package jmri.jmrix.can.cbus;

import jmri.*;
import jmri.jmrix.can.CanMessage;
import jmri.jmrix.can.CanReply;
import jmri.jmrix.can.CanSystemConnectionMemo;
import jmri.jmrix.can.TrafficControllerScaffold;
import jmri.jmrix.can.cbus.node.CbusNode;
import jmri.jmrix.can.cbus.node.CbusNodeTableDataModel;
import jmri.util.JUnitUtil;

import org.junit.Assert;
import org.junit.jupiter.api.*;

/**
 *
 * @author Paul Bender       Copyright (C) 2017
 * @author Steve Young       Copyright (C) 2019
 * @author Daniel Bergqvist  Copyright (C) 2020
 * @author Andrew Crosland   Copyright (C) 2021
 */
public class CbusPredefinedMetersTest {

    private CanSystemConnectionMemo memo;
    private TrafficControllerScaffold tcis;
    private CbusPredefinedMeters mm;

    @BeforeEach
    public void setUp() {
        JUnitUtil.setUp();
        JUnitUtil.resetInstanceManager();
        JUnitUtil.resetProfileManager();
        JUnitUtil.initConfigureManager();

        // This test requires a registred connection config since ProxyMeterManager
        // auto creates system meter managers using the connection configs.

       /* InstanceManager.setDefault(jmri.jmrix.ConnectionConfigManager.class, new jmri.jmrix.ConnectionConfigManager());
        jmri.jmrix.NetworkPortAdapter pa = new jmri.jmrix.can.adapters.gridconnect.net.MergNetworkDriverAdapter();
        pa.setSystemPrefix("M");
        jmri.jmrix.ConnectionConfig cc = new jmri.jmrix.can.adapters.gridconnect.net.MergConnectionConfig(pa);
        InstanceManager.getDefault(jmri.jmrix.ConnectionConfigManager.class).add(cc);
*/
        memo = new CanSystemConnectionMemo();
        tcis = new TrafficControllerScaffold();
        memo.setTrafficController(tcis);
        memo.setProtocol(jmri.jmrix.can.CanConfigurationManager.MERGCBUS);
        mm = memo.get(CbusPredefinedMeters.class);
    }

    @AfterEach
    public void tearDown() {
        mm = null;
        tcis.terminateThreads();
        tcis=null;
        memo.dispose();
        memo = null;
        JUnitUtil.tearDown();
    }

    public double getCurrent() {
        var meter = InstanceManager.getDefault(MeterManager.class).getBySystemName("MVCBUSCurrentMeter");
        Assertions.assertNotNull(meter);
        return meter.getKnownAnalogValue();
    }

    public double getCurrentExtra() {
        var meter = InstanceManager.getDefault(MeterManager.class).getBySystemName("MVCBUSCurrentMeter2");
        Assertions.assertNotNull(meter);
        return meter.getKnownAnalogValue();
    }

    public double getVoltage() {
        var meter = InstanceManager.getDefault(MeterManager.class).getBySystemName("MVCBUSVoltageMeter");
        Assertions.assertNotNull(meter);
        return meter.getKnownAnalogValue();
    }

    private void enable() {
        mm.updateTask.enable(mm.currentMeter);
        mm.updateTask.enable(mm.currentMeterExtra);
        mm.updateTask.enable(mm.voltageMeter);
    }

    private void disable() {
        mm.updateTask.disable(mm.currentMeter);
        mm.updateTask.disable(mm.currentMeterExtra);
        mm.updateTask.disable(mm.voltageMeter);
    }

    @Test
    public void testEnableDisable(){

        Assert.assertEquals("no listener to start",0,tcis.numListeners());

        enable();
        Assert.assertEquals("listening",1,tcis.numListeners());
        disable();
        Assert.assertEquals("not listening",0,tcis.numListeners());

        memo.get(CbusPreferences.class).setAllocateNNListener(false);
        memo.get(CbusPreferences.class).setNodeBackgroundFetchDelay(0);
        CbusNodeTableDataModel nodeModel = memo.get(CbusConfigurationManager.class)
            .provide(CbusNodeTableDataModel.class);

        Assertions.assertEquals(2,tcis.numListeners(),"node table and programmer listening "+tcis.getListeners());
        enable();
        Assert.assertEquals("mm listening",3,tcis.numListeners());
        disable();
        Assert.assertEquals("mm not listening",2,tcis.numListeners());

        CbusNode testCs = nodeModel.provideNodeByNodeNum(777);
        testCs.setCsNum(0);
        Assert.assertEquals("node + node table listening",3,tcis.numListeners());

        enable();
        Assert.assertEquals("multimeter listening",4,tcis.numListeners());
        disable();
        Assert.assertEquals("mm not listening",3,tcis.numListeners());

        nodeModel.dispose();
        testCs.dispose();

    }

    @Test
    public void testMultiMCanReply(){

        memo.get(CbusPreferences.class).setAllocateNNListener(false);
        memo.get(CbusPreferences.class).setNodeBackgroundFetchDelay(0);
        CbusNodeTableDataModel nodeModel = memo.get(CbusConfigurationManager.class)
            .provide(CbusNodeTableDataModel.class);

