/*
 * Copyright (C) 2009 ZXing authors
 *
 * 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.google.zxing.client.android.history;

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

/**
 * @author Sean Owen
 */
final class DBHelper extends SQLiteOpenHelper {

  private static final int DB_VERSION = 4;
  private static final String DB_NAME = "barcode_scanner_history.db";
  static final String TABLE_NAME = "history";
  static final String ID_COL = "id";
  static final String TEXT_COL = "text";
  static final String FORMAT_COL = "format";
  static final String DISPLAY_COL = "display";
  static final String TIMESTAMP_COL = "timestamp";

  DBHelper(Context context) {
    super(context, DB_NAME, null, DB_VERSION);
  }

  @Override
  public void onCreate(SQLiteDatabase sqLiteDatabase) {
    sqLiteDatabase.execSQL(
            "CREATE TABLE " + TABLE_NAME + " (" +
            ID_COL + " INTEGER PRIMARY KEY, " +
            TEXT_COL + " TEXT, " +
            FORMAT_COL + " TEXT, " +
            DISPLAY_COL + " TEXT, " +
            TIMESTAMP_COL + " INTEGER" +
            ");");
  }

  @Override
  public void onUpgrade(SQLiteDatabase sqLiteDatabase, int oldVersion, int newVersion) {
    sqLiteDatabase.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME);
    onCreate(sqLiteDatabase);
  }

}
