#ifndef __CLAR_LIBGIT2__

#define __CLAR_LIBGIT2__

#include "clar.h"

#include <git2.h>

#include <posix.h>

#include "common.h"

/**

 * Replace for `clar_must_pass` that passes the last library error as the

 * test failure message.

 *

 * Use this wrapper around all `git_` library calls that return error codes!

 */

#define cl_git_pass(expr) cl_git_expect((expr), 0, __FILE__, __LINE__)

#define cl_git_fail_with(error, expr) cl_git_expect((expr), error, __FILE__, __LINE__)

#define cl_git_expect(expr, expected, file, line) do { \

	int _lg2_error; \

	giterr_clear(); \

	if ((_lg2_error = (expr)) != expected) \

		cl_git_report_failure(_lg2_error, expected, file, line, "Function call failed: " #expr); \

	} while (0)

/**

 * Wrapper for `clar_must_fail` -- this one is

 * just for consistency. Use with `git_` library

 * calls that are supposed to fail!

 */

#define cl_git_fail(expr) do { \

	giterr_clear(); \

	if ((expr) == 0) \

		cl_git_report_failure(0, 0, __FILE__, __LINE__, "Function call succeeded: " #expr); \

	} while (0)

/**

 * Like cl_git_pass, only for Win32 error code conventions

 */

#define cl_win32_pass(expr) do { \

	int _win32_res; \

	if ((_win32_res = (expr)) == 0) { \

		giterr_set(GITERR_OS, "Returned: %d, system error code: %d", _win32_res, GetLastError()); \

		cl_git_report_failure(_win32_res, 0, __FILE__, __LINE__, "System call failed: " #expr); \

	} \

	} while(0)

/**

 * Thread safe assertions; you cannot use `cl_git_report_failure` from a

 * child thread since it will try to `longjmp` to abort and "the effect of

 * a call to longjmp() where initialization of the jmp_buf structure was

 * not performed in the calling thread is undefined."

 *

 * Instead, callers can provide a clar thread error context to a thread,

 * which will populate and return it on failure.  Callers can check the

 * status with `cl_git_thread_check`.

 */

typedef struct {

	int error;

	const char *file;

	int line;

	const char *expr;

	char error_msg[4096];

} cl_git_thread_err;

#ifdef GIT_THREADS

# define cl_git_thread_pass(threaderr, expr) cl_git_thread_pass_(threaderr, (expr), __FILE__, __LINE__)

#else

# define cl_git_thread_pass(threaderr, expr) cl_git_pass(expr)

#endif

#define cl_git_thread_pass_(__threaderr, __expr, __file, __line) do { \

	giterr_clear(); \

	if ((((cl_git_thread_err *)__threaderr)->error = (__expr)) != 0) { \

		const git_error *_last = giterr_last(); \

		((cl_git_thread_err *)__threaderr)->file = __file; \

		((cl_git_thread_err *)__threaderr)->line = __line; \

		((cl_git_thread_err *)__threaderr)->expr = "Function call failed: " #__expr; \

		p_snprintf(((cl_git_thread_err *)__threaderr)->error_msg, 4096, "thread 0x%" PRIxZ " - error %d - %s", \

			git_thread_currentid(), ((cl_git_thread_err *)__threaderr)->error, \

			_last ? _last->message : "<no message>"); \

		git_thread_exit(__threaderr); \

	} \

	} while (0)

GIT_INLINE(void) cl_git_thread_check(void *data)

{

	cl_git_thread_err *threaderr = (cl_git_thread_err *)data;

	if (threaderr->error != 0)

		clar__assert(0, threaderr->file, threaderr->line, threaderr->expr, threaderr->error_msg, 1);

}

void cl_git_report_failure(int, int, const char *, int, const char *);

#define cl_assert_at_line(expr,file,line) \

	clar__assert((expr) != 0, file, line, "Expression is not true: " #expr, NULL, 1)

GIT_INLINE(void) clar__assert_in_range(

	int lo, int val, int hi,

	const char *file, int line, const char *err, int should_abort)

{

	if (lo > val || hi < val) {

		char buf[128];

		p_snprintf(buf, sizeof(buf), "%d not in [%d,%d]", val, lo, hi);

		clar__fail(file, line, err, buf, should_abort);