        CbusNode testCs = nodeModel.provideNodeByNodeNum(54321);
        testCs.setCsNum(0);

        enable();

        CanReply r = new CanReply(tcis.getCanid());
        r.setNumDataElements(7);
        r.setElement(0, CbusConstants.CBUS_ACOF2);
        r.setElement(1, 0xd4); // nn 54322
        r.setElement(2, 0x32); // nn 54322
        r.setElement(3, 0x00); // en 1
        r.setElement(4, 0x01); // en 1
        r.setElement(5, 0x00); // 8mA
        r.setElement(6, 0x08); // 8mA
        mm.reply(r);

        Assert.assertEquals(0,getCurrent(),0.001 ); // wrong opc

        r.setElement(0, CbusConstants.CBUS_ACON2);
        mm.reply(r);

        Assert.assertEquals(0,getCurrent(),0.001 ); // wrong node

        r.setElement(2, 0x31); // nn 54321
        mm.reply(r);
        Assert.assertEquals(8,getCurrent(),0.001 );

        r.setElement(5, 0x12); // 4807mA
        r.setElement(6, 0xc7); // 4807mA
        mm.reply(r);
        Assert.assertEquals(4807,getCurrent(),0.001 );

        CanMessage m = new CanMessage(tcis.getCanid());
        m.setNumDataElements(7);
        m.setElement(0, CbusConstants.CBUS_ACON2);
        m.setElement(1, 0xd4); // nn 54321
        m.setElement(2, 0x31); // nn 54321
        m.setElement(3, 0x00); // en1
        m.setElement(4, 0x01); // en1
        m.setElement(5, 0x00); // 0mA
        m.setElement(6, 0x00); // 0mA

        mm.message(m);
        Assert.assertEquals(4807,getCurrent(),0.001 ); // CanMessage Ignored

        r = new CanReply(tcis.getCanid());
        r.setNumDataElements(7);
        r.setElement(0, CbusConstants.CBUS_ACON2);
        r.setElement(1, 0xd4); // nn 54321
        r.setElement(2, 0x31); // nn 54321
        r.setElement(3, 0x00); // en1
        r.setElement(4, 0x01); // en1
        r.setElement(5, 0x00); // 0mA
        r.setElement(6, 0x00); // 0mA

        mm.reply(r);
        Assert.assertEquals(0,getCurrent(),0.001 );

        // wrong event num
        r = new CanReply(tcis.getCanid());
        r.setNumDataElements(7);
        r.setElement(0, CbusConstants.CBUS_ACON2);
        r.setElement(1, 0xd4); // nn 54321
        r.setElement(2, 0x31); // nn 54321
        r.setElement(3, 0x00); // en3
        r.setElement(4, 0x03); // en3
        r.setElement(5, 0x12); // 4807mA
        r.setElement(6, 0xc7); // 4807mA

        mm.reply(r);
        Assert.assertEquals("Wrong event",0,getCurrent(),0.001 );
        r.setElement(4, 0x01); // en1
        r.setRtr(true);

        mm.reply(r);
        Assert.assertEquals(0,getCurrent(),0.001 );

        r.setExtended(true);
        r.setRtr(false);

        mm.reply(r);
        Assert.assertEquals(0,getCurrent(),0.001 );

        r.setExtended(false);
        mm.reply(r);
        Assert.assertEquals(4807,getCurrent(),0.001 );

        disable();

        nodeModel.dispose();
        testCs.dispose();

    }

    @Test
    public void testMultiMExtraCanReply(){

        memo.get(CbusPreferences.class).setAllocateNNListener(false);
        memo.get(CbusPreferences.class).setNodeBackgroundFetchDelay(0);
        CbusNodeTableDataModel nodeModel = memo.get(CbusConfigurationManager.class)
            .provide(CbusNodeTableDataModel.class);

        CbusNode testCs = nodeModel.provideNodeByNodeNum(54321);
        testCs.setCsNum(0);

        enable();

        CanReply r = new CanReply(tcis.getCanid());
        r.setNumDataElements(7);
        r.setElement(0, CbusConstants.CBUS_ACOF2);
        r.setElement(1, 0xd4); // nn 54322
        r.setElement(2, 0x32); // nn 54322
        r.setElement(3, 0x00); // en 3
        r.setElement(4, 0x03); // en 3
        r.setElement(5, 0x00); // 8mA
        r.setElement(6, 0x08); // 8mA
        mm.reply(r);

        Assert.assertEquals(0,getCurrentExtra(),0.001 ); // wrong opc

        r.setElement(0, CbusConstants.CBUS_ACON2);
        mm.reply(r);

        Assert.assertEquals(0,getCurrentExtra(),0.001 ); // wrong node

        r.setElement(2, 0x31); // nn 54321
        mm.reply(r);
        Assert.assertEquals(8,getCurrentExtra(),0.001 );

        r.setElement(5, 0x12); // 4807mA
        r.setElement(6, 0xc7); // 4807mA
        mm.reply(r);
        Assert.assertEquals(4807,getCurrentExtra(),0.001 );

