/*
    * #%L
    * wcm.io
    * %%
    * Copyright (C) 2025 wcm.io
    * %%
    * 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.
   * #L%
   */
  package io.wcm.tooling.commons.packmgr.unpack;
  
  import java.io.InputStream;
  import java.math.BigDecimal;
  import java.util.Calendar;
  import java.util.List;
  
  import javax.jcr.Binary;
  import javax.jcr.PropertyType;
  import javax.jcr.RepositoryException;
  import javax.jcr.Value;
  
  import org.apache.jackrabbit.spi.Name;
  import org.apache.jackrabbit.vault.util.DocViewProperty2;
  
  final class DocViewUtil {
  
    private DocViewUtil() {
      // static methods only
    }
  
    /**
     * Parses a multi-value property value in DocView format.
     * @param value Multi-valued property
     * @return Property values
     */
    static List<String> parseValues(String value) {
      try {
        DocViewProperty2 prop = DocViewProperty2.parse(DUMMY_NAME, value);
        return prop.getStringValues();
      }
      catch (RepositoryException ex) {
        throw new IllegalArgumentException("Unable to parse values: " + value, ex);
      }
    }
  
    /**
     * Formats multiple values on DocView as a single string.
     * @param values Values
     * @return DocView values string
     */
    static String formatValues(List<String> values) {
      return formatValues(values, PropertyType.STRING);
    }
  
    /**
     * Formats multiple values on DocView as a single string.
     * @param values Values
     * @param propertyType Property type from {@link PropertyType}
     * @return DocView values string
     */
    static String formatValues(List<String> values, int propertyType) {
      Value[] valueObjects = values.stream()
        .map(value -> new MockValue(value, propertyType))
        .toArray(size -> new Value[size]);
      try {
        return DocViewProperty2.fromValues(DUMMY_NAME, valueObjects, propertyType, true, false, false).formatValue();
      }
      catch (RepositoryException ex) {
        throw new IllegalArgumentException("Unable to format values: " + valueObjects, ex);
      }
    }
  
  
    private static final Name DUMMY_NAME = new Name() {
  
      private static final long serialVersionUID = 1L;
  
      @Override
      public String getLocalName() {
        return "dummy";
      }
  
      @Override
      public String getNamespaceURI() {
        return NS_DEFAULT_URI;
      }
  
      @Override
      public int compareTo(Object o) {
       throw new UnsupportedOperationException();
     }
   };
 
   private static class MockValue implements Value {
 
     private final String value;
     private final int type;
 
     MockValue(String value, int type) {
       this.value = value;
       this.type = type;
     }
 
     @Override
     public String getString() {
       return value;
     }
 
     @Override
     public int getType() {
       return type;
     }
 
 
     // -- unsupported methods --
 
     @Override
     public InputStream getStream() {
       throw new UnsupportedOperationException();
     }
 
     @Override
     public Binary getBinary() {
       throw new UnsupportedOperationException();
     }
 
     @Override
     public long getLong() {
       throw new UnsupportedOperationException();
     }
 
     @Override
     public double getDouble() {
       throw new UnsupportedOperationException();
     }
 
     @Override
     public BigDecimal getDecimal() {
       throw new UnsupportedOperationException();
     }
 
     @Override
     public Calendar getDate() {
       throw new UnsupportedOperationException();
     }
 
     @Override
     public boolean getBoolean() {
       throw new UnsupportedOperationException();
     }
 
   }
 
 }