ShippingEstimator

Complexity

Total Complexity

8

Size/Duplication

Total Lines	45
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	4

Importance

Changes

0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	5	2
B	getEstimates()	0	22	5
A	getShippingMethods()	0	5	1

<?php

/**
 * Helper class for calculating rates for available shipping options.
 * Provides a little caching, so estimates aren't calculated more than once.
 *
 * @package silvershop-shipping
 */
class ShippingEstimator
{
    protected $order;
    protected $address;
    protected $estimates = null;
    protected $calculated = false;

    public function __construct(Order $order, Address $address = null)
    {
        $this->order = $order;
        $this->address = $address ? $address : $order->getShippingAddress();
    }

    public function getEstimates()
    {
        if ($this->calculated) {
            return $this->estimates;
        }
        $output = new ArrayList();
        if ($options = $this->getShippingMethods()) {
            foreach ($options as $option) {
                $rate = $option->getCalculator($this->order)->calculate($this->address);
                if ($rate !== null) {
                    $option->CalculatedRate = $rate;
                    $output->push($option);
                }
            }
        }
        $output->sort("CalculatedRate", "ASC"); //sort by rate, lowest to highest
        // cache estimates
        $this->estimates = $output;
        $this->calculated = true;

        return $output;
    }

    /**
     * get options that apply to package and location
     */
    public function getShippingMethods()
    {
        //TODO: restrict options to region / package specs
        return ShippingMethod::get()->filter("Enabled", 1);
    }
}