/*
 * $Id$
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.commons.ognl.test;

import junit.framework.TestCase;
import org.apache.commons.ognl.ASTChain;
import org.apache.commons.ognl.ASTConst;
import org.apache.commons.ognl.ASTProperty;
import org.apache.commons.ognl.Ognl;
import org.apache.commons.ognl.OgnlContext;
import org.apache.commons.ognl.OgnlRuntime;
import org.apache.commons.ognl.SimpleNode;
import org.apache.commons.ognl.test.objects.BaseGeneric;
import org.apache.commons.ognl.test.objects.GameGeneric;
import org.apache.commons.ognl.test.objects.GameGenericObject;
import org.apache.commons.ognl.test.objects.GenericRoot;
import org.apache.commons.ognl.test.objects.Root;

import java.util.List;
import java.util.Map;

import static org.apache.commons.ognl.test.OgnlTestCase.isEqual;

/**
 * Tests functionality of {@link org.apache.commons.ognl.ASTProperty}.
 */
public class ASTPropertyTest
    extends TestCase
{

    public void test_Get_Indexed_Property_Type()
        throws Exception
    {
        ASTProperty p = new ASTProperty( 0 );
        p.setIndexedAccess( false );
        ASTConst pRef = new ASTConst( 0 );
        pRef.setValue( "nested" );
        pRef.jjtSetParent( p );
        p.jjtAddChild( pRef, 0 );

        Map root = new Root().getMap();

        OgnlContext context = (OgnlContext) Ognl.createDefaultContext( null );
        context.setRoot( root );
        context.setCurrentObject( root );
        context.setCurrentNode( pRef );

        assertEquals( root.getClass(), context.getCurrentType() );
        assertNull(context.getPreviousType());
        assertEquals( root, context.getCurrentObject() );
        assertNull(context.getCurrentAccessor());
        assertNull(context.getPreviousAccessor());

        int type = p.getIndexedPropertyType( context, root );

        assertEquals( OgnlRuntime.INDEXED_PROPERTY_NONE, type );
        assertEquals( root.getClass(), context.getCurrentType() );
        assertNull(context.getPreviousType());
        assertNull(context.getCurrentAccessor());
        assertNull(context.getPreviousAccessor());
    }

    public void test_Get_Value_Body()
        throws Exception
    {
        ASTProperty p = new ASTProperty( 0 );
        p.setIndexedAccess( false );
        ASTConst pRef = new ASTConst( 0 );
        pRef.setValue( "nested" );
        pRef.jjtSetParent( p );
        p.jjtAddChild( pRef, 0 );

        Map root = new Root().getMap();

        OgnlContext context = (OgnlContext) Ognl.createDefaultContext( null );
        context.setRoot( root );
        context.setCurrentObject( root );
        context.setCurrentNode( pRef );

        assertEquals( root.getClass(), context.getCurrentType() );
        assertNull(context.getPreviousType());
        assertEquals( root, context.getCurrentObject() );
        assertNull(context.getCurrentAccessor());
        assertNull(context.getPreviousAccessor());

        Object value = p.getValue( context, root );

        assertEquals( root.get( "nested" ), value );
        assertEquals( root.getClass(), context.getCurrentType() );
        assertNull(context.getPreviousType());
        assertNull(context.getCurrentAccessor());
        assertNull(context.getPreviousAccessor());
    }

    public void test_Get_Source()
        throws Throwable
    {
        ASTProperty p = new ASTProperty( 0 );
        p.setIndexedAccess( false );
        ASTConst pRef = new ASTConst( 0 );
        pRef.setValue( "nested" );
        pRef.jjtSetParent( p );
        p.jjtAddChild( pRef, 0 );

        Map root = new Root().getMap();

