Subversion Repositories SmartDukaan

package in.shop2020.catalog.dashboard.client;

import java.util.Map.Entry;

import in.shop2020.catalog.dashboard.shared.Item;

import in.shop2020.catalog.dashboard.shared.Utils;

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

import com.google.gwt.event.dom.client.ClickEvent;

import com.google.gwt.event.dom.client.ClickHandler;

import com.google.gwt.uibinder.client.UiBinder;

import com.google.gwt.uibinder.client.UiField;

import com.google.gwt.uibinder.client.UiHandler;

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

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

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

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

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

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

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

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

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

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

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

/**

 * Panel containing buttons for different actions on item.

 * e.g. update item, add new item, change item status, mark/unmark risky, push prices to production etc.

 * @author ankur

 *

 */

public class ItemActions extends ResizeComposite{

    interface ItemActionsUiBinder extends UiBinder<Widget, ItemActions> {}

    private static ItemActionsUiBinder uiBinder = GWT.create(ItemActionsUiBinder.class);

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

    private ItemDetails itemDetails;

    @UiField Button addItem, updateItem, pushItemToProd, phaseoutItem, activateItem, markAliveItem, pauseItem;

    @UiField Button markRisky, unmarkRisky;

    @UiField Button generateMasterSheet;

    public ItemActions(){

        initWidget(uiBinder.createAndBindUi(this));

        //pushItemToProd.setEnabled(false);

    }

    @UiHandler("updateItem")

    void updateItem(ClickEvent event) {

        itemDetails.updateItem();

    }

    /**

     * creates a new form to fill up item details and displays the form.

     * @param event

     */

    @UiHandler("addItem")

    void addItem(ClickEvent event) {

        ItemForm itemForm = new ItemForm();

        itemForm.center();

        itemForm.show();

    }

    @UiHandler("phaseoutItem")

    void phaseoutItem(ClickEvent event) {

        final long itemId = validateStatusChange(Utils.PHASED_OUT);

        if(itemId <= 0) {

            return;

        }

        catalogService.phaseoutItem(itemId, new AsyncCallback<Void>() {

            @Override

            public void onSuccess(Void result) {

                Window.alert("Item marked as PHASED OUT");

            }

            @Override

            public void onFailure(Throwable caught) {

                Window.alert("Error while marking item " + itemId + " PHASED OUT");

            }

        });

    }

    @UiHandler("activateItem")

    void activateItem(ClickEvent event) {

        final long itemId = validateStatusChange(Utils.ACTIVE);

        if(itemId <= 0) {

            return;

        }

        catalogService.activateItem(itemId, new AsyncCallback<Void>() {

            @Override

            public void onSuccess(Void result) {

                Window.alert("Item marked as ACTIVE");

            }

            @Override

            public void onFailure(Throwable caught) {

                Window.alert("Error while marking item " + itemId + " ACTIVE");

            }

        });

    }

    @UiHandler("pauseItem")

    void pauseItem(ClickEvent event) {

        final long itemId = validateStatusChange(Utils.PAUSED);

        if(itemId <= 0) {

            return;

        }

        catalogService.pauseItem(itemId, new AsyncCallback<Void>() {

            @Override

            public void onSuccess(Void result) {

                Window.alert("Item marked as PAUSED");

            }

            @Override

            public void onFailure(Throwable caught) {

                Window.alert("Error while marking item " + itemId + " PAUSED");

            }

        });

    }

    @UiHandler("markAliveItem")

    void markAsAlive(ClickEvent event) {

        final long itemId = validateStatusChange(Utils.IN_PROCESS);

        if(itemId <= 0) {

            return;

        }

        catalogService.markInProcess(itemId, new AsyncCallback<Void>() {

            @Override

            public void onSuccess(Void result) {

                Window.alert("Item marked as IN PROCESS");

            }

            @Override

            public void onFailure(Throwable caught) {

                Window.alert("Error while marking item " + itemId + " IN PROCESS");

            }

        });

    }

    /**

     * Creates and pops up authentication dialog for push to production username and password

     * @param event

     */

    @UiHandler("pushItemToProd")

    void pushItemToProduction(ClickEvent event) {

        if(itemDetails.getItem() == null) {

            Window.alert("Please select an item to update");

            return;

        }

        AuthenticateDialog authDialog = new AuthenticateDialog(itemDetails.getItem());

        authDialog.show();

    }

    @UiHandler("markRisky")

    void markRisky(ClickEvent event) {

        changeRiskyFlag(true);

    }

    @UiHandler("unmarkRisky")

    void unmarkRisky(ClickEvent event) {

        changeRiskyFlag(false);

    }

    @UiHandler("generateMasterSheet")

    void generateMasterSheet(ClickEvent event)  {

        createDialog();

    }

    /**

     * Creates and pops up  dialog box containing following options. 

     * Categories: 1) Handsets 2) Accessories

     * Vendors: 1) Hotspot 2) Tulip 3) Sarvottam

     * Also creates submit and cancel buttons and add click event listeners to them.

