/*
 * Copyright 2010 JBoss Inc
 *
 * Licensed 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.drools.verifier.incompatibility;

import org.drools.StatelessSession;
import org.drools.StatelessSessionResult;
import org.drools.base.RuleNameMatchesAgendaFilter;
import org.drools.base.evaluators.Operator;
import org.drools.lang.descr.PackageDescr;
import org.drools.verifier.TestBaseOld;
import org.drools.verifier.VerifierComponentMockFactory;
import org.drools.verifier.components.*;
import org.drools.verifier.report.components.Cause;
import org.junit.Test;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Map;
import java.util.Set;

import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

public class IncompatibilityRestrictionsTest extends IncompatibilityBase {

    @Test
    public void testLiteralRestrictionsIncompatibilityLessOrEqual() throws Exception {
        StatelessSession session = getStatelessSession(this.getClass().getResourceAsStream("Restrictions.drl"));

        session.setAgendaFilter(new RuleNameMatchesAgendaFilter("Incompatible LiteralRestrictions with ranges in pattern possibility, impossible equality less or equal"));

        Collection<Object> data = new ArrayList<Object>();

        Pattern pattern1 = VerifierComponentMockFactory.createPattern1();
        Pattern pattern2 = VerifierComponentMockFactory.createPattern2();

        /*
         * Working pair
         */
        LiteralRestriction r1 = LiteralRestriction.createRestriction(pattern1,
                "10");
        r1.setOperator(Operator.EQUAL);
        r1.setFieldPath("0");
        r1.setOrderNumber(0);

        LiteralRestriction r2 = LiteralRestriction.createRestriction(pattern1,
                "1");
        r2.setOperator(Operator.LESS);
        r2.setFieldPath("0");
        r2.setOrderNumber(2);

        /*
         * Pair that doesn't work.
         */
        LiteralRestriction r3 = LiteralRestriction.createRestriction(pattern2,
                "1");
        r3.setOperator(Operator.GREATER_OR_EQUAL);
        r3.setFieldPath("1");
        r3.setOrderNumber(0);

        LiteralRestriction r4 = LiteralRestriction.createRestriction(pattern2,
                "10");
        r4.setOperator(Operator.EQUAL);
        r4.setFieldPath("1");
        r4.setOrderNumber(1);

        data.add(r1);
        data.add(r2);
        data.add(r3);
        data.add(r4);

        StatelessSessionResult sessionResult = session.executeWithResults(data);

        Map<Cause, Set<Cause>> map = createIncompatibilityMap(VerifierComponentType.RESTRICTION,
                sessionResult.iterateObjects());

        assertTrue((TestBaseOld.causeMapContains(map,
                r1,
                r2) ^ TestBaseOld.causeMapContains(map,
                r2,
                r1)));

        if (!map.isEmpty()) {
            fail("More incompatibilities than was expected.");
        }
    }

    @Test
    public void testLiteralRestrictionsIncompatibilityGreater() throws Exception {
        StatelessSession session = getStatelessSession(this.getClass().getResourceAsStream("Restrictions.drl"));

        session.setAgendaFilter(new RuleNameMatchesAgendaFilter("Incompatible LiteralRestrictions with ranges in pattern possibility, impossible equality greater"));

        Collection<Object> data = new ArrayList<Object>();

        Pattern pattern1 = VerifierComponentMockFactory.createPattern1();
        Pattern pattern2 = VerifierComponentMockFactory.createPattern2();

        /*
         * Working pair
         */
        LiteralRestriction r1 = LiteralRestriction.createRestriction(pattern1,
                "10");
        r1.setOperator(Operator.GREATER);
        r1.setFieldPath("0");
        r1.setOrderNumber(0);

        LiteralRestriction r2 = LiteralRestriction.createRestriction(pattern1,
                "1");
        r2.setOperator(Operator.EQUAL);
        r2.setFieldPath("0");
        r2.setOrderNumber(1);

        /*
         * Pair that doesn't work.
         */
        LiteralRestriction r3 = LiteralRestriction.createRestriction(pattern2,
                "1");
        r3.setOperator(Operator.GREATER_OR_EQUAL);
        r3.setFieldPath("1");
        r3.setOrderNumber(0);

        LiteralRestriction r4 = LiteralRestriction.createRestriction(pattern2,
                "10");
        r4.setOperator(Operator.EQUAL);
        r4.setFieldPath("1");
        r4.setOrderNumber(1);

        data.add(r1);
        data.add(r2);
        data.add(r3);
        data.add(r4);

        StatelessSessionResult sessionResult = session.executeWithResults(data);

        Map<Cause, Set<Cause>> map = createIncompatibilityMap(VerifierComponentType.RESTRICTION,
                sessionResult.iterateObjects());

        assertTrue((TestBaseOld.causeMapContains(map,
                r1,
                r2) ^ TestBaseOld.causeMapContains(map,
                r2,
                r1)));

        if (!map.isEmpty()) {
            fail("More incompatibilities than was expected.");
        }
    }

