#ifndef SLIBTOOL_H
#define SLIBTOOL_H

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

#include "slibtool_api.h"

#ifdef __cplusplus
extern "C" {
#endif

/* pre-alpha */
#ifndef SLBT_APP
#ifndef SLBT_PRE_ALPHA
#error  libslibtool: pre-alpha: ABI is not final!
#error  to use the library, please pass -DSLBT_PRE_ALPHA to the compiler.
#endif
#endif

/* status codes */
#define SLBT_OK				0x00
#define SLBT_USAGE			0x01
#define SLBT_ERROR			0x02

/* driver flags */
#define SLBT_DRIVER_XFLAG(x)		((uint64_t)(x) << 32)

#define SLBT_DRIVER_VERBOSITY_NONE	0x0000
#define SLBT_DRIVER_VERBOSITY_ERRORS	0x0001
#define SLBT_DRIVER_VERBOSITY_STATUS	0x0002
#define SLBT_DRIVER_VERBOSITY_USAGE	0x0004
#define SLBT_DRIVER_CLONE_VECTOR	0x0008

#define SLBT_DRIVER_VERSION		0x0010
#define SLBT_DRIVER_DRY_RUN		0x0020
#define SLBT_DRIVER_CONFIG		0x0040
#define SLBT_DRIVER_DEBUG		0x0080
#define SLBT_DRIVER_FEATURES		0x0100
#define SLBT_DRIVER_DEPS		0x0200
#define SLBT_DRIVER_SILENT		0x0400
#define SLBT_DRIVER_VERBOSE		0x0800
#define SLBT_DRIVER_PRO_PIC		0x1000
#define SLBT_DRIVER_ANTI_PIC		0x2000
#define SLBT_DRIVER_SHARED		0x4000
#define SLBT_DRIVER_STATIC		0x8000

#define SLBT_DRIVER_HEURISTICS		0x010000
#define SLBT_DRIVER_STRICT		0x020000
#define SLBT_DRIVER_NO_UNDEFINED	0x040000
#define SLBT_DRIVER_MODULE		0x080000
#define SLBT_DRIVER_AVOID_VERSION	0x100000
#define SLBT_DRIVER_IMAGE_ELF		0x200000
#define SLBT_DRIVER_IMAGE_PE		0x400000
#define SLBT_DRIVER_IMAGE_MACHO		0x800000

#define SLBT_DRIVER_ALL_STATIC		0x01000000
#define SLBT_DRIVER_DISABLE_STATIC	0x02000000
#define SLBT_DRIVER_DISABLE_SHARED	0x04000000
#define SLBT_DRIVER_LEGABITS		0x08000000

#define SLBT_DRIVER_ANNOTATE_ALWAYS	0x10000000
#define SLBT_DRIVER_ANNOTATE_NEVER	0x20000000
#define SLBT_DRIVER_ANNOTATE_FULL	0x40000000

#define SLBT_DRIVER_IMPLIB_IDATA	SLBT_DRIVER_XFLAG(0x0001)
#define SLBT_DRIVER_IMPLIB_DSOMETA	SLBT_DRIVER_XFLAG(0x0002)
#define SLBT_DRIVER_EXPORT_DYNAMIC	SLBT_DRIVER_XFLAG(0x0010)
#define SLBT_DRIVER_STATIC_LIBTOOL_LIBS	SLBT_DRIVER_XFLAG(0x0100)
#define SLBT_DRIVER_OUTPUT_MACHINE	SLBT_DRIVER_XFLAG(0x1000)

/* error flags */
#define SLBT_ERROR_TOP_LEVEL		0x0001
#define SLBT_ERROR_NESTED		0x0002
#define SLBT_ERROR_CHILD		0x0004
#define SLBT_ERROR_CUSTOM		0x0008

enum slbt_custom_error {
	SLBT_ERR_FLOW_ERROR,
	SLBT_ERR_FLEE_ERROR,
	SLBT_ERR_ARCHIVE_IMPORT,
	SLBT_ERR_HOST_INIT,
	SLBT_ERR_INSTALL_FAIL,
	SLBT_ERR_INSTALL_FLOW,
	SLBT_ERR_INSTALL_REV,
	SLBT_ERR_LDRPATH_INIT,
	SLBT_ERR_LINK_FLOW,
	SLBT_ERR_LINK_FREQ,
	SLBT_ERR_BAD_DATA,
	SLBT_ERR_UNINSTALL_FAIL,
	SLBT_ERR_LCONF_OPEN,
	SLBT_ERR_LCONF_MAP,
	SLBT_ERR_LCONF_PARSE,
};

