#ifndef NTUX_DRIVER_IMPL_H
#define NTUX_DRIVER_IMPL_H

#include <psxabi/sys_abitypes.h>
#include <psxabi/sys_fcntl.h>
#include <psxscl/psxscl.h>

#include <stdint.h>
#include <stdio.h>

#include <ntux/ntux.h>
#include "ntux_dprintf_impl.h"
#include "argv/argv.h"

#define NTUX_OPTV_ELEMENTS 64

extern   const struct argv_option   ntux_default_options[];
extern   const struct argv_option   ntux_spawn_options[];
extern   const struct argv_option   ntux_strace_options[];
extern   const struct argv_option   ntux_chmod_options[];
extern   const struct argv_option   ntux_aceit_options[];
extern   const struct argv_option   ntux_fspath_options[];
extern   const struct argv_option   ntux_bridge_options[];

/* bridge functionality */
#define NTUX_EXE_SUFFIX             ".exe"
#define NTUX_EXE_SUFFIX_LEN         (4)
#define NTUX_MAX_PATH_UTF8          (32768 / 2 * 3)
#define NTUX_MAX_PATH               NTUX_MAX_PATH_UTF8


enum app_tags {
	TAG_HELP,
	TAG_VERSION,
	TAG_CMD,
	TAG_LOADER,
	TAG_LOGFILE,
	TAG_VERBOSE,
	TAG_SILENT,
	TAG_RECURSIVE,
	TAG_STRMODE,
	TAG_REFMODE,
	TAG_CHANGES,
	TAG_OWNER,
	TAG_GROUP,
	TAG_ROOTED,
	TAG_ROOTLESS,
	TAG_DUMP,
	TAG_SYNTAX,
	TAG_RPATH,
	TAG_APATH,
	TAG_NPATH,
	TAG_DPATH,
	TAG_INTERP,
	TAG_SCRIPT,
	TAG_OPTARG,
	TAG_CWDPATH,
	TAG_ABSPATH,
};

struct ntux_driver_ctx_impl {
	struct ntux_common_ctx      cctx;
	struct ntux_driver_ctx      ctx;
	struct ntux_fd_ctx          fdctx;
	struct __psx_context        xctx;
	const struct ntux_unit_ctx *euctx;
	const char *                eunit;
	char *                      interp;
	struct ntux_error_info **   errinfp;
	struct ntux_error_info **   erricap;
	struct ntux_error_info *    erriptr[64];
	struct ntux_error_info      erribuf[64];
	char                        errsbuf[28];
	int                         errcode;
};


static inline struct ntux_driver_ctx_impl * ntux_get_driver_ictx(const struct ntux_driver_ctx * dctx)
{
	uintptr_t addr;

	if (dctx) {
		addr = (uintptr_t)dctx - offsetof(struct ntux_driver_ctx_impl,ctx);
		return (struct ntux_driver_ctx_impl *)addr;
	}

	return 0;
}

static inline void ntux_driver_set_ectx(
	const struct ntux_driver_ctx * dctx,
	const struct ntux_unit_ctx *   uctx,
	const char *                   unit)
{
	struct ntux_driver_ctx_impl *  ictx;

	ictx        = ntux_get_driver_ictx(dctx);
	ictx->euctx = uctx;
	ictx->eunit = unit;
}

static inline int ntux_driver_fdin(const struct ntux_driver_ctx * dctx)
{
	struct ntux_fd_ctx fdctx;
	ntux_get_driver_fdctx(dctx,&fdctx);
	return fdctx.fdin;
}

static inline int ntux_driver_fdout(const struct ntux_driver_ctx * dctx)
{
	struct ntux_fd_ctx fdctx;
	ntux_get_driver_fdctx(dctx,&fdctx);
	return fdctx.fdout;
}

static inline int ntux_driver_fderr(const struct ntux_driver_ctx * dctx)
{
	struct ntux_fd_ctx fdctx;
	ntux_get_driver_fdctx(dctx,&fdctx);
	return fdctx.fderr;
}

static inline int ntux_driver_fdlog(const struct ntux_driver_ctx * dctx)
{
	struct ntux_fd_ctx fdctx;
	ntux_get_driver_fdctx(dctx,&fdctx);
	return fdctx.fdlog;
}

static inline int ntux_driver_fdcwd(const struct ntux_driver_ctx * dctx)
{
	struct ntux_fd_ctx fdctx;
	ntux_get_driver_fdctx(dctx,&fdctx);
	return fdctx.fdcwd;
}

static inline int ntux_driver_fddst(const struct ntux_driver_ctx * dctx)
{
	struct ntux_fd_ctx fdctx;
	ntux_get_driver_fdctx(dctx,&fdctx);
	return fdctx.fddst;
}

#endif