/**
 * created by jiang, 16/3/13
 * Copyright (c) 2016, jyuesong@gmail.com All Rights Reserved.
 * *                #                                                   #
 * #                       _oo0oo_                     #
 * #                      o8888888o                    #
 * #                      88" . "88                    #
 * #                      (| -_- |)                    #
 * #                      0\  =  /0                    #
 * #                    ___/`---'\___                  #
 * #                  .' \\|     |# '.                 #
 * #                 / \\|||  :  |||# \                #
 * #                / _||||| -:- |||||- \              #
 * #               |   | \\\  -  #/ |   |              #
 * #               | \_|  ''\---/''  |_/ |             #
 * #               \  .-\__  '-'  ___/-. /             #
 * #             ___'. .'  /--.--\  `. .'___           #
 * #          ."" '<  `.___\_<|>_/___.' >' "".         #
 * #         | | :  `- \`.;`\ _ /`;.`/ - ` : | |       #
 * #         \  \ `_.   \_ __\ /__ _/   .-` /  /       #
 * #     =====`-.____`.___ \_____/___.-`___.-'=====    #
 * #                       `=---='                     #
 * #     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~   #
 * #                                                   #
 * #               佛祖保佑         永无BUG              #
 * #                                                   #
 */

package com.jiang.android.zhihu_topanswer.db;

import android.content.Context;

/**
 * Created by jiang on 16/3/13.
 */
public class DbCore {
    private static final String DEFAULT_DB_NAME = "collection.db";
    private static DaoMaster daoMaster;
    private static DaoSession daoSession;

    private static Context mContext;
    private static String DB_NAME;

    public static void init(Context context) {
        init(context, DEFAULT_DB_NAME);
    }

    public static void init(Context context, String dbName) {
        if (context == null) {
            throw new IllegalArgumentException("context can't be null");
        }
        mContext = context.getApplicationContext();
        DB_NAME = dbName;
    }

    public static DaoMaster getDaoMaster() {
        if (daoMaster == null) {
            DaoMaster.OpenHelper helper = new DaoMaster.DevOpenHelper(mContext, DB_NAME, null);
            daoMaster = new DaoMaster(helper.getWritableDatabase());
        }
        return daoMaster;
    }

    public static DaoSession getDaoSession() {
        if (daoSession == null) {
            if (daoMaster == null) {
                daoMaster = getDaoMaster();
            }
            daoSession = daoMaster.newSession();
        }
        return daoSession;
    }

}