	}

}

#define cl_assert_equal_sz(sz1,sz2) do { \

	size_t __sz1 = (size_t)(sz1), __sz2 = (size_t)(sz2); \

	clar__assert_equal(__FILE__,__LINE__,#sz1 " != " #sz2, 1, "%"PRIuZ, __sz1, __sz2); \

} while (0)

#define cl_assert_in_range(L,V,H) \

	clar__assert_in_range((L),(V),(H),__FILE__,__LINE__,"Range check: " #V " in [" #L "," #H "]", 1)

#define cl_assert_equal_file(DATA,SIZE,PATH) \

	clar__assert_equal_file(DATA,SIZE,0,PATH,__FILE__,(int)__LINE__)

#define cl_assert_equal_file_ignore_cr(DATA,SIZE,PATH) \

	clar__assert_equal_file(DATA,SIZE,1,PATH,__FILE__,(int)__LINE__)

void clar__assert_equal_file(

	const char *expected_data,

	size_t expected_size,

	int ignore_cr,

	const char *path,

	const char *file,

	int line);

GIT_INLINE(void) clar__assert_equal_oid(

	const char *file, int line, const char *desc,

	const git_oid *one, const git_oid *two)

{

	if (git_oid_cmp(one, two)) {

		char err[] = "\"........................................\" != \"........................................\"";

		git_oid_fmt(&err[1], one);

		git_oid_fmt(&err[47], two);

		clar__fail(file, line, desc, err, 1);

	}

}

#define cl_assert_equal_oid(one, two) \

	clar__assert_equal_oid(__FILE__, __LINE__, \

		"OID mismatch: " #one " != " #two, (one), (two))

/*

 * Some utility macros for building long strings

 */

#define REP4(STR)	 STR STR STR STR

#define REP15(STR)	 REP4(STR) REP4(STR) REP4(STR) STR STR STR

#define REP16(STR)	 REP4(REP4(STR))

#define REP256(STR)  REP16(REP16(STR))

#define REP1024(STR) REP4(REP256(STR))

/* Write the contents of a buffer to disk */

void cl_git_mkfile(const char *filename, const char *content);

void cl_git_append2file(const char *filename, const char *new_content);

void cl_git_rewritefile(const char *filename, const char *new_content);

void cl_git_write2file(const char *path, const char *data,

	size_t datalen, int flags, unsigned int mode);

void cl_git_rmfile(const char *filename);

bool cl_toggle_filemode(const char *filename);

bool cl_is_chmod_supported(void);

/* Environment wrappers */

char *cl_getenv(const char *name);

bool cl_is_env_set(const char *name);

int cl_setenv(const char *name, const char *value);

/* Reliable rename */

int cl_rename(const char *source, const char *dest);

/* Git sandbox setup helpers */

git_repository *cl_git_sandbox_init(const char *sandbox);

git_repository *cl_git_sandbox_init_new(const char *name);

void cl_git_sandbox_cleanup(void);

git_repository *cl_git_sandbox_reopen(void);

/* Local-repo url helpers */

const char* cl_git_fixture_url(const char *fixturename);

const char* cl_git_path_url(const char *path);

/* Test repository cleaner */

int cl_git_remove_placeholders(const char *directory_path, const char *filename);

/* commit creation helpers */

void cl_repo_commit_from_index(

	git_oid *out,

	git_repository *repo,

	git_signature *sig,

	git_time_t time,

	const char *msg);

/* config setting helpers */

void cl_repo_set_bool(git_repository *repo, const char *cfg, int value);

int cl_repo_get_bool(git_repository *repo, const char *cfg);

void cl_repo_set_string(git_repository *repo, const char *cfg, const char *value);

/* set up a fake "home" directory and set libgit2 GLOBAL search path.

 *

 * automatically configures cleanup function to restore the regular search

 * path, although you can call it explicitly if you wish (with NULL).

 */

void cl_fake_home(void);

void cl_fake_home_cleanup(void *);

void cl_sandbox_set_search_path_defaults(void);

#ifdef GIT_WIN32

bool cl_sandbox_supports_8dot3(void);

#endif

#endif