#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, SCANNER_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_bool_get(struct logger *logger, const char *toml_path, const char *table_key, const char *key, bool *value)
{
    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, SCANNER_MODULE_NAME, "toml_bool_get can't find key: [%s] in config file: %s", table_key, toml_path);
        toml_close(root);
        return ;
    }

	toml_datum_t val=toml_bool_in(table, key);
	if(val.ok>0)
	{
		*value=val.u.b;
	}
	else
	{
		*value=false;
	}

    toml_close(root);
}

void toml_int_get(struct logger *logger, const char *toml_path, const char *table_key, const char *key, int *value)
{
    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, SCANNER_MODULE_NAME, "toml_int_get can't find key: [%s] in config file: %s", table_key, toml_path);
        toml_close(root);
        return ;
    }

	toml_datum_t val=toml_int_in(table, key);
	if(val.ok>0)
	{
		*value=val.u.i;
	}
	else
	{
		*value=0;
	}

    toml_close(root);
}

void toml_string_get(struct logger *logger, const char *toml_path, const char *table_key, const char *key, char *value, size_t value_len)
{
    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, SCANNER_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)
	{
		strncpy(value, val.u.s, MIN(value_len-1, strlen(val.u.s)));
		free(val.u.s);
	}
	else
	{
		strncpy(value, "", value_len);
	}

    toml_close(root);
}