/*

 * Copyright (c) 2023 Huawei Device Co., Ltd.

 * 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.

 */

#include "sql_util.h"



namespace OHOS {

namespace HiviewDFX {

namespace SqlUtil {

std::string GenerateCreateSql(const std::string& table,

    const std::vector<std::pair<std::string, std::string>>& fields)

{

    std::string sql;

    sql += "CREATE TABLE IF NOT EXISTS ";

    sql += table;

    sql += "(";

    sql += "id INTEGER PRIMARY KEY AUTOINCREMENT";  // default field: id

    for (auto field : fields) {

        sql += ", ";

        sql += field.first;

        sql += " ";

        sql += field.second;

    }

    sql += ")";

    return sql;

}



std::string GenerateExistSql(const std::string& table)

{

    std::string sql = "SELECT name FROM sqlite_sequence WHERE name = '" + table + "'";

    return sql;

}



std::string GenerateDropSql(const std::string& table)

{

    std::string sql;

    sql += "DROP TABLE IF EXISTS ";

    sql += table;

    return sql;

}

} // namespace SqlUtil

} // namespace HiviewDFX

} // namespace OHOS