package com.quantum.wizards;

import com.quantum.sql.FilterSort;
import com.quantum.sql.TableRow;
import com.quantum.view.tableview.TableAdapter;
import com.quantum.view.tableview.TableView;

import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;

public class SortFilterPage extends WizardPage implements SQLPage {
	TableRow row;
	TableAdapter adapter;
	Button[] filter;
	Combo[] operator;
	Text[] filterValues;
	Button[] stringFlags;
	Button[] sort;
	Combo[] ascDesc;
	
	String columnNames[];
	Label query;
	FilterSort filterSort = new FilterSort();
	public SortFilterPage(String pageName) {
		super(pageName);
	}

	public void init(TableRow row, TableAdapter adapter) {
		this.row = row;
		this.adapter = adapter;
	}

	public void createControl(Composite parent) {
		System.out.println("page create control"); //$NON-NLS-1$
		
		Composite container = new Composite(parent, SWT.NULL);
		GridLayout layout = new GridLayout();
		container.setLayout(layout);
		int layoutColumns = 6;
		layout.numColumns = layoutColumns;

		if (row == null) {
			System.out.println("Row is null"); //$NON-NLS-1$
		}
		if (row.getColumnNames() == null) {
			System.out.println("Columns are null"); //$NON-NLS-1$
		}
		if (row.getTableData() == null) {
			System.out.println("Data is null"); //$NON-NLS-1$
		}
		
		columnNames = row.getColumnNames();
		String[] data = row.getTableData();
		for (int i = 0; i < row.getColumnCount(); i++) {
			System.out.println("data = " + i + "=" + data[i]); //$NON-NLS-1$ //$NON-NLS-2$
			System.out.println("column = " + i + "=" + columnNames[i]); //$NON-NLS-1$ //$NON-NLS-2$
		}
		int size = row.getColumnCount();
		filter = new Button[size];
		operator = new Combo[size];
		filterValues = new Text[size];
		stringFlags = new Button[size];
		sort = new Button[size];
		ascDesc = new Combo[size];
		for (int i = 0; i < row.getColumnCount(); i++) {
			filter[i] = new Button(container, SWT.CHECK);
			filter[i].setText(columnNames[i]);
			filter[i].addSelectionListener(new SelectionListener() {
				public void widgetDefaultSelected(SelectionEvent e) {
				}
				public void widgetSelected(SelectionEvent e) {
					updateQuery();
				}
			});

			operator[i] = new Combo(container, SWT.SINGLE | SWT.READ_ONLY);
			operator[i].add("="); //$NON-NLS-1$
			operator[i].add("<>"); //$NON-NLS-1$
			operator[i].add("<"); //$NON-NLS-1$
			operator[i].add(">"); //$NON-NLS-1$
			operator[i].addSelectionListener(new SelectionListener() {
				public void widgetDefaultSelected(SelectionEvent e) {
				}
				public void widgetSelected(SelectionEvent e) {
					updateQuery();
				}
			});
			
			filterValues[i] = new Text(container, SWT.BORDER);
			filterValues[i].setText(data[i]);
			filterValues[i].addModifyListener(new ModifyListener() {
				public void modifyText(ModifyEvent e) {
					updateQuery();
				}				
			});
			
			stringFlags[i] = new Button(container, SWT.CHECK);
			stringFlags[i].setText("String"); //$NON-NLS-1$
			stringFlags[i].addSelectionListener(new SelectionListener() {
				public void widgetDefaultSelected(SelectionEvent e) {
				}
				public void widgetSelected(SelectionEvent e) {
					updateQuery();
				}
			});
			
			final int index = i;
			sort[i] = new Button(container, SWT.CHECK);
			sort[i].setText(columnNames[i]);
			sort[i].addSelectionListener(new SelectionListener() {
				public void widgetDefaultSelected(SelectionEvent e) {
				}
				public void widgetSelected(SelectionEvent e) {
					if (sort[index].getSelection()) {
						filterSort.addSort(columnNames[index], ascDesc[index].getText());
					} else {
						filterSort.removeSort(columnNames[index]);
					}
					updateQuery();
				}
			});

			ascDesc[i] = new Combo(container, SWT.SINGLE | SWT.READ_ONLY);
			ascDesc[i].add(""); //$NON-NLS-1$
			ascDesc[i].add("ASC"); //$NON-NLS-1$
			ascDesc[i].add("DESC"); //$NON-NLS-1$
			ascDesc[i].addSelectionListener(new SelectionListener() {
				public void widgetDefaultSelected(SelectionEvent e) {
				}
				public void widgetSelected(SelectionEvent e) {
					if (sort[index].getSelection()) {
						filterSort.addSort(columnNames[index], ascDesc[index].getText());
					} else {
						filterSort.removeSort(columnNames[index]);
					}
					updateQuery();
				}
			});
		}
		query = new Label(container, SWT.WRAP);
 		GridData gridData = new GridData();
 		gridData.horizontalSpan = layoutColumns;
		gridData.horizontalAlignment = GridData.FILL;
		gridData.verticalAlignment = GridData.FILL;
		gridData.grabExcessHorizontalSpace = true;
		gridData.grabExcessVerticalSpace = true;
		query.setLayoutData(gridData);

 		setControl(container);
       
		setPageComplete(true);
	}

	public void updateQuery() {
		filterSort.clearFilters();
		for (int i = 0; i < filter.length; i++) {
			if (filter[i].getSelection()) {
				filterSort.addFilter(filter[i].getText(), operator[i].getText(), filterValues[i].getText(), stringFlags[i].getSelection());
			}
		}
		query.setText(filterSort.toString());
	}

	public boolean performFinish() {
		adapter.setFilterSort(filterSort);
		TableView.getInstance().refreshCurrent();
		return true;
	}
}