#ifndef SLIBTOOL_H
#define SLIBTOOL_H

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

#include "slibtool_api.h"
#include "slibtool_arbits.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_INFO		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)
#define SLBT_DRIVER_OUTPUT_CONFIG	SLBT_DRIVER_XFLAG(0x2000)

#define SLBT_DRIVER_MODE_AR		SLBT_DRIVER_XFLAG(0x010000)
#define SLBT_DRIVER_MODE_AR_CHECK	SLBT_DRIVER_XFLAG(0x020000)
#define SLBT_DRIVER_MODE_AR_MERGE	SLBT_DRIVER_XFLAG(0x040000)

/* unit action flags */
#define SLBT_ACTION_MAP_READWRITE	0x0001

/* 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_COMPILE_ERROR,
	SLBT_ERR_LINK_ERROR,
	SLBT_ERR_INSTALL_ERROR,
	SLBT_ERR_AR_ERROR,
	SLBT_ERR_COPY_ERROR,
	SLBT_ERR_MDSO_ERROR,
	SLBT_ERR_DLLTOOL_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,
	SLBT_ERR_AR_FAIL,
	SLBT_ERR_AR_EMPTY_FILE,
	SLBT_ERR_AR_INVALID_SIGNATURE,
	SLBT_ERR_AR_INVALID_HEADER,
	SLBT_ERR_AR_TRUNCATED_DATA,
	SLBT_ERR_AR_DUPLICATE_LONG_NAMES,
	SLBT_ERR_AR_DUPLICATE_ARMAP_MEMBER,
	SLBT_ERR_AR_MISPLACED_ARMAP_MEMBER,
	SLBT_ERR_AR_NO_ACTION_SPECIFIED,
	SLBT_ERR_AR_NO_INPUT_SPECIFIED,
	SLBT_ERR_AR_DRIVER_MISMATCH,
	SLBT_ERR_AR_ARMAP_MISMATCH,
	SLBT_ERR_AR_INVALID_ARMAP_NUMBER_OF_SYMS,
	SLBT_ERR_AR_INVALID_ARMAP_SIZE_OF_REFS,
	SLBT_ERR_AR_INVALID_ARMAP_SIZE_OF_STRS,
	SLBT_ERR_AR_INVALID_ARMAP_STRING_TABLE,
	SLBT_ERR_AR_INVALID_ARMAP_MEMBER_OFFSET,
	SLBT_ERR_AR_INVALID_ARMAP_NAME_OFFSET,
	SLBT_ERR_AR_OUTPUT_NOT_SPECIFIED,
	SLBT_ERR_AR_OUTPUT_NOT_APPLICABLE,
};

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

enum slbt_tag {
	SLBT_TAG_UNKNOWN,
	SLBT_TAG_CC,
	SLBT_TAG_CXX,
	SLBT_TAG_FC,
	SLBT_TAG_F77,
	SLBT_TAG_ASM,
	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 **         explarg;
	char **         expsyms;

	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 *		mapfilename;
	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 *			as;
	const char *			nm;
	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 *			mapsuffix;
	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 *			expsyms;
	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;
};

struct slbt_raw_archive {
	void *				map_addr;
	size_t				map_size;
};

struct slbt_archive_meta {
	struct slbt_raw_archive         r_archive;
	struct ar_raw_signature *       r_signature;

	struct ar_meta_signature *      m_signature;

	struct ar_meta_member_info **   a_memberv;
	struct ar_meta_member_info *    a_arref_longnames;
	struct ar_meta_armap_info       a_armap_primary;
	struct ar_meta_armap_info       a_armap_pecoff;
};

struct slbt_archive_ctx {
	const char * const *		path;
	const struct slbt_raw_archive *	map;
	const struct slbt_archive_meta *meta;
	void *				any;
};

struct slbt_symlist_ctx {
	const char * const *            path;
	const char **                   symstrv;
};

struct slbt_txtfile_ctx {
	const char * const *            path;
	const char **                   txtlinev;
};

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

slbt_api int  slbt_fs_unmap_input       (struct slbt_input *);

/* driver api */
slbt_api int  slbt_lib_get_driver_ctx   (char ** argv, char ** envp, uint64_t flags,
                                         const struct slbt_fd_ctx *,
                                         struct slbt_driver_ctx **);

slbt_api void slbt_lib_free_driver_ctx  (struct slbt_driver_ctx *);

slbt_api int  slbt_lib_get_driver_fdctx (const struct slbt_driver_ctx *, struct slbt_fd_ctx *);

slbt_api int  slbt_lib_set_driver_fdctx (struct slbt_driver_ctx *, const struct slbt_fd_ctx *);

slbt_api int  slbt_lib_get_symlist_ctx  (const struct slbt_driver_ctx *, const char *, struct slbt_symlist_ctx **);

slbt_api void slbt_lib_free_symlist_ctx (struct slbt_symlist_ctx *);

slbt_api int  slbt_lib_get_txtfile_ctx  (const struct slbt_driver_ctx *, const char *, struct slbt_txtfile_ctx **);

slbt_api void slbt_lib_free_txtfile_ctx (struct slbt_txtfile_ctx *);

