package de.fau.cs.mad.fly.profile;

import java.util.HashMap;
import java.util.Map;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.files.FileHandle;
import com.badlogic.gdx.utils.JsonReader;
import com.badlogic.gdx.utils.JsonValue;

import de.fau.cs.mad.fly.res.PlaneUpgrade;

/**
 * Manages the Upgrades for the Planes
 * 
 * @author Sebastian
 * 
 */
public class PlaneUpgradeManager {
    
    private JsonReader reader = new JsonReader();
    
    private Map<String, PlaneUpgrade> upgrades;
    
    private static PlaneUpgradeManager Instance = new PlaneUpgradeManager();
    
    public static PlaneUpgradeManager getInstance() {
        return Instance;
    }
    
    /**
     * Getter for the UpgradeList
     * 
     * @return A Map containing all Upgrades for the Planes
     */
    public Map<String, PlaneUpgrade> getUpgradeList() {
        if (upgrades == null) {
            
            upgrades = new HashMap<String, PlaneUpgrade>();
            FileHandle dirHandle = Gdx.files.internal("spaceships/upgrades/");
            for (FileHandle file : dirHandle.list()) {
                JsonValue json = reader.parse(file);
                
                JsonValue upgradeJson;
                int size = json.size;
                for (int i = 0; i < size; i++) {
                    upgradeJson = json.get(i);
                    PlaneUpgrade upgrade = new PlaneUpgrade();
                    
                    upgrade.name = upgradeJson.getString("name");
                    upgrade.timesAvailable = upgradeJson.getInt("times");
                    upgrade.type = upgradeJson.getInt("type");
                    upgrade.price = upgradeJson.getInt("price");
                    upgrade.upgradeValues = upgradeJson.get("values").asIntArray();
                    
                    upgrades.put(upgrade.name, upgrade);
                }
            }
        }
        return upgrades;
    }
    
    /**
     * Returns the Upgrade specified by the name
     * 
     * @param name
     *            - The name of the Upgrade
     * @return The Upgrade with the given name
     */
    public PlaneUpgrade getUpgrade(String name) {
        return getUpgradeList().get(name);
    }
}