<?php
/*
 * Copyright (C) 2007 Google Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */
/**
 * Classes used to represent shipping types
 * @version $Id: googleshipping.php 7541 2011-07-07 08:51:35Z gBrunier $
 */
 
  /**
   * Class that represents flat rate shipping
   * 
   * info:
   * {@link http://code.google.com/apis/checkout/developer/index.html#tag_flat-rate-shipping}
   * {@link http://code.google.com/apis/checkout/developer/index.html#shipping_xsd}
   *  
   */
  class GoogleFlatRateShipping {

    var $price;
    var $name;
    var $type = "flat-rate-shipping";
    var $shipping_restrictions;

    /**
     * @param string $name a name for the shipping
     * @param double $price the price for this shipping
     */
    function GoogleFlatRateShipping($name, $price) {
      $this->name = $name;
      $this->price = $price;
    }

    /**
     * Adds a restriction to this shipping.
     * 
     * @param GoogleShippingFilters $restrictions the shipping restrictions
     */
    function AddShippingRestrictions($restrictions) {
      $this->shipping_restrictions = $restrictions;
    }
  }
  
  /**
   * Represents a merchant calculated shipping
   * 
   * info:
   * {@link http://code.google.com/apis/checkout/developer/index.html#shipping_xsd}
   * {@link http://code.google.com/apis/checkout/developer/index.html#merchant_calculations_specifying}
   */
  class GoogleMerchantCalculatedShipping {

    var $price;
    var $name;
    var $type = "merchant-calculated-shipping";
    var $shipping_restrictions;
    var $address_filters;

    /**
     * @param string $name a name for the shipping
     * @param double $price the default price for this shipping, used if the 
     *                      calculation can't be made for some reason.
     */
    function GoogleMerchantCalculatedShipping($name, $price) {
      $this->price = $price;
      $this->name = $name;
    }

    /**
     * Adds a restriction to this shipping.
     * 
     * @param GoogleShippingFilters $restrictions the shipping restrictions
     */
    function AddShippingRestrictions($restrictions) {
      $this->shipping_restrictions = $restrictions;
    }

    /**
     * Adds an address filter to this shipping.
     * 
     * @param GoogleShippingFilters $filters the address filters
     */
    function AddAddressFilters($filters) {
      $this->address_filters = $filters;
    }
  }
  
  /**
   * Represents carrier calculated shipping
   */
  class GoogleCarrierCalculatedShipping {

    var $name;
    var $type = "carrier-calculated-shipping";
    
    var $CarrierCalculatedShippingOptions = array();
//    var $ShippingPackages = array();
    var $ShippingPackage;

    /**
     * @param string $name the name of this shipping
     */
    function GoogleCarrierCalculatedShipping($name) {
      $this->name = $name;
    }

    /**
     * @param GoogleCarrierCalculatedShippingOption $option the option to be 
     * added to the carrier calculated shipping
     */
    function addCarrierCalculatedShippingOptions($option){
      $this->CarrierCalculatedShippingOptions[] = $option; 
    }

    /**
     * @param GoogleShippingPackage $package
     */
    function addShippingPackage($package){
//      $this->ShippingPackages[] = $package; 
      $this->ShippingPackage = $package; 
    }
  }

  /**
   * Represents a shipping method for which Google Checkout will obtain 
   * shipping costs for the order.
   */
  class GoogleCarrierCalculatedShippingOption {

    var $price;
    var $shipping_company;
    var $shipping_type;
    var $carrier_pickup;
    var $additional_fixed_charge;
    var $additional_variable_charge_percent;
//    var $shipping_restrictions;
//    var $address_filters;

