package com.smartgwt.sample.showcase.client.dataintegration.java.serversummaries;

import java.util.HashMap;
import java.util.Map;

import com.smartgwt.client.data.AdvancedCriteria;
import com.smartgwt.client.data.Criterion;
import com.smartgwt.client.data.DSRequest;
import com.smartgwt.client.data.DataSource;
import com.smartgwt.client.types.ListGridFieldType;
import com.smartgwt.client.types.OperatorId;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.IButton;
import com.smartgwt.client.widgets.events.ClickEvent;
import com.smartgwt.client.widgets.events.ClickHandler;
import com.smartgwt.client.widgets.form.DynamicForm;
import com.smartgwt.client.widgets.form.FilterBuilder;
import com.smartgwt.client.widgets.form.fields.SelectItem;
import com.smartgwt.client.widgets.grid.HeaderSpan;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.grid.ListGridField;
import com.smartgwt.client.widgets.grid.ListGridRecord;
import com.smartgwt.client.widgets.layout.VStack;

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

public class AggregationCustomSQLSample implements EntryPoint {

@Override
    public void onModuleLoad() {
    	
    	final DynamicForm operationForm = new DynamicForm();
    	operationForm.setWidth(550);
        
        SelectItem operationId = new SelectItem();
        operationId.setTitle("Filter");
        operationId.setName("operationId");
        operationId.setWidth("100%");
        operationId.setDefaultToFirstOption(true);
        
        Map<String,String> valueMap = new HashMap<String,String>();
        valueMap.put("orderAmount", "Exclude entire orders with total value greater than");
        valueMap.put("itemAmount", "Exclude individual items within an order with value greater than");
        operationId.setValueMap(valueMap);
        
        operationForm.setFields(operationId);
        
    	DataSource ds = DataSource.get("aggregationCustomSQL_orderItem");
    	final FilterBuilder advancedFilter = new FilterBuilder();
    	advancedFilter.setDataSource(ds);    	
    	AdvancedCriteria adCriteria = new AdvancedCriteria(OperatorId.AND, new Criterion[]{
    	      new Criterion("amount", OperatorId.GREATER_THAN, 30),
    	      new Criterion("quantity", OperatorId.GREATER_THAN, 3)
    	});    	
    	advancedFilter.setCriteria(adCriteria);    	
    	
    	final ListGrid orderList = new ListGrid();
    	orderList.setDataSource(ds);
    	orderList.setWidth(550);
    	orderList.setHeight(300);
    	orderList.setShowFilterEditor(false);
    	orderList.setAutoFetchData(false);
    	orderList.setCanEdit(false);
    	orderList.setCanRemoveRecords(false);
    	
    	ListGridField orderCustomerName = new ListGridField("orderCustomerName");
    	orderCustomerName.setTitle("Customer name");
    	ListGridField itemDescription = new ListGridField("itemDescription");
    	ListGridField amount = new ListGridField("amount");
    	amount.setType(ListGridFieldType.FLOAT);
    	ListGridField quantity = new ListGridField("quantity");
    	quantity.setType(ListGridFieldType.INTEGER);
    	
    	orderList.setFields(orderCustomerName,itemDescription,amount,quantity);    	
    	
    	orderList.setHeaderSpans(new HeaderSpan[] {
    			new HeaderSpan("Items", new String[] {"itemCount", "items"})
        });
        
    	IButton filterButton = new IButton();
    	filterButton.setTitle("Filter");
    	filterButton.addClickHandler(new ClickHandler() {
			@Override
			public void onClick(ClickEvent event) {
				orderList.setData(new ListGridRecord[0]);
				DSRequest dsProperties = new DSRequest();
				dsProperties.setOperationId(operationForm.getValueAsString("operationId"));
				orderList.fetchData(advancedFilter.getCriteria(), null, dsProperties);
			}
    	});
    	
    	VStack vStack = new VStack();
    	vStack.setWidth100();
    	vStack.setMembersMargin(10);
    	vStack.setMembers(operationForm, advancedFilter, filterButton, orderList);
        
    	DSRequest dsProperties = new DSRequest();
		dsProperties.setOperationId(operationForm.getValueAsString("operationId"));
		orderList.fetchData(advancedFilter.getCriteria(), null, dsProperties);
    	
        vStack.draw();
    }

}