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/**
 * $Id$
 * 
 * SARL is an general-purpose agent programming language.
 * More details on http://www.sarl.io
 * 
 * Copyright (C) 2014-2024 SARL.io, the Original Authors and Main Authors
 * 
 * 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 io.sarl.api.naming.namespace;

import io.sarl.api.naming.name.SarlName;
import io.sarl.api.naming.parser.INameParser;
import io.sarl.lang.core.annotation.SarlElementType;
import io.sarl.lang.core.annotation.SarlSpecification;
import io.sarl.lang.core.annotation.SyntheticMember;
import java.lang.reflect.Field;
import java.util.Objects;
import org.arakhne.afc.services.AbstractService;
import org.arakhne.afc.services.IService;
import org.eclipse.xtext.xbase.lib.Exceptions;
import org.eclipse.xtext.xbase.lib.Pure;
import org.eclipse.xtext.xbase.lib.XbaseGenerated;

/**
 * Abstract implementation of a service that manages name spaces into the SRE.
 * 
 * @author Stéphane Galland
 * @version api.naming 0.14.0 20241106-161408
 * @mavengroupid io.sarl.sdk
 * @mavenartifactid api.naming
 * @since 0.12
 */
@SarlSpecification("0.14")
@SarlElementType(10)
@XbaseGenerated
@SuppressWarnings("all")
public abstract class AbstractNamespaceService extends AbstractService implements NamespaceService {
  private INameParser nameParser;

  private IFieldAccessValidator fieldAccessValidator;

  @Override
  public Class getReferenceType() {
    return NamespaceService.class;
  }

  @Pure
  @Override
  public INameParser getNameParser() {
    return this.nameParser;
  }

  /**
   * Change the name parser used by this service.
   * 
   * This function could be overloaded by sub-types in order to inject the name parser.
   * 
   * @param parser the name parser, never {@code null}
   * @since 0.11
   */
  public void setNameParser(final INameParser parser) {
    this.nameParser = parser;
  }

  @Pure
  @Override
  public IFieldAccessValidator getFieldAccessValidator() {
    return this.fieldAccessValidator;
  }

  /**
   * Change the field access validator used by this service.
   * 
   * This function could be overloaded by sub-types in order to inject the field access validator.
   * 
   * @param validator the field access validator, never {@code null}
   * @since 0.12
   */
  public void setFieldAccessValidator(final IFieldAccessValidator validator) {
    this.fieldAccessValidator = validator;
  }

  @Override
  @Pure
  public final  T findObject(final SarlName name, final Class type) {
    class $AssertEvaluator$ {
      final boolean $$result;
      $AssertEvaluator$() {
        this.$$result = (type != null);
      }
    }
    assert new $AssertEvaluator$().$$result;
    Object obj = this.findObject(name);
    if (((obj != null) && type.isInstance(obj))) {
      return type.cast(obj);
    }
    return null;
  }

  @Override
  @Pure
  public final Object findObject(final SarlName name) {
    if ((name == null)) {
      return null;
    }
    Object associatedObject = name.getAssociatedObject();
    if ((associatedObject == null)) {
      Object obj = this.findObjectWithoutFragment(name);
      if (((obj != null) && name.hasFragment())) {
        FieldAccess field = this.getDeclaredField(obj, name);
        if ((field != null)) {
          associatedObject = field;
        }
        return field;
      } else {
        try {
          associatedObject = obj;
        } catch (final Throwable _t) {
          if (_t instanceof ClassCastException) {
          } else {
            throw Exceptions.sneakyThrow(_t);
          }
        }
      }
    }
    return associatedObject;
  }

  @Pure
  private FieldAccess getDeclaredField(final Object obj, final SarlName name) {
    Class type = obj.getClass();
    final IFieldAccessValidator fav = this.getFieldAccessValidator();
    if ((fav != null)) {
      while (((type != null) && (!Objects.equals(Object.class, type)))) {
        {
          try {
            Field field = type.getDeclaredField(name.getFragment());
            if ((field != null)) {
              final FieldAccessRight right = fav.getFieldAccessRight(obj, field);
              if (right != null) {
                switch (right) {
                  case WRITE:
                    return new FieldAccess(name, field, obj, true);
                  case READ:
                    return new FieldAccess(name, field, obj, false);
                  default:
                    break;
                }
              } else {
              }
            }
          } catch (final Throwable _t) {
            if (_t instanceof Throwable) {
            } else {
              throw Exceptions.sneakyThrow(_t);
            }
          }
          type = type.getSuperclass();
        }
      }
    }
    return null;
  }

  /**
   * Find an object with the given name, but ignoring the fragment.
   * 
   * @param name the name of the object, never {@code null}.
   * @return the object, or {@code null} if the object was not found.
   */
  protected abstract Object findObjectWithoutFragment(final SarlName name);

  @Override
  @Pure
  @SyntheticMember
  public boolean equals(final Object obj) {
    return super.equals(obj);
  }

  @Override
  @Pure
  @SyntheticMember
  public int hashCode() {
    int result = super.hashCode();
    return result;
  }

  @SyntheticMember
  public AbstractNamespaceService() {
    super();
  }
}