    /**
     * @param double $price the default shipping cost to be used if Google is 
     *                      unable to obtain the shipping_company's shipping rate for
     *                      the option
     * @param string $shipping_company the name of the shipping_company
     * @param string $shipping_type the shipping option, valid values are here:
     *   http://code.google.com/apis/checkout/developer/Google_Checkout_XML_API_Carrier_Calculated_Shipping.html#tag_shipping-type
     * @param double $additional_fixed_charge a handling charge that will be
     * added to the total cost of the order if this shipping option is selected.
     * defaults to 0
     * @param double $additional_variable_charge_percent A percentage by which
     * the shipping rate will be adjusted. The value may be positive or
     * negative. defaults to 0.
     * @param string $carrier_pickup Specifies how the package will be 
     * transfered from the merchand to the shipper. Valid values are 
     * "REGULAR_PICKUP", "SPECIAL_PICKUP", "DROP_OFF". Defaults to "DROP_OFF".
     *                
     */
    function GoogleCarrierCalculatedShippingOption($price, $shipping_company,
         $shipping_type, $additional_fixed_charge=0,
         $additional_variable_charge_percent=0, $carrier_pickup='DROP_OFF') {
      $this->price = (double)$price;
      $this->shipping_company = $shipping_company;
      $this->shipping_type = trim($shipping_type);
      switch(strtoupper($carrier_pickup)){
        case 'DROP_OFF':
        case 'REGULAR_PICKUP':
        case 'SPECIAL_PICKUP':
          $this->carrier_pickup = $carrier_pickup;
          break;
        default:
          $this->carrier_pickup = 'DROP_OFF';
      }
      if ($additional_fixed_charge){
        $this->additional_fixed_charge = (double)$additional_fixed_charge;
      }
      if ($additional_variable_charge_percent){
        $this->additional_variable_charge_percent = (double)$additional_variable_charge_percent;
      }
    }

//    function AddShippingRestrictions($restrictions) {
//      $this->shipping_restrictions = $restrictions;
//    }
//
//    function AddAddressFilters($filters) {
//      $this->address_filters = $filters;
//    }
  }
  
  /**
   * Represents an individual package that will be shipped to the buyer.
   */
  class GoogleShippingPackage {

    var $width;
    var $length;
    var $height;
    var $unit;
    var $ship_from;
    var $delivery_address_category;

    /**
     * @param GoogleShipFrom $ship_from where the package ships from
     * @param double $width the width of the package
     * @param double $length the length of the package
     * @param double $height the height of the package
     * @param string $unit the unit used to measure the width/length/height
     *                     of the package, valid values "IN", "CM"
     * @param string $delivery_address_category indicates whether the shipping
     * method should be applied to a residential or commercial address, valid 
     * values are "RESIDENTIAL", "COMMERCIAL"
     */
    function GoogleShippingPackage($ship_from, $width, $length, $height, $unit,
                    $delivery_address_category='RESIDENTIAL') {
      $this->width = (double)$width;
      $this->length = (double)$length;
      $this->height = (double)$height;
      switch(strtoupper($unit)){
        case 'CM':
          $this->unit = strtoupper($unit);
          break;
        case 'IN':
        default:
          $this->unit = 'IN';
      }
      
      $this->ship_from = $ship_from;
      switch(strtoupper($delivery_address_category)){
        case 'COMMERCIAL':
          $this->delivery_address_category = strtoupper($delivery_address_category);
          break;
        case 'RESIDENTIAL':
        default:
          $this->delivery_address_category = 'RESIDENTIAL';
      }
    }
  }
  
  /**
   * Represents the location from where packages will be shipped from.
   * Used with {@link GoogleShippingPackage}.
   */
  class GoogleShipFrom {
    var $id;
    var $city;
    var $country_code;
    var $postal_code;
    var $region;
    
    /**
     * @param string $id an id for this address
     * @param string $city the city
     * @param string $country_code a 2-letter iso country code
     * @param string $postal_code the zip
     * @param string $region the region
     */
    function GoogleShipFrom($id, $city, $country_code,
                                  $postal_code, $region) {
      $this->id = $id;
      $this->city = $city;
      $this->country_code = $country_code;
      $this->postal_code = $postal_code;
      $this->region = $region;
    }
  }  
  
