Subversion Repositories SmartDukaan

package in.shop2020.catalog.dashboard.shared;

import in.shop2020.catalog.dashboard.client.CatalogService;

import in.shop2020.catalog.dashboard.client.CatalogServiceAsync;

import java.util.Date;

import java.util.Map;

import java.util.Map.Entry;

import com.google.gwt.core.client.GWT;

import com.google.gwt.user.client.DOM;

import com.google.gwt.user.client.Window;

import com.google.gwt.user.client.rpc.AsyncCallback;

import com.google.gwt.user.client.ui.RootPanel;

/**

 * Utility methods goes here

 *

 */

public class Utils {

    // item status values. These should be analogous to status enum in status.java

    // These values are used in the client side to check if transition from one status to another is 

    // valid. Also see validateStatusChange method

    // FIXME: These should be read from the ThriftConfig file and not hard-coded here.

    public static final int PHASED_OUT = 0,

                            DELETED = 1,

                            PAUSED = 2,

                            ACTIVE = 3,

                            IN_PROCESS = 4,

                            CONTENT_COMPLETE = 5;

    // role column in helper.catalogdashboarduser table. role specifies 

    // the username-pwd pair for staging or for production.

    // production password is needed while updating item on production server.

    public static final int ROLE_STAGING = 0, ROLE_PRODUCTION = 1;

    private static Map<Long, String> vendors, warehouses;

    private static final CatalogServiceAsync catalogService = GWT.create(CatalogService.class);

    static {

        catalogService.getAllVendors(new AsyncCallback<Map<Long,String>>() {

            @Override

            public void onSuccess(Map<Long, String> result) {

                vendors = result;

            }

            @Override

            public void onFailure(Throwable caught) {

                caught.printStackTrace();

            }

        });

        catalogService.getAllWarehouses(new AsyncCallback<Map<Long,String>>() {

            @Override

            public void onSuccess(Map<Long, String> result) {

                warehouses = result;

            }

            @Override

            public void onFailure(Throwable caught) {

                caught.printStackTrace();

            }

        });

    }

    public static Map<Long, String> getAllVendors() {

        return vendors;

    }

    public static Map<Long, String> getAllWarehouses() {

        return warehouses;

    }

    public static String getVendorDesc(long id) {

        if(vendors == null) {

            return null;

        }

        return vendors.get(id);

    }

    public static String getWarehouseDesc(long id) {

        if(warehouses == null) {

            return null;

        }

        return warehouses.get(id);

    }

    public static String getDisplayableDate(Long millis){

        Date date = new Date();

        date.setTime(millis);

        String dateString = date.toString();

        dateString = dateString.substring(0, dateString.lastIndexOf(" "));

        dateString = dateString.substring(0, dateString.lastIndexOf(" "));

        return dateString;      

    }

    /**

     * Since in vendor combo box, vendor name is populated, this method is used to get Id from name

     * @param vendor name

     * @return vendor Id corresponding to the name

     */

    public static long getVendorId(String vendorDesc) {

        if(vendors == null) {

            return 0;

        }

        for(Entry<Long, String> v : vendors.entrySet()) {

            if(v.getValue().equals(vendorDesc)) {

                return v.getKey();

            }

        }

        return 0;

    }

    /**

     * validates item object. ProductGroup, brand, modelNumber, modelName should not be empty or null.

     * Also does item and vendor prices validations (MRP >= SP, MRP >= MOP, TP <= MOP)

     * Vendor Item Key should not be empty or null

     * @param item

     * @return true if validation is successful, false otherwise

     */

    public static boolean validateItem(Item item) {

        if(item.getProductGroup() == null || item.getProductGroup().isEmpty()) {

            Window.alert("Product Group cannot be empty.");

            return false;

        }

        if(item.getBrand() == null || item.getBrand().isEmpty()) {

            Window.alert("Brand cannot be empty.");

            return false;

        }

        if(item.getModelNumber() == null || item.getModelNumber().isEmpty()) {

            Window.alert("Model Number cannot be empty.");

            return false;

        }

        if(item.getSellingPrice() != null && item.getMrp() != null && item.getSellingPrice() > item.getMrp()) {

            Window.alert("Selling price cannot be more than MRP");

            return false;

        }

        if(item.getVendorPricesMap() != null && !item.getVendorPricesMap().isEmpty()) {

            for(VendorPricings v : item.getVendorPricesMap().values()) {

                if(item.getMrp() != null && item.getMrp() < v.getMop()) {

                    Window.alert("MRP cannot be less than MOP. Vendor: " + Utils.getVendorDesc(v.getVendorId()));

                    return false;

                }

                if(v.getTransferPrice() > v.getMop()) {

                    Window.alert("Transfer Price cannot be more than MOP. Vendor: " + Utils.getVendorDesc(v.getVendorId()));

                    return false;

                }

            }

        }

        if(item.getVendorKeysMap() != null && !item.getVendorKeysMap().isEmpty()) {

            for(VendorItemMapping v : item.getVendorKeysMap().values()) {

                if(v.getItemKey() == null || v.getItemKey().isEmpty()) {

                    Window.alert("Item Key cannot be empty. Vendor: " + Utils.getVendorDesc(v.getVendorId()));

                    return false;

                }

            }

        }

        return true;

    }

    public static boolean validateStatusChange(int fromStatus, int toStatus) {

        switch(toStatus) {

        case PHASED_OUT: 

            switch(fromStatus) {

            case IN_PROCESS: return true;

            case CONTENT_COMPLETE: return true;

            case ACTIVE: return true;

            default: return false;

            }

        case IN_PROCESS:

            switch(fromStatus) {

            case PHASED_OUT: return true;

            default: return false;

            }

        case PAUSED:

            switch(fromStatus) {

            case ACTIVE: return true;

            default: return false;

            }

        case ACTIVE:

            switch(fromStatus) {

            case PAUSED: return true;

            default: return false;

            }

        }

        return true;

    }

}