random_pick_data.dart

import 'dart:async';
import 'dart:convert';
import 'package:flutter/services.dart';

import 'random_pick_word.dart';
import 'random_pick_image.dart';

class RandomPickData {
  RandomPickData();

  List _words;

  init(String lang, int wordsCount, int imagesPerWordCount) async {
    _words = new List(wordsCount);
    await getWordsAndImages(lang, wordsCount, imagesPerWordCount);
  }

  Future<void> getWordsAndImages(String lang, int wordsCount, int imagesPerWordCount) async {
    RandomPickWord randomPickWord;
    RandomPickImage randomPickImage;

    List pickedWords;

    randomPickWord = RandomPickWord();
    await randomPickWord.init(lang, wordsCount);

    if (randomPickWord.words != null) {
      pickedWords = randomPickWord.words;

      for (var i = 0; i < pickedWords.length; i++) {
          Map word = pickedWords[i];

          randomPickImage = RandomPickImage();
          await randomPickImage.init(word['key'], imagesPerWordCount);
          if (randomPickImage.images != null) {
            pickedWords[i]['images'] = randomPickImage.images;
          }
      }
    }

    _words = pickedWords;
  }

  List get words => _words;
}