/*
 * Copyright 2017 Hippo Seven
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.hippo.database;

/*
 * Created by Hippo on 2017/9/4.
 */

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

import com.hippo.util.SqlUtils;

class MSQLiteOpenHelper extends SQLiteOpenHelper {

    private final int version;
    private final MSQLiteBuilder builder;

    public MSQLiteOpenHelper(Context context, String name, int version, MSQLiteBuilder builder) {
        super(context, name, null, version);
        this.version = version;
        this.builder = builder;
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
        onUpgrade(db, 0, version);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        for (String command : builder.getStatements(oldVersion, newVersion)) {
            db.execSQL(command);
        }
    }

    @Override
    public void onDowngrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        SqlUtils.dropAllTable(db);
        onCreate(db);
    }
}