package com.sbs.jpm.client;

import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.JavaScriptObject;
import com.google.gwt.user.client.ui.RootPanel;
import com.smartgwt.client.data.DSRequest;
import com.smartgwt.client.data.DSResponse;
import com.smartgwt.client.data.DataSource;
import com.smartgwt.client.data.DataSourceField;
import com.smartgwt.client.data.SortSpecifier;
import com.smartgwt.client.rpc.RPCResponse;
import com.smartgwt.client.types.DSDataFormat;
import com.smartgwt.client.types.DSProtocol;
import com.smartgwt.client.types.FieldType;
import com.smartgwt.client.types.SortDirection;
import com.smartgwt.client.util.JSOHelper;
import com.smartgwt.client.util.SC;
import com.smartgwt.client.widgets.Button;
import com.smartgwt.client.widgets.events.ClickEvent;
import com.smartgwt.client.widgets.events.ClickHandler;
import com.smartgwt.client.widgets.grid.ListGridRecord;
import com.smartgwt.client.widgets.layout.VLayout;
import com.smartgwt.client.widgets.tree.TreeGrid;
import com.smartgwt.client.widgets.tree.TreeGridField;
import com.smartgwt.client.widgets.tree.TreeNode;
import com.smartgwt.client.widgets.tree.events.DataArrivedEvent;
import com.smartgwt.client.widgets.tree.events.DataArrivedHandler;

public class TestCase implements EntryPoint {

	private WBSPanel wbsPanel;
	private TaskDataSource dataSource;

	public void onModuleLoad() {
		
//		SC.showConsole();

		dataSource = new TaskDataSource();

		wbsPanel = new WBSPanel();
		wbsPanel.setWidth100();
		wbsPanel.setHeight100();

		RootPanel.get().add(wbsPanel);
	}

	public class WBSPanel extends VLayout {

		private TreeGrid tasksTreeGrid;
		private TreeGridField nameTreeGridField;

		public WBSPanel() {

			nameTreeGridField = new TreeGridField();
			nameTreeGridField.setName(TaskDataSource.NAME_FIELD);
			nameTreeGridField.setTitle("Task Name");
			nameTreeGridField.setTreeField(true);

			tasksTreeGrid = new TreeGrid();
			tasksTreeGrid.setWidth(500);
			tasksTreeGrid.setHeight(500);
			tasksTreeGrid.setDataSource(dataSource);
			tasksTreeGrid.setLoadDataOnDemand(false);
			tasksTreeGrid.setCanEdit(true);
			tasksTreeGrid.setEditByCell(true);
			tasksTreeGrid.fetchData();
			tasksTreeGrid.setSort(new SortSpecifier[] { new SortSpecifier(
					TaskDataSource.NAME_FIELD, SortDirection.ASCENDING) });
			tasksTreeGrid.setFields(nameTreeGridField);
			tasksTreeGrid.addDataArrivedHandler(new DataArrivedHandler() {
				public void onDataArrived(DataArrivedEvent event) {
					tasksTreeGrid.getData().openAll();
				}
			});

			Button button = new Button();
			button.setTitle("Resort");
			button.addClickHandler(new ClickHandler() {
				@Override
				public void onClick(ClickEvent event) {
					tasksTreeGrid.resort();
				}
			});

			this.setMembers(button, tasksTreeGrid);
		}
	}

	public class TaskTreeNode extends TreeNode {

		public TaskTreeNode(Long taskId, Long reportsTo, String name) {
			setTaskId(taskId);
			setReportsTo(reportsTo);
			setName(name);
		}

		public void setTaskId(Long value) {
			setAttribute(TaskDataSource.UNIQUE_ID_FIELD, value);
		}

		public void setReportsTo(Long value) {
			setAttribute(TaskDataSource.PARENT_UNIQUE_ID, value);
		}

		public void setName(String name) {
			setAttribute(TaskDataSource.NAME_FIELD, name);
		}
	}

	public class TaskDataSource extends GwtRpcDataSource {
		private static final String DS_UNIQUE_ID = "_TaskDataSource";

		public static final String PARENT_UNIQUE_ID = "parentUniqueId"
				+ DS_UNIQUE_ID;
		public static final String UNIQUE_ID_FIELD = "uniqueIdField"
				+ DS_UNIQUE_ID;
		public static final String NAME_FIELD = "nameField" + DS_UNIQUE_ID;

		private TaskDataSource() {

			DataSourceField uniqueId = new DataSourceField();
			uniqueId.setName(UNIQUE_ID_FIELD);
			uniqueId.setPrimaryKey(true);
			uniqueId.setHidden(true);
			uniqueId.setType(FieldType.INTEGER);

