lorem/lib/lorem.dart

library lorem;

import "dart:math";

part "words.dart";

class Lorem {
  _randomInt ( int min,  int max ) {
    Random rnd = new Random();
    return rnd.nextInt((max - min) + 1) + min;
  }
  
  /*
   * Creates a random sentence. Example: "Nunc pulvinar sapien et ligula."
   */
  createSentence({int sentenceLength : -1}){
    int wordIndex; 
    String sentence;
    
    if(sentenceLength<0){
      sentenceLength = _randomInt(5, 20);
    }
    
    wordIndex = _randomInt(0, words.length - sentenceLength - 1);
    sentence = words.getRange(wordIndex, wordIndex + sentenceLength).join(" ");
    sentence = sentence[0].toUpperCase() + sentence.substring(1) + ".";
    
    return sentence;    
  }
  
  /*
   * Creates a single paragraph
   */
  createParagraph({int numSentences : -1}){
    List<String> sentences = [];
    
    if(numSentences<0){
      numSentences = _randomInt(3,5);
    }
    for(var i=0; i< numSentences; i++){
      sentences.add(createSentence());
    }
    
    return sentences.getRange(0, sentences.length).join(" ");
  }
  
  /*
   * Creates a text
   */
  createText({int numParagraphs : -1, int numSentences : -1}){
    List<String> paragraphs = [];
    
    if(numParagraphs<0){
      numParagraphs = _randomInt(3,7);
    }
    for(var i=0; i< numParagraphs; i++){
      paragraphs.add(createParagraph(numSentences: numSentences));
    }
    
    return paragraphs.getRange(0, paragraphs.length).join("\n");
  }
  
}