/* radare - LGPL - Copyright 2020-2026 - pancake */

#include "r2r.h"
#if ALLINC
#include "load.c"
#include "run.c"
#endif
#include "r_lib.h"

#define WORKERS_DEFAULT 8

// global lock
static RThreadLock *Glock = NULL;

// global state for signal handler to flush partial JSON on kill
static R2RState *Gstate = NULL;
static const char *Goutput_file = NULL;

#define JSON_TEST_FILE_DEFAULT "bins/elf/crackme0x00b"
#define TIMEOUT_DEFAULT (60 * 60)
#define STRV(x) #x
#define STR(x) STRV(x)
#define WORKERS_DEFAULT_STR STR(WORKERS_DEFAULT)
#define TIMEOUT_DEFAULT_STR STR(TIMEOUT_DEFAULT)

typedef struct r2r_state_t {
	R2RRunConfig run_config;
	bool verbose;
	bool quiet;
	R2RTestDatabase *db;
	PJ *test_results;

	RThreadCond *cond; // signaled from workers to main thread to update status
	RThreadLock *lock; // protects everything below
	HtPP *path_left; // char *(path to test file) => ut64 *(count of remaining tests)
	RVecConstCharPtr completed_paths;
	ut64 counters[4]; // indexed by R2RTestResult: OK, FAILED, BROKEN, FIXED
	ut64 sk_count;
	ut64 total_paths; // total unique test paths (for log mode progress)
	RVecR2RTestPtr queue;
	RVecR2RTestResultInfoPtr results;
} R2RState;

typedef struct r2r_options_t {
	int workers_count;
	bool verbose;
	bool nothing;
	bool quiet;
	bool log_mode;
	bool interactive;
	bool get_bins;
	int shallow;
	ut64 timeout_sec;
	char *json_test_file;
	char *output_file;
	char *fuzz_dir;
	const char *r2r_dir;
} R2ROptions;

static void results_clear(RVecR2RTestResultInfoPtr *vec) {
	R2RTestResultInfo **it;
	R_VEC_FOREACH (vec, it) {
		r2r_test_result_info_free (*it);
	}
	RVecR2RTestResultInfoPtr_fini (vec);
}

static void parse_skip(const char *arg) {
	if (strstr (arg, "arch")) {
		r_sys_setenv ("R2R_SKIP_ARCHOS", "1");
	} else if (strstr (arg, "unit")) {
		r_sys_setenv ("R2R_SKIP_UNIT", "1");
	} else if (strstr (arg, "cmd")) {
		r_sys_setenv ("R2R_SKIP_CMD", "1");
	} else if (strstr (arg, "fuzz")) {
		r_sys_setenv ("R2R_SKIP_FUZZ", "1");
	} else if (strstr (arg, "json")) {
		r_sys_setenv ("R2R_SKIP_JSON", "1");
	} else if (strstr (arg, "leak")) {
		r_sys_setenv ("R2R_SKIP_LEAK", "1");
	} else if (strstr (arg, "asm")) {
		r_sys_setenv ("R2R_SKIP_ASM", "1");
	} else {
		R_LOG_ERROR ("Invalid -s argument: @arch @asm @cmd @fuzz @json @leak @unit");
	}
}

static void helpvars(int workers_count) {
	printf (
		"R2R_SKIP_ARCHOS=0   # do not run the arch-os-specific tests\n"
		"R2R_SKIP_JSON=0     # do not run the JSON tests\n"
		"R2R_SKIP_FUZZ=0     # do not run the fuzz tests\n"
		"R2R_SKIP_UNIT=0     # do not run the unit tests\n"
		"R2R_SKIP_CMD=0      # do not run the cmds tests\n"
		"R2R_SKIP_ASM=0      # do not run the rasm2 tests\n"
		"R2R_SKIP_LEAK=0     # do not run the leak tests (valgrind)\n"
		"R2R_JOBS=%d       # maximum parallel jobs\n"
		"R2R_TIMEOUT=%d    # timeout after 1 minute (60 * 60)\n"
		"R2R_OFFLINE=0       # same as passing -u\n"
		"R2R_SHALLOW=0       # skip 0-100%% random tests\n"
		"R2R_RADARE2=radare2 # path to radare2 for the cmd tests\n",
		workers_count,
		TIMEOUT_DEFAULT);
}

static int help(bool verbose, int workers_count) {
	printf ("Usage: r2r [-qvVnLi] [-C dir] [-F dir] [-f file] [-o file] [-s test] [-t seconds] [-j threads] [test file/dir | @test-type]\n");
	if (verbose) {
		printf (
			" -1           same as -j1\n"
			" -C [dir]     chdir before running r2r (default follows executable symlink + test/new\n"
			" -F [dir]     run fuzz tests (open and default analysis) on all files in the given dir\n"
			" -f [file]    file to use for json tests (default is " JSON_TEST_FILE_DEFAULT ")\n"
			" -g           run the tests specified via '// R2R' comments in modified source files\n"
			" -H           display environment variables\n"
			" -h           print this help\n"
			" -i           interactive mode\n"
			" -j [threads] how many threads to use for running tests concurrently (default is " WORKERS_DEFAULT_STR ")\n"
			" -L           log mode (better printing for CI, logfiles, etc.)\n"
			" -n           do nothing (don't run any test, just load/parse them)\n"
			" -o [file]    output test run information in JSON format to file\n"
			" -q           quiet\n"
			" -S [0-100]   set R2R_SHALLOW=N to skip a random percentage of tests\n"
			" -s [test]    set R2R_SKIP_(TEST)=1 to skip running that test type\n"
			" -t [seconds] timeout per test (default is " TIMEOUT_DEFAULT_STR ")\n"
			" -u           do not git pull/clone test/bins (See R2R_OFFLINE)\n"
			" -v           show version\n"
			" -V           verbose\n"
			"\n");
		helpvars (workers_count);
		printf ("\nSupported test types: @arch @asm @cmd @fuzz @json @leak @unit\nOS/Arch for archos tests: %s\n", R_SYS_ARCHOSBITS);
	}
	return 1;
}

