/*
    * 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.mapping;
  
  import java.util.Arrays;
  
  import org.apache.commons.lang3.StringUtils;
  import org.codelibs.core.lang.StringUtil;
  import org.codelibs.fess.dict.DictionaryItem;
  
  public class CharMappingItem extends DictionaryItem {
      private final String[] inputs;
  
      private final String output;
  
      private String[] newInputs;
  
      private String newOutput;
  
      public CharMappingItem(final long id, final String[] inputs, final String output) {
          this.id = id;
          this.inputs = inputs;
          this.output = output == null ? null : output.replace("\n", " ");
          Arrays.sort(inputs);
  
          if (id == 0) {
              // create
              newInputs = inputs;
              newOutput = output;
          }
      }
  
      public String[] getNewInputs() {
          return newInputs;
      }
  
      public void setNewInputs(final String[] newInputs) {
          this.newInputs = newInputs;
      }
  
      public String getNewOutput() {
          return newOutput;
      }
  
      public void setNewOutput(final String newOutput) {
          this.newOutput = newOutput == null ? null : newOutput.replace("\n", " ");
      }
  
      public String[] getInputs() {
          return inputs;
      }
  
      public String getInputsValue() {
          if (inputs == null) {
              return StringUtil.EMPTY;
          }
          return String.join("\n", inputs);
      }
  
      public String getOutput() {
          return output;
      }
  
      public boolean isUpdated() {
          return newInputs != null && newOutput != null;
      }
  
      public boolean isDeleted() {
          return isUpdated() && newInputs.length == 0;
      }
  
      public void sort() {
          if (inputs != null) {
              Arrays.sort(inputs);
          }
          if (newInputs != null) {
              Arrays.sort(newInputs);
          }
      }
  
      @Override
      public int hashCode() {
          final int prime = 31;
          int result = 1;
          result = prime * result + Arrays.hashCode(inputs);
          result = prime * result + (output == null ? 0 : output.hashCode());
         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 CharMappingItem other = (CharMappingItem) obj;
         sort();
         other.sort();
         if (!Arrays.equals(inputs, other.inputs)) {
             return false;
         }
         if (!output.equals(other.getOutput())) {
             return false;
         }
         return true;
     }
 
     @Override
     public String toString() {
         return "MappingItem [id=" + id + ", inputs=" + Arrays.toString(inputs) + ", output=" + output + ", newInputs="
                 + Arrays.toString(newInputs) + ", newOutput=" + newOutput + "]";
     }
 
     public String toLineString() {
         if (isUpdated()) {
             return StringUtils.join(newInputs, ",") + "=>" + newOutput;
         } else {
             return StringUtils.join(inputs, ",") + "=>" + output;
         }
     }
 
 }