package com.ts3client.ui;

import com.ts3client.net.ChannelNode;
import com.ts3client.net.ClientEntry;

import javax.swing.ImageIcon;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
import java.awt.Component;

/**
 * Draws a {@link ServerTreePanel} row: the status icon and the label. The group
 * icon strip is painted separately, right-aligned, by {@link DropIndicatorTree}.
 */
final class ServerTreeCellRenderer extends DefaultTreeCellRenderer {

    @Override
    public Component getTreeCellRendererComponent(JTree tree, Object value, boolean sel,
                                                  boolean expanded, boolean leaf, int row,
                                                  boolean hasFocus) {
        super.getTreeCellRendererComponent(tree, value, sel, expanded, leaf, row, hasFocus);
        setBackgroundNonSelectionColor(Theme.TREE_BG);
        setBackgroundSelectionColor(Theme.TREE_SELECTION);
        setBorderSelectionColor(Theme.TREE_SELECTION);

        Object obj = ((DefaultMutableTreeNode) value).getUserObject();
        if (obj instanceof ChannelNode) {
            ChannelNode c = (ChannelNode) obj;
            Spacers.Spacer spacer = Spacers.parse(c.name);
            if (spacer != null) {
                setText(Spacers.render(spacer, 40));
                setIcon(null);
                setForeground(Theme.IDLE_CLIENT);
                setFont(Theme.UI_FONT);
            } else {
                setText(c.name);
                setIcon(iconFor(c));
                setForeground(Theme.CHANNEL_TEXT);
                setFont(Theme.UI_BOLD);
            }
        } else if (obj instanceof ClientEntry) {
            ClientEntry cl = (ClientEntry) obj;
            String label = cl.nickname;
            if (cl.away && !cl.awayMessage.isEmpty()) label += "  [" + cl.awayMessage + "]";
            setText(label);
            setIcon(iconFor(cl));
            setForeground(cl.talking ? Theme.TALKING : Theme.TREE_TEXT);
            setFont(cl.talking ? Theme.UI_BOLD : Theme.UI_FONT);
        } else {
            // root / server
            setText(String.valueOf(obj));
            setIcon(Icons.server());
            setForeground(Theme.SERVER_TEXT);
            setFont(Theme.UI_BOLD);
        }
        return this;
    }

    private ImageIcon iconFor(ChannelNode c) {
        if (c.hasPassword) return Icons.channelLocked(c.subscribed);
        if (c.maxClients >= 0 && c.clients.size() >= c.maxClients) return Icons.channelFull(c.subscribed);
        return Icons.channel(c.subscribed);
    }

    /** The client's state, in the order the official client gives them priority. */
    private ImageIcon iconFor(ClientEntry cl) {
        if (cl.isQuery()) return Icons.clientQuery();
        if (!cl.outputHardware) return Icons.speakerDisabled();
        if (cl.outputMuted) return Icons.speakerMuted();
        if (!cl.inputHardware) return Icons.micDisabled();
        if (cl.inputMuted) return Icons.micMuted();
        if (cl.away) return Icons.clientAway();
        if (cl.channelCommander) {
            return cl.talking ? Icons.clientCommanderTalking() : Icons.clientCommander();
        }
        if (cl.talking) return Icons.clientTalking();
        return Icons.clientIdle();
    }
}