static void path_left_free_kv(HtPPKv *kv) {
	free (kv->value);
}

static inline bool is_dbpath(const char *arg) {
	return *arg == '@' || r_str_startswith (arg, "db/") || !strcmp (arg, "db");
}

static char *r2r_test_directory(const char *argv0) {
#if R2__UNIX__
	char src_path[PATH_MAX];
	char *r2r_path = (*argv0 == '/')
		? strdup (argv0)
		: r_file_path (argv0);
	if (r2r_path) {
		char *check_path = r2r_path;
		ssize_t len = readlink (r2r_path, src_path, sizeof (src_path) - 1);
		if (len != -1) {
			src_path[len] = '\0';
			check_path = src_path;
		}
		char *p = strstr (check_path, "/binr/r2r/r2r");
		if (p) {
			*p = 0;
			char *test_path = r_file_new (check_path, "test", NULL);
			free (r2r_path);
			if (r_file_is_directory (test_path)) {
				return test_path;
			}
			free (test_path);
			return NULL;
		}
		free (r2r_path);
	}
#endif
	return NULL;
}

static bool r2r_chdir(const char *argv0) {
	bool found = false;
#if R2__UNIX__
	if (r_file_is_directory ("db")) {
		return true;
	}
	char *test_path = r2r_test_directory (argv0);
	if (test_path) {
		if (chdir (test_path) != -1) {
			R_LOG_INFO ("Running from %s", test_path);
			found = true;
		} else {
			R_LOG_ERROR ("Cannot find '%s' directory", test_path);
		}
		free (test_path);
	}
#endif
	return found;
}

static char *makepath(void) {
	char *make = r_file_path ("gmake");
	if (!make) {
		make = r_file_path ("make");
	}
	return make;
}

static bool r2r_test_run_unit(void) {
	char *make = makepath ();
	if (!make) {
		R_LOG_ERROR ("Cannot find `make` in PATH");
		return false;
	}
	char *cmd = r_str_newf ("%s -C unit run", make);
	int rc = r_sandbox_system (cmd, 1);
	free (cmd);
	free (make);
	return rc == 0;
}

static bool r2r_chdir_fromtest(const char *test_path) {
	if (*test_path == '@') {
		test_path = "";
	}
	char *abs_test_path = r_file_abspath (test_path);
	if (!r_file_is_directory (abs_test_path)) {
		char *last_slash = (char *)r_str_lchr (abs_test_path, R_SYS_DIR[0]);
		if (last_slash) {
			*last_slash = 0;
		}
	}
	if (chdir (abs_test_path) == -1) {
		free (abs_test_path);
		return false;
	}
	free (abs_test_path);
	bool found = false;
	char *cwd = NULL;
	char *old_cwd = NULL;
	while (true) {
		cwd = r_sys_getdir ();
		if (old_cwd && !strcmp (old_cwd, cwd)) {
			break;
		}
		if (r_file_is_directory ("test")) {
			if (!r_sys_chdir ("test")) {
				R_LOG_ERROR ("Cannot enter into the 'test' directory");
				break;
			}
			if (r_file_is_directory ("db")) {
				found = true;
				R_LOG_INFO ("Running from %s", cwd);
				break;
			}
			if (!r_sys_chdir ("..")) {
				R_LOG_ERROR ("Cannot up one directory");
				break;
			}
		}
		if (r_file_is_directory ("db")) {
			found = true;
			R_LOG_INFO ("Running from %s", cwd);
			break;
		}
		free (old_cwd);
		old_cwd = cwd;
		cwd = NULL;
		if (chdir ("..") == -1) {
			break;
		}
	}
	free (old_cwd);
	free (cwd);
	return found;
}

static void r2r_from_sourcecomments(RList *list, const char *path) {
	const char bait[] = "// R2R ";
	char *s = r_file_slurp (path, NULL);
	if (s) {
		char *p = s;
		while (p) {
			char *r2r = strstr (p, bait);
			if (!r2r) {
				break;
			}
			r2r += strlen (bait);
			if (*r2r != '"') {
				char *nl = strchr (r2r, '\n');
				if (nl) {
					*nl = 0;
					p = nl + 1;
				}
				char *tests = strdup (r2r);
				int i, items = r_str_split (tests, ' ');
				char *test = tests;
				for (i = 0; i < items; i++) {
					r_list_append (list, strdup (test));
					test += strlen (test) + 1;
				}
				free (tests);
			} else {
				p = r2r + strlen (bait);
			}
		}
		free (s);
	} else {
		R_LOG_WARN ("Cannot open %s", path);
	}
}

static R2ROptions r2r_options_init(void) {
	R2ROptions opt = { 0 };
	opt.workers_count = WORKERS_DEFAULT;
	opt.timeout_sec = TIMEOUT_DEFAULT;
	opt.get_bins = !r_sys_getenv_asbool ("R2R_OFFLINE");
	opt.shallow = r_sys_getenv_asut64 ("R2R_SHALLOW");
	char *r2r_timeout = r_sys_getenv ("R2R_TIMEOUT");
	if (R_STR_ISNOTEMPTY (r2r_timeout)) {
		opt.timeout_sec = r_num_math (NULL, r2r_timeout);
	}
	free (r2r_timeout);
	ut64 r2r_jobs = r_sys_getenv_asut64 ("R2R_JOBS");
	if (r2r_jobs > 0) {
		opt.workers_count = r2r_jobs;
	}
	return opt;
}

static void r2r_options_fini(R2ROptions *opt) {
	free (opt->json_test_file);
	free (opt->output_file);
	free (opt->fuzz_dir);
}

static void r2r_git(void) {
	int max = 10;
	while (max-- > 0) {
		if (r_file_is_directory (".git")) {
			break;
		}
		if (chdir ("..") == -1) {
			break;
		}
	}
	char *changes = r_sys_cmd_strf ("git diff --name-only");
	RList *lines = r_str_split_list (changes, "\n", 0);
	RList *tests = r_list_newf (free);
	RListIter *iter;
	char *line, *test;
	r_list_foreach (lines, iter, line) {
		if (r_str_endswith (line, ".c")) {
			r2r_from_sourcecomments (tests, line);
		}
	}
	r_list_foreach (tests, iter, test) {
		R_LOG_INFO ("Running r2r -i test/%s", test);
		r_sys_cmdf ("r2r -i test/%s", test);
	}
	r_list_free (lines);
	free (changes);
}