/* execution modes */
enum slbt_mode {
	SLBT_MODE_UNKNOWN,
	SLBT_MODE_INFO,
	SLBT_MODE_CLEAN,
	SLBT_MODE_COMPILE,
	SLBT_MODE_EXECUTE,
	SLBT_MODE_FINISH,
	SLBT_MODE_INSTALL,
	SLBT_MODE_LINK,
	SLBT_MODE_UNINSTALL,
};

enum slbt_tag {
	SLBT_TAG_UNKNOWN,
	SLBT_TAG_CC,
	SLBT_TAG_CXX,
	SLBT_TAG_FC,
	SLBT_TAG_F77,
	SLBT_TAG_NASM,
	SLBT_TAG_RC,
};

enum slbt_warning_level {
	SLBT_WARNING_LEVEL_UNKNOWN,
	SLBT_WARNING_LEVEL_ALL,
	SLBT_WARNING_LEVEL_ERROR,
	SLBT_WARNING_LEVEL_NONE,
};

struct slbt_input {
	void *		addr;
	size_t		size;
};

struct slbt_source_version {
	int		major;
	int		minor;
	int		revision;
	const char *	commit;
};

struct slbt_fd_ctx {
	int		fdin;
	int		fdout;
	int		fderr;
	int		fdlog;
	int		fdcwd;
	int		fddst;
};

struct slbt_exec_ctx {
	char *		program;
	char *		compiler;
	char **		cargv;
	char **		xargv;
	char **		argv;
	char **		envp;
	char ** 	altv;
	char ** 	dpic;
	char ** 	fpic;
	char ** 	cass;
	char ** 	noundef;
	char ** 	soname;
	char ** 	lsoname;
	char ** 	symdefs;
	char ** 	symfile;
	char ** 	lout[2];
	char ** 	mout[2];
	char ** 	rpath[2];
	char ** 	sentinel;
	char *		csrc;
	int		ldirdepth;
	char *		ldirname;
	char *		lbasename;
	char *		lobjname;
	char *		aobjname;
	char *		ltobjname;
	char *		arfilename;
	char *		lafilename;
	char *		laifilename;
	char *		dsobasename;
	char *		dsofilename;
	char *		relfilename;
	char *		dsorellnkname;
	char *		deffilename;
	char *		rpathfilename;
	char *		dimpfilename;
	char *		pimpfilename;
	char *		vimpfilename;
	char *		exefilename;
	char *		sonameprefix;
	pid_t		pid;
	int		exitcode;
};

struct slbt_version_info {
	int		major;
	int		minor;
	int		revision;
	const char *	verinfo;
	const char *	vernumber;
};

struct slbt_error_info {
	const struct slbt_driver_ctx *	edctx;
	int				esyscode;
	int				elibcode;
	const char *			efunction;
	int				eline;
	unsigned			eflags;
	void *				eany;
};

struct slbt_host_params {
	const char *			host;
	const char *			flavor;
	const char *			ar;
	const char *			ranlib;
	const char *			windres;
	const char *			dlltool;
	const char *			mdso;
	const char *			ldrpath;
};

struct slbt_flavor_settings {
	const char *			imagefmt;
	const char *			arprefix;
	const char *			arsuffix;
	const char *			dsoprefix;
	const char *			dsosuffix;
	const char *			osdsuffix;
	const char *			osdfussix;
	const char *			exeprefix;
	const char *			exesuffix;
	const char *			impprefix;
	const char *			impsuffix;
	const char *			ldpathenv;
	char *				picswitch;
};

struct slbt_common_ctx {
	uint64_t			drvflags;
	uint64_t			actflags;
	uint64_t			fmtflags;
	struct slbt_host_params		host;
	struct slbt_host_params		cfgmeta;
	struct slbt_flavor_settings	settings;
	struct slbt_host_params		ahost;
	struct slbt_host_params		acfgmeta;
	struct slbt_flavor_settings	asettings;
	struct slbt_version_info	verinfo;
	enum slbt_mode			mode;
	enum slbt_tag			tag;
	enum slbt_warning_level		warnings;
	char **				cargv;
	char **				targv;
	char *				libname;
	const char *			ccwrap;
	const char *			target;
	const char *			output;
	const char *			shrext;
	const char *			rpath;
	const char *			sysroot;
	const char *			release;
	const char *			symfile;
	const char *			regex;
	const char *			user;
};

struct slbt_driver_ctx {
	const char *			program;
	const char *			module;
	const struct slbt_common_ctx *	cctx;
	struct slbt_error_info **	errv;
	void *				any;
};