        OgnlContext context = (OgnlContext) Ognl.createDefaultContext( null );
        context.setRoot( root );
        context.setCurrentObject( root );
        context.setCurrentNode( pRef );

        assertEquals( ".get(\"nested\")", p.toGetSourceString( context, root ) );
        assertEquals( Object.class, context.getCurrentType() );
        assertEquals( Map.class, context.getCurrentAccessor() );
        assertEquals( root.getClass(), context.getPreviousType() );
        assertNull(context.getPreviousAccessor());

        assertEquals( root.get( "nested" ), context.getCurrentObject() );

        assert Map.class.isAssignableFrom( context.getCurrentAccessor() );

        assertEquals( root.getClass(), context.getPreviousType() );
        assertNull(context.getPreviousAccessor());
    }

    public void test_Set_Source()
        throws Throwable
    {
        ASTProperty p = new ASTProperty( 0 );
        p.setIndexedAccess( false );
        ASTConst pRef = new ASTConst( 0 );
        pRef.setValue( "nested" );
        pRef.jjtSetParent( p );
        p.jjtAddChild( pRef, 0 );

        Map root = new Root().getMap();

        OgnlContext context = (OgnlContext) Ognl.createDefaultContext( null );
        context.setRoot( root );
        context.setCurrentObject( root );
        context.setCurrentNode( pRef );

        assertEquals( ".put(\"nested\", $3)", p.toSetSourceString( context, root ) );
        assertEquals( Object.class, context.getCurrentType() );
        assertEquals( root.get( "nested" ), context.getCurrentObject() );

        assert Map.class.isAssignableFrom( context.getCurrentAccessor() );

        assertEquals( root.getClass(), context.getPreviousType() );
        assertNull(context.getPreviousAccessor());
    }

    public void test_Indexed_Object_Type()
        throws Throwable
    {
        // ASTChain chain = new ASTChain(0);

        ASTProperty listp = new ASTProperty( 0 );
        listp.setIndexedAccess( false );
        // listp.jjtSetParent(chain);

        ASTConst listc = new ASTConst( 0 );
        listc.setValue( "list" );
        listc.jjtSetParent( listp );
        listp.jjtAddChild( listc, 0 );

        // chain.jjtAddChild(listp, 0);

        ASTProperty p = new ASTProperty( 0 );
        p.setIndexedAccess( true );

        ASTProperty pindex = new ASTProperty( 0 );

        ASTConst pRef = new ASTConst( 0 );
        pRef.setValue( "genericIndex" );
        pRef.jjtSetParent( pindex );
        pindex.jjtAddChild( pRef, 0 );

        p.jjtAddChild( pindex, 0 );
        // chain.jjtAddChild(p, 1);

        Root root = new Root();

        OgnlContext context = (OgnlContext) Ognl.createDefaultContext( null );
        context.setRoot( root );
        context.setCurrentObject( root );
        context.setCurrentNode( listp );

        assertEquals( ".getList()", listp.toGetSourceString( context, root ) );
        assertEquals( List.class, context.getCurrentType() );
        assertEquals( Root.class, context.getCurrentAccessor() );
        assertNull(context.getPreviousAccessor());
        assertEquals( root.getClass(), context.getPreviousType() );
        assertEquals( root.getList(), context.getCurrentObject() );

        // re test with chain

        context = (OgnlContext) Ognl.createDefaultContext( null );
        context.setRoot( root );
        context.setCurrentObject( root );

        ASTChain chain = new ASTChain( 0 );
        listp.jjtSetParent( chain );
        chain.jjtAddChild( listp, 0 );

        context.setCurrentNode( chain );

        assertEquals( ".getList()", chain.toGetSourceString( context, root ) );
        assertEquals( List.class, context.getCurrentType() );
        assertEquals( Root.class, context.getCurrentAccessor() );
        assertNull(context.getPreviousAccessor());
        assertEquals( Root.class, context.getPreviousType() );
        assertEquals( root.getList(), context.getCurrentObject() );

        // test with only getIndex

        assertEquals( ".get(org.apache.commons.ognl.OgnlOps#getIntValue(((org.apache.commons.ognl.test.objects.Root)$2)..getGenericIndex().toString()))",
                      p.toGetSourceString( context, root.getList() ) );
        assertEquals( root.getArray(), context.getCurrentObject() );
        assertEquals( Object.class, context.getCurrentType() );
    }

    public void test_Complicated_List()
        throws Exception
    {
        Root root = new Root();
        OgnlContext context = (OgnlContext) Ognl.createDefaultContext( null );

