/*
 * Copyright 2015 (c) Anna Schumaker.
 */
#define _GNU_SOURCE
#include <core/date.h>
#include <tests/test.h>
#include <locale.h>
#include <time.h>

void test_date()
{
	time_t rawtime   = time(NULL);
	struct tm *today = localtime(&rawtime);
	struct date date = {
		.d_year  = 0,
		.d_month = 0,
		.d_day   = 0,
	};
	struct file f = FILE_INIT_DATA("", "date", 0);

	date_today(NULL);
	date_set(NULL, 0, 0, 0);
	data_file_open(&f, OPEN_WRITE);

	date_set(&date, 1988, 6, 17);
	g_assert_cmpuint(date.d_year,  ==, 1988);
	g_assert_cmpuint(date.d_month, ==,    6);
	g_assert_cmpuint(date.d_day,   ==,   17);
	g_assert_cmpuint(date.d_stamp, ==, 285607876);
	date_write(&f, &date);
	data_file_writef(&f, "\n");

	date_today(&date);
	g_assert_cmpuint(date.d_year,  ==, today->tm_year + 1900);
	g_assert_cmpuint(date.d_month, ==, today->tm_mon  +    1);
	g_assert_cmpuint(date.d_day,   ==, today->tm_mday);
	date_write(&f, &date);
	data_file_writef(&f, "\n");

	date_set(&date, 1992, 10, 05);
	g_assert_cmpuint(date.d_stamp, ==, 84543432);
	date_write_stamp(&f, &date);

	file_close(&f);
	file_open(&f, OPEN_READ);

	date_read(&f, &date);
	g_assert_cmpuint(date.d_year,  ==, 1988);
	g_assert_cmpuint(date.d_month, ==,    6);
	g_assert_cmpuint(date.d_day,   ==,   17);
	g_assert_cmpuint(date.d_stamp, ==, 285607876);

	g_assert_cmpstr_free(date_string(&date), ==, "06/17/88");

	date_read(&f, &date);
	g_assert_cmpuint(date.d_year,  ==, today->tm_year + 1900);
	g_assert_cmpuint(date.d_month, ==, today->tm_mon  +    1);
	g_assert_cmpuint(date.d_day,   ==, today->tm_mday);

	date_read_stamp(&f, &date);
	g_assert_cmpuint(date.d_year,  ==, 1992);
	g_assert_cmpuint(date.d_month, ==,   10);
	g_assert_cmpuint(date.d_day,   ==,    5);
	file_close(&f);
}

void test_compare()
{
	struct date a = {
		.d_year  = 2015,
		.d_month = 6,
		.d_day   = 17,
	};
	struct date b = {
		.d_year  = 2010,
		.d_month = 12,
		.d_day   = 10,
	};

	/* Check year comparison. */
	g_assert_cmpint(date_compare(&a, &b), ==,  5);
	g_assert_cmpint(date_compare(&b, &a), ==, -5);

	/* Check month comparison. */
	b.d_year = a.d_year;
	g_assert_cmpint(date_compare(&a, &b), ==, -6);
	g_assert_cmpint(date_compare(&b, &a), ==,  6);

	/* Check day comparison. */
	b.d_month = a.d_month;
	g_assert_cmpint(date_compare(&a, &a), ==,  0);
	g_assert_cmpint(date_compare(&a, &b), ==,  7);
	g_assert_cmpint(date_compare(&b, &a), ==, -7);
}

int main(int argc, char **argv)
{
	setlocale(LC_TIME, "C");

	g_test_init(&argc, &argv, NULL);
	g_test_add_func("/Core/Date", test_date);
	g_test_add_func("/Core/Date/Comparison", test_compare);
	return g_test_run();
}