// Returns: >= 0 = arg index to continue from, -1 = exit with success, -2 = exit with error
static int r2r_parse_args(R2ROptions *opt, int argc, char **argv) {
	RGetopt go;
	r_getopt_init (&go, argc, (const char **)argv, "hqvj:r:m:f:C:LnVt:F:io:s:ugHS:1");

	int c;
	while ((c = r_getopt_next (&go)) != -1) {
		switch (c) {
		case '1':
			opt->workers_count = 1;
			break;
		case 'g':
			r2r_git ();
			return -1;
		case 'h':
			help (true, opt->workers_count);
			return -1;
		case 'q':
			opt->quiet = true;
			r_log_set_quiet (true);
			break;
		case 'v':
			if (opt->quiet) {
				printf (R2_VERSION "\n");
			} else {
				char *s = r_str_version ("r2r");
				if (s) {
					printf ("%s\n", s);
					free (s);
				}
			}
			return -1;
		case 'V':
			opt->verbose = true;
			break;
		case 'i':
			opt->interactive = true;
			break;
		case 'L':
			opt->log_mode = true;
			break;
		case 's':
			parse_skip (go.arg);
			break;
		case 'S':
			opt->shallow = atoi (go.arg);
			r_sys_setenv_asut64 ("R2R_SHALLOW", opt->shallow);
			break;
		case 'F':
			free (opt->fuzz_dir);
			opt->fuzz_dir = strdup (go.arg);
			break;
		case 'j':
			opt->workers_count = atoi (go.arg);
			if (opt->workers_count <= 0) {
				R_LOG_ERROR ("Invalid thread count");
				help (false, opt->workers_count);
				return -2;
			}
			break;
		case 'C':
			opt->r2r_dir = go.arg;
			break;
		case 'n':
			opt->nothing = true;
			break;
		case 'f':
			free (opt->json_test_file);
			opt->json_test_file = strdup (go.arg);
			break;
		case 'H':
			helpvars (opt->workers_count);
			return -1;
		case 'u':
			opt->get_bins = false;
			break;
		case 't':
			opt->timeout_sec = r_num_math (NULL, go.arg);
			if (!opt->timeout_sec) {
				opt->timeout_sec = UT64_MAX;
			}
			break;
		case 'o':
			free (opt->output_file);
			opt->output_file = r_file_abspath (go.arg);
			break;
		default:
			help (false, opt->workers_count);
			return -2;
		}
	}
	return go.ind;
}

static bool r2r_setup_directory(R2ROptions *opt, int arg_ind, int argc, char **argv, char **cwd_out) {
	char *cwd = r_sys_getdir ();
	*cwd_out = cwd;

	if (opt->r2r_dir) {
		if (chdir (opt->r2r_dir) == -1) {
			R_LOG_ERROR ("Cannot find %s directory", opt->r2r_dir);
			return false;
		}
		return true;
	}

	bool dir_found = false;
	if (arg_ind < argc) {
		const char *avi = argv[arg_ind];
		if (!strcmp (avi, ".")) {
			avi = cwd;
			argv[arg_ind] = cwd;
		}
		if (is_dbpath (avi)) {
			dir_found = r2r_chdir (argv[0]);
		} else if (avi[0] != '.' || (*avi && !avi[1])) {
			dir_found = r2r_chdir_fromtest (avi);
		} else {
			dir_found = r2r_chdir (argv[0]);
		}
	} else {
		dir_found = r2r_chdir (argv[0]);
	}

	if (!dir_found) {
		R_LOG_ERROR ("Cannot find db/ directory related to the given test");
		return false;
	}
	return true;
}

static void r2r_setup_environment(void) {
	char *r2_bin = r_sys_getenv ("R2_BIN");
	if (!r2_bin) {
		r_sys_setenv ("R2_BIN", R2_BINDIR);
		r_sys_setenv_sep ("PATH", R2_BINDIR, false);
	}
	free (r2_bin);
	char *have_options = r_sys_getenv ("ASAN_OPTIONS");
	if (have_options) {
		free (have_options);
	} else {
		r_sys_setenv ("ASAN_OPTIONS", "detect_leaks=false detect_odr_violation=0");
	}
	r_sys_setenv ("RABIN2_TRYLIB", "0");
	r_sys_setenv ("R2_DEBUG_ASSERT", "1");
	r_sys_setenv ("R2_DEBUG_EPRINT", "0");
	r_sys_setenv ("TZ", "UTC");
}

