/*
    * Copyright 2012-2017 CodeLibs Project and the Others.
    *
    * 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.codelibs.fess.dict.synonym;
  
  import java.util.Arrays;
  
  import org.apache.commons.lang3.StringUtils;
  import org.codelibs.core.lang.StringUtil;
  import org.codelibs.fess.dict.DictionaryItem;
  
  public class SynonymItem extends DictionaryItem {
      private final String[] inputs;
  
      private final String[] outputs;
  
      private String[] newInputs;
  
      private String[] newOutputs;
  
      public SynonymItem(final long id, final String[] inputs, final String[] outputs) {
          this.id = id;
          this.inputs = inputs;
          this.outputs = outputs;
          Arrays.sort(inputs);
          if (inputs != outputs) {
              Arrays.sort(outputs);
          }
  
          if (id == 0) {
              // create
              newInputs = inputs;
              newOutputs = outputs;
          }
      }
  
      public String[] getNewInputs() {
          return newInputs;
      }
  
      public void setNewInputs(final String[] newInputs) {
          this.newInputs = newInputs;
      }
  
      public String[] getNewOutputs() {
          return newOutputs;
      }
  
      public void setNewOutputs(final String[] newOutputs) {
          this.newOutputs = newOutputs;
      }
  
      public String[] getInputs() {
          return inputs;
      }
  
      public String getInputsValue() {
          if (inputs == null) {
              return StringUtil.EMPTY;
          }
          return String.join("\n", inputs);
      }
  
      public String[] getOutputs() {
          return outputs;
      }
  
      public String getOutputsValue() {
          if (outputs == null) {
              return StringUtil.EMPTY;
          }
          return String.join("\n", outputs);
      }
  
      public boolean isUpdated() {
          return newInputs != null && newOutputs != null;
      }
  
      public boolean isDeleted() {
          return isUpdated() && newInputs.length == 0;
      }
  
      public void sort() {
          if (inputs != null) {
              Arrays.sort(inputs);
          }
          if (outputs != null) {
             Arrays.sort(outputs);
         }
         if (newInputs != null) {
             Arrays.sort(newInputs);
         }
         if (newOutputs != null) {
             Arrays.sort(newOutputs);
         }
     }
 
     @Override
     public int hashCode() {
         final int prime = 31;
         int result = 1;
         result = prime * result + Arrays.hashCode(inputs);
         result = prime * result + Arrays.hashCode(outputs);
         return result;
     }
 
     @Override
     public boolean equals(final Object obj) {
         if (this == obj) {
             return true;
         }
         if (obj == null) {
             return false;
         }
         if (getClass() != obj.getClass()) {
             return false;
         }
         final SynonymItem other = (SynonymItem) obj;
         sort();
         other.sort();
         if (!Arrays.equals(inputs, other.inputs)) {
             return false;
         }
         if (!Arrays.equals(outputs, other.outputs)) {
             return false;
         }
         return true;
     }
 
     @Override
     public String toString() {
         return "SynonymItem [id=" + id + ", inputs=" + Arrays.toString(inputs) + ", outputs=" + Arrays.toString(outputs) + ", newInputs="
                 + Arrays.toString(newInputs) + ", newOutputs=" + Arrays.toString(newOutputs) + "]";
     }
 
     public String toLineString() {
         if (isUpdated()) {
             if (Arrays.equals(newInputs, newOutputs)) {
                 return StringUtils.join(newInputs, ",");
             } else {
                 return StringUtils.join(newInputs, ",") + "=>" + StringUtils.join(newOutputs, ",");
             }
         } else {
             if (Arrays.equals(inputs, outputs)) {
                 return StringUtils.join(inputs, ",");
             } else {
                 return StringUtils.join(inputs, ",") + "=>" + StringUtils.join(outputs, ",");
             }
         }
     }
 
 }