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/*
* SPDX-FileCopyrightText: 2023 The Refinery Authors <https://refinery.tools/>
*
* SPDX-License-Identifier: EPL-2.0
*/
package tools.refinery.store.reasoning.scope;
import tools.refinery.logic.dnf.AnyQuery;
import tools.refinery.logic.dnf.Query;
import tools.refinery.logic.dnf.RelationalQuery;
import tools.refinery.logic.term.Variable;
import tools.refinery.logic.term.uppercardinality.UpperCardinality;
import tools.refinery.logic.term.uppercardinality.UpperCardinalityTerms;
import tools.refinery.store.dse.transition.DesignSpaceExplorationBuilder;
import tools.refinery.store.dse.transition.objectives.Criteria;
import tools.refinery.store.dse.transition.objectives.Objectives;
import tools.refinery.store.model.ModelStoreBuilder;
import tools.refinery.store.reasoning.ReasoningBuilder;
import tools.refinery.store.reasoning.literal.CountCandidateLowerBoundLiteral;
import tools.refinery.store.reasoning.literal.CountUpperBoundLiteral;
import tools.refinery.store.reasoning.representation.PartialRelation;
import java.util.Collection;
import java.util.List;
import static tools.refinery.logic.literal.Literals.check;
import static tools.refinery.logic.term.int_.IntTerms.*;
import static tools.refinery.store.reasoning.literal.PartialLiterals.may;
import static tools.refinery.store.reasoning.translator.multiobject.MultiObjectTranslator.MULTI_VIEW;
class LowerTypeScopePropagator extends TypeScopePropagator {
private final int lowerBound;
private LowerTypeScopePropagator(BoundScopePropagator adapter, int lowerBound, RelationalQuery allQuery,
RelationalQuery multiQuery) {
super(adapter, allQuery, multiQuery);
this.lowerBound = lowerBound;
}
@Override
protected void doUpdateBounds() {
constraint.setLb((lowerBound - getSingleCount()));
}
static class Factory extends TypeScopePropagator.Factory {
private final PartialRelation type;
private final int lowerBound;
private final RelationalQuery allMay;
private final RelationalQuery multiMay;
public Factory(PartialRelation type, int lowerBound) {
this.type = type;
this.lowerBound = lowerBound;
allMay = Query.of(type.name() + "#may", (builder, instance) -> builder.clause(
may(type.call(instance))
));
multiMay = Query.of(type.name() + "#multiMay", (builder, instance) -> builder.clause(
may(type.call(instance)),
MULTI_VIEW.call(instance)
));
}
@Override
public TypeScopePropagator createPropagator(BoundScopePropagator adapter) {
return new LowerTypeScopePropagator(adapter, lowerBound, allMay, multiMay);
}
@Override
protected Collection<AnyQuery> getQueries() {
return List.of(allMay, multiMay);
}
@Override
public void configure(ModelStoreBuilder storeBuilder) {
super.configure(storeBuilder);
var requiredObjects = Query.of(type.name() + "#required", Integer.class, (builder, output) -> builder
.clause(Integer.class, candidateLowerBound -> List.of(
new CountCandidateLowerBoundLiteral(candidateLowerBound, type, List.of(Variable.of())),
output.assign(sub(constant(lowerBound), candidateLowerBound)),
check(greater(output, constant(0)))
)));
var tooFewObjects = Query.of(type.name() + "#tooFew", builder -> builder
.clause(UpperCardinality.class, upperBound -> List.of(
new CountUpperBoundLiteral(upperBound, type, List.of(Variable.of())),
check(UpperCardinalityTerms.less(upperBound,
UpperCardinalityTerms.constant(UpperCardinality.of(lowerBound))))
)));
storeBuilder.getAdapter(ReasoningBuilder.class).objective(Objectives.value(requiredObjects));
storeBuilder.tryGetAdapter(DesignSpaceExplorationBuilder.class).ifPresent(dseBuilder -> {
dseBuilder.accept(Criteria.whenNoMatch(requiredObjects));
dseBuilder.exclude(Criteria.whenHasMatch(tooFewObjects));
});
}
}
}
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