/* Copyright (c) 2008 Sven Jacobs



   Permission is hereby granted, free of charge, to any person obtaining a copy

   of this software and associated documentation files (the "Software"), to deal

   in the Software without restriction, including without limitation the rights

   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

   copies of the Software, and to permit persons to whom the Software is

   furnished to do so, subject to the following conditions:



   The above copyright notice and this permission notice shall be included in

   all copies or substantial portions of the Software.



   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

   THE SOFTWARE. 

 */

package org.exoplatform.forum.extras.injection.utils;

/**
 * Simple lorem ipsum text generator.
 * <p>
 * Suitable for creating sample data for test cases and performance tests.
 * </p>
 * 
 * @author Sven Jacobs
 * @version 1.0
 */

public class LoremIpsum4J {

  public static final String LOREM_IPSUM = "Lorem ipsum dolor sit amet, consetetur sadipscing elitr, "
                                             + "sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. "
                                             + "At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus "
                                             + "est Lorem ipsum dolor sit amet.";

  private String[] loremIpsumWords;
  private char[] loremIpsumCharacters;

  public LoremIpsum4J() {
    this.loremIpsumWords = LOREM_IPSUM.split("\\s");
    this.loremIpsumCharacters = LOREM_IPSUM.toCharArray();

  }

  /**
   * Returns one sentence (50 words) of the lorem ipsum text.
   * 
   * @return 50 words of lorem ipsum text
   */

  public String getWords() {

    return getWords(50);

  }

  /**
   * Returns words from the lorem ipsum text.
   * 
   * @param amount Amount of words
   * @return Lorem ipsum text
   */

  public String getWords(int amount) {

    return getWords(amount, 0);

  }/**
   * Returns characters from the lorem ipsum text.
   * 
   * @param amount Amount of characters
   * @return Lorem ipsum text
   */

  public String getCharacters(int amount) {
    return getCharacters(amount, 0);

  }
  
  

  /**
   * Returns words from the lorem ipsum text.
   * 
   * @param amount Amount of words
   * @param startIndex Start index of word to begin with (must be >= 0 and < 50)
   * @return Lorem ipsum text
   * @throws IndexOutOfBoundsException If startIndex is < 0 or > 49
   */

  public String getWords(int amount, int startIndex) {

    if (startIndex < 0 || startIndex > 99) {

      throw new IndexOutOfBoundsException("startIndex must be >= 0 and < 50");

    }

    int word = startIndex;

    StringBuilder lorem = new StringBuilder();

    for (int i = 0; i < amount; i++) {

      if (word == 100) {

        word = 0;

      }

      lorem.append(loremIpsumWords[word]);

      if (i < amount - 1) {

        lorem.append(' ');

      }

      word++;

    }

    return lorem.toString();

  }
  
  /**
   * Returns words from the lorem ipsum text.
   * 
   * @param amount Amount of words
   * @param startIndex Start index of word to begin with (must be >= 0 and < 50)
   * @return Lorem ipsum text
   * @throws IndexOutOfBoundsException If startIndex is < 0 or > 49
   */

  public String getCharacters(int amount, int startIndex) {

    if (startIndex < 0 || startIndex > loremIpsumCharacters.length) {

      throw new IndexOutOfBoundsException("startIndex must be >= 0 and < 50");

    }

    int character = startIndex;

    StringBuilder lorem = new StringBuilder();

    for (int i = 0; i < amount; i++) {

      if (character == loremIpsumCharacters.length) {

        character = 0;

      }

      lorem.append(loremIpsumWords[character]);

      if (i < amount - 1) {

        lorem.append(' ');

      }

      character++;

    }

    return lorem.toString();

  }

  /**
   * Returns two paragraphs of lorem ipsum.
   * 
   * @return Lorem ipsum paragraphs
   */

  public String getParagraphs() {

    return getParagraphs(2);

  }

  /**
   * Returns paragraphs of lorem ipsum.
   * 
   * @param amount Amount of paragraphs
   * @return Lorem ipsum paragraphs
   */

  public String getParagraphs(int amount) {

    StringBuilder lorem = new StringBuilder();

    for (int i = 0; i < amount; i++) {

      lorem.append(LOREM_IPSUM);

      if (i < amount - 1) {

        lorem.append("\n\n");

      }

    }

    return lorem.toString();

  }

}