static bool validate_suite(R2RState *state) {
	// check for radare2
	char *r2_binary = r_sys_getenv ("R2R_RADARE2");
	if (R_STR_ISNOTEMPTY (r2_binary)) {
		state->run_config.r2_cmd = strdup (r2_binary);
	} else {
		state->run_config.r2_cmd = r_file_path ("radare2");
	}
	free (r2_binary);
	if (!state->run_config.r2_cmd) {
		R_LOG_ERROR ("Cannot find radare2 in PATH. Set R2R_RADARE2 env to specify its location");
		return false;
	}
	// check for rasm2
	char *rasm2_binary = r_sys_getenv ("R2R_RASM2");
	if (R_STR_ISNOTEMPTY (rasm2_binary)) {
		state->run_config.rasm2_cmd = strdup (rasm2_binary);
	} else {
		state->run_config.rasm2_cmd = r_file_path ("rasm2");
	}
	free (rasm2_binary);
	if (!state->run_config.rasm2_cmd) {
		R_LOG_ERROR ("Cannot find rasm2 in PATH. Set R2R_RASM2 env to specify its location");
		return false;
	}
	R_LOG_INFO ("R2R_RADARE2: %s", state->run_config.r2_cmd);
	R_LOG_INFO ("R2R_RASM2: %s", state->run_config.rasm2_cmd);
	if (r_sys_cmdf ("%s -v", state->run_config.r2_cmd) != 0) {
		if (r_sys_cmdf ("%s -v", state->run_config.r2_cmd) != 0) {
			R_LOG_ERROR ("Failed to run r2 -v");
			return false;
		}
	}
	printf ("%s-%d  r2r\n", R2_GITTAP, R2_ABIVERSION);
	// TODO: check if r2r binary version is the same as the r2/rasm2 ones
	if (r_sys_cmdf ("%s -V", state->run_config.r2_cmd) != 0) {
		R_LOG_ERROR ("Inconsistent versions of r2 and its libraries");
		r_sys_sleep (3);
		// return false;
	}
	return true;
}

static bool r2r_state_init(R2RState *state, R2ROptions *opt) {
	memset (state, 0, sizeof (R2RState));

	if (!validate_suite (state)) {
		return false;
	}
	Glock = r_th_lock_new (false);
	if (opt->shallow > 0) {
		r_num_irand ();
		state->run_config.shallow = opt->shallow;
	}
	state->run_config.skip_cmd = r_sys_getenv_asbool ("R2R_SKIP_CMD");
	state->run_config.skip_asm = r_sys_getenv_asbool ("R2R_SKIP_ASM");
	state->run_config.skip_json = r_sys_getenv_asbool ("R2R_SKIP_JSON");
	state->run_config.skip_fuzz = r_sys_getenv_asbool ("R2R_SKIP_FUZZ");
	state->run_config.skip_leak = r_sys_getenv_asbool ("R2R_SKIP_LEAK");
	state->run_config.json_test_file = opt->json_test_file? opt->json_test_file: JSON_TEST_FILE_DEFAULT;
	state->run_config.timeout_ms = (opt->timeout_sec > UT64_MAX / 1000)? UT64_MAX: opt->timeout_sec * 1000;
	state->verbose = opt->verbose;
	state->quiet = opt->quiet;

	state->db = r2r_test_database_new ();
	RVecR2RTestPtr_init (&state->queue);
	RVecR2RTestResultInfoPtr_init (&state->results);
	RVecConstCharPtr_init (&state->completed_paths);

	if (opt->output_file) {
		state->test_results = pj_new ();
		pj_a (state->test_results);
	}
	state->lock = r_th_lock_new (false);
	if (state->lock) {
		state->cond = r_th_cond_new ();
		if (state->cond) {
			return true;
		}
	}
	return false;
}

static void r2r_state_fini(R2RState *state) {
	RVecR2RTestPtr_fini (&state->queue);
	results_clear (&state->results);
	RVecConstCharPtr_fini (&state->completed_paths);
	r2r_test_database_free (state->db);
	ht_pp_free (state->path_left);
	r_th_lock_free (state->lock);
	r_th_cond_free (state->cond);
	free (state->run_config.r2_cmd);
	free (state->run_config.rasm2_cmd);
}

// Returns: 0 = success, -1 = error, 1 = special exit (e.g., .c file handling)
static int r2r_load_tests(R2RState *state, R2ROptions *opt, int arg_ind, int argc, char **argv, char *cwd) {
	bool skip_json_tests = !r2r_check_jq_available ();
	if (skip_json_tests) {
		R_LOG_INFO ("Skipping json tests because jq is not available");
	}
	bool skip_leak_tests = !r2r_check_valgrind_available ();
	if (skip_leak_tests) {
		R_LOG_INFO ("Skipping leak tests because valgrind is not available");
	}
	if (arg_ind >= argc) {
		if (!r2r_test_database_load (state->db, "db", skip_json_tests, skip_leak_tests)) {
			R_LOG_ERROR ("Failed to load tests from ./db");
			return -1;
		}
		if (opt->fuzz_dir && !r2r_test_database_load_fuzz (state->db, opt->fuzz_dir)) {
			R_LOG_ERROR ("Failed to load fuzz tests from \"%s\"", opt->fuzz_dir);
		}
		return 0;
	}
	int i;
	for (i = arg_ind; i < argc; i++) {
		const char *arg = argv[i];
		char *arg_str = NULL;
		if (*arg == '@') {
			arg++;
			eprintf ("Category: %s\n", arg);
			if (!strcmp (arg, "unit")) {
				if (!r2r_test_run_unit ()) {
					return -1;
				}
				continue;
			} else if (!strcmp (arg, "fuzz")) {
				if (!opt->fuzz_dir) {
					R_LOG_ERROR ("No fuzz dir given. Use -F [dir]");
					return -1;
				}
				if (!r2r_test_database_load_fuzz (state->db, opt->fuzz_dir)) {
					R_LOG_ERROR ("Failed to load fuzz tests from \"%s\"", opt->fuzz_dir);
				}
				continue;
			} else if (!strcmp (arg, "json")) {
				arg = "db/json";
			} else if (!strcmp (arg, "dasm")) {
				arg = "db/asm";
			} else if (!strcmp (arg, "cmds") || !strcmp (arg, "cmd")) {
				arg = "db";
			} else if (!strcmp (arg, "asm")) {
				arg = "db/asm";
			} else if (!strcmp (arg, "arch")) {
				arg = "db/archos";
			} else if (!strcmp (arg, "leak")) {
				arg = "db/leak";
			} else {
				arg_str = r_str_newf ("db/%s", arg);
				arg = arg_str;
			}
		}
		if (r_str_endswith (arg, ".c")) {
			char *abspath = strdup (arg);
			if (*arg != '/') {
				free (abspath);
				abspath = r_str_newf ("%s/%s", cwd, arg);
			}
			RList *tests = r_list_newf (free);
			r2r_from_sourcecomments (tests, abspath);
			free (abspath);
			RListIter *iter;
			char *test;
			int grc = 0;
			r_list_foreach (tests, iter, test) {
				R_LOG_INFO ("Running %s", test);
				int rc = r_sys_cmdf ("r2r %s %s", opt->interactive? "-i": "", test);
				if (rc != 0) {
					grc = rc;
				}
			}
			r_list_free (tests);
			free (arg_str);
			return grc? grc: 1; // Signal special exit
		}
		char *tf = is_dbpath (arg)
			? r_file_abspath (arg)
			: r_file_abspath_rel (cwd, arg);
		if (!tf || !r2r_test_database_load (state->db, tf, skip_json_tests, skip_leak_tests)) {
			R_LOG_ERROR ("Failed to load tests from \"%s\"", tf);
			free (tf);
			free (arg_str);
			return -1;
		}
		free (tf);
		free (arg_str);
	}
	return 0;
}

