package org.mage.plugins.card.properties;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Properties;

import org.mage.plugins.card.constants.Constants;

public class SettingsManager {

    private static SettingsManager settingsManager = null;

    public static SettingsManager getIntance() {
        if (settingsManager == null) {
            synchronized (SettingsManager.class) {
                if (settingsManager == null) settingsManager = new SettingsManager();
            }
        }
        return settingsManager;
    }

    private SettingsManager() {
        loadImageProperties();
    }

    public void reloadImageProperties() {
        loadImageProperties();
    }

    private void loadImageProperties() {
        imageUrlProperties = new Properties();
        try {
            InputStream is = SettingsManager.class.getClassLoader().getResourceAsStream(Constants.IO.IMAGE_PROPERTIES_FILE);
            if (is == null)
                throw new RuntimeException("Couldn't load " + Constants.IO.IMAGE_PROPERTIES_FILE);
            imageUrlProperties.load(is);
        } catch (IOException ioe) {
            ioe.printStackTrace();
        }
    }

    public String getSetNameReplacement(String setName) {
        String result = setName;
        if (imageUrlProperties != null) {
            result = imageUrlProperties.getProperty(setName, setName);
        }
        return result;    
    }

    public HashSet<String> getIgnoreUrls() {
        HashSet<String> ignoreUrls = new HashSet<String>();
        if (imageUrlProperties != null) {
            String result = imageUrlProperties.getProperty("ignore.urls");
            if (result != null) {
                String[] ignore = result.split(",");
                ignoreUrls.addAll(Arrays.asList(ignore));
            }
        }
        return ignoreUrls;
    }

    public ArrayList<String> getTokenLookupOrder() {
        ArrayList<String> order = new ArrayList<String>();
        if (imageUrlProperties != null) {
            String result = imageUrlProperties.getProperty("token.lookup.order");
            if (result != null) {
                String[] sets = result.split(",");
                order.addAll(Arrays.asList(sets));
            }
        }
        return order;
    }

    private Properties imageUrlProperties;
}