  /**
   * 
   * Shipping restrictions contain information about particular areas where
   * items can (or cannot) be shipped.
   * 
   * More info:
   * {@link http://code.google.com/apis/checkout/developer/index.html#tag_shipping-restrictions}
   * 
   * Address filters identify areas where a particular merchant-calculated 
   * shipping method is available or unavailable. Address filters are applied 
   * before Google Checkout sends a <merchant-calculation-callback> to the 
   * merchant. Google Checkout will not ask you to calculate the cost of a 
   * particular shipping method for an address if the address filters in the 
   * Checkout API request indicate that the method is not available for the 
   * address.
   * 
   * More info:
   * {@link http://code.google.com/apis/checkout/developer/index.html#tag_address-filters}
   */
  class GoogleShippingFilters {

    var $allow_us_po_box = true;

    var $allowed_restrictions = false;
    var $excluded_restrictions = false;

    var $allowed_world_area = false;
    var $allowed_country_codes_arr;
    var $allowed_postal_patterns_arr;
    var $allowed_country_area;
    var $allowed_state_areas_arr;
    var $allowed_zip_patterns_arr;

    var $excluded_country_codes_arr;
    var $excluded_postal_patterns_arr;
    var $excluded_country_area;
    var $excluded_state_areas_arr;
    var $excluded_zip_patterns_arr;

    function GoogleShippingFilters() {
      $this->allowed_country_codes_arr = array();
      $this->allowed_postal_patterns_arr = array();
      $this->allowed_state_areas_arr = array();
      $this->allowed_zip_patterns_arr = array();

      $this->excluded_country_codes_arr = array();
      $this->excluded_postal_patterns_arr = array();
      $this->excluded_state_areas_arr = array();
      $this->excluded_zip_patterns_arr = array();
    }
    
    /**
     * GC tag: {@link http://code.google.com/apis/checkout/developer/index.html#tag_allow-us-po-box <allow-us-po-box>}
     * 
     * @param bool $allow_us_po_box whether to allow delivery to PO boxes in US,
     * defaults to true
     */
    function SetAllowUsPoBox($allow_us_po_box = true) {
      $this->allow_us_po_box = $allow_us_po_box;
    }

    /**
     * Set the world as allowed delivery area.
     * 
     * GC tag: {@link http://code.google.com/apis/checkout/developer/index.html#tag_world-area <world-area>}
     * 
     * @param bool $world_area Set worldwide allowed shipping, defaults to true
     */
    function SetAllowedWorldArea($world_area = true) {
      $this->allowed_restrictions = true;
      $this->allowed_world_area = $world_area;
    }
    
    // Allows
    /**
     * Add a postal area to be allowed for delivery.
     * 
     * GC tag: {@link http://code.google.com/apis/checkout/developer/index.html#tag_postal-area <postal-area>}
     * 
     * @param string $country_code 2-letter iso country code
     * @param string $postal_pattern Pattern that matches the postal areas to
     * be allowed, as defined in {@link http://code.google.com/apis/checkout/developer/index.html#tag_postal-code-pattern}
     */
    function AddAllowedPostalArea($country_code, $postal_pattern = "") {
      $this->allowed_restrictions = true;
      $this->allowed_country_codes_arr[] = $country_code;
      $this->allowed_postal_patterns_arr[]= $postal_pattern;
    }

    /**
     * Add a us country area to be allowed for delivery.
     * 
     * GC tag: {@link http://code.google.com/apis/checkout/developer/index.html#tag_us-country-area <us-country-area>}
     * 
     * @param string $country_area the area to allow, one of "CONTINENTAL", 
     * "FULL_50_STATES" or "ALL"
     * 
     */
    function SetAllowedCountryArea($country_area) {
      switch ($country_area) {
        case "CONTINENTAL_48":
        case "FULL_50_STATES":
        case "ALL":
          $this->allowed_country_area = $country_area;
          $this->allowed_restrictions = true;
        break;
        default:
          $this->allowed_country_area = "";
        break;
      }
    }

