WPInv_Invoice::add_item()

Complexity

Conditions	37
Paths	> 20000

Size

Total Lines	167
Code Lines	105

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

<?php
    public function add_item( $item_id = 0, $args = array() ) {
        global $wpi_current_id, $wpi_item_id;
        
        $item = new WPInv_Item( $item_id );

        // Bail if this post isn't a item
        if( !$item || $item->post_type !== 'wpi_item' ) {

The property post_type does not exist on WPInv_Item. Since you implemented __get, consider adding a @property annotation.

$item is of type WPInv_Item, thus it always evaluated to true.

            return false;
        }
        
        $has_quantities = wpinv_item_quantities_enabled();

        // Set some defaults
        $defaults = array(
            'quantity'      => 1,
            'id'            => false,
            'name'          => $item->get_name(),
            'item_price'    => false,
            'custom_price'  => '',
            'discount'      => 0,
            'tax'           => 0.00,
            'meta'          => array(),
            'fees'          => array()
        );

        $args = wp_parse_args( apply_filters( 'wpinv_add_item_args', $args, $item->ID ), $defaults );
        $args['quantity']   = $has_quantities && $args['quantity'] > 0 ? absint( $args['quantity'] ) : 1;

        $wpi_current_id         = $this->ID;
        $wpi_item_id            = $item->ID;
        $discounts              = $this->get_discounts();

The assignment to $discounts is dead and can be removed.

        
        $_POST['wpinv_country'] = $this->country;
        $_POST['wpinv_state']   = $this->state;
        
        $found_cart_key         = false;
        
        if ($has_quantities) {
            $this->cart_details = !empty( $this->cart_details ) ? array_values( $this->cart_details ) : $this->cart_details;
            
            foreach ( $this->items as $key => $cart_item ) {
                if ( (int)$item_id !== (int)$cart_item['id'] ) {
                    continue;
                }

                $this->items[ $key ]['quantity'] += $args['quantity'];
                break;
            }
            
            foreach ( $this->cart_details as $cart_key => $cart_item ) {
                if ( $item_id != $cart_item['id'] ) {
                    continue;
                }

                $found_cart_key = $cart_key;
                break;
            }
        }
        
        if ($has_quantities && $found_cart_key !== false) {
            $cart_item          = $this->cart_details[$found_cart_key];
            $item_price         = $cart_item['item_price'];
            $quantity           = !empty( $cart_item['quantity'] ) ? $cart_item['quantity'] : 1;
            $tax_rate           = !empty( $cart_item['vat_rate'] ) ? $cart_item['vat_rate'] : 0;
            
            $new_quantity       = $quantity + $args['quantity'];
            $subtotal           = $item_price * $new_quantity;
            
            $args['quantity']   = $new_quantity;
            $discount           = !empty( $args['discount'] ) ? $args['discount'] : 0;
            $tax                = $subtotal > 0 && $tax_rate > 0 ? ( ( $subtotal - $discount ) * 0.01 * (float)$tax_rate ) : 0;
            
            $discount_increased = $discount > 0 && $subtotal > 0 && $discount > (float)$cart_item['discount'] ? $discount - (float)$cart_item['discount'] : 0;
            $tax_increased      = $tax > 0 && $subtotal > 0 && $tax > (float)$cart_item['tax'] ? $tax - (float)$cart_item['tax'] : 0;
            // The total increase equals the number removed * the item_price
            $total_increased    = wpinv_round_amount( $item_price );
            
            if ( wpinv_prices_include_tax() ) {
                $subtotal -= wpinv_round_amount( $tax );
            }

            $total              = $subtotal - $discount + $tax;

            // Do not allow totals to go negative
            if( $total < 0 ) {
                $total = 0;
            }
            
            $cart_item['quantity']  = $new_quantity;
            $cart_item['subtotal']  = $subtotal;
            $cart_item['discount']  = $discount;
            $cart_item['tax']       = $tax;
            $cart_item['price']     = $total;
            
            $subtotal               = $total_increased - $discount_increased;
            $tax                    = $tax_increased;
            
            $this->cart_details[$found_cart_key] = $cart_item;
        } else {
            // Set custom price.
            if ( $args['custom_price'] !== '' ) {
                $item_price = $args['custom_price'];
            } else {
                // Allow overriding the price
                if ( false !== $args['item_price'] ) {
                    $item_price = $args['item_price'];
                } else {
                    $item_price = wpinv_get_item_price( $item->ID );
                }
            }

            // Sanitizing the price here so we don't have a dozen calls later
            $item_price = wpinv_sanitize_amount( $item_price );
            $subtotal   = wpinv_round_amount( $item_price * $args['quantity'] );
        
            $discount   = !empty( $args['discount'] ) ? $args['discount'] : 0;
            $tax_class  = !empty( $args['vat_class'] ) ? $args['vat_class'] : '';
            $tax_rate   = !empty( $args['vat_rate'] ) ? $args['vat_rate'] : 0;
            $tax        = $subtotal > 0 && $tax_rate > 0 ? ( ( $subtotal - $discount ) * 0.01 * (float)$tax_rate ) : 0;

            // Setup the items meta item
            $new_item = array(
                'id'       => $item->ID,
                'quantity' => $args['quantity'],
            );

            $this->items[]  = $new_item;

            if ( wpinv_prices_include_tax() ) {
                $subtotal -= wpinv_round_amount( $tax );
            }

            $total      = $subtotal - $discount + $tax;

            // Do not allow totals to go negative
            if( $total < 0 ) {
                $total = 0;
            }
        
            $this->cart_details[] = array(
                'name'          => !empty($args['name']) ? $args['name'] : $item->get_name(),
                'id'            => $item->ID,
                'item_price'    => wpinv_round_amount( $item_price ),
                'custom_price'  => ( $args['custom_price'] !== '' ? wpinv_round_amount( $args['custom_price'] ) : '' ),
                'quantity'      => $args['quantity'],
                'discount'      => $discount,
                'subtotal'      => wpinv_round_amount( $subtotal ),
                'tax'           => wpinv_round_amount( $tax ),
                'price'         => wpinv_round_amount( $total ),
                'vat_rate'      => $tax_rate,
                'vat_class'     => $tax_class,
                'meta'          => $args['meta'],
                'fees'          => $args['fees'],
            );
                        
            $subtotal = $subtotal - $discount;
        }
        
        $added_item = end( $this->cart_details );
        $added_item['action']  = 'add';
        
        $this->pending['items'][] = $added_item;
        
        $this->increase_subtotal( $subtotal );
        $this->increase_tax( $tax );

        return true;
    }