/*
 * Copyright(c) 2014 Tim Ruehsen
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * This file is part of the test suite of libpsl.
 *
 * Test psl_registered_domain() for all entries in test_psl.dat
 *
 * Changelog
 * 26.03.2014  Tim Ruehsen  created
 *
 */

#if HAVE_CONFIG_H
# include <config.h>
#endif

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_ALLOCA_H
#	include <alloca.h>
#endif

#ifdef WITH_LIBICU
#	include <unicode/uversion.h>
#	include <unicode/ustring.h>
#endif

#include <libpsl.h>

static int
	ok,
	failed;

static void test(const psl_ctx_t *psl, const char *domain, const char *expected_result)
{
	const char *result;
	char *lower;

	/* our test data is fixed to UTF-8 (english), so provide it here */
	if (psl_str_to_utf8lower(domain, "utf-8", "en", &lower) == PSL_SUCCESS)
		domain = lower;

	result = psl_registrable_domain(psl, domain);

	if ((result && expected_result && !strcmp(result, expected_result)) || (!result && !expected_result)) {
		ok++;
	} else {
		failed++;
		printf("psl_registrable_domain(%s)=%s (expected %s)\n",
			   domain ? domain : "NULL", result ? result : "NULL", expected_result ? expected_result : "NULL");
	}

	free(lower);
}

static void test_psl(void)
{
	FILE *fp;
	const psl_ctx_t *psl;
	const char *p;
	char buf[256], domain[128], expected_regdom[128], semicolon[2];
	int er_is_null, d_is_null;

	psl = psl_builtin();

	printf("have %d suffixes and %d exceptions\n", psl_suffix_count(psl), psl_suffix_exception_count(psl));

	/* special check with NULL values */
	test(NULL, NULL, NULL);

	/* special check with NULL psl context */
	test(NULL, "www.example.com", NULL);

	/* special check with NULL psl context and TLD */
	test(NULL, "com", NULL);

	/* Norwegian with uppercase oe */
#ifdef WITH_LIBICU
	test(psl, "www.\303\230yer.no", "www.\303\270yer.no");
#endif

	/* Norwegian with lowercase oe */
	test(psl, "www.\303\270yer.no", "www.\303\270yer.no");

	/* special check with NULL psl context and TLD */
	test(psl, "whoever.forgot.his.name", "whoever.forgot.his.name");

	/* special check with NULL psl context and TLD */
	test(psl, "forgot.his.name", NULL);

	/* special check with NULL psl context and TLD */
	test(psl, "his.name", "his.name");

	if ((fp = fopen(PSL_TESTFILE, "r"))) {
		while ((fgets(buf, sizeof(buf), fp))) {
			/* advance over ASCII white space */
			for (p = buf; *p == ' ' || *p == '\t' || *p == '\r' || *p == '\n'; p++)
				;

			if (!*p || (*p == '/' && p[1] == '/'))
				continue; /* ignore comments and blank lines */

			er_is_null = 0;
			d_is_null = 0;

			if (sscanf(p, "checkPublicSuffix ( '%127[^']' , '%127[^']' ) %1[;]", domain, expected_regdom, semicolon) != 3) {
				if (sscanf(p, "checkPublicSuffix ( '%127[^']' , null ) %1[;]", domain, semicolon) == 2) {
					er_is_null = 1;
				} else if (sscanf(p, "checkPublicSuffix ( null , '%127[^']' ) %1[;]", expected_regdom, semicolon) == 2) {
					d_is_null = 1;
				} else if (sscanf(p, "checkPublicSuffix ( null , null ) %1[;]", semicolon) == 1) {
					d_is_null = 1;
					er_is_null = 1;
				} else {
					failed++;
					printf("Malformed line from '" PSL_TESTFILE "': %s", buf);
					continue;
				}
			}

			test(psl, d_is_null ? NULL : domain, er_is_null ? NULL : expected_regdom);
		}

		fclose(fp);
	} else {
		printf("Failed to open %s\n", PSL_TESTFILE);
		failed++;
	}
}

int main(int argc, const char * const *argv)
{
	/* if VALGRIND testing is enabled, we have to call ourselves with valgrind checking */
	if (argc == 1) {
		const char *valgrind = getenv("TESTS_VALGRIND");

		if (valgrind && *valgrind) {
			size_t cmdsize = strlen(valgrind) + strlen(argv[0]) + 32;
			char *cmd = alloca(cmdsize);

			snprintf(cmd, cmdsize, "TESTS_VALGRIND="" %s %s", valgrind, argv[0]);
			return system(cmd) != 0;
		}
	}

	test_psl();
	
	if (failed) {
		printf("Summary: %d out of %d tests failed\n", failed, ok + failed);
		return 1;
	}

	printf("Summary: All %d tests passed\n", ok + failed);
	return 0;
}