        SimpleNode node =
            (SimpleNode) Ognl.compileExpression( context,
                                                 root,
                                                 "{ new org.apache.commons.ognl.test.objects.MenuItem('Home', 'Main', "
                                                     + "{ new org.apache.commons.ognl.test.objects.MenuItem('Help', 'Help'), "
                                                     + "new org.apache.commons.ognl.test.objects.MenuItem('Contact', 'Contact') }), " // end
                                                                                                                                      // first
                                                                                                                                      // item
                                                     + "new org.apache.commons.ognl.test.objects.MenuItem('UserList', getMessages().getMessage('menu.members')), "
                                                     + "new org.apache.commons.ognl.test.objects.MenuItem('account/BetSlipList', getMessages().getMessage('menu.account'), "
                                                     + "{ new org.apache.commons.ognl.test.objects.MenuItem('account/BetSlipList', 'My Bets'), "
                                                     + "new org.apache.commons.ognl.test.objects.MenuItem('account/TransactionList', 'My Transactions') }), "
                                                     + "new org.apache.commons.ognl.test.objects.MenuItem('About', 'About'), "
                                                     + "new org.apache.commons.ognl.test.objects.MenuItem('admin/Admin', getMessages().getMessage('menu.admin'), "
                                                     + "{ new org.apache.commons.ognl.test.objects.MenuItem('admin/AddEvent', 'Add event'), "
                                                     + "new org.apache.commons.ognl.test.objects.MenuItem('admin/AddResult', 'Add result') })}" );

        assertTrue( List.class.isAssignableFrom( node.getAccessor().get( context, root ).getClass() ) );
    }

    public void test_Set_Chain_Indexed_Property()
        throws Exception
    {
        Root root = new Root();
        OgnlContext context = (OgnlContext) Ognl.createDefaultContext( null );

        context.setRoot( root );
        context.setCurrentObject( root );

        SimpleNode node = (SimpleNode) Ognl.parseExpression( "tab.searchCriteriaSelections[index1][index2]" );
        node.setValue( context, root, Boolean.FALSE );
    }

    public void test_Set_Generic_Property()
        throws Exception
    {
        GenericRoot root = new GenericRoot();
        OgnlContext context = (OgnlContext) Ognl.createDefaultContext( null );

        context.setRoot( root );
        context.setCurrentObject( root );

        SimpleNode node = (SimpleNode) Ognl.parseExpression( "cracker.param" );
        node.setValue( context, root, "0" );

        assertEquals( new Integer( 0 ), root.getCracker().getParam() );

        node.setValue( context, root, "10" );

        assertEquals( new Integer( 10 ), root.getCracker().getParam() );
    }

    public void test_Get_Generic_Property()
        throws Exception
    {
        GenericRoot root = new GenericRoot();
        OgnlContext context = (OgnlContext) Ognl.createDefaultContext( null );

        context.setRoot( root );
        context.setCurrentObject( root );

        SimpleNode node = (SimpleNode) Ognl.parseExpression( "cracker.param" );
        node.setValue( context, root, "0" );

        assertEquals( new Integer( 0 ), node.getValue( context, root ) );

        node.setValue( context, root, "10" );

        assertEquals( new Integer( 10 ), node.getValue( context, root ) );
    }

    public void test_Set_Get_Multiple_Generic_Types_Property()
        throws Exception
    {
        BaseGeneric<GameGenericObject, Long> root = new GameGeneric();
        OgnlContext context = (OgnlContext) Ognl.createDefaultContext( null );

        context.setRoot( root );
        context.setCurrentObject( root );

        SimpleNode node = (SimpleNode) Ognl.parseExpression( "ids" );
        node.setValue( context, root, new String[] { "0", "20", "43" } );

        isEqual( new Long[] { new Long( 0 ), new Long( 20 ), new Long( 43 ) }, root.getIds() );
        isEqual( node.getValue( context, root ), root.getIds() );
    }
}