content: /* Copyright (c) 2012 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.
   */
  
  package com.alexdisler.inapppurchases;
  
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  /**
   * Represents a block of information about in-app items.
   * An Inventory is returned by such methods as {@link IabHelper#queryInventory}.
   */
  public class Inventory {
      Map<String,SkuDetails> mSkuMap = new HashMap<String,SkuDetails>();
      Map<String,Purchase> mPurchaseMap = new HashMap<String,Purchase>();
  
      Inventory() { }
  
      /** Returns the listing details for an in-app product. */
      public SkuDetails getSkuDetails(String sku) {
          return mSkuMap.get(sku);
      }
  
      /** Returns purchase information for a given product, or null if there is no purchase. */
      public Purchase getPurchase(String sku) {
          return mPurchaseMap.get(sku);
      }
  
      /** Returns whether or not there exists a purchase of the given product. */
      public boolean hasPurchase(String sku) {
          return mPurchaseMap.containsKey(sku);
      }
  
      /** Return whether or not details about the given product are available. */
      public boolean hasDetails(String sku) {
          return mSkuMap.containsKey(sku);
      }
  
      /**
       * Erase a purchase (locally) from the inventory, given its product ID. This just
       * modifies the Inventory object locally and has no effect on the server! This is
       * useful when you have an existing Inventory object which you know to be up to date,
       * and you have just consumed an item successfully, which means that erasing its
       * purchase data from the Inventory you already have is quicker than querying for
       * a new Inventory.
       */
      public void erasePurchase(String sku) {
          if (mPurchaseMap.containsKey(sku)) mPurchaseMap.remove(sku);
      }
  
      /** Returns a list of all owned product IDs. */
      List<String> getAllOwnedSkus() {
          return new ArrayList<String>(mPurchaseMap.keySet());
      }
  
      /** Returns a list of all owned product IDs of a given type */
      List<String> getAllOwnedSkus(String itemType) {
          List<String> result = new ArrayList<String>();
          for (Purchase p : mPurchaseMap.values()) {
              if (p.getItemType().equals(itemType)) result.add(p.getSku());
          }
          return result;
      }
  
      /** Returns a list of all purchases. */
      List<Purchase> getAllPurchases() {
          return new ArrayList<Purchase>(mPurchaseMap.values());
      }
  
      void addSkuDetails(SkuDetails d) {
          mSkuMap.put(d.getSku(), d);
      }
  
      void addPurchase(Purchase p) {
          mPurchaseMap.put(p.getSku(), p);
      }
  }
  