#include "postgres.h"
#include "utils/builtins.h"
#include "commands/defrem.h"
#include "utils/elog.h"
#include "utils/rel.h"
#include "utils/relcache.h"
#include "utils/syscache.h"
#include "utils/typcache.h"
#include "distributed/deparser.h"
#include "distributed/pg_version_constants.h"


/**
 * Convert a DefElem option to a SQL statement and append it to the given StringInfo buffer.
 *
 * @param buf The StringInfo buffer to append the SQL statement to.
 * @param option The DefElem option to convert to a SQL statement.
 * @param opt_formats The option format specification to use for the conversion.
 * @param num_opt_formats The number of option formats in the opt_formats array.
 */
void
optionToStatement(StringInfo buf, DefElem *option, const struct
				  option_format *opt_formats, int
				  opt_formats_len)
{
	const char *name = option->defname;
	int i;

	for (i = 0; i < opt_formats_len; i++)
	{
		if (strcmp(name, opt_formats[i].name) == 0)
		{
			if (opt_formats[i].type == OPTION_FORMAT_STRING)
			{
				char *value = defGetString(option);
				appendStringInfo(buf, opt_formats[i].format, quote_identifier(value));
			}
			else if (opt_formats[i].type == OPTION_FORMAT_INTEGER)
			{
				int32 value = defGetInt32(option);
				appendStringInfo(buf, opt_formats[i].format, value);
			}
			else if (opt_formats[i].type == OPTION_FORMAT_BOOLEAN)
			{
				bool value = defGetBoolean(option);
				appendStringInfo(buf, opt_formats[i].format, value ? "true" : "false");
			}
#if PG_VERSION_NUM >= PG_VERSION_15
			else if (opt_formats[i].type == OPTION_FORMAT_OBJECT_ID)
			{
				Oid value = defGetObjectId(option);
				appendStringInfo(buf, opt_formats[i].format, value);
			}
#endif
			else if (opt_formats[i].type == OPTION_FORMAT_LITERAL_CSTR)
			{
				char *value = defGetString(option);
				appendStringInfo(buf, opt_formats[i].format, quote_literal_cstr(value));
			}
			else
			{
				elog(ERROR, "unrecognized option type: %d", opt_formats[i].type);
			}
			break;
		}
	}
}