package Braintree/Classes/Subscriptions
 *
 */
class WC_Product_Braintree_Variable_Subscription extends WC_Product_Variable {

    /**
     *
     * @since 2.6.2
     */
    public static function init() {
        add_filter( 'woocommerce_data_stores', __CLASS__ . '::add_data_store' );
    }

    public function __construct( $product ) {
        $this->extra_data['min_subscription_price']              = 0;
        $this->extra_data['max_subscription_price']              = 0;
        $this->extra_data['min_subscription_price_variation_id'] = 0;
        $this->extra_data['max_subscription_price_variation_id'] = 0;
        $this->extra_data['subscription_one_time_shipping']      = '';

        parent::__construct( $product );

        $this->subscription_period = 'month';

        $this->post = get_post( $this->id );
    }

    public static function add_data_store( $stores ) {
        $stores['product-braintree-variable-subscription'] = 'WC_Product_Variable_Data_Store_CPT';
        return $stores;
    }

    /**
     *
     * @since 2.6.2
     *        Magic method for fetching properties.
     *        This method was overridden in version 2.6.2 because WC 3.0.0+ issues warnings
     *        when calling properties directly.
     *
     * {@inheritDoc}
     *
     * @see WC_Product::__get()
     */
    public function __get( $key ) {
        return $this->get_prop( $key );
    }

    public function __set( $key, $value ) {
        $this->set_prop( $key, $value );
    }

    public function get_price_html( $price = '' ) {
        if ( $this->sync_required() ) {
            self::sync_product( $this );
        }
        if ( $this->min_subscription_price_variation_id !== $this->max_subscription_price_variation_id ) {
            $low_variation  = $this->get_child( $this->min_subscription_price_variation_id );
            $high_variation = $this->get_child( $this->max_subscription_price_variation_id );

            $text = sprintf( __( 'From %1$s to %2$s', 'woo-payment-gateway' ), $low_variation->get_price_html(), $high_variation->get_price_html() );
        } else {
            $variation = $this->get_child( $this->min_subscription_price_variation_id );
            $text      = $variation->get_price_html();
        }
        return $text;
    }

    public function get_available_variation( $variation ) {
        $variation_data = parent::get_available_variation( $variation );
        if ( empty( $variation_data['price_html'] ) ) {
            $variation_data['price_html'] = '<span class="price">' . $variation->get_price_html() . '</span>';
        }
        return $variation_data;
    }

    /**
     *
     * @version 2.6.2 - WC 3.0.0 compatability check added.
     * {@inheritDoc}
     *
     * @see WC_Product_Variable::get_child()
     * @return WC_Product_Braintree_Subscription_Variation
     */
    public function get_child( $child_id ) {
        return new WC_Product_Braintree_Subscription_Variation( $child_id );
    }

    public function get_variation_subscription_prices() {
        $min_price = $this->min_subscription_price;
        $max_price = $this->max_subscription_price;

        // sync if min or max is not saved.
        if ( ! $min_price || ! $max_price ) {
            self::sync_product( $this->id );
        }

        return array(
            'min' => $min_price,
            'max' => $max_price,
        );
    }

    public function get_plans() {
        $var = 'braintree_' . wc_braintree_environment() . '_plans';
        return $this->$var;
    }

    /**
     * Return the subscription signup fee.
     *
     * @return string $fee;
     */
    public function get_signup_fee() {
        return $this->subscription_sign_up_fee ? $this->subscription_sign_up_fee : 0;
    }

    /**
     * Return true if shipping is only charged once for the product.
     * If there is a trial period then shipping must be included
     * in all charges if there is any shipping.
     */
    public function is_one_time_shipping() {
        return $this->needs_shipping() && $this->subscription_one_time_shipping === 'yes' && ! $this->subscription_trial_length;
    }

    /**
     *
     * @param
     *          mixed WC_Product|int $product
     * @param bool $save
     */
    public static function sync_product( $product, $save = true ) {
        $product  = new self( $product );
        $children = get_posts(
            array(
                'post_parent'    => $product->get_id(),
                'posts_per_page' => - 1,
                'post_type'      => 'product_variation',
                'post_status'    => 'publish',
            )
        );

        if ( ! $children ) {
            return;
        }

        $price_types = array( 'subscription_price' );

        foreach ( $price_types as $price_type ) {

            $min_price_type              = null;
            $max_price_type              = null;
            $min_price_type_variation_id = null;
            $max_price_type_variation_id = null;

            foreach ( $children as $child ) {

                $child_price = get_post_meta( $child->ID, '_' . $price_type, true );

                // if the min price_type is null or it's greater than the child_pricetype, change it's value to the
                // child_price.
                if ( is_null( $min_price_type ) || $min_price_type > $child_price ) {
                    $min_price_type              = $child_price;
                    $min_price_type_variation_id = $child->ID;
                }

                if ( is_null( $max_price_type ) || $max_price_type < $child_price ) {
                    $max_price_type              = $child_price;
                    $max_price_type_variation_id = $child->ID;
                }
            }

            $product->{"set_min_$price_type"}( $min_price_type );
            $product->{"set_max_$price_type"}( $max_price_type );
            $product->{"set_min_{$price_type}_variation_id"}( $min_price_type_variation_id );
            $product->{"set_max_{$price_type}_variation_id"}( $max_price_type_variation_id );
            $product->save();
        }
    }

    /**
     * Check to see if the product needs to be synced.
     */
    public function sync_required() {
        return ! $this->min_subscription_price || ! $this->max_subscription_price;
    }

    public function add_to_cart_handler( $product_type, $product ) {
        if ( $this->get_type() === $product_type ) {
            $product_type = 'variable';
        }
        return $product_type;
    }

    public function get_type() {
        return 'braintree-variable-subscription';
    }

    public function get_product_type() {
        return $this->product_type;
    }

    public function set_min_subscription_price( $price ) {
        $this->min_subscription_price = $price;
    }

    public function set_max_subscription_price( $price ) {
        $this->max_subscription_price = $price;
    }

    public function set_min_subscription_price_variation_id( $id ) {
        $this->min_subscription_price_variation_id = $id;
    }

    public function set_max_subscription_price_variation_id( $id ) {
        $this->max_subscription_price_variation_id = $id;
    }

    public function set_subscription_one_time_shipping( $one_time_shipping ) {
        $this->subscription_one_time_shipping = $one_time_shipping;
    }

    public function get_min_subscription_price() {
        return $this->min_subscription_price;
    }

    public function get_max_subscription_price() {
        return $this->max_subscription_price;
    }

    public function get_min_subscription_price_variation_id() {
        return $this->min_subscription_price_variation_id;
    }

    public function get_max_subscription_price_variation_id() {
        return $this->max_subscription_price_variation_id;
    }

    public function get_subscription_one_time_shipping() {
        return $this->subscription_one_time_shipping;
    }
}
WC_Product_Braintree_Variable_Subscription::init();

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