package jmri.jmrix.openlcb.swing.networktree;

import java.awt.GraphicsEnvironment;

import javax.swing.JFrame;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;

import jmri.util.junit.annotations.DisabledIfHeadless;

import org.junit.Assert;
import org.junit.jupiter.api.*;
import org.junit.Assume;
import org.openlcb.AbstractConnection;
import org.openlcb.Connection;
import org.openlcb.EventID;
import org.openlcb.EventState;
import org.openlcb.Message;
import org.openlcb.MimicNodeStore;
import org.openlcb.NodeID;
import org.openlcb.ProducerIdentifiedMessage;
import org.openlcb.ProtocolIdentificationReplyMessage;
import org.openlcb.SimpleNodeIdentInfoReplyMessage;
import org.openlcb.swing.networktree.NodeTreeRep;
import org.openlcb.swing.networktree.TreePane;

/**
 * Simulate nine nodes interacting on a single gather/scatter "link", and feed
 * them to monitor.
 * <ul>
 * <li>Nodes 1,2,3 send Event A to 8,9
 * <li>Node 4 sends Event B to node 7
 * <li>Node 5 sends Event C to node 6
 * </ul>
 * <p>
 * NOTE: This file actually Demonstrates the openLCB TreePane class.
 * <p>
 *
 * @author Bob Jacobsen Copyright 2009
 */
public class TreePaneDemo {

    final NodeID nid1 = new NodeID(new byte[]{0, 0, 0, 0, 0, 1});
    final NodeID nid2 = new NodeID(new byte[]{0, 0, 0, 0, 0, 2});

    final EventID eventA = new EventID(new byte[]{1, 0, 0, 0, 0, 0, 1, 0});

    final Message pipmsg = new ProtocolIdentificationReplyMessage(nid2, nid2, 0xF01800000000L);

    JFrame frame;
    TreePane pane;
    final Connection connection = new AbstractConnection() {
        @Override
        public void put(Message msg, Connection sender) {
        }
    };

    MimicNodeStore store;

    @BeforeAll
    public static void checkSeparate() {
       // this test is run separately because it leaves a lot of threads behind
        org.junit.Assume.assumeFalse("Ignoring intermittent test", Boolean.getBoolean("jmri.skipTestsRequiringSeparateRunning"));
    }

    @BeforeEach
    public void setUp() {
        jmri.util.JUnitUtil.setUp();
        store = new MimicNodeStore(connection, nid1);
        Message msg = new ProducerIdentifiedMessage(nid1, eventA, EventState.Unknown);
        store.put(msg, null);

        // build the TreePane, but don't put it in a frame (yet).
        pane = new TreePane();
        pane.initComponents(store, null, null,
                new NodeTreeRep.SelectionKeyLoader() {
            @Override
            public NodeTreeRep.SelectionKey cdiKey(String name, NodeID node) {
                return new NodeTreeRep.SelectionKey(name, node) {
                    @Override
                    public void select(DefaultMutableTreeNode rep) {
                        System.out.println("Making special fuss over: " + rep + " for " + name + " on " + node);
                    }
                };
            }
        });

        Assume.assumeFalse(GraphicsEnvironment.isHeadless());
        // Test is really popping a window before doing all else
        frame = new JFrame();
        frame.setTitle("TreePane Test");
        frame.add(pane);
        frame.pack();
        frame.setMinimumSize(new java.awt.Dimension(200, 200));
        frame.setVisible(true);

    }

    @AfterEach
    public void tearDown() {
        pane.release();
        pane = null;
        if (!GraphicsEnvironment.isHeadless()) {
            frame.setVisible(false);
            frame.dispose();
            new org.netbeans.jemmy.QueueTool().waitEmpty();  //pause for frame to close
        }
        jmri.util.JUnitUtil.tearDown();
        store = null;
    }

    @Test
    public void testCTor() {
        // constructor in setUp
        Assert.assertNotNull(pane);
    }

    @Test
    @DisabledIfHeadless
    public void testPriorMessage() {
        frame.setTitle("Prior Message");
    }

    @Test
    @DisabledIfHeadless
    public void testAfterMessage() {
        frame.setTitle("After Message");
        Message msg = new ProducerIdentifiedMessage(nid2, eventA, EventState.Unknown);
        store.put(msg, null);
    }

    @Test
    @DisabledIfHeadless
    public void testWithProtocolID() {
        frame.setTitle("2nd has protocol id");
        Message msg;
        msg = new ProducerIdentifiedMessage(nid2, eventA, EventState.Unknown);
        store.put(msg, null);
        store.put(pipmsg, null);
    }

    @Test
    @DisabledIfHeadless
    public void testWith1stSNII() {
        frame.setTitle("3rd has PIP && 1st SNII");
        Message msg;
        msg = new ProducerIdentifiedMessage(nid2, eventA, EventState.Unknown);
        store.put(msg, null);
        store.put(pipmsg, null);

        msg = new SimpleNodeIdentInfoReplyMessage(nid2, nid2,
                new byte[]{0x01, 0x31, 0x32, 0x33, 0x41, 0x42, (byte) 0xC2, (byte) 0xA2, 0x44, 0x00}
        );
        store.put(msg, null);
    }

    @Test
    @DisabledIfHeadless
    public void testWithSelect() {
        frame.setTitle("listener test");

        pane.addTreeSelectionListener(e -> {
            JTree tree = (JTree) e.getSource();
            DefaultMutableTreeNode node = (DefaultMutableTreeNode) tree.getLastSelectedPathComponent();

            if (node == null) {
                return;
            }
            System.out.print("Test prints selected treenode " + node);
            if (node.getUserObject() instanceof NodeTreeRep.SelectionKey) {
                System.out.println(" and invokes");
                ((NodeTreeRep.SelectionKey) node.getUserObject()).select(node);
            } else {
                System.out.println();
            }
        });
        Message msg;
        msg = new ProducerIdentifiedMessage(nid2, eventA, EventState.Unknown);
        store.put(msg, null);
        store.put(pipmsg, null);

        msg = new SimpleNodeIdentInfoReplyMessage(nid2, nid2,
                new byte[]{0x01, 0x31, 0x32, 0x33, 0x41, 0x42, (byte) 0xC2, (byte) 0xA2, 0x44, 0x00}
        );
        store.put(msg, null);
    }

}