/*
 * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */
package org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import java.util.Collection;
import java.util.Objects;
import java.util.Set;
import org.opendaylight.yangtools.yang.model.api.DeviateDefinition;
import org.opendaylight.yangtools.yang.model.api.DeviateKind;
import org.opendaylight.yangtools.yang.model.api.MustDefinition;
import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
import org.opendaylight.yangtools.yang.model.api.UniqueConstraint;
import org.opendaylight.yangtools.yang.model.api.stmt.DeviateStatement;
import org.opendaylight.yangtools.yang.model.api.stmt.TypeEffectiveStatement;
import org.opendaylight.yangtools.yang.model.api.stmt.TypeStatement;
import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;

public final class DeviateEffectiveStatementImpl
        extends DeclaredEffectiveStatementBase<DeviateKind, DeviateStatement> implements DeviateDefinition {

    private final DeviateKind deviateType;
    private final Boolean deviatedConfig;
    private final String deviatedDefault;
    private final Boolean deviatedMandatory;
    private final Integer deviatedMaxElements;
    private final Integer deviatedMinElements;
    private final Set<MustDefinition> deviatedMustDefinitions;
    private final TypeDefinition<?> deviatedType;
    private final Collection<UniqueConstraint> deviatedUniqueConstraints;
    private final String deviatedUnits;


    public DeviateEffectiveStatementImpl(final StmtContext<DeviateKind, DeviateStatement, ?> ctx) {
        super(ctx);

        this.deviateType = argument();

        final ConfigEffectiveStatement configStmt = firstEffective(ConfigEffectiveStatement.class);
        this.deviatedConfig = configStmt == null ? null : configStmt.argument();
        final DefaultEffectiveStatementImpl defaultStmt = firstEffective(DefaultEffectiveStatementImpl.class);
        this.deviatedDefault = defaultStmt == null ? null : defaultStmt.argument();
        final MandatoryEffectiveStatement mandatoryStmt = firstEffective(MandatoryEffectiveStatement.class);
        this.deviatedMandatory = mandatoryStmt == null ? null : mandatoryStmt.argument();
        final MaxElementsEffectiveStatementImpl maxElementsStmt = firstEffective(MaxElementsEffectiveStatementImpl.class);
        this.deviatedMaxElements = maxElementsStmt == null ? null : Integer.valueOf(maxElementsStmt.argument());
        final MinElementsEffectiveStatementImpl minElementsStmt = firstEffective(MinElementsEffectiveStatementImpl.class);
        this.deviatedMinElements = minElementsStmt == null ? null : minElementsStmt.argument();
        final TypeEffectiveStatement<TypeStatement> typeStmt = firstEffective(TypeEffectiveStatement.class);
        this.deviatedType = typeStmt == null ? null : typeStmt.getTypeDefinition();
        final UnitsEffectiveStatementImpl unitsStmt = firstEffective(UnitsEffectiveStatementImpl.class);
        this.deviatedUnits = unitsStmt == null ? null : unitsStmt.argument();

        this.deviatedMustDefinitions = ImmutableSet.copyOf(allSubstatementsOfType(MustDefinition.class));
        this.deviatedUniqueConstraints = ImmutableList.copyOf(allSubstatementsOfType(UniqueConstraint.class));
    }

    @Override
    public DeviateKind getDeviateType() {
        return deviateType;
    }

    @Override
    public Boolean getDeviatedConfig() {
        return deviatedConfig;
    }

    @Override
    public String getDeviatedDefault() {
        return deviatedDefault;
    }

    @Override
    public Boolean getDeviatedMandatory() {
        return deviatedMandatory;
    }

    @Override
    public Integer getDeviatedMaxElements() {
        return deviatedMaxElements;
    }

    @Override
    public Integer getDeviatedMinElements() {
        return deviatedMinElements;
    }

    @Override
    public Set<MustDefinition> getDeviatedMusts() {
        return deviatedMustDefinitions;
    }

    @Override
    public TypeDefinition<?> getDeviatedType() {
        return deviatedType;
    }

    @Override
    public Collection<UniqueConstraint> getDeviatedUniques() {
        return deviatedUniqueConstraints;
    }

    @Override
    public String getDeviatedUnits() {
        return deviatedUnits;
    }

    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        DeviateEffectiveStatementImpl other = (DeviateEffectiveStatementImpl) obj;
        return Objects.equals(deviateType, other.deviateType) &&
                Objects.equals(deviatedConfig, other.deviatedConfig) &&
                Objects.equals(deviatedDefault, other.deviatedDefault) &&
                Objects.equals(deviatedMandatory, other.deviatedMandatory) &&
                Objects.equals(deviatedMaxElements, other.deviatedMaxElements) &&
                Objects.equals(deviatedMinElements, other.deviatedMinElements) &&
                Objects.equals(deviatedMustDefinitions, other.deviatedMustDefinitions) &&
                Objects.equals(deviatedType, other.deviatedType) &&
                Objects.equals(deviatedUniqueConstraints, other.deviatedUniqueConstraints) &&
                Objects.equals(deviatedUnits, other.deviatedUnits);
    }

    @Override
    public int hashCode() {
        return Objects.hash(deviateType, deviatedConfig, deviatedDefault, deviatedMandatory, deviatedMaxElements,
                deviatedMinElements, deviatedMustDefinitions, deviatedType, deviatedUniqueConstraints, deviatedUnits);
    }
}