/* -*- 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_output_plugin.h>

#include <fluent-bit/flb_utils.h>

#include <fluent-bit/flb_sds.h>

#include <fluent-bit/flb_pack.h>

#include "udp.h"

#include "udp_conf.h"

struct flb_out_udp *flb_udp_conf_create(struct flb_output_instance *ins,

                                        struct flb_config *config)

{

    int ret;

    const char *tmp;

    struct flb_out_udp *ctx = NULL;

    /* Allocate plugin context */

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

    if (!ctx) {

        flb_errno();

        return NULL;

    }

    ctx->ins = ins;

    ret = flb_output_config_map_set(ins, (void *) ctx);

    if (ret == -1) {

        flb_free(ctx);

        return NULL;

    }

    /* Set default network configuration if not set */

    flb_output_net_default("127.0.0.1", 5170, ins);

    /* raw message key mode */

    if (ctx->raw_message_key) {

        ctx->ra_raw_message_key = flb_ra_create(ctx->raw_message_key, FLB_TRUE);

        if (!ctx->ra_raw_message_key) {

            flb_plg_error(ctx->ins, "could not create record accessor for raw_message_key");

            flb_free(ctx);

            return NULL;

        }

    }

    /* Output format */

    ctx->out_format = FLB_PACK_JSON_FORMAT_NONE;

    tmp = flb_output_get_property("format", ins);

    if (tmp) {

        ret = flb_pack_to_json_format_type(tmp);

        if (ret == -1) {

            flb_plg_error(ctx->ins, "unrecognized 'format' option '%s'. "

                          "Using 'msgpack'", tmp);

        }

        else {

            ctx->out_format = ret;

        }

    }

    /* Date key */

    ctx->date_key = ctx->json_date_key;

    tmp = flb_output_get_property("json_date_key", ins);

    if (tmp) {

        /* Just check if we have to disable it */

        if (flb_utils_bool(tmp) == FLB_FALSE) {

            ctx->date_key = NULL;

        }

    }

    /* Date format for JSON output */

    ctx->json_date_format = FLB_PACK_JSON_DATE_DOUBLE;

    tmp = flb_output_get_property("json_date_format", ins);

    if (tmp) {

        ret = flb_pack_to_json_date_type(tmp);

        if (ret == -1) {

            flb_plg_error(ctx->ins, "unrecognized 'json_date_format' option '%s'. "

                          "Using 'double'", tmp);

        }

        else {

            ctx->json_date_format = ret;

        }

    }

    ctx->host = ins->host.name;

    ctx->port = ins->host.port;

    ctx->endpoint_descriptor = flb_net_udp_connect(ins->host.name,

                                                   ins->host.port,

                                                   ins->net_setup.source_address);

    if (ctx->endpoint_descriptor < 0) {

        flb_udp_conf_destroy(ctx);

        flb_plg_error(ctx->ins, "Error creating upstream socket");

        ctx = NULL;

    }

    return ctx;

}

void flb_udp_conf_destroy(struct flb_out_udp *ctx)

{

    if (!ctx) {

        return;

    }

    if (ctx->ra_raw_message_key) {

        flb_ra_destroy(ctx->ra_raw_message_key);

    }

    if (ctx->endpoint_descriptor >= 0) {

        flb_socket_close(ctx->endpoint_descriptor);

    }

    flb_free(ctx);

    ctx = NULL;

}