game_pick_word.dart

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

import '../provider/data.dart';
import '../utils/random_pick_word.dart';
import '../utils/get_image_from_word.dart';

class GamePickWordPage extends StatelessWidget {
  int _count = 4;

  Future<void> startGame(BuildContext context, Data myProvider) async {
    await pickWord(context, myProvider);
    await pickImage(context, myProvider, myProvider.word);
  }

  Future<void> pickWord(BuildContext context, Data myProvider) async {
    List words;
    RandomPickWord randomPickWord;
    int attempts = 0;
    do {
      randomPickWord = RandomPickWord();
      await randomPickWord.init(_count);
      if (randomPickWord.words != null) {
        words = randomPickWord.words;
        break;
      }
      attempts++;
    } while (attempts < 3);

    if ((words != null) && (words.length == _count)) {
      myProvider.updateWord = words.take(1).toList()[0];
      myProvider.updateOtherWords = words.skip(1).toList();
    }
  }

  Future<void> pickImage(BuildContext context, Data myProvider, String word) async {
    List images;
    RandomPickImage randomPickImage;
    int attempts = 0;
    do {
      randomPickImage = RandomPickImage();
      await randomPickImage.init(word, _count);
      if (randomPickImage.images != null) {
        images = randomPickImage.images;
        break;
      }
      attempts++;
    } while (attempts < 3);


    if ((images != null) && (images.length == _count)) {
      myProvider.updateImages = images;
    }
  }

  Container _buildImageContainer(String image, Color color) {
    String imageAsset = 'assets/placeholder.png';
    if (image != null) {
        imageAsset = 'assets/images/'+image;
    }

    return Container(
      padding: EdgeInsets.all(5),
      child: FlatButton(
        color: Colors.teal,
        child: Image(image: AssetImage(imageAsset)),
      ),
    );
  }

  Column _buildImageItemsBlock(List images) {
    Color color = Colors.black;

    if ((images == null) || (images.length != _count)) {
      images = List(_count);
    }

    return Column(
      mainAxisSize: MainAxisSize.min,
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        Row(
          mainAxisSize: MainAxisSize.min,
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            _buildImageContainer(images[0], color),
            _buildImageContainer(images[1], color),
          ],
        ),
        Row(
          mainAxisSize: MainAxisSize.min,
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            _buildImageContainer(images[2], color),
            _buildImageContainer(images[3], color),
          ],
        )
      ],
    );
  }

  Container _buildTextContainer(String word, Color color) {
    return Container(
      child: RaisedButton(
        color: Colors.green,
        padding: EdgeInsets.all(15),
        child: Text(
          word != null ? word : '',
          style: TextStyle(
            fontSize: 20,
            fontWeight: FontWeight.w400,
            color: color,
          ),
        ),
        onPressed: () { print("button text: " + word); },
      ),
    );
  }

  Column _buildTextItemsBlock(String word, List otherWords) {
    Color color = Colors.white;

    List words = [
      word,
      otherWords.length > 0 ? otherWords[0] : null,
      otherWords.length > 1 ? otherWords[1] : null,
      otherWords.length > 2 ? otherWords[2] : null,
    ];

    words.shuffle();

    return Column(
      mainAxisSize: MainAxisSize.min,
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        Row(
          mainAxisSize: MainAxisSize.min,
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            _buildTextContainer(words[0], color),
            SizedBox(width: 10),
            _buildTextContainer(words[1], color),
          ],
        ),
        SizedBox(height: 10),
        Row(
          mainAxisSize: MainAxisSize.min,
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            _buildTextContainer(words[2], color),
            SizedBox(width: 10),
            _buildTextContainer(words[3], color),
          ],
        )
      ],
    );
  }

  @override
  Widget build(BuildContext context) {
    Data _myProvider = Provider.of<Data>(context);

    return Scaffold(
      appBar: AppBar(
        elevation: 0,
      ),
      backgroundColor: Colors.blue,
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.spaceEvenly,
          crossAxisAlignment: CrossAxisAlignment.center,
          mainAxisSize: MainAxisSize.max,
          children: <Widget>[
            _buildImageItemsBlock(_myProvider.images),
            SizedBox(height: 10),
            FlatButton(
              onPressed: () => startGame(context, _myProvider),
              color: Colors.orange,
              padding: EdgeInsets.all(10.0),
              child: Row(
                children: <Widget>[
                  Icon(Icons.shuffle),
                  Text("Nouveau mot")
                ],
              ),
            ),
            SizedBox(height: 10),
            _buildTextItemsBlock(_myProvider.word, _myProvider.otherWords),
          ],
        ),
      ),
    );
  }
}