#include <float.h>

#include "data_manager.h"
#include "test_runner.h"
#include "barometer.h"
#include "timer.h"
#include "unity.h"

static int mock_baro_called;

static void reset_mock_get_baro(void) {
	mock_baro_called = 0;
}

static float set_mock_get_baro(void) {
	mock_baro_called = 1;
	return 1.0;
};

static struct barometer mock_barometer = {
	.read_pressure = set_mock_get_baro,
};

/* Test the initial barometer "setting" just after init */
RUNNER_DECLARE_TEST(test_data_manager_init_setting)
{
	struct data_ctx ctx;
	struct timer timer;
	get_system_timer(&timer);
	data_manager_init(&ctx, &timer, &mock_barometer);
	/* FIXME kinda gross that this baro setting is hard-coded */
	TEST_ASSERT_FLOAT_WITHIN(FLT_EPSILON, 1013.25, ctx.setting);
}

/* Test that initialising the data manager triggers a read of the barometer */
RUNNER_DECLARE_TEST(test_data_manager_init_reads_barometer)
{
	struct data_ctx ctx;
	struct timer timer;
	get_system_timer(&timer);
	reset_mock_get_baro();
	data_manager_init(&ctx, &timer, &mock_barometer);
	TEST_ASSERT_EQUAL(1, mock_baro_called);
}

/* Test that re-initialising the data manager triggers a read of the
 * barometer. I.e. reading the baro is not sticky */
RUNNER_DECLARE_TEST(test_data_manager_reinit_reads_barometer)
{
	struct data_ctx ctx;
	struct timer timer;
	get_system_timer(&timer);
	/* initialise it once */
	data_manager_init(&ctx, &timer, &mock_barometer);
	reset_mock_get_baro();
	/* initialise it again */
	data_manager_init(&ctx, &timer, &mock_barometer);
	TEST_ASSERT_EQUAL(1, mock_baro_called);
}