    /**
     * Allow shipping to areas specified by state.
     * 
     * GC tag: {@link http://code.google.com/apis/checkout/developer/index.html#tag_us-state-area <us-state-area>}
     * 
     * @param array $areas Areas to be allowed
     */
    function SetAllowedStateAreas($areas) {
      $this->allowed_restrictions = true;
      $this->allowed_state_areas_arr = $areas;
    }

    /**
     * Allow shipping to areas specified by state.
     * 
     * GC tag: {@link http://code.google.com/apis/checkout/developer/index.html#tag_us-state-area <us-state-area>}
     * 
     * @param string $area Area to be allowed
     */
    function AddAllowedStateArea($area) {
      $this->allowed_restrictions = true;
      $this->allowed_state_areas_arr[] = $area;
    }

    /**
     * Allow shipping to areas specified by zip patterns.
     * 
     * GC tag: {@link http://code.google.com/apis/checkout/developer/index.html#tag_us-zip-area <us-zip-area>}
     * 
     * @param array $zips
     */
    function SetAllowedZipPatterns($zips) {
      $this->allowed_restrictions = true;
      $this->allowed_zip_patterns_arr = $zips;
    }

    /**
     * Allow shipping to area specified by zip pattern.
     * 
     * GC tag: {@link http://code.google.com/apis/checkout/developer/index.html#tag_us-zip-area <us-zip-area>}
     * 
     * @param string 
     */
    function AddAllowedZipPattern($zip) {
      $this->allowed_restrictions = true;
      $this->allowed_zip_patterns_arr[] = $zip;
    }
    
    /**
     * Exclude postal areas from shipping.
     * 
     * @see AddAllowedPostalArea
     */
    function AddExcludedPostalArea($country_code, $postal_pattern = "") {
      $this->excluded_restrictions = true;
      $this->excluded_country_codes_arr[] = $country_code;
      $this->excluded_postal_patterns_arr[]= $postal_pattern;
    }

    /**
     * Exclude state areas from shipping.
     * 
     * @see SetAllowedStateAreas
     */
    function SetExcludedStateAreas($areas) {
      $this->excluded_restrictions = true;
      $this->excluded_state_areas_arr = $areas;
    }

    /**
     * Exclude state area from shipping.
     * 
     * @see AddAllowedStateArea
     */
    function AddExcludedStateArea($area) {
      $this->excluded_restrictions = true;
      $this->excluded_state_areas_arr[] = $area;
    }

    /**
     * Exclude shipping to area specified by zip pattern.
     * 
     * @see SetAllowedZipPatterns
     */
    function SetExcludedZipPatternsStateAreas($zips) {
      $this->excluded_restrictions = true;
      $this->excluded_zip_patterns_arr = $zips;
    }

    /**
     * Exclude shipping to area specified by zip pattern.
     * 
     * @see AddExcludedZipPattern
     */
    function SetAllowedZipPatternsStateArea($zip) {
      $this->excluded_restrictions = true;
      $this->excluded_zip_patterns_arr[] = $zip;
    }

    /**
     * Exclude shipping to country area
     * 
     * @see SetAllowedCountryArea
     */
    function SetExcludedCountryArea($country_area) {
      switch ($country_area) {
        case "CONTINENTAL_48":
        case "FULL_50_STATES":
        case "ALL":
          $this->excluded_country_area = $country_area;
          $this->excluded_restrictions = true;
     		break;
      
      	default:
          $this->excluded_country_area = "";
     		break;
      }
    }
  }

  /**
   * Used as a shipping option in which neither a carrier nor a ship-to 
   * address is specified
   * 
   * GC tag: {@link http://code.google.com/apis/checkout/developer/index.html#tag_pickup} <pickup>
   */
  class GooglePickUp {

    var $price;
    var $name;
    var $type = "pickup";

    /**
     * @param string $name the name of this shipping option
     * @param double $price the handling cost (if there is one)
     */
    function GooglePickUp($name, $price) {
      $this->price = $price;
      $this->name = $name;
    }
  }