package com.gh.gamecenter.db;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;

import androidx.collection.ArrayMap;

import com.gh.gamecenter.db.info.GameTrendsInfo;
import com.gh.gamecenter.db.info.SearchHistoryInfo;
import com.j256.ormlite.android.apptools.OrmLiteSqliteOpenHelper;
import com.j256.ormlite.dao.Dao;
import com.j256.ormlite.support.ConnectionSource;
import com.j256.ormlite.table.TableUtils;
import com.lightgame.utils.Utils;

import java.sql.SQLException;

public class DatabaseHelper extends OrmLiteSqliteOpenHelper {

    private static final String DATABASE_NAME = "gh_assist.db";
    private static final int DATABASE_VERSION = 13;

    private static DatabaseHelper instance;
    private ArrayMap<String, Dao> daos = new ArrayMap<>();

    private DatabaseHelper(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
    }

    /**
     * 单例获取该Helper
     *
     * @param context
     * @return
     */
    public static synchronized DatabaseHelper getHelper(Context context) {
        context = context.getApplicationContext();
        if (instance == null) {
            synchronized (DatabaseHelper.class) {
                if (instance == null) {
                    instance = new DatabaseHelper(context);
                }
            }
        }
        return instance;
    }

    @Override
    public void onCreate(SQLiteDatabase database, ConnectionSource connectionSource) {
        try {
            Utils.log("DatabaseHelper onCreate");
            TableUtils.createTable(connectionSource, SearchHistoryInfo.class);
            TableUtils.createTable(connectionSource, GameTrendsInfo.class);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onUpgrade(SQLiteDatabase database, ConnectionSource connectionSource, int oldVersion, int newVersion) {
        try {
            Utils.log("DatabaseHelper onUpgrade");
            TableUtils.dropTable(connectionSource, SearchHistoryInfo.class, true);
            TableUtils.dropTable(connectionSource, GameTrendsInfo.class, true);
            onCreate(database, connectionSource);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    public synchronized Dao getDao(Class clazz) throws SQLException {
        Dao dao = null;
        String className = clazz.getSimpleName();

        if (daos.containsKey(className)) {
            dao = daos.get(className);
        }
        if (dao == null) {
            dao = super.getDao(clazz);
            daos.put(className, dao);
        }
        return dao;
    }

    /**
     * 释放资源
     */
    @Override
    public void close() {
        super.close();
        for (String key : daos.keySet()) {
            Dao dao = daos.get(key);
            dao = null;
        }
    }
}