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/*
 * Copyright (c) 2018 by Oliver Boehm
 *
 * 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.
 *
 * (c)reated 12.01.2018 by oboehm ([email protected])
 */
package gdv.xport.util;

import gdv.xport.feld.Feld;
import gdv.xport.satz.Satz;
import net.sf.oval.ConstraintViolation;
import net.sf.oval.constraint.AssertValidCheck;
import net.sf.oval.context.ClassContext;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

/**
 * Die Klasse SimpleConstraintViolation vereinfacht den Umgang mit
 * {@link ConstraintViolation}.
 *
 * @author oboehm
 * @since 3.1 (12.01.2018)
 */
public final class SimpleConstraintViolation extends ConstraintViolation {
    
    private static final Logger LOG = LogManager.getLogger(SimpleConstraintViolation.class);
    private final List violations = new ArrayList<>();

    public SimpleConstraintViolation(Feld validatedObject, Throwable cause) {
        this(cause.getLocalizedMessage(), validatedObject);
        LOG.debug("{} is not valid:", validatedObject, cause);
    }

    public SimpleConstraintViolation(String message, Feld validatedObject) {
        this(message, validatedObject, validatedObject.getInhalt());
    }
    
    public SimpleConstraintViolation(String message, Object validatedObject, Object invalidValue) {
        super(new AssertValidCheck(), message, validatedObject, invalidValue, new ClassContext(validatedObject.getClass()));
    }

    public SimpleConstraintViolation(Satz satz, List violations) {
        this(String.format("%s: %d Problem(e)", satz.toShortString(), violations.size()), satz, violations);
        this.violations.addAll(violations);
    }

    /**
     * Hierueber koennen weitere Validierungsfehler abgeholt werden, die
     * noch an dieser {@link ConstraintViolation} mit dranhaengen.
     *
     * @return Liste mit Violations (die wiederum weitere enthalten koennen)
     * @since 5.4
     */
    public List getViolations() {
        return Collections.unmodifiableList(violations);
    }

    @Override
    public String toString() {
        return getValidatedObject() + " -> " + getMessage();
    }

    public static String toString(List violations) {
        StringBuilder buf = new StringBuilder();
        for (ConstraintViolation cv : violations) {
            if (cv.getInvalidValue() instanceof List) {
                buf.append(cv.getValidatedObject()).append(":\n");
                List cvViolations = (List) cv.getInvalidValue();
                for (Object cvViolation : cvViolations) {
                    buf.append("\t- ").append(cvViolation);
                }
            } else {
                buf.append(cv);
            }
            buf.append('\n');
        }
        return buf.toString();
    }

}