package org.opendaylight.controller.sal.restconf.impl.test;

import static org.junit.Assert.*;

import java.io.FileNotFoundException;
import java.util.Set;

import org.junit.BeforeClass;
import org.junit.Test;
import org.opendaylight.controller.sal.restconf.impl.ControllerContext;
import org.opendaylight.controller.sal.restconf.impl.InstanceIdWithSchemaNode;
import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
import org.opendaylight.yangtools.yang.model.api.Module;
import org.opendaylight.yangtools.yang.model.api.SchemaContext;

public class ControllerContextTest {

    private static final ControllerContext controllerContext = ControllerContext.getInstance();

    @BeforeClass
    public static void init() throws FileNotFoundException {
        Set<Module> allModules = TestUtils.loadModules(ControllerContextTest.class.getResource("/full-versions/yangs").getPath());
        SchemaContext schemaContext = TestUtils.loadSchemaContext(allModules);
        controllerContext.setSchemas(schemaContext);
    }

    @Test
    public void testToInstanceIdentifierList() throws FileNotFoundException {
        InstanceIdWithSchemaNode instanceIdentifier = controllerContext.toInstanceIdentifier("simple-nodes:userWithoutClass/foo");
        assertEquals(instanceIdentifier.getSchemaNode().getQName().getLocalName(), "userWithoutClass");

        instanceIdentifier = controllerContext.toInstanceIdentifier("simple-nodes:userWithoutClass/foo/full-name");
        assertEquals(instanceIdentifier.getSchemaNode().getQName().getLocalName(), "full-name");

        instanceIdentifier = controllerContext.toInstanceIdentifier("simple-nodes:user/foo/boo");
        assertEquals(instanceIdentifier.getSchemaNode().getQName().getLocalName(), "user");

        instanceIdentifier = controllerContext.toInstanceIdentifier("simple-nodes:user//boo");
        assertEquals(instanceIdentifier.getSchemaNode().getQName().getLocalName(), "user");

        instanceIdentifier = controllerContext.toInstanceIdentifier("simple-nodes:users/user/foo");
        assertEquals(instanceIdentifier.getSchemaNode().getQName().getLocalName(), "user");

        instanceIdentifier = controllerContext.toInstanceIdentifier("simple-nodes:user/null/boo");
        assertNull(instanceIdentifier);

        instanceIdentifier = controllerContext.toInstanceIdentifier("simple-nodes:user/foo");
        assertNull(instanceIdentifier);

    }

    @Test
    public void testToInstanceIdentifierContainer() throws FileNotFoundException {
        InstanceIdWithSchemaNode instanceIdentifier = controllerContext.toInstanceIdentifier("simple-nodes:users");
        assertEquals(instanceIdentifier.getSchemaNode().getQName().getLocalName(), "users");
        assertTrue(instanceIdentifier.getSchemaNode() instanceof ContainerSchemaNode);
        assertEquals(2, ((ContainerSchemaNode)instanceIdentifier.getSchemaNode()).getChildNodes().size());
    }

    @Test
    public void testToInstanceIdentifierChoice() throws FileNotFoundException {
        InstanceIdWithSchemaNode instanceIdentifier = controllerContext.toInstanceIdentifier("simple-nodes:food/beer");
        assertEquals(instanceIdentifier.getSchemaNode().getQName().getLocalName(), "beer");
        
        instanceIdentifier = controllerContext.toInstanceIdentifier("simple-nodes:food/snack");
        assertNull(instanceIdentifier);
        
        instanceIdentifier = controllerContext.toInstanceIdentifier("simple-nodes:food/sports-arena");
        assertNull(instanceIdentifier);
        
        instanceIdentifier = controllerContext.toInstanceIdentifier("simple-nodes:food/snack/sports-arena");
        assertNull(instanceIdentifier);
        
    }

}