static void r2r_setup_log_mode(R2RState *state) {
	state->path_left = ht_pp_new (NULL, path_left_free_kv, NULL);
	if (state->path_left) {
		ut64 path_count = 0;
		R2RTest **it;
		R_VEC_FOREACH (&state->queue, it) {
			R2RTest *test = *it;
			ut64 *count = ht_pp_find (state->path_left, test->path, NULL);
			if (!count) {
				count = malloc (sizeof (ut64));
				*count = 0;
				ht_pp_insert (state->path_left, test->path, count);
				path_count++;
			}
			(*count)++;
		}
		state->total_paths = path_count;
	}
}

static void print_state_counts(R2RState *state) {
	printf ("%8" PFMT64u " OK  %8" PFMT64u " BR %8" PFMT64u " XX %8" PFMT64u " SK %8" PFMT64u " FX",
		state->counters[R2R_TEST_RESULT_OK],
		state->counters[R2R_TEST_RESULT_BROKEN],
		state->counters[R2R_TEST_RESULT_FAILED],
		state->sk_count,
		state->counters[R2R_TEST_RESULT_FIXED]);
}

static void test_result_to_json(PJ *pj, R2RTestResultInfo *result) {
	R_RETURN_IF_FAIL (pj && result);
	pj_o (pj);
	pj_k (pj, "type");
	R2RTest *test = result->test;
	switch (test->type) {
	case R2R_TEST_TYPE_CMD:
		pj_s (pj, "cmd");
		if (test->cmd_test->name.value) {
			pj_ks (pj, "name", test->cmd_test->name.value);
		}
		break;
	case R2R_TEST_TYPE_ASM:
		pj_s (pj, "asm");
		pj_ks (pj, "arch", test->asm_test->arch);
		pj_ki (pj, "bits", test->asm_test->bits);
		pj_kn (pj, "line", test->asm_test->line);
		break;
	case R2R_TEST_TYPE_JSON:
		pj_s (pj, "json");
		pj_ks (pj, "cmd", test->json_test->cmd);
		break;
	case R2R_TEST_TYPE_LEAK:
		pj_s (pj, "leak");
		if (test->cmd_test->name.value) {
			pj_ks (pj, "name", test->cmd_test->name.value);
		}
		break;
	case R2R_TEST_TYPE_FUZZ:
		pj_s (pj, "fuzz");
		pj_ks (pj, "file", test->fuzz_test->file);
		break;
	}
	pj_k (pj, "result");
	if (result->run_skipped) {
		pj_s (pj, "skipped");
	} else switch (result->result) {
	case R2R_TEST_RESULT_OK:
		pj_s (pj, "ok");
		break;
	case R2R_TEST_RESULT_FAILED:
		pj_s (pj, "failed");
		break;
	case R2R_TEST_RESULT_BROKEN:
		pj_s (pj, "broken");
		break;
	case R2R_TEST_RESULT_FIXED:
		pj_s (pj, "fixed");
		break;
	}
	pj_kb (pj, "run_failed", result->run_failed);
	pj_kb (pj, "skipped", result->run_skipped);
	pj_kn (pj, "time_elapsed", result->time_elapsed);
	pj_kb (pj, "timeout", result->timeout);
	pj_end (pj);
}

static void print_diff(const char *actual, const char *expected, bool diffchar, const char *regexp) {
	RDiff *d = r_diff_new ();
#ifdef R2__WINDOWS__
	d->diff_cmd = "git diff --no-index";
#endif
	if (!actual) {
		actual = "";
	}
	if (!expected) {
		expected = "";
	}
	char *output = NULL;
	if (regexp) {
		RRegex *rx = r_regex_new (regexp, "en");
		RList *matches = r_regex_match_list (rx, actual);
		output = r_list_to_str (matches, '\0');
		r_list_free (matches);
		r_regex_free (rx);
		if (!output) {
			output = strdup ("");
		}
	} else {
		output = strdup (actual);
	}
	if (diffchar) {
		RDiffChar *diff = r_diffchar_new ((const ut8 *)expected, (const ut8 *)actual);
		if (diff) {
			r_diffchar_print (diff);
			r_diffchar_free (diff);
			goto cleanup;
		}
		d->diff_cmd = "git diff --no-index --word-diff=porcelain --word-diff-regex=.";
	}
	char *uni = r_diff_buffers_tostring (d, (const ut8 *)expected, (int)strlen (expected), (const ut8 *)output, (int)strlen (output));
	r_diff_free (d);
	if (!uni) {
		R_LOG_ERROR ("Failed to generate unified diff");
		goto cleanup;
	}