/* command execution context api */
slbt_api int  slbt_ectx_get_exec_ctx    (const struct slbt_driver_ctx *, struct slbt_exec_ctx **);
slbt_api void slbt_ectx_free_exec_ctx   (struct slbt_exec_ctx *);
slbt_api void slbt_ectx_reset_argvector (struct slbt_exec_ctx *);
slbt_api void slbt_ectx_reset_arguments (struct slbt_exec_ctx *);

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

/* host and flavor interfaces */
slbt_api int  slbt_host_set_althost     (const struct slbt_driver_ctx *, const char * host, const char * flavor);

slbt_api void slbt_host_reset_althost   (const struct slbt_driver_ctx *);

slbt_api int slbt_host_objfmt_is_coff   (const struct slbt_driver_ctx *);

slbt_api int slbt_host_objfmt_is_macho  (const struct slbt_driver_ctx *);

slbt_api int slbt_host_group_is_winnt   (const struct slbt_driver_ctx *);

slbt_api int slbt_host_group_is_darwin  (const struct slbt_driver_ctx *);

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

/* utility helper interfaces */
slbt_api int  slbt_util_import_archive  (const struct slbt_exec_ctx *,
                                         char * dstarchive, char * srcarchive);

slbt_api int  slbt_util_copy_file       (struct slbt_exec_ctx *,
                                         const char * from, const char * to);

slbt_api int  slbt_util_create_mapfile  (const struct slbt_symlist_ctx *, const char *, mode_t);

slbt_api int  slbt_util_create_symfile  (const struct slbt_symlist_ctx *, const char *, mode_t);

slbt_api int  slbt_util_dump_machine    (const char * compiler, char * machine, size_t bufsize);

slbt_api int  slbt_util_real_path       (int, const char *, int, char *, size_t);

/* archiver api */
slbt_api int  slbt_ar_get_archive_ctx   (const struct slbt_driver_ctx *, const char * path,
                                         struct slbt_archive_ctx **);

slbt_api void slbt_ar_free_archive_ctx  (struct slbt_archive_ctx *);

slbt_api int  slbt_ar_get_archive_meta  (const struct slbt_driver_ctx *,
                                         const struct slbt_raw_archive *,
                                         struct slbt_archive_meta **);

slbt_api void slbt_ar_free_archive_meta (struct slbt_archive_meta *);

slbt_api int  slbt_ar_merge_archives    (struct slbt_archive_ctx * const [],
                                         struct slbt_archive_ctx **);

slbt_api int  slbt_ar_store_archive     (struct slbt_archive_ctx *,
                                         const char *, mode_t);

slbt_api int  slbt_ar_create_mapfile    (const struct slbt_archive_meta *, const char *, mode_t);

slbt_api int  slbt_ar_create_symfile    (const struct slbt_archive_meta *, const char *, mode_t);

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

slbt_api int  slbt_output_info          (const struct slbt_driver_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_exec_ctx *, const char *);
slbt_api int  slbt_output_compile       (const struct slbt_exec_ctx *);
slbt_api int  slbt_output_execute       (const struct slbt_exec_ctx *);
slbt_api int  slbt_output_install       (const struct slbt_exec_ctx *);
slbt_api int  slbt_output_link          (const struct slbt_exec_ctx *);
slbt_api int  slbt_output_uninstall     (const struct slbt_exec_ctx *);
slbt_api int  slbt_output_mapfile       (const struct slbt_symlist_ctx *);

slbt_api int  slbt_output_error_vector  (const struct slbt_driver_ctx *);
slbt_api int  slbt_output_error_record  (const struct slbt_driver_ctx *, const struct slbt_error_info *);

/* archiver utility api */
slbt_api int  slbt_au_output_arname     (const struct slbt_archive_ctx *);
slbt_api int  slbt_au_output_members    (const struct slbt_archive_meta *);
slbt_api int  slbt_au_output_symbols    (const struct slbt_archive_meta *);
slbt_api int  slbt_au_output_mapfile    (const struct slbt_archive_meta *);

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

#ifdef __cplusplus
}
#endif

#endif