/*
 * Copyright © 2016-2018 European Support Limited
 *
 * 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.openecomp.sdc.versioning.impl;

import java.util.Collection;
import java.util.function.Predicate;
import java.util.stream.Collectors;
import org.openecomp.sdc.common.errors.CoreException;
import org.openecomp.sdc.common.errors.ErrorCategory;
import org.openecomp.sdc.common.errors.ErrorCode;
import org.openecomp.sdc.versioning.ItemManager;
import org.openecomp.sdc.versioning.dao.ItemDao;
import org.openecomp.sdc.versioning.dao.types.VersionStatus;
import org.openecomp.sdc.versioning.types.Item;
import org.openecomp.sdc.versioning.types.ItemStatus;

public class ItemManagerImpl implements ItemManager {

  private ItemDao itemDao;


  public ItemManagerImpl(ItemDao itemDao) {
    this.itemDao = itemDao;

  }

  @Override
  public Collection<Item> list(Predicate<Item> predicate) {
    return itemDao.list().stream().filter(predicate).collect(Collectors.toList());
  }

  @Override
  public Item get(String itemId) {
    Item item = new Item();
    item.setId(itemId);
    return itemDao.get(item);
  }

  @Override
  public Item create(Item item) {
    return itemDao.create(item);
  }

  @Override
  public void updateVersionStatus(String itemId, VersionStatus addedVersionStatus,
                                  VersionStatus removedVersionStatus) {
    Item item = get(itemId);
    if (item == null) {
      return;
    }

    item.addVersionStatus(addedVersionStatus);
    if (removedVersionStatus != null) {
      item.removeVersionStatus(removedVersionStatus);
    }
    itemDao.update(item);
  }

  @Override
  public void delete(Item item) {
    itemDao.delete(item);
  }

  @Override
  public void updateName(String itemId, String name) {
    Item item = get(itemId);
    if (item == null) {
      return;
    }

    item.setName(name);
    itemDao.update(item);
  }

  @Override
  public void archive(Item item) {

    if (item.getStatus() == ItemStatus.ARCHIVED) {
      throw new CoreException(new ErrorCode.ErrorCodeBuilder()
          .withCategory(ErrorCategory.APPLICATION)
          .withMessage(String.format("Archive item failed, item %s is already Archived", item.getId()))
          .build());
    }

    item.setStatus(ItemStatus.ARCHIVED);
    itemDao.update(item);
  }

  @Override
  public void restore(Item item) {

      if (item.getStatus() == ItemStatus.ACTIVE) {
          throw new CoreException(new ErrorCode.ErrorCodeBuilder()
                  .withCategory(ErrorCategory.APPLICATION)
                  .withMessage(String.format("Restore item failed, item %s is already Active", item.getId()))
                  .build());
      }

      item.setStatus(ItemStatus.ACTIVE);
      itemDao.update(item);
    }

  @Override
  public void update(Item item) {
    itemDao.update(item);
  }
}