CardService.java

package fr.lyrgard.hexScape.service;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;

import fr.lyrgard.hexScape.model.card.CardType;
import fr.lyrgard.hexScape.model.card.CardCollection;

public class CardService {

	private static final String CARDS_FOLDER_NAME = "cards";

	private static final String NAME = "name";
	private static final String FIGURES_3D = "3dFigures";
	
	private static final String cardPropertiesFilename = "card.properties";
	
	private static final String[] IMAGE_TYPES = {"jpg", "jpeg", "bmp", "png"};
	
	private static CardService INSTANCE;
	
	public static synchronized CardService getInstance() {
		if (INSTANCE == null) {
			INSTANCE = new CardService();
		}
		return INSTANCE;
	}
	
	private CardCollection cardInventory;
	
	private List<File> getCardFolders() {
		List<File> folders = new ArrayList<File>();
		File commonFolder = new File(AssetService.COMMON_ASSET_FOLDER, CARDS_FOLDER_NAME);
		File gameFolder = new File(new File(AssetService.ASSET_FOLDER, ConfigurationService.getInstance().getGameFolder()), CARDS_FOLDER_NAME);
		folders.add(commonFolder);
		folders.add(gameFolder);
		return folders;
	}
	
	private CardService() {
		loadCardInventory();
	}

	public CardCollection loadCardInventory() {
		cardInventory = new CardCollection();
		
		List<File> baseFolders = getCardFolders();
		
		for (File baseFolder : baseFolders) {	
			if (baseFolder.exists()) {
				for (File folder : baseFolder.listFiles()) {
					if (folder.exists() && folder.isDirectory()) {
						File cardPropertiesFile = new File(folder, cardPropertiesFilename);
						if (cardPropertiesFile.exists() && cardPropertiesFile.isFile() && cardPropertiesFile.canRead()) {
							CardType card = new CardType();
							Properties cardProperties = new Properties();
							InputStream input;
							try {
								input = new FileInputStream(cardPropertiesFile);
								cardProperties.load(input);

								String id =  folder.getName();
								card.setId(id);
								card.setName(cardProperties.getProperty(NAME));
								card.setFolder(folder);
								card.setIconPath(getImagePath(folder, "icon"));
								card.setImagePath(getImagePath(folder, "card"));
								String figures3d = cardProperties.getProperty(FIGURES_3D);
								String[] figures = figures3d.split(",");
								for (String figureName : figures) {
									figureName = figureName.trim();
									card.getFigureNames().add(figureName);
								}
								cardInventory.addCard(id, card, null);
							} catch (IOException e) {
								e.printStackTrace();
							}

						}
					}
				}
			}
		}
		return cardInventory;
	}
	
	private String getImagePath(File folder, String name) {
		for (String extension : IMAGE_TYPES) {
			File file = new File(folder, name + "." + extension);
			if (file.exists() && file.isFile() && file.canRead()) {
				return file.getAbsolutePath();
			}
		}
		return null;
	}

	public CardType getCardByPieceId(String pieceId) {
		return cardInventory.getCardsByPieceId().get(pieceId);
	}

	public CardCollection getCardInventory() {
		return cardInventory;
	}

}