        CanMessage m = new CanMessage(tcis.getCanid());
        m.setNumDataElements(7);
        m.setElement(0, CbusConstants.CBUS_ACON2);
        m.setElement(1, 0xd4); // nn 54321
        m.setElement(2, 0x31); // nn 54321
        r.setElement(3, 0x00); // en 3
        r.setElement(4, 0x03); // en 3
        m.setElement(5, 0x00); // 0mA
        m.setElement(6, 0x00); // 0mA

        mm.message(m);
        Assert.assertEquals(4807,getCurrentExtra(),0.001 ); // CanMessage Ignored

        r = new CanReply(tcis.getCanid());
        r.setNumDataElements(7);
        r.setElement(0, CbusConstants.CBUS_ACON2);
        r.setElement(1, 0xd4); // nn 54321
        r.setElement(2, 0x31); // nn 54321
        r.setElement(3, 0x00); // en 3
        r.setElement(4, 0x03); // en 3
        r.setElement(5, 0x00); // 0mA
        r.setElement(6, 0x00); // 0mA

        mm.reply(r);
        Assert.assertEquals(0,getCurrentExtra(),0.001 );

        // wrong event num
        r = new CanReply(tcis.getCanid());
        r.setNumDataElements(7);
        r.setElement(0, CbusConstants.CBUS_ACON2);
        r.setElement(1, 0xd4); // nn 54321
        r.setElement(2, 0x31); // nn 54321
        r.setElement(3, 0x00); // en 2
        r.setElement(4, 0x02); // en 2
        r.setElement(5, 0x12); // 4807mA
        r.setElement(6, 0xc7); // 4807mA

        mm.reply(r);
        Assert.assertEquals("Wrong event",0,getCurrentExtra(),0.001 );
        r.setElement(4, 0x03); // en 3
        r.setRtr(true);

        mm.reply(r);
        Assert.assertEquals(0,getCurrentExtra(),0.001 );

        r.setExtended(true);
        r.setRtr(false);

        mm.reply(r);
        Assert.assertEquals(0,getCurrentExtra(),0.001 );

        r.setExtended(false);
        mm.reply(r);
        Assert.assertEquals(4807,getCurrentExtra(),0.001 );

        disable();

        nodeModel.dispose();
        testCs.dispose();

    }

    @Test
    public void testMultiMVoltCanReply(){

        memo.get(CbusPreferences.class).setAllocateNNListener(false);
        memo.get(CbusPreferences.class).setNodeBackgroundFetchDelay(0);
        CbusNodeTableDataModel nodeModel = memo.get(CbusConfigurationManager.class)
            .provide(CbusNodeTableDataModel.class);

        CbusNode testCs = nodeModel.provideNodeByNodeNum(54321);
        testCs.setCsNum(0);

        enable();

        CanReply r = new CanReply(tcis.getCanid());
        r.setNumDataElements(7);
        r.setElement(0, CbusConstants.CBUS_ACON2);
        r.setElement(1, 0xd4); // nn 54321
        r.setElement(2, 0x31); // nn 54321
        r.setElement(3, 0x00); // en 2
        r.setElement(4, 0x02); // en 2
        r.setElement(5, 0x00); // 12.9V
        r.setElement(6, 0x81); // 12.9V
        //System.out.format("testMultiMVoltCanReply: reply(12.9) volt%n");
        mm.reply(r);
        Assert.assertEquals(12.9,getVoltage(),0.001 );

        r = new CanReply(tcis.getCanid());
        r.setNumDataElements(7);
        r.setElement(0, CbusConstants.CBUS_ACON2);
        r.setElement(1, 0xd4); // nn 54321
        r.setElement(2, 0x31); // nn 54321
        r.setElement(3, 0x00); // en 2
        r.setElement(4, 0x02); // en 2
        r.setElement(5, 0x01); // 25.6V
        r.setElement(6, 0x00); // 25.6V
        mm.reply(r);
        Assert.assertEquals(25.6,getVoltage(),0.001 );

        r = new CanReply(tcis.getCanid());
        r.setNumDataElements(7);
        r.setElement(0, CbusConstants.CBUS_ACON2);
        r.setElement(1, 0xd4); // nn 54321
        r.setElement(2, 0x31); // nn 54321
        r.setElement(3, 0x00); // en2
        r.setElement(4, 0x01); // en2
        r.setElement(5, 0x00); // 0V
        r.setElement(6, 0x00); // 0V
        mm.reply(r);
        Assert.assertEquals(0,getCurrent(),0.001 );

        disable();

        nodeModel.dispose();
        testCs.dispose();

    }

    @Test
    public void testSmallFuncs(){
        Assert.assertEquals("ma units", InstanceManager.getDefault(MeterManager.class).getBySystemName("MVCBUSCurrentMeter").getUnit(), Meter.Unit.Milli);
    }

    // private static final Logger log = LoggerFactory.getLogger(CbusPredefinedMetersTest.class);

}