			DataSourceField reportsToField = new DataSourceField();
			reportsToField.setName(PARENT_UNIQUE_ID);
			reportsToField.setForeignKey(DS_UNIQUE_ID + "." + UNIQUE_ID_FIELD);
			reportsToField.setHidden(true);
			reportsToField.setType(FieldType.INTEGER);

			this.setID(DS_UNIQUE_ID);
			this.setFields(uniqueId, reportsToField);
			this.setCacheAllData(true);
			this.setCacheMaxAge(3600);
		}

		@Override
		protected void executeFetch(final String requestId, DSRequest request,
				final DSResponse response) {

			TaskTreeNode root = new TaskTreeNode(2l, 1l, "Charles Madigen");
			TaskTreeNode node2 = new TaskTreeNode(3l, 2l, "Rogine Leger");
			TaskTreeNode node3 = new TaskTreeNode(4l, 3l, "Gene Porter");
			TaskTreeNode node4 = new TaskTreeNode(5l, 3l, "Olivier Doucet");
			TaskTreeNode node5 = new TaskTreeNode(6l, 3l, "Cheryl Pearson");
			TaskTreeNode node6 = new TaskTreeNode(7l, 2l, "Cheryl Pearson");
			TaskTreeNode node7 = new TaskTreeNode(8l, 2l, "Cheryl Pearson");
			TaskTreeNode node8 = new TaskTreeNode(9l, 2l, "Cheryl Pearson");
			TaskTreeNode node9 = new TaskTreeNode(10l, 2l, "Cheryl Pearson");
			TaskTreeNode node10 = new TaskTreeNode(11l, 2l, "Cheryl Pearson");

			response.setData(new TreeNode[] { root, node2, node3, node4, node5,
					node6, node7, node8, node9, node10 });
			response.setStatus(RPCResponse.STATUS_SUCCESS);
			response.setInvalidateCache(true);
			processResponse(requestId, response);
		}

		@Override
		protected void executeAdd(final String requestId, DSRequest request,
				final DSResponse response) {
		}

		@Override
		protected void executeUpdate(String requestId, DSRequest request,
				DSResponse response) {

			ListGridRecord editedRecord = getEditedRecord(request);
			response.setData(new ListGridRecord[] { editedRecord });
			response.setStatus(DSResponse.STATUS_SUCCESS);
			processResponse(requestId, response);
		}

		@Override
		protected void executeRemove(final String requestId, DSRequest request,
				final DSResponse response) {
		}
	}

	public abstract class GwtRpcDataSource extends DataSource {

		public GwtRpcDataSource() {
			setDataProtocol(DSProtocol.CLIENTCUSTOM);
			setDataFormat(DSDataFormat.CUSTOM);
			setClientOnly(false);
		}

		@Override
		protected Object transformRequest(DSRequest request) {
			String requestId = request.getRequestId();
			DSResponse response = new DSResponse();
			response.setAttribute("clientContext",
					request.getAttributeAsObject("clientContext"));
			response.setStatus(0);

			switch (request.getOperationType()) {
			case FETCH:
				executeFetch(requestId, request, response);
				break;
			case ADD:
				executeAdd(requestId, request, response);
				break;
			case UPDATE:
				executeUpdate(requestId, request, response);
				break;
			case REMOVE:
				executeRemove(requestId, request, response);
				break;
			default:
				break;
			}
			return request.getData();
		}

		@Override
		public void processResponse(String requestId,
				DSResponse responseProperties) {
			super.processResponse(requestId, responseProperties);
		}

		protected abstract void executeFetch(String requestId,
				DSRequest request, DSResponse response);

		protected abstract void executeAdd(String requestId, DSRequest request,
				DSResponse response);

		protected abstract void executeUpdate(String requestId,
				DSRequest request, DSResponse response);

		protected abstract void executeRemove(String requestId,
				DSRequest request, DSResponse response);

	}

	protected ListGridRecord getEditedRecord(DSRequest request) {
		ListGridRecord newRecord = new ListGridRecord();
		newRecord = getOldRecord(request);
		JavaScriptObject data = request.getData();
		JSOHelper.apply(data, newRecord.getJsObj());
		return newRecord;
	}

	protected ListGridRecord getOldRecord(DSRequest request) {
		JavaScriptObject oldValues = request
				.getAttributeAsJavaScriptObject("oldValues");
		ListGridRecord oldRecord = new ListGridRecord();
		JSOHelper.apply(oldValues, oldRecord.getJsObj());
		return oldRecord;
	}
}