	RList *lines = r_str_split_duplist (uni, "\n", false);
	if (!lines) {
		free (uni);
		R_LOG_ERROR ("Failed to split unified diff output");
		goto cleanup;
	}
	RListIter *it;
	char *line;
	bool header_found = false;
	r_list_foreach (lines, it, line) {
		if (!header_found) {
			if (r_str_startswith (line, "+++ ")) {
				header_found = true;
			}
			continue;
		}
		if (r_str_startswith (line, "@@ ") && r_str_endswith (line, " @@")) {
			printf ("%s%s%s\n", Color_CYAN, line, Color_RESET);
			continue;
		}
		bool color = true;
		char c = *line;
		switch (c) {
		case '+':
			printf ("%s" Color_INSERT, diffchar? Color_BGINSERT: "");
			break;
		case '-':
			printf ("%s" Color_DELETE, diffchar? Color_BGDELETE: "");
			break;
		case '~': // can't happen if !diffchar
			printf ("\n");
			continue;
		default:
			color = false;
			break;
		}
		if (diffchar) {
			printf ("%s", *line? line + 1: "");
		} else {
			printf ("%s\n", line);
		}
		if (color) {
			printf ("%s", Color_RESET);
		}
	}
	r_list_free (lines);
	free (uni);
	printf ("\n");
cleanup:
	free (output);
}

static bool compare_outputs(const char *output, const char *expect, const char *regexp) {
	if (regexp) {
		return !r_regex_match (regexp, "e", output);
	}
	return !strcmp (expect, output);
}

static void print_cmd_test_diff(R2RTestResultInfo *result) {
	const char *expect = result->test->cmd_test->expect.value;
	const char *out = result->proc_out? result->proc_out->out: "";
	const char *regexp_out = result->test->cmd_test->regexp_out.value;
	if ((expect || regexp_out) && !compare_outputs (out, expect, regexp_out)) {
		printf ("-- stdout\n");
		print_diff (out, expect, false, regexp_out);
	}
	expect = result->test->cmd_test->expect_err.value;
	const char *err = result->proc_out? result->proc_out->err: "";
	const char *regexp_err = result->test->cmd_test->regexp_err.value;
	if ((expect || regexp_err) && !compare_outputs (err, expect, regexp_err)) {
		printf ("-- stderr\n");
		print_diff (err, expect, false, regexp_err);
	} else if (*err) {
		printf ("-- stderr\n%s\n", err);
	}
	if (result->proc_out && result->proc_out->ret != 0) {
		printf ("-- exit status: " Color_RED "%d" Color_RESET "\n", result->proc_out->ret);
	}
}

static R2RProcessOutput *print_runner(const char *file, const char *args[], size_t args_size, const char *envvars[], const char *envvals[], size_t env_size, ut64 timeout_ms, void *user) {
	size_t i;
	for (i = 0; i < env_size; i++) {
		printf ("%s=%s ", envvars[i], envvals[i]);
	}
	printf ("%s", file);
	for (i = 0; i < args_size; i++) {
		const char *str = args[i];
		if (R_STR_ISEMPTY (str)) {
			break;
		}
		if (strpbrk (str, "\n \'\"")) {
			printf (" '%s'", str); // TODO: escape
		} else {
			printf (" %s", str);
		}
	}
	printf ("\n");
	return NULL;
}

static void print_result_diff(R2RRunConfig *config, R2RTestResultInfo *result) {
	r_th_lock_enter (Glock);
	if (result->run_failed) {
		printf (Color_RED "RUN FAILED (e.g. wrong radare2 path)" Color_RESET "\n");
	} else {
		switch (result->test->type) {
		case R2R_TEST_TYPE_CMD:
			r2r_process_output_free (r2r_run_cmd_test (config, result->test->cmd_test, print_runner, NULL));
			print_cmd_test_diff (result);
			break;
		case R2R_TEST_TYPE_FUZZ:
			r2r_process_output_free (r2r_run_fuzz_test (config, result->test->path, print_runner, NULL));
			// TODO. maybe unify with print_cmd_test_diff
			printf ("-- stdout\n%s\n", result->proc_out->out);
			printf ("-- stderr\n%s\n", result->proc_out->err);
			printf ("-- exit status: " Color_RED "%d" Color_RESET "\n", result->proc_out->ret);
			break;
		case R2R_TEST_TYPE_LEAK:
			// Print the command that was run (print_runner just prints, returns NULL)
			r2r_process_output_free (r2r_run_leak_test (config, result->test->cmd_test, print_runner, NULL));
			// Use the original proc_out which has the actual valgrind output
			if (result->proc_out) {
				printf ("-- valgrind output\n%s\n", result->proc_out->out);
				if (result->proc_out->err) {
					printf ("-- stderr\n%s\n", result->proc_out->err);
				}
			} else {
				R_LOG_ERROR ("proc_out is null, test may have failed to run");
			}
			break;
		case R2R_TEST_TYPE_ASM:
		case R2R_TEST_TYPE_JSON:
			// diffing not yet implemented for those tests
			break;
		}
	}
	r_th_lock_leave (Glock);
}

