use types::c;

export type conn = opaque;

export @symbol("PQconnectdb") fn connectdb(conninfo: const *c::char) *conn;
export @symbol("PQfinish") fn finish(conn: *conn) void;

export @symbol("PQstatus") fn status(conn: *conn) ConnStatusType;

export type ConnStatusType = enum int {
	OK,
	BAD,

	STARTED,
	MADE,
	AWAITING_RESPONSE,

	AUTH_OK,

	SETENV,
	SSL_STARTUP,
	NEEDED,
	CHECK_WRITABLE,
	CONSUME,
	GSS_STARTUP,
	CHECK_TARGET,

	CHECK_STANDBY,
	ALLOCATED,
};

use types::c;

export type result = opaque;

export @symbol("PQclear") fn clear(res: *result) void;

export @symbol("PQnfields") fn nfields(res: *result) int;
export @symbol("PQfname") fn fname(res: *result, field_num: int) *c::char;
export @symbol("PQntuples") fn ntuples(res: *result) int;
export @symbol("PQgetvalue") fn getvalue(res: *result, tup_num: int, field_num: int) *c::char;
export @symbol("PQgetlength") fn getlength(res: *result, tup_num: int, field_num: int) int;

export type ExecStatusType = enum int {
	EMPTY_QUERY = 0,
	COMMAND_OK,

	TUPLES_OK,

	COPY_OUT,
	COPY_IN,
	BAD_RESPONSE,

	NONFATAL_ERROR,
	FATAL_ERROR,
	COPY_BOTH,
	SINGLE_TUPLE,
	PIPELINE_SYNC,
	PIPELINE_ABORTED,

	TUPLES_CHUNK,
};

export @symbol("PQresultStatus") fn resultStatus(res: *result) ExecStatusType;

export @symbol("PQstatus") fn status(conn: *conn) ConnStatusType;

export type ConnStatusType = enum int {
	OK,
	BAD,

	STARTED,
	MADE,
	AWAITING_RESPONSE,

	AUTH_OK,

	SETENV,
	SSL_STARTUP,
	NEEDED,
	CHECK_WRITABLE,
	CONSUME,
	GSS_STARTUP,
	CHECK_TARGET,

	CHECK_STANDBY,
	ALLOCATED,
};