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/*
 * 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.rangeChecks.variables;

//list any import classes here.
import org.drools.verifier.components.*;
import org.drools.verifier.data.VerifierReport;
import org.drools.verifier.report.components.Gap;

import java.util.ArrayList;
import java.util.TreeSet;
import java.text.SimpleDateFormat;
import java.util.Locale;

//declare any global variables here
//global VerifierReport result;

/*
// If all ranges are not checked for a field.
//
// Type: Warning
// Example: in "Rule 1" Something( $value :value ) and Foo( bar > $value )
//            and in "Rule 2" Something( $value :value ) and Foo( bar < $value )
//                     then Foo( bar == Something.value ) is missing.
rule "Range check for variables when restriction is VariableRestriction"
    when
        # Find a field that is of type variable.
        $f :Field( fieldType == Field.VARIABLE )
        # Find constraint that matches this field
        # Find variable that is on the right side of this constraint i.e. bar > $foo
        # Find another variable that points to the same field.
        # Find another constraint and check if it continues to check the range for this field.
        (
                $r :VariableRestriction( fieldId == $f.path, evaluator == ">" )
            and
                $v1 :Variable( id == $r.variableId )
            and
                $v2 :Variable( objectId == $v1.objectId, objectType == $v1.objectType, id != $v1.path)
            and
                not VariableRestriction( fieldId == $f.path, ( evaluator == "==" || == "<=" ),
                                                        variableId == $v2.path,
                                                        patternIsNot == $r.patternIsNot )
        ) or (
                $r :VariableRestriction( fieldId == $f.path, evaluator == "<" )
            and
                $v1 :Variable( id == $r.variableId )
            and
                $v2 :Variable( objectId == $v1.objectId, objectType == $v1.objectType, id != $v1.path)
            and
                not VariableRestriction( fieldId == $f.path, ( evaluator == "==" || == ">=" ),
                                                        variableId == $v2.path,
                                                        patternIsNot == $r.patternIsNot )
        ) or (
                $r :VariableRestriction( fieldId == $f.path, evaluator == "<=" )
            and
                $v1 :Variable( id == $r.variableId )
            and
                $v2 :Variable( objectId == $v1.objectId, objectType == $v1.objectType, id != $v1.path)
            and
                not VariableRestriction( fieldId == $f.path, evaluator == ">",
                                                        variableId == $v2.path,
                                                        patternIsNot == $r.patternIsNot )
        ) or (
                $r :VariableRestriction( fieldId == $f.path, evaluator == ">=" )
            and
                $v1 :Variable( id == $r.variableId )
            and
                $v2 :Variable( objectId == $v1.objectId, objectType == $v1.objectType, id != $v1.path)
            and
                not VariableRestriction( fieldId == $f.path, evaluator == "<",
                                                        variableId == $v2.path,
                                                        patternIsNot == $r.patternIsNot )
        )
        $rule :VerifierRule( id == $r.ruleId )
    then
        Gap gap = new Gap();
        gap.setCause($f);
        gap.setRuleName($rule.getName());
        gap.setEvaluator($r.getEvaluator());
        gap.setValue("variable");
        insert( gap );
end 
*/