QuantityManagementService.php
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<?php namespace MeowCrew\RoleAndCustomerBasedPricing\Services;
use MeowCrew\RoleAndCustomerBasedPricing\PricingRulesDispatcher;
use WC_Product_Simple;
class QuantityManagementService {
public function __construct() {
add_filter( 'woocommerce_quantity_input_args', function ( $args ) {
global $product;
if ( $product && $product instanceof WC_Product_Simple ) {
$pricingRule = PricingRulesDispatcher::dispatchRule( $product->get_id(), null, null, false );
if ( $pricingRule ) {
$min = $pricingRule->getMinimum();
$max = $pricingRule->getMaximum();
$groupOf = $pricingRule->getGroupOf();
if ( '' !== $min ) {
$min = max( 1, $min - $this->getProductCartQuantity( $product->get_id() ) );
$min = max( $groupOf, $min );
$args['min_value'] = $min;
}
if ( $max ) {
$max = max( 1, $max - $this->getProductCartQuantity( $product->get_id() ) );
$max = max( $groupOf, $max );
$args['max_value'] = $max;
}
if ( $groupOf ) {
$args['step'] = $groupOf;
}
}
}
return $args;
}, 999999 );
add_filter( 'woocommerce_add_to_cart_validation', function ( $passed, $productId, $qty, $variationId = null ) {
// Do not show additional notices if there are already notices
if ( ! $passed ) {
return false;
}
$productId = $variationId ? $variationId : $productId;
$pricingRule = PricingRulesDispatcher::dispatchRule( $productId, null, null, false );
if ( $pricingRule ) {
$min = $pricingRule->getMinimum();
$max = $pricingRule->getMaximum();
$groupOf = $pricingRule->getGroupOf();
if ( $min ) {
$min = max( 1, $min - $this->getProductCartQuantity( $productId ) );
if ( $groupOf ) {
$min = max( $groupOf, $min );
}
if ( $qty < $min ) {
// translators: %s: minimum quantity
wc_add_notice( sprintf( 'Minimum order quantity for the product is %s', $min ), 'error' );
return false;
}
}
if ( $max ) {
$max = max( 1, $max - $this->getProductCartQuantity( $productId ) );
$max = max( $groupOf, $max );
if ( $qty > $max ) {
// translators: %s: maximum quantity
wc_add_notice( sprintf( 'Maximum order quantity for the product is %s', $max ), 'error' );
return false;
}
}
if ( $groupOf ) {
if ( 0 !== $qty % $groupOf ) {
// translators: %s: quantity step
wc_add_notice( sprintf( 'Order quantity must be multiple for %s', $groupOf ), 'error' );
return false;
}
}
}
return $passed;
}, 10, 4 );
add_filter( 'woocommerce_update_cart_validation', function ( $passed, $cart_item_key, $values, $quantity ) {
$productId = $values['variation_id'] ? $values['variation_id'] : $values['product_id'];
$pricingRule = PricingRulesDispatcher::dispatchRule( $productId );
if ( $pricingRule ) {
$min = $pricingRule->getMinimum();
$max = $pricingRule->getMaximum();
$groupOf = $pricingRule->getGroupOf();
if ( $min ) {
if ( $quantity < $min ) {
// translators: %s: minimum quantity
wc_add_notice( sprintf( __( 'Minimum order quantity for the product is %s', 'role-and-customer-based-pricing-for-woocommerce' ), $min ), 'error' );
return false;
}
}
if ( $max ) {
if ( $quantity > $max ) {
// translators: %s: maximum quantity
wc_add_notice( sprintf( __( 'Maximum order quantity for the product is %s', 'role-and-customer-based-pricing-for-woocommerce' ), $max ), 'error' );
return false;
}
}
if ( $groupOf ) {
if ( 0 !== $quantity % $groupOf ) {
// translators: %s: quantity step
wc_add_notice( sprintf( __( 'Order quantity must be multiple for %s', 'role-and-customer-based-pricing-for-woocommerce' ), $groupOf ), 'error' );
return false;
}
}
}
return $passed;
}, 10, 4 );
add_filter( 'woocommerce_available_variation', function ( $variation ) {
$pricingRule = PricingRulesDispatcher::dispatchRule( $variation['variation_id'], null, null, false );
if ( $pricingRule ) {
$min = $pricingRule->getMinimum();
$max = $pricingRule->getMaximum();
$groupOf = $pricingRule->getGroupOf();
if ( $min ) {
$min = max( 1, $min - $this->getProductCartQuantity( $variation['variation_id'] ) );
if ( $groupOf ) {
$min = max( $groupOf, $min );
}
$variation['min_qty'] = $min;
$variation['qty_value'] = $min;
}
if ( $max ) {
$max = max( 1, $max - $this->getProductCartQuantity( $variation['variation_id'] ) );
if ( $groupOf ) {
$max = max( $groupOf, $max );
}
$variation['max_qty'] = $max;
}
if ( $groupOf ) {
$variation['step'] = $groupOf;
}
}
return $variation;
}, 999 );
}
public function getProductCartQuantity( $product_id ) {
$qty = 0;
if ( is_array( wc()->cart->cart_contents ) ) {
foreach ( wc()->cart->cart_contents as $cart_content ) {
if ( $cart_content['product_id'] == $product_id ) {
$qty += $cart_content['quantity'];
}
}
}
return $qty;
}
}