package com.android.settings.eos;

import android.content.Context;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ResolveInfo;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.util.DisplayMetrics;

public class AppConfigPackage extends AppPackage {
    public static final int TABLET_MODE = Configuration.SCREENLAYOUT_SIZE_XLARGE
            & ~Configuration.SCREENLAYOUT_SIZE_MASK;
    public static final int HYBRID_MODE = Configuration.SCREENLAYOUT_SIZE_LARGE
            & ~Configuration.SCREENLAYOUT_SIZE_MASK;
    public static final int PHONE_MODE = Configuration.SCREENLAYOUT_SIZE_NORMAL
            & ~Configuration.SCREENLAYOUT_SIZE_MASK;
    public static final int TINY_MODE = Configuration.SCREENLAYOUT_SIZE_SMALL
            & ~Configuration.SCREENLAYOUT_SIZE_MASK;

    Context mContext;
    Resources mAppRes;
    Configuration mStockConfig;
    Configuration mCustomConfig;
    boolean mDisabled = false;

    // needed for updating package configuration
    // i think. So we can make it static and set from calling class
    static DisplayMetrics mMetrics;

    AppConfigPackage(ResolveInfo ri, PackageManager pm) {
        super(ri, pm);
        try {
            mAppRes = pm.getResourcesForActivity(getComponent());
            mStockConfig = mAppRes.getConfiguration();
        } catch (NameNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            mStockConfig = null;
            mCustomConfig = null;
            mAppRes = null;
            mDisabled = true;
        }
        if (mStockConfig != null) {
            mCustomConfig = mStockConfig;
        }
    }
    
    public void setStockConfig() {
        mCustomConfig = mStockConfig;
        mAppRes.updateConfiguration(mCustomConfig, getDisplayMetrics());
    }

    public boolean setCustomConfig(int mode) {
        if (mCustomConfig == null)
            return false;
        if (mode != TABLET_MODE
                || mode != HYBRID_MODE
                || mode != PHONE_MODE
                || mode != TINY_MODE) {
            return false;
        }
        mCustomConfig.screenLayout = mode;
        mAppRes.updateConfiguration(mCustomConfig, getDisplayMetrics());
        return true;
    }

    // just in case something goes wrong in constructor
    public boolean isFeatureDisabled() {
        return mDisabled;
    }

    public static DisplayMetrics getDisplayMetrics() {
        return mMetrics;
    }
}