/*
 * Copyright 2011 gitblit.com.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.gitblit.client;

import java.awt.Color;
import java.awt.Component;
import java.text.MessageFormat;
import java.util.Date;

import javax.swing.JOptionPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableColumnModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableModel;

import com.gitblit.Constants.RpcRequest;

public class Utils {

	public static JTable newTable(TableModel model) {
		JTable table = new JTable(model);
		table.setCellSelectionEnabled(false);
		table.setRowSelectionAllowed(true);
		table.getTableHeader().setReorderingAllowed(false);
		table.setGridColor(new Color(0xd9d9d9));
		table.setBackground(Color.white);
		table.setDefaultRenderer(Date.class, new DateCellRenderer(null, Color.orange.darker()));
		return table;
	}

	public static void explainForbidden(Component c, RpcRequest request) {
		String msg = MessageFormat.format(
				"The request \"{0}\" has been forbidden by the Gitblit server.", request.name());
		JOptionPane.showMessageDialog(c, msg, "Forbidden", JOptionPane.ERROR_MESSAGE);
	}

	public static void explainUnauthorized(Component c, RpcRequest request) {
		String msg = MessageFormat.format(
				"This account is not authorized to execute the request \"{0}\".", request.name());
		JOptionPane.showMessageDialog(c, msg, "Unauthorized", JOptionPane.ERROR_MESSAGE);
	}

	public static void showException(Component c, Throwable t) {
		// TODO show the unexpected exception
	}

	public static void packColumns(JTable table, int margin) {
		for (int c = 0; c < table.getColumnCount(); c++) {
			packColumn(table, c, 4);
		}
	}

	// Sets the preferred width of the visible column specified by vColIndex.
	// The column will be just wide enough to show the column head and the
	// widest cell in the column. margin pixels are added to the left and right
	// (resulting in an additional width of 2*margin pixels).
	private static void packColumn(JTable table, int vColIndex, int margin) {
		DefaultTableColumnModel colModel = (DefaultTableColumnModel) table.getColumnModel();
		TableColumn col = colModel.getColumn(vColIndex);
		int width = 0;

		// Get width of column header
		TableCellRenderer renderer = col.getHeaderRenderer();
		if (renderer == null) {
			renderer = table.getTableHeader().getDefaultRenderer();
		}
		Component comp = renderer.getTableCellRendererComponent(table, col.getHeaderValue(), false,
				false, 0, 0);
		width = comp.getPreferredSize().width;

		// Get maximum width of column data
		for (int r = 0; r < table.getRowCount(); r++) {
			renderer = table.getCellRenderer(r, vColIndex);
			comp = renderer.getTableCellRendererComponent(table, table.getValueAt(r, vColIndex),
					false, false, r, vColIndex);
			width = Math.max(width, comp.getPreferredSize().width);
		}

		// Add margin
		width += 2 * margin;

		// Set the width
		col.setPreferredWidth(width);
	}
}