/* raw input api */
slbt_api int  slbt_map_input            (const struct slbt_driver_ctx *,
                                         int, const char *, int,
                                         struct slbt_input *);

slbt_api int  slbt_unmap_input          (struct slbt_input *);

/* driver api */
slbt_api int  slbt_get_driver_ctx       (char ** argv, char ** envp, uint32_t flags,
                                         const struct slbt_fd_ctx *,
                                         struct slbt_driver_ctx **);

slbt_api void slbt_free_driver_ctx      (struct slbt_driver_ctx *);

slbt_api int  slbt_get_driver_fdctx     (const struct slbt_driver_ctx *, struct slbt_fd_ctx *);
slbt_api int  slbt_set_driver_fdctx     (struct slbt_driver_ctx *, const struct slbt_fd_ctx *);

/* execution context api */
slbt_api int  slbt_get_exec_ctx         (const struct slbt_driver_ctx *, struct slbt_exec_ctx **);
slbt_api void slbt_free_exec_ctx        (struct slbt_exec_ctx *);
slbt_api void slbt_reset_argvector      (struct slbt_exec_ctx *);
slbt_api void slbt_reset_arguments      (struct slbt_exec_ctx *);
slbt_api void slbt_reset_placeholders   (struct slbt_exec_ctx *);
slbt_api void slbt_disable_placeholders (struct slbt_exec_ctx *);

/* core api */
slbt_api int  slbt_exec_compile         (const struct slbt_driver_ctx *, struct slbt_exec_ctx *);
slbt_api int  slbt_exec_execute         (const struct slbt_driver_ctx *, struct slbt_exec_ctx *);
slbt_api int  slbt_exec_install         (const struct slbt_driver_ctx *, struct slbt_exec_ctx *);
slbt_api int  slbt_exec_link            (const struct slbt_driver_ctx *, struct slbt_exec_ctx *);
slbt_api int  slbt_exec_uninstall       (const struct slbt_driver_ctx *, struct slbt_exec_ctx *);

slbt_api int  slbt_set_alternate_host   (const struct slbt_driver_ctx *, const char * host, const char * flavor);
slbt_api void slbt_reset_alternate_host (const struct slbt_driver_ctx *);

slbt_api int  slbt_get_flavor_settings  (const char *, const struct slbt_flavor_settings **);

/* helper api */
slbt_api int  slbt_archive_import       (const struct slbt_driver_ctx *, struct slbt_exec_ctx *,
                                         char * dstarchive, char * srcarchive);
slbt_api int  slbt_copy_file            (const struct slbt_driver_ctx *, struct slbt_exec_ctx *,
                                         char * src, char * dst);
slbt_api int  slbt_dump_machine         (const char * compiler, char * machine, size_t bufsize);
slbt_api int  slbt_realpath             (int, const char *, int, char *, size_t);

/* utility api */
slbt_api int  slbt_main                 (char **, char **,
                                         const struct slbt_fd_ctx *);

slbt_api int  slbt_output_config        (const struct slbt_driver_ctx *);
slbt_api int  slbt_output_machine       (const struct slbt_driver_ctx *);
slbt_api int  slbt_output_features      (const struct slbt_driver_ctx *);
slbt_api int  slbt_output_fdcwd         (const struct slbt_driver_ctx *);
slbt_api int  slbt_output_exec          (const struct slbt_driver_ctx *, const struct slbt_exec_ctx *, const char *);
slbt_api int  slbt_output_compile       (const struct slbt_driver_ctx *, const struct slbt_exec_ctx *);
slbt_api int  slbt_output_execute       (const struct slbt_driver_ctx *, const struct slbt_exec_ctx *);
slbt_api int  slbt_output_install       (const struct slbt_driver_ctx *, const struct slbt_exec_ctx *);
slbt_api int  slbt_output_link          (const struct slbt_driver_ctx *, const struct slbt_exec_ctx *);
slbt_api int  slbt_output_uninstall     (const struct slbt_driver_ctx *, const struct slbt_exec_ctx *);
slbt_api int  slbt_output_error_record  (const struct slbt_driver_ctx *, const struct slbt_error_info *);
slbt_api int  slbt_output_error_vector  (const struct slbt_driver_ctx *);

/* package info */
slbt_api const struct slbt_source_version * slbt_source_version(void);

#ifdef __cplusplus
}
#endif

#endif