static void print_new_results(R2RState *state, ut64 prev_completed) {
	// Detailed test result (with diff if necessary)
	ut64 completed = RVecR2RTestResultInfoPtr_length (&state->results);
	ut64 i;
	for (i = prev_completed; i < completed; i++) {
		R2RTestResultInfo *result = *RVecR2RTestResultInfoPtr_at (&state->results, i);
		if (state->test_results) {
			test_result_to_json (state->test_results, result);
		}
		/* In quiet mode only print failing tests; otherwise follow verbose flag rules */
		if (state->quiet) {
			if (result->result != R2R_TEST_RESULT_FAILED) {
				continue;
			}
		} else if (!state->verbose && (result->result == R2R_TEST_RESULT_OK || result->result == R2R_TEST_RESULT_FIXED || result->result == R2R_TEST_RESULT_BROKEN)) {
			continue;
		}
		char *name = r2r_test_name (result->test);
		if (!name) {
			continue;
		}
		printf ("\n" R_CONS_CURSOR_UP R_CONS_CLEAR_LINE);
		switch (result->result) {
		case R2R_TEST_RESULT_OK:
			printf (Color_GREEN "[OK]" Color_RESET);
			break;
		case R2R_TEST_RESULT_FAILED:
			printf (Color_RED "[XX]" Color_RESET);
			break;
		case R2R_TEST_RESULT_BROKEN:
			printf (Color_BLUE "[BR]" Color_RESET);
			break;
		case R2R_TEST_RESULT_FIXED:
			printf (Color_CYAN "[FX]" Color_RESET);
			break;
		}
		if (result->timeout) {
			printf (Color_CYAN " TIMEOUT" Color_RESET);
		}
		printf (" %s " Color_YELLOW "%s" Color_RESET "\n", shortpath (result->test->path), name);
		if (result->result == R2R_TEST_RESULT_FAILED || (state->verbose && result->result == R2R_TEST_RESULT_BROKEN)) {
			print_result_diff (&state->run_config, result);
		}
		free (name);
	}
}

static void print_state(R2RState *state, ut64 prev_completed) {
#if R2__WINDOWS__
	setvbuf (stdout, NULL, _IOFBF, 8192);
#endif
	/* Always print new failing results; in quiet mode skip summary/status line */
	print_new_results (state, prev_completed);
	if (state->quiet) {
		return;
	}

	/* [x/x] OK  42 BR  0 ... */
	printf (R_CONS_CLEAR_LINE);
	const ut64 a = RVecR2RTestResultInfoPtr_length (&state->results);
	const ut64 b = RVecR2RTestPtr_length (&state->db->tests);
	int w = printf ("[%" PFMT64u "/%" PFMT64u "]", a, b);
	while (w >= 0 && w < 20) {
		printf (" ");
		w++;
	}
	printf (" ");
	print_state_counts (state);
	fflush (stdout);
#if R2__WINDOWS__
	setvbuf (stdout, NULL, _IONBF, 0);
#endif
}

static void print_log(R2RState *state, ut64 prev_completed, ut64 prev_paths_completed) {
	/* Always print new failing results; in quiet mode skip per-path summaries */
	print_new_results (state, prev_completed);
	if (state->quiet) {
		return;
	}
	ut64 paths_completed = RVecConstCharPtr_length (&state->completed_paths);
	for (; prev_paths_completed < paths_completed; prev_paths_completed++) {
		const char *testpath = *RVecConstCharPtr_at (&state->completed_paths, prev_paths_completed);
		printf ("[%" PFMT64u "/%" PFMT64u "] %30s ", paths_completed, state->total_paths, shortpath (testpath));
		print_state_counts (state);
		printf ("\n");
	}
}

static void r2r_print_summary(R2RState *state, ut64 time_start) {
	printf ("\n");
	ut64 seconds = (r_time_now_mono () - time_start) / 1000000;
	printf ("Finished in");
	if (seconds > 60) {
		ut64 minutes = seconds / 60;
		printf (" %" PFMT64d " minutes and", minutes);
		seconds -= (minutes * 60);
	}
	printf (" %" PFMT64d " seconds.\n", seconds % 60);
}

static void r2r_write_output(R2RState *state, const char *output_file) {
	pj_end (state->test_results);
	if (r_file_exists (output_file)) {
		R_LOG_WARN ("Overwrite output file '%s'", output_file);
	}
	char *results = pj_drain (state->test_results);
	char *output = r_str_newf ("%s\n", results);
	free (results);
	if (!r_file_dump (output_file, (ut8 *)output, strlen (output), false)) {
		R_LOG_ERROR ("Cannot write to %s", output_file);
	}
	free (output);
	state->test_results = NULL;
}

static void flush_partial_json(int sig) {
	R2RState *state = Gstate;
	const char *output_file = Goutput_file;
	if (state && output_file && state->test_results) {
		r2r_write_output (state, output_file);
	}
	r_sys_exit (1, true);
}

static RThreadFunctionRet worker_th(RThread *th) {
	R2RState *state = th->user;
	r_th_lock_enter (state->lock);
	while (true) {
		if (RVecR2RTestPtr_empty (&state->queue)) {
			break;
		}
		R2RTest **test_it = RVecR2RTestPtr_last (&state->queue);
		R2RTest *test = test_it? *test_it: NULL;
		RVecR2RTestPtr_pop_back (&state->queue);
		r_th_lock_leave (state->lock);
		R2RRunConfig *cfg = &state->run_config;

		R2RTestResultInfo *result = NULL;
		bool mustrun = true;
		if (cfg->shallow > 0) {
			// randomly skip
			int rn = r_num_rand (100);
			if (rn < cfg->shallow) {
				mustrun = false;
			}
		}
		if (mustrun) {
			result = r2r_run_test (cfg, test);
		} else {
			result = R_NEW0 (R2RTestResultInfo);
			result->test = test;
			result->result = R2R_TEST_RESULT_OK;
			result->run_skipped = true;
		}
		r_th_lock_enter (state->lock);
		RVecR2RTestResultInfoPtr_push_back (&state->results, &result);

		if (result->run_skipped) {
			state->sk_count++;
		} else {
			state->counters[result->result]++;
		}
		if (test && state->path_left) {
			ut64 *count = ht_pp_find (state->path_left, test->path, NULL);
			if (count) {
				(*count)--;
				if (!*count) {
					const char *path = test->path;
					RVecConstCharPtr_push_back (&state->completed_paths, &path);
				}
			}
		}
		r_th_cond_signal (state->cond);
	}
	r_th_lock_leave (state->lock);
	r_log_fini ();
	return R_TH_STOP;
}

static bool r2r_run_workers(R2RState *state, R2ROptions *opt) {
	r_th_lock_enter (state->lock);

