/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*  Fluent Bit

 *  ==========

 *  Copyright (C) 2015-2024 The Fluent Bit 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.

 */

#include <fluent-bit/flb_processor_plugin.h>

#include <fluent-bit/flb_mem.h>

#include "sql.h"

#include "parser/sql_parser.h"

struct sql_ctx *sql_config_create(struct flb_processor_instance *ins,

                                  struct flb_config *config)

{

    int ret;

    struct sql_ctx *ctx;

    ctx = flb_calloc(1, sizeof(struct sql_ctx));

    if (!ctx) {

        flb_errno();

        return NULL;

    }

    ctx->ins = ins;

    /* Initialize the config map */

    ret = flb_processor_instance_config_map_set(ins, ctx);

    if (ret == -1) {

        flb_free(ctx);

        return NULL;

    }

    if (!ctx->query_str) {

        flb_plg_error(ctx->ins, "no SQL query provided");

        flb_free(ctx);

        return NULL;

    }

    /* create query context */

    ctx->query = sql_parser_query_create(ctx->query_str);

    if (!ctx->query) {

        flb_plg_error(ctx->ins, "failed to parse SQL query: %s", ctx->query_str);

        flb_free(ctx);

        return NULL;

    }

    return ctx;

}

void sql_config_destroy(struct sql_ctx *ctx)

{

    if (ctx->query) {

        sql_parser_query_destroy(ctx->query);

    }

    flb_free(ctx);

}