/*
    * Copyright (C) 2021-2023 Dipl.-Inform. Kai Hofmann. All rights reserved!
    */
   package de.powerstat.validation.values;
   
   
   import java.util.Objects;
   
   import de.powerstat.validation.interfaces.IValueObject;
  
  
  /**
   * Screen size.
   *
   * Not DSGVO relevant.
   *
   * TODO min, max
   */
  public final class ScreenSize implements Comparable<ScreenSize>, IValueObject
   {
    /* *
     * Cache for singletons.
     */
    // private static final Map<NTuple3<Integer, Integer, String>, ScreenSize> CACHE = new WeakHashMap<>();
  
    /**
     * Screen width (1-8192).
     */
    private final int width;
  
    /**
     * Screen height (1-8192).
     */
    private final int height;
  
    /**
     * Screen size name.
     */
    private final String name;
  
  
    /**
     * Constructor.
     *
     * @param width Screen width in pixel (1-8192)
     * @param height Screen height in pixel (1-8192)
     * @param name Screen size name
     */
    private ScreenSize(final int width, final int height, final String name)
     {
      super();
      if ((width < 1) || (width > 8192.0))
       {
        throw new IndexOutOfBoundsException("Width out of range (1-8192)"); //$NON-NLS-1$
       }
      if ((height < 1) || (height > 8192.0))
       {
        throw new IndexOutOfBoundsException("Height out of range (1-8192)"); //$NON-NLS-1$
       }
      Objects.requireNonNull(name);
      this.width = width;
      this.height = height;
      this.name = name;
     }
  
  
    /**
     * ScreenSize factory.
     *
     * @param width Screen width in pixel (1-8192)
     * @param height Screen height in pixel (1-8192)
     * @param name Screen size name
     * @return ScreenSize
     */
    public static ScreenSize of(final int width, final int height, final String name)
     {
      /*
      if ((width < 1) || (width > 8192.0))
       {
        throw new IndexOutOfBoundsException("Width out of range (1-8192)"); //$NON-NLS-1$
       }
      if ((height < 1) || (height > 8192.0))
       {
        throw new IndexOutOfBoundsException("Height out of range (1-8192)"); //$NON-NLS-1$
       }
      final NTuple3<Integer, Integer, String> tuple = NTuple3.of(width, height, name);
      synchronized (ScreenSize.class)
       {
        ScreenSize obj = ScreenSize.CACHE.get(tuple);
        if (obj != null)
         {
          return obj;
         }
        obj = new ScreenSize(width, height, name);
        ScreenSize.CACHE.put(tuple, obj);
        return obj;
       }
      */
      return new ScreenSize(width, height, name);
    }
 
 
   /**
    * ScreenSize factory.
    *
    * @param value width (1-8192) x height (1-8192)
    * @return ScreenSize
    */
   public static ScreenSize of(final String value)
    {
     final String[] values = value.split("x");
     if (values.length != 2)
      {
       throw new IllegalArgumentException("value not of expected format");
      }
     return of(Integer.parseInt(values[0]), Integer.parseInt(values[1]), "");
    }
 
 
   /**
    * Get screen width.
    *
    * @return Screen width in pixel
    */
   public int getWidth()
    {
     return this.width;
    }
 
 
   /**
    * Get screen height.
    *
    * @return Screen height in pixel
    */
   public int getHeight()
    {
     return this.height;
    }
 
 
   /**
    * Returns the value of this ScreenSize as a string.
    *
    * @return The text value represented by this object after conversion to type string format 320x200.
    */
   @Override
   public String stringValue()
    {
     return String.valueOf(this.width) + 'x' + this.height;
    }
 
 
   /**
    * Get screen size name.
    *
    * @return Screen size name
    */
   public String getName()
    {
     return this.name;
    }
 
 
   /**
    * Calculate hash code.
    *
    * @return Hash
    * @see java.lang.Object#hashCode()
    */
   @Override
   public int hashCode()
    {
     int result = Integer.hashCode(this.width);
     result = (31 * result) + Integer.hashCode(this.height);
     return (31 * result) + this.name.hashCode();
    }
 
 
   /**
    * Is equal with another object.
    *
    * @param obj Object
    * @return true when equal, false otherwise
    * @see java.lang.Object#equals(java.lang.Object)
    */
   @Override
   public boolean equals(final Object obj)
    {
     if (this == obj)
      {
       return true;
      }
     if (!(obj instanceof ScreenSize))
      {
       return false;
      }
     final ScreenSize other = (ScreenSize)obj;
     return (this.width == other.width) && (this.height == other.height) && this.name.equals(other.name);
    }
 
 
   /**
    * Returns the string representation of this ScreenSize.
    *
    * The exact details of this representation are unspecified and subject to change, but the following may be regarded as typical:
    *
    * "ScreenSize[width=320, height=200, name=QVGA]"
    *
    * @return String representation of this ScreenSize
    * @see java.lang.Object#toString()
    */
   @Override
   public String toString()
    {
     final var builder = new StringBuilder(47);
     builder.append("ScreenSize[width=").append(this.width).append(", height=").append(this.height).append(", name=").append(this.name).append(']'); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
     return builder.toString();
    }
 
 
   /**
    * Compare with another object.
    *
    * @param obj Object to compare with
    * @return 0: equal; 1: greater; -1: smaller
    * @see java.lang.Comparable#compareTo(java.lang.Object)
    */
   @Override
   public int compareTo(final ScreenSize obj)
    {
     Objects.requireNonNull(obj, "obj"); //$NON-NLS-1$
     int result = Integer.compare(this.width, obj.width);
     if (result == 0)
      {
       result = Integer.compare(this.height, obj.height);
       if (result == 0)
        {
         result = this.name.compareTo(obj.name);
        }
      }
     return result;
    }
 
  }