	RVecRThreadPtr workers;
	RVecRThreadPtr_init (&workers);

	int i;
	for (i = 0; i < opt->workers_count; i++) {
		RThread *th = r_th_new (worker_th, state, 0);
		if (th && r_th_start (th)) {
			RVecRThreadPtr_push_back (&workers, &th);
			continue;
		}
		r_th_free (th);
		R_LOG_ERROR ("Failed to setup thread");
		r_th_lock_leave (state->lock);
		RVecRThreadPtr_fini (&workers);
		return false;
	}

	ut64 prev_completed = UT64_MAX;
	ut64 prev_paths_completed = 0;
	while (true) {
		ut64 completed = RVecR2RTestResultInfoPtr_length (&state->results);
		if (opt->log_mode) {
			print_log (state, prev_completed, prev_paths_completed);
		} else if (completed != prev_completed) {
			print_state (state, prev_completed);
		}
		prev_completed = completed;
		prev_paths_completed = RVecConstCharPtr_length (&state->completed_paths);
		if (completed == RVecR2RTestPtr_length (&state->db->tests)) {
			break;
		}
		r_th_cond_wait (state->cond, state->lock);
	}

	r_th_lock_leave (state->lock);

	RThread **it;
	R_VEC_FOREACH (&workers, it) {
		RThread *th = *it;
		r_th_wait (th);
		r_th_free (th);
	}
	RVecRThreadPtr_fini (&workers);

	return true;
}

#include "interact.inc.c"

int main(int argc, char **argv) {
	int ret = 0;
#if R2__WINDOWS__
	UINT old_cp = GetConsoleOutputCP ();
	HANDLE streams[] = { GetStdHandle (STD_OUTPUT_HANDLE), GetStdHandle (STD_ERROR_HANDLE) };
	DWORD mode, mode_flags = ENABLE_PROCESSED_OUTPUT | ENABLE_VIRTUAL_TERMINAL_PROCESSING;
	int i;
	for (i = 0; i < R_ARRAY_SIZE (streams); i++) {
		GetConsoleMode (streams[i], &mode);
		SetConsoleMode (streams[i], mode | mode_flags);
	}
#endif
	R2ROptions opt = r2r_options_init ();
	R2RState state = { 0 };

	int arg_ind = r2r_parse_args (&opt, argc, argv);
	if (arg_ind < 0) {
		ret = arg_ind + 1; // when -1 return 0, when -2, return 1
		goto cleanup;
	}

	char *cwd = NULL;
	if (!r2r_setup_directory (&opt, arg_ind, argc, argv, &cwd)) {
		free (cwd);
		ret = -1;
		goto cleanup;
	}
	if (opt.fuzz_dir) {
		char *tmp = r_file_abspath_rel (cwd, opt.fuzz_dir);
		if (tmp) {
			free (opt.fuzz_dir);
			opt.fuzz_dir = tmp;
		}
	}
	if (opt.get_bins) {
		const char *cmd = r_file_is_directory ("bins")
			? "cd bins && git pull"
			: "git clone --depth 1 https://github.com/radareorg/radare2-testbins bins";
		r_sys_cmd (cmd);
	}

	r2r_setup_environment ();

	// state_init runs validate_suite() which calls r_sys_cmdf()
	// (libc system()). This must happen BEFORE subprocess_init()
	// installs the SIGCHLD handler, otherwise the sigchld reaper
	// thread races with system()'s internal waitpid() and can
	// steal the child exit status, making "r2 -v" appear to fail.
	if (!r2r_state_init (&state, &opt)) {
		free (cwd);
		ret = -1;
		goto cleanup;
	}

	if (!r2r_subprocess_init ()) {
		R_LOG_ERROR ("Subprocess init failed");
		free (cwd);
		ret = -1;
		goto cleanup;
	}
	atexit (r2r_subprocess_fini);

	int load_result = r2r_load_tests (&state, &opt, arg_ind, argc, argv, cwd);
	free (cwd);

	if (load_result < 0) {
		ret = -1;
		goto cleanup;
	}
	if (load_result > 0) {
		// Special exit (e.g., .c file handling returned a specific code)
		ret = (load_result == 1)? 0: load_result;
		goto cleanup;
	}

	ut64 loaded_tests = RVecR2RTestPtr_length (&state.db->tests);
	if (!state.quiet) {
		printf ("Loaded %" PFMT64u " tests.\n", loaded_tests);
	}
	if (opt.nothing) {
		ret = 0;
		goto cleanup;
	}
	RVecR2RTestPtr_append (&state.queue, &state.db->tests, NULL);
	if (opt.log_mode) {
		r2r_setup_log_mode (&state);
	}
	if (opt.output_file) {
		Gstate = &state;
		Goutput_file = opt.output_file;
#if R2__UNIX__
		r_sys_signal (SIGTERM, flush_partial_json);
		r_sys_signal (SIGINT, flush_partial_json);
#endif
	}
	ut64 time_start = r_time_now_mono ();
	if (!r2r_run_workers (&state, &opt)) {
		ret = -1;
		goto cleanup;
	}
	if (!state.quiet) {
		r2r_print_summary (&state, time_start);
	}
	if (opt.output_file) {
		r2r_write_output (&state, opt.output_file);
		Gstate = NULL;
	}
	if (opt.interactive) {
		interact (&state);
	}
	if (state.counters[R2R_TEST_RESULT_FAILED]) {
		ret = 1;
	}

cleanup:
	r2r_state_fini (&state);
	r2r_options_fini (&opt);
#if R2__WINDOWS__
	if (old_cp) {
		(void)SetConsoleOutputCP (old_cp);
		(void)r_sys_cmdf ("chcp %u > NUL", old_cp);
	}
#endif
	return ret;
}
