com.wms.opensource.shopfast.shopify.Cart.java Source code

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Here is the source code for com.wms.opensource.shopfast.shopify.Cart.java

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/*
 * Copyright 2015 Waterloo Mobile Studio
 *
 * 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.wms.opensource.shopfast.shopify;

import java.util.ArrayList;
import java.util.List;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import com.wms.opensource.shopfast.R;
import com.wms.opensource.shopfast.util.FileUtil;
import com.wms.opensource.shopfast.util.StorageUtil;

import android.content.Context;

public class Cart {

    private static List<Item> items = new ArrayList<Item>();

    public static List<Item> getItems() {
        return items;
    }

    public static void addItem(int productID, String productName, String productImageSrc, int variantID,
            double price, int quantity, String optionName, String option) {
        Item item = new Item();
        item.setProductID(productID);
        item.setProductName(productName);
        item.setProductImageSrc(productImageSrc);
        item.setVariantID(variantID);
        item.setPrice(price);
        item.setQuantity(quantity);
        item.setOptionName(optionName);
        item.setOption(option);
        items.add(item);
    }

    public static double getSubtotal() {
        double total = 0;
        for (Item item : items) {
            total += item.getPrice() * item.getQuantity();
        }
        return total;
    }

    public static void updateQuantity(int productID, int quantity) {
        for (Item item : items) {
            if (item.getProductID() == productID) {
                item.setQuantity(quantity);
                break;
            }
        }
    }

    public static void removeItem(int productID) {
        for (int i = 0; i < items.size(); i++) {
            if (items.get(i).getProductID() == productID) {
                items.remove(i);
                break;
            }
        }
    }

    public static void removeItemByVariantID(int variantID) {
        for (int i = 0; i < items.size(); i++) {
            if (items.get(i).getVariantID() == variantID) {
                items.remove(i);
                break;
            }
        }
    }

    public static void clear() {
        items.clear();
    }

    public static int getItemNum() {
        return items.size();
    }

    public static void loadFromJSONFile(Context context) {
        String cartFilePath = StorageUtil.getTempDirectoryPath(context) + "/"
                + context.getString(R.string.cartFileName);
        boolean cartFileExists = FileUtil.fileExist(cartFilePath);
        if (cartFileExists) {
            String jsonString = FileUtil.readStringFromFile(StorageUtil.getTempDirectory(context),
                    context.getString(R.string.cartFileName), context.getString(R.string.charSetName));
            JSONArray jsonArray;
            try {
                jsonArray = new JSONArray(jsonString);
                for (int i = 0; i < jsonArray.length(); i++) {
                    JSONObject jsonObj = jsonArray.getJSONObject(i);
                    Item item = new Item();
                    item.setOption(jsonObj.getString("option"));
                    if (jsonObj.has("optionName")) {
                        item.setOptionName(jsonObj.getString("optionName"));
                    }
                    item.setPrice(jsonObj.getDouble("price"));
                    item.setProductID(jsonObj.getInt("productID"));
                    item.setProductImageSrc(jsonObj.getString("productImageSrc"));
                    item.setProductName(jsonObj.getString("productName"));
                    item.setQuantity(jsonObj.getInt("quantity"));
                    item.setVariantID(jsonObj.getInt("variantID"));
                    items.add(item);
                }

            } catch (JSONException e) {
            }
        }
    }

    public static void writeToJSONFile(Context context) {
        JSONArray jsonArray = new JSONArray();
        for (Item item : items) {
            JSONObject jsonObj = new JSONObject();
            try {
                jsonObj.put("productID", item.getProductID());
                jsonObj.put("productName", item.getProductName());
                jsonObj.put("productImageSrc", item.getProductImageSrc());
                jsonObj.put("variantID", item.getVariantID());
                jsonObj.put("price", item.getPrice());
                jsonObj.put("quantity", item.getQuantity());
                jsonObj.put("option", item.getOption());
                if (item.getOptionName() != null) {
                    jsonObj.put("optionName", item.getOptionName());
                }
                jsonArray.put(jsonObj);
            } catch (JSONException e) {

            }
        }
        FileUtil.writeStringToFile(jsonArray.toString(), StorageUtil.getTempDirectory(context),
                context.getString(R.string.cartFileName), context.getString(R.string.charSetName));
    }

    public static class Item {
        private int productID = 0;
        private String productName = "";
        private String productImageSrc = "";
        private int variantID = 0;
        private double price = 0.0;
        private int quantity = 0;
        private String optionName = "";
        private String option = "";

        public Item() {
        }

        public int getProductID() {
            return productID;
        }

        public String getProductName() {
            return productName;
        }

        public void setProductName(String productName) {
            this.productName = productName;
        }

        public String getProductImageSrc() {
            return productImageSrc;
        }

        public void setProductImageSrc(String productImageSrc) {
            this.productImageSrc = productImageSrc;
        }

        public void setProductID(int productID) {
            this.productID = productID;
        }

        public int getVariantID() {
            return variantID;
        }

        public void setVariantID(int variantID) {
            this.variantID = variantID;
        }

        public double getPrice() {
            return price;
        }

        public void setPrice(double price) {
            this.price = price;
        }

        public int getQuantity() {
            return quantity;
        }

        public void setQuantity(int quantity) {
            this.quantity = quantity;
        }

        public String getOptionName() {
            return optionName;
        }

        public void setOptionName(String optionName) {
            this.optionName = optionName;
        }

        public String getOption() {
            return option;
        }

        public void setOption(String option) {
            this.option = option;
        }
    }
}