#include "../src/catalog.c"

#include "../src/testing.h"
#include "slurp.h"


static const char *const
FNAME = __FILE__ ".txt";

enum TEST_MSGCATALOG_ID {
	MSG_X_FIRST = 1,
	MSG_X_1,
	MSG_X_2,
	MSG_X_LAST,
	MSG_STANDALONE,
};

static const char *const
TEST_MSGS[] = {
	"",
	[MSG_X_FIRST]="First line\n",
	[MSG_X_1]="a second\n",
	[MSG_X_2]="a third\n",
	[MSG_X_LAST]="and the last one\n",
	[MSG_STANDALONE]="single line message\n",
	NULL
};

static int
test_i18n_init(void) {
	int rc = -1;

	test_start("i18n_init()");

	{
		testing("simple call without touching the environment");

		const int should_overwrite = 1;
		if (setenv(NLSPATH_KEY, "src/%N.en.cat", should_overwrite)) {
			logerr("setenv(\"%s\", \"src/%%N.en.cat\", 1): %s\n",
				NLSPATH_KEY, strerror(errno));
			goto out;
		}

		if (i18n_init()) {
			logerr("i18n_init()\n");
			goto out;
		}

		test_ok();
	}

	rc = 0;
out:
	if (i18n_destroy()) {
		logerr("i18n_destroy()\n");
		rc = -1;
	}
	return rc;
}

static int
test_s_print_msgs(void) {
	int rc = -1;

	test_start("s_print_msgs()");
	FILE *file = NULL;
	char *str = NULL;

	{
		testing("message in range");

		file = fopen(FNAME, "w");
		if (!file) {
			perror("fopen(FNAME, \"w\")");
			goto out;
		}

		if (s_print_msgs(TEST_MSGS, file, MSG_X_FIRST, MSG_X_LAST)) {
			logerr("print_msgs(TEST_MSGS, file, MSG_X_FIRST, MSG_X_LAST)\n");
			goto out;
		}

		const int ret = fclose(file);
		file = NULL;
		if (ret) {
			logerr("fclose(file): %s\n", strerror(errno));
			goto out;
		}

		if (slurp_for_tests(FNAME, &str)) {
			logerr("slurp_for_tests(FNAME, &str)\n");
			goto out;
		}

		const char *const expected =
			"First line\n"
			"a second\n"
			"a third\n"
			"and the last one\n"
			;

		assert(strcmp(expected, str) == 0);

		free(str);
		str = NULL;

		test_ok();
	}
	{
		testing("range begin and end is the same");

		file = fopen(FNAME, "w");
		if (!file) {
			logerr("fopen(FNAME, \"w\"): %s\n", strerror(errno));
			goto out;
		}

		if (s_print_msgs(TEST_MSGS, file, MSG_X_FIRST, MSG_X_FIRST)) {
			logerr("s_print_msgs(TEST_MSGS, file, MSG_X_FIRST, MSG_X_FIRST)\n");
			goto out;
		}

		const int ret = fclose(file);
		file = NULL;
		if (ret) {
			logerr("fclose(file): %s\n", strerror(errno));
			goto out;
		}

		if (slurp_for_tests(FNAME, &str)) {
			logerr("slurp_for_tests(FNAME, &str)\n");
			goto out;
		}

		const char *const expected =
			"First line\n";

		assert(strcmp(expected, str) == 0);

		free(str);
		str = NULL;

		test_ok();
	}

	rc = 0;
out:
	if (str) {
		free(str);
	}
	if (file) {
		if (fclose(file)) {
			logerr("fclose(file): %s\n", strerror(errno));
			rc = -1;
		}
	}
	return rc;
}

static int
test_s(void) {
	int rc = -1;

	test_start("_()");
	FILE *file = NULL;
	char *str = NULL;

	{
		testing("empty string");

		file = fopen(FNAME, "w");
		if (!file) {
			perror("fopen(FNAME, \"w\")");
			goto out;
		}

		// FIXME: implement correct test



		test_ok();
	}

	rc = 0;
out:
	if (str) {
		free(str);
	}
	if (file) {
		if (fclose(file)) {
			logerr("fclose(file): %s\n", strerror(errno));
			rc = -1;
		}
	}
	return rc;
}

static int
test_i18n_destroy(void) {
	int rc = -1;

	test_start("i18n_destroy()");

	{
		testing("simple call without init first");

		if (i18n_destroy()) {
			logerr("i18n_destroy()\n");
			goto out;
		}

		test_ok();
	}

	rc = 0;
out:
	return rc;
}

static int
test_s_print_msg(void) {
	int rc = -1;

	test_start("s_print_msg()");
	FILE *file = NULL;
	char *str = NULL;

	{
		testing("simple individual message");

		file = fopen(FNAME, "w");
		if (!file) {
			logerr("fopen(FNAME, \"w\"): %s\n");
			goto out;
		}

		if (s_print_msg(TEST_MSGS, file, MSG_STANDALONE)) {
			logerr("s_print_msg(TEST_MSGS, file, MSG_STANDALONE)\n");
			goto out;
		}

		const int ret = fclose(file);
		file = NULL;
		if (ret) {
			logerr("fopen(file): %s\n", strerror(errno));
			goto out;
		}

		if (slurp_for_tests(FNAME, &str)) {
			logerr("slurp_for_tests(FNAME, &str)\n");
			goto out;
		}

		const char *const expected =
			"single line message\n";

		assert(strcmp(expected, str) == 0);

		free(str);
		str = NULL;

		test_ok();
	}

	rc = 0;
out:
	if (str) {
		free(str);
	}
	if (file) {
		if (fclose(file)) {
			logerr("fclose(file): %s\n", strerror(errno));
			rc = -1;
		}
	}
	return rc;
}

int
main(void) {
	int rc = -1;

	if (test_i18n_init()) {
		logerr("test_i18n_init()\n");
		goto out;
	}

	if (test_i18n_destroy()) {
		logerr("test_i18n_destroy()\n");
		goto out;
	}

	if (test_s()) {
		logerr("test_s()\n");
		goto out;
	}

	if (test_s_print_msgs()) {
		logerr("test_s_print_msgs()\n");
		goto out;
	}

	if (test_s_print_msg()) {
		logerr("test_s_print_msg()\n");
		goto out;
	}

	rc = 0;
out:
	return !!rc;
}