package jmri.implementation;

import jmri.*;
import jmri.util.JUnitUtil;

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

/**
 *
 * @author Paul Bender Copyright (C) 2017
 */
public class TurnoutSignalMastTest {

    @Test
    public void testCTor() {
        TurnoutSignalMast t = new TurnoutSignalMast("IF$tsm:basic:one-searchlight($1)");
        Assert.assertNotNull("exists",t);
    }

    @Test
    public void testSetAspect() {
        Turnout it1 = InstanceManager.turnoutManagerInstance().provideTurnout("IT1");
        Turnout it2 = InstanceManager.turnoutManagerInstance().provideTurnout("IT2");
        TurnoutSignalMast t = new TurnoutSignalMast("IF$tsm:basic:one-searchlight($1)");
        t.resetPreviousStates(false);
        
        t.setTurnout("Stop", "IT1", Turnout.THROWN);
        t.setTurnout("Clear", "IT2", Turnout.CLOSED);
        
        t.setAspect("Clear");
        Assert.assertEquals("Clear", t.getAspect());
        Assert.assertEquals(Turnout.UNKNOWN, it1.getCommandedState()); // not thrown
        Assert.assertEquals(Turnout.CLOSED, it2.getCommandedState());
        
        t.setAspect("Stop");
        Assert.assertEquals("Stop", t.getAspect());
        Assert.assertEquals(Turnout.THROWN, it1.getCommandedState());
        Assert.assertEquals(Turnout.CLOSED, it2.getCommandedState()); // unchanged
        
        // try an unconfigured one
        t.setAspect("Approach");
        jmri.util.JUnitAppender.assertErrorMessage("Trying to set \"Approach\" on signal mast \"IF$tsm:basic:one-searchlight($1)\" which has not been configured");

        try {
            t.setAspect("Marblesnarb");
        } catch (IllegalArgumentException ex) {
            jmri.util.JUnitAppender.assertWarnMessage("attempting to set invalid aspect: Marblesnarb on mast: IF$tsm:basic:one-searchlight($1)");
            return;
        }
        
        Assert.fail("should have thrown");
    }

    @Test
    public void testSetAspectResetOthers() {
        Turnout it1 = InstanceManager.turnoutManagerInstance().provideTurnout("IT1");
        Turnout it2 = InstanceManager.turnoutManagerInstance().provideTurnout("IT2");
        TurnoutSignalMast t = new TurnoutSignalMast("IF$tsm:basic:one-searchlight($1)");
        t.resetPreviousStates(true);

        t.setTurnout("Stop", "IT1", Turnout.THROWN);
        t.setTurnout("Clear", "IT2", Turnout.CLOSED);
        
        t.setAspect("Clear");
        Assert.assertEquals("Clear", t.getAspect());
        Assert.assertEquals(Turnout.CLOSED, it1.getCommandedState()); // reset
        Assert.assertEquals(Turnout.CLOSED, it2.getCommandedState());
        
        t.setAspect("Stop");
        Assert.assertEquals("Stop", t.getAspect());
        Assert.assertEquals(Turnout.THROWN, it1.getCommandedState());
        Assert.assertEquals(Turnout.THROWN, it2.getCommandedState()); // reset
        
        // try an unconfigured but valid one
        t.setAspect("Approach");
        jmri.util.JUnitAppender.assertErrorMessage("Trying to set \"Approach\" on signal mast \"IF$tsm:basic:one-searchlight($1)\" which has not been configured");
        
        try {
            t.setAspect("Marblesnarb");
        } catch (IllegalArgumentException ex) {
            jmri.util.JUnitAppender.assertWarnMessage("attempting to set invalid aspect: Marblesnarb on mast: IF$tsm:basic:one-searchlight($1)");
            return;
        }
        
        Assert.fail("should have thrown");
    }

    @Test
    public void testUnLitNoTurnout() {
        Turnout it1 = InstanceManager.turnoutManagerInstance().provideTurnout("IT1");
        Turnout it2 = InstanceManager.turnoutManagerInstance().provideTurnout("IT2");
        TurnoutSignalMast t = new TurnoutSignalMast("IF$tsm:basic:one-searchlight($1)");
        t.setTurnout("Stop", "IT1", Turnout.THROWN);
        t.setTurnout("Clear", "IT2", Turnout.THROWN);
        
        t.setAspect("Clear");
        Assert.assertEquals(true, t.getLit());

        t.setLit(false);
        Assert.assertEquals(false, t.getLit());
        Assert.assertEquals("Clear", t.getAspect());
        Assert.assertEquals(Turnout.CLOSED, it1.getCommandedState());
        Assert.assertEquals(Turnout.CLOSED, it2.getCommandedState());
    }

    @Test
    public void testUnLitWithTurnout() {
        Turnout it1 = InstanceManager.turnoutManagerInstance().provideTurnout("IT1");
        Turnout it2 = InstanceManager.turnoutManagerInstance().provideTurnout("IT2");
        Turnout it3 = InstanceManager.turnoutManagerInstance().provideTurnout("IT3");
        TurnoutSignalMast t = new TurnoutSignalMast("IF$tsm:basic:one-searchlight($1)");
        t.setTurnout("Stop", "IT1", Turnout.THROWN);
        t.setTurnout("Clear", "IT2", Turnout.THROWN);
        t.setTurnout("Unlit", "IT3", Turnout.THROWN);
        t.setUnLitTurnout("IT3",Turnout.THROWN );
        
        t.setAspect("Clear");
        Assert.assertEquals(true, t.getLit());
        Assert.assertEquals(Turnout.UNKNOWN, it1.getCommandedState());
        Assert.assertEquals(Turnout.THROWN, it2.getCommandedState());

        t.setLit(false);
        Assert.assertEquals(false, t.getLit());
        Assert.assertEquals("Clear", t.getAspect());
        Assert.assertEquals(Turnout.UNKNOWN, it1.getCommandedState());  // Unchanged
        Assert.assertEquals(Turnout.THROWN, it2.getCommandedState());  // Unchanged
        Assert.assertEquals(Turnout.THROWN, it3.getCommandedState());
    }

    @BeforeEach
    public void setUp() {
        JUnitUtil.setUp();
        JUnitUtil.resetInstanceManager();
        JUnitUtil.initInternalTurnoutManager();
    }

    @AfterEach
    public void tearDown() {
        JUnitUtil.tearDown();
    }

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

}