#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <linux/limits.h>

#include <toml/toml.h>
#include <yyjson/yyjson.h>

#include <stellar/utils.h>
#include <stellar/scanner.h>

#include "scanner_toml.h"

static toml_table_t *toml_open(struct logger *logger, const char *toml_path)
{
    FILE *fp=fopen(toml_path, "r");
    if (NULL==fp)
    {
		STELLAR_LOG_FATAL(logger, EXPORTER_MODULE_NAME, "toml_bool_get can't open config file: %s", toml_path);
        return NULL;
    }

    char errbuf[256]={0};
    toml_table_t *root=toml_parse_file(fp, errbuf, sizeof(errbuf));
    fclose(fp);

    return root;
}

static void toml_close(struct toml_table_t *root)
{
    toml_free(root);
}

void toml_string_get1(struct logger *logger, const char *toml_path, const char *table_key, const char *key, char **value, size_t *value_sz)
{
    toml_table_t *root=toml_open(logger, toml_path);
    if(NULL==root)
    {
        return ;
    }

    toml_table_t *table=toml_table_in(root, table_key);
    if(NULL==table)
    {
        STELLAR_LOG_FATAL(logger, EXPORTER_MODULE_NAME, "toml_string_get can't find key: [%s] in config file: %s", table_key, toml_path);
        toml_close(root);
        return ;
    }

    toml_datum_t val=toml_string_in(table, key);
    if(val.ok>0)
    {
        *value=strdup(val.u.s);
        if(value_sz!=NULL)
        {
            strlen(*value);
        }

        free(val.u.s);
    }

    toml_close(root);
}

void kafka_parameter_get(struct logger *logger, const char *toml_path, const char *table_key, struct kafka_parameter *para)
{

    toml_string_get1(logger, toml_path, table_key, "broker_list", &para->broker_list, NULL);
    toml_string_get1(logger, toml_path, table_key, "sasl_username", &para->sasl_username, NULL);
    toml_string_get1(logger, toml_path, table_key, "sasl_passwd", &para->sasl_passwd, NULL);
    toml_string_get1(logger, toml_path, table_key, "compression", &para->compression, NULL);
    toml_string_get1(logger, toml_path, table_key, "require_ack", &para->require_ack, NULL);
    toml_string_get1(logger, toml_path, table_key, "send_queue_max_msg", &para->send_queue_max_msg, NULL);
    toml_string_get1(logger, toml_path, table_key, "refresh_interval_ms", &para->refresh_interval_ms, NULL);

    toml_close(root);
}