     * On submit button click, request is sent to <code>in.shop2020.catalog.dashboard.server.FileDownloadServlet<code>

     */

    private void createDialog() {

        VerticalPanel vp = new VerticalPanel();

        final DialogBox db = new DialogBox();

        db.setText("Master Sheet Download");

        final Label categoryLabel = new Label("Category");

        vp.add(categoryLabel);

        final RadioButton handsetsRB = new RadioButton("vendorCategory", "Handsets");

        final RadioButton accRB = new RadioButton("vendorCategory", "Accessories");

        handsetsRB.setValue(true);

        HorizontalPanel hpRB = new HorizontalPanel();

        hpRB.add(handsetsRB);

        hpRB.add(accRB);

        vp.add(hpRB);

        final Label vendorLabel = new Label("Vendor");

        vp.add(vendorLabel);

        final ListBox vendor = new ListBox();

        for(Entry<Long, String> e : Utils.getAllVendors().entrySet()){

            vendor.addItem(e.getValue());

        }

        vp.add(vendor);

        Button submitButton = new Button("OK");

        Button cancelButton = new Button("Cancel");

        HorizontalPanel hpButtons = new HorizontalPanel();

        hpButtons.setSpacing(5);

        hpButtons.add(submitButton);

        hpButtons.add(cancelButton);

        vp.add(hpButtons);

        db.add(vp);

        submitButton.addClickHandler(new ClickHandler() {

            @Override

            public void onClick(ClickEvent event) {

                String vendorCategory;

                if(handsetsRB.getValue()) {

                    vendorCategory = "Handsets";

                } else {

                    vendorCategory = "Accessories";

                }

                long vendorId = Utils.getVendorId(vendor.getItemText(vendor.getSelectedIndex()));

                // Servlet mapping mastersheet/download is mapped to in.shop2020.catalog.dashboard.server.FileDownloadServlet

                String link = GWT.getHostPageBaseURL() + "mastersheet/download?vendorCategory=" + vendorCategory + "&vendorId=" + vendorId;

                Window.open(link, "_self", "Master Sheet Download");

                db.hide();

            }

        });

        cancelButton.addClickHandler(new ClickHandler() {

            @Override

            public void onClick(ClickEvent event) {

                db.hide();

            }

        });

        db.center();

        db.setAnimationEnabled(true);

        db.show();

    }

    /**

     * validates and then calls service method changeItemRiskyFlag to change risky flag.

     * @param risky

     */

    private void changeRiskyFlag(boolean risky) {

        Item item = itemDetails.getItem();

        if(item == null) {

            Window.alert("Please select an item to mark/unmark as risky");

            return;

        }

        if(risky && item.isRisky()) {

            Window.alert("Item already marked as risky");

            return;

        }

        if(!risky && !item.isRisky()) {

            Window.alert("Item not marked as risky");

            return;

        }

        catalogService.changeItemRiskyFlag(item.getId(), risky, new AsyncCallback<Boolean>() {

            @Override

            public void onSuccess(Boolean result) {

                if(result) {

                    Window.alert("Done!");

                } else {

                    Window.alert("Error while marking/unmarking risky flag on staging/production server.");

                }

            }

            @Override

            public void onFailure(Throwable caught) {

                Window.alert("Error");

            }

        });

    }

    public void setItemDetails(ItemDetails itemDetails) {

        this.itemDetails = itemDetails;

    }

    /**

     * Validate item status change.

     * @param toStatus

     * @return item Id if validation is successful else -1

     */

    private long validateStatusChange(int toStatus) {

        final Item item = itemDetails.getItem();

        if(item == null) {

            Window.alert(getAlertString(toStatus)[0]);

            return -1;

        }

        if(!Utils.validateStatusChange(item.getItemStatusValue(), toStatus)) {

            Window.alert(getAlertString(toStatus)[1]);

            return -1;

        }

        return item.getId();

    }

    /**

     * @param toStatus

     * @return messages to be show to the user if item status change validation fails.

     *       <br>-first message will be shown if no item is selected in the list

     *       <br>-second message is shown if validation for FromStatus to ToStatus fails.

     */

    private String[] getAlertString(int toStatus) {

        String[] alertStr = {"", ""};

        switch(toStatus) {

        case Utils.PAUSED: {

            alertStr[0] = "Please select an ACTIVE item to mark PAUSED";

            alertStr[1] = "Cannot mark this item as PAUSED";

            break;

        }

        case Utils.IN_PROCESS: {

            alertStr[0] = "Please select a PHASED OUT item to mark IN PROCESS";

            alertStr[1] = "Cannot mark this item as IN PROCESS";

            break;

        }

        case Utils.ACTIVE: {

            alertStr[0] = "Please select a PAUSED item to mark ACTIVE";

            alertStr[1] = "Cannot mark this item as ACTIVE";

            break;

        }

        case Utils.PHASED_OUT: {

            alertStr[0] = "Please select an item to mark PHASED OUT";

            alertStr[1] = "Cannot mark this item as PHASED OUT";

            break;

        }

        }

        return alertStr;

    }

}