    @Test
    public void testLiteralRestrictionsIncompatibilityImpossibleRange() throws Exception {
        StatelessSession session = getStatelessSession(this.getClass().getResourceAsStream("Restrictions.drl"));

        session.setAgendaFilter(new RuleNameMatchesAgendaFilter("Incompatible LiteralRestrictions with ranges in pattern possibility, impossible range"));

        Collection<Object> data = new ArrayList<Object>();

        Pattern pattern1 = VerifierComponentMockFactory.createPattern1();
        Pattern pattern2 = VerifierComponentMockFactory.createPattern2();

        /*
         * Working pair
         */
        LiteralRestriction r1 = LiteralRestriction.createRestriction(pattern1,
                "10");
        r1.setOperator(Operator.GREATER);
        r1.setFieldPath("0");
        r1.setOrderNumber(0);

        LiteralRestriction r2 = LiteralRestriction.createRestriction(pattern1,
                "10");
        r2.setOperator(Operator.LESS);
        r2.setFieldPath("0");
        r2.setOrderNumber(1);

        /*
         * Pair that doesn't work.
         */
        LiteralRestriction r3 = LiteralRestriction.createRestriction(pattern2,
                "1");
        r3.setOperator(Operator.GREATER_OR_EQUAL);
        r3.setFieldPath("1");
        r3.setOrderNumber(0);

        LiteralRestriction r4 = LiteralRestriction.createRestriction(pattern2,
                "");
        r4.setOperator(Operator.EQUAL);
        r4.setFieldPath("1");
        r4.setOrderNumber(1);

        data.add(r1);
        data.add(r2);
        data.add(r3);
        data.add(r4);

        StatelessSessionResult sessionResult = session.executeWithResults(data);

        Map<Cause, Set<Cause>> map = createIncompatibilityMap(VerifierComponentType.RESTRICTION,
                sessionResult.iterateObjects());

        assertTrue((TestBaseOld.causeMapContains(map,
                r1,
                r2) ^ TestBaseOld.causeMapContains(map,
                r2,
                r1)));

        if (!map.isEmpty()) {
            fail("More incompatibilities than was expected.");
        }
    }

    @Test
    public void testVariableRestrictionsIncompatibilityImpossibleRange() throws Exception {
        StatelessSession session = getStatelessSession(this.getClass().getResourceAsStream("Restrictions.drl"));

        session.setAgendaFilter(new RuleNameMatchesAgendaFilter("Incoherent VariableRestrictions in pattern possibility, impossible range"));

        Collection<Object> data = new ArrayList<Object>();

        VerifierRule rule = VerifierComponentMockFactory.createRule1();

        ObjectType objectType = new ObjectType(new PackageDescr("testPackage1"));
        objectType.setFullName("org.test.Person");

        Pattern pattern1 = VerifierComponentMockFactory.createPattern1();
        Pattern pattern2 = VerifierComponentMockFactory.createPattern2();

        /*
         * Working pair
         */
        PatternVariable variable1 = new PatternVariable(rule);
        variable1.setParentPath("0");
        variable1.setParentType(VerifierComponentType.FIELD);
        variable1.setOrderNumber(11);

        VariableRestriction r1 = new VariableRestriction(pattern1);
        r1.setOperator(Operator.GREATER);
        r1.setFieldPath("0");
        r1.setVariable(variable1);
        r1.setOrderNumber(0);

        VariableRestriction r2 = new VariableRestriction(pattern1);
        r2.setOperator(Operator.LESS);
        r2.setFieldPath("0");
        r2.setVariable(variable1);
        r2.setOrderNumber(1);

        /*
         * Pair that doesn't work.
         */
        PatternVariable variable2 = new PatternVariable(rule);
        variable2.setParentPath("1");
        variable2.setParentType(VerifierComponentType.FIELD);
        variable2.setOrderNumber(10);

        VariableRestriction r3 = new VariableRestriction(pattern2);
        r3.setOperator(Operator.GREATER_OR_EQUAL);
        r3.setFieldPath("1");
        r3.setVariable(variable2);
        r3.setOrderNumber(0);

        VariableRestriction r4 = new VariableRestriction(pattern2);
        r4.setOperator(Operator.EQUAL);
        r4.setFieldPath("1");
        r4.setVariable(variable2);
        r4.setOrderNumber(1);

        data.add(r1);
        data.add(r2);
        data.add(r3);
        data.add(r4);

        StatelessSessionResult sessionResult = session.executeWithResults(data);

        Map<Cause, Set<Cause>> map = createIncompatibilityMap(VerifierComponentType.RESTRICTION,
                sessionResult.iterateObjects());

        assertTrue((TestBaseOld.causeMapContains(map,
                r1,
                r2) ^ TestBaseOld.causeMapContains(map,
                r2,
                r1)));

        if (!map.isEmpty()) {
            fail("More incompatibilities than was expected.");
        }
    }
}