/**
 * Copyright (C) 2004-2011 Jive Software. All rights reserved.
 * <p>
 * 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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 org.jivesoftware.spark.plugin.jingle;

import org.jivesoftware.resource.SparkRes;
import org.jivesoftware.spark.SparkManager;
import org.jivesoftware.spark.component.tabbedPane.SparkTab;
import org.jivesoftware.spark.ui.ChatRoom;
import org.jivesoftware.spark.ui.SparkTabHandler;
import org.jivesoftware.spark.plugin.jingle.JingleStateManager.JingleRoomState;

import java.awt.Color;
import java.awt.Component;

/**
 * Handles the tab handling for all Jingle calls.
 *
 * @author Derek DeMoro
 */
public class JingleTabHandler extends SparkTabHandler {
    private final JingleStateManager manager = JingleStateManager.getInstance();

    @Override
    public boolean isTabHandled(SparkTab tab, Component component, boolean isSelectedTab, boolean chatFrameFocused) {
        if (component instanceof ChatRoom) {
            JingleRoomState roomState = manager.getJingleRoomState((ChatRoom) component);
            if (roomState == null) {
                // This is not a jingle room.
                return false;
            }
            // This is a room with a jingle session.
            handleJingleRoom(roomState, tab, (ChatRoom) component, isSelectedTab, chatFrameFocused);
            return true;
        }
        return false;
    }

    /**
     * Called when the underlying component has a jingle session.
     *
     * @param state            the JingleRoomState.
     * @param tab              the SparkTab.
     * @param room             the ChatRoom.
     * @param isSelectedTab    true if the tab is selected.
     * @param chatFrameFocused true if the chat frame is in focus.
     */
    private void handleJingleRoom(JingleRoomState state, SparkTab tab, ChatRoom room, boolean isSelectedTab, boolean chatFrameFocused) {
        boolean isTyping = SparkManager.getChatManager().containsTypingNotification(room);
        // Check if it is typing.
        if (isTyping) {
            tab.setIcon(SparkRes.getImageIcon(SparkRes.Icon.SMALL_MESSAGE_EDIT_IMAGE));
        } else if (JingleRoomState.ringing == state) {
            tab.setIcon(JinglePhoneRes.getImageIcon("ANSWER_PHONE_IMAGE"));
        } else if (JingleRoomState.inJingleCall == state) {
            tab.setIcon(SparkRes.getImageIcon(SparkRes.Icon.HEADSET_IMAGE));
        } else if (JingleRoomState.callWasEnded == state) {
            tab.setIcon(JinglePhoneRes.getImageIcon("HANG_UP_PHONE_16x16_IMAGE"));
        }

        if (!chatFrameFocused || !isSelectedTab) {
            if (room.getUnreadMessageCount() > 0 || JingleRoomState.ringing == state) {
                // Make tab red.
                tab.setTitleColor(Color.red);
                tab.setTabBold(true);
            }
            // Handle unread message count.
            int unreadMessageCount = room.getUnreadMessageCount();
            String appendedMessage = "";
            if (unreadMessageCount > 1) {
                appendedMessage = " (" + unreadMessageCount + ")";
            }
            tab.setTabTitle(room.getTabTitle() + appendedMessage);
        }

        // Should only set the icon to default if the frame is in focus
        // and the tab is the selected component.
        if (isSelectedTab && chatFrameFocused) {
            tab.setTitleColor(Color.black);
            tab.setTabFont(tab.getDefaultFont());
            tab.setTabTitle(room.getTabTitle());
            // Clear unread message count.
            room.clearUnreadMessageCount();
        }
    }
}
