/*   Unit Tests originally designed by Ccomp5950
 *
 *   Tests are created to prevent changes that would create bugs or change expected behaviour.
 *   For the most part I think any test can be created that doesn't require a client in a mob or require a game mode other then extended
 *
 *   The easiest way to make effective tests is to create a "template" if you intend to run the same test over and over and make your actual
 *   tests be a "child object" of those templates.  Be sure and name your templates with the word "template" somewhere in var/name.
 *
 *   The goal is to have all sorts of tests that run and to run them as quickly as possible.
 *
 *   Tests that require time to run we instead just check back on their results later instead of waiting around in a sleep(1) for each test.
 *   This allows us to finish unit testing quicker since we can start other tests while we're waiting on that one to finish.
 *
 *   An example of that is listed in mob_tests.dm with the human_breath test.  We spawn the mob in space and set the async flag to 1 so that we run the check later.
 *   After 10 life ticks for that mob we check it's oxyloss but while that is going on we've already ran other tests.
 *
 *   If your test requires a significant amount of time...cheat on the timers.  Either speed up the process/life runs or do as we did in the timers for the shuttle
 *   transfers in zas_tests.dm   we move a shuttle but instead of waiting 3 minutes we set the travel time to a very low number.
 *
 *   At the same time, Unit tests are intended to reflect standard usage so avoid changing to much about how stuff is processed.
 *
 *
 *   WRITE UNIT TEST TEMPLATES AS GENERIC AS POSSIBLE (makes for easy reusability)
 *
 */


var/all_unit_tests_passed = 1
var/unit_tests_failures = 0
var/total_unit_tests = 0

// For console out put in Linux/Bash makes the output green or red.
// Should probably only be used for unit tests/Travis since some special folks use winders to host servers.
var/ascii_esc = ascii2text(27)
var/ascii_red = "[ascii_esc]\[31m"
var/ascii_green = "[ascii_esc]\[32m"
var/ascii_yellow = "[ascii_esc]\[33m"
var/ascii_reset = "[ascii_esc]\[0m"


// We list these here so we can remove them from the for loop running this.
// Templates aren't intended to be ran but just serve as a way to create child objects of it with inheritable tests for quick test creation.

/datum/unit_test
	var/name = "template - should not be ran."
	var/disabled = 0        // If we want to keep a unit test in the codebase but not run it for some reason.
	var/async = 0           // If the check can be left to do it's own thing, you must define a check_result() proc if you use this.
	var/reported = 0	// If it's reported a success or failure.  Any tests that have not are assumed to be failures.
	var/why_disabled = "No reason set."   // If we disable a unit test we will display why so it reminds us to check back on it later.
	var/map_path // This should be the same as the path var on /datum/map - The unit test will only run for that map


/**
 * Log levels used to prettify correctly, only defined in this file (aka undef'd at the end)
 * Build unit test messages as per https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions, or for console output
 */
#define LOG_UNIT_TEST_DEBUG 7
#define LOG_UNIT_TEST_INFORMATION 6
#define LOG_UNIT_TEST_WARNING 4
#define LOG_UNIT_TEST_ERROR 3


/datum/unit_test/proc/log_unit_test(var/severity, var/message, var/filename, var/line, var/title)

	#if defined(MANUAL_UNIT_TEST)

	// We are manually running, write in a more sensible format
	switch(severity)
		if(LOG_UNIT_TEST_DEBUG)
			severity = "\[\[ DEBUG \]\] "
		if(LOG_UNIT_TEST_INFORMATION)
			severity = "[ascii_green] *** NOTICE *** [ascii_reset] "
		if(LOG_UNIT_TEST_WARNING)
			severity = "[ascii_yellow] === WARNING === [ascii_reset] "
		if(LOG_UNIT_TEST_ERROR)
			severity = "[ascii_red] !!! FAILURE !!! [ascii_reset] "
	#else

	// We are running off Travis, which means github (or someone fucked up very badly)

	// Spaces or lack thereof are significant here!
	switch(severity)
		if(LOG_UNIT_TEST_DEBUG)
			severity = "debug"
		if(LOG_UNIT_TEST_INFORMATION)
			severity = "notice "
		if(LOG_UNIT_TEST_WARNING)
			severity = "warning "
		if(LOG_UNIT_TEST_ERROR)
			severity = "error "

	// Of the #if defined(MANUAL_UNIT_TEST)
	#endif

	var/printstring = "::[severity]"

	if(title)
		printstring += " title=[title]"

	printstring += "::[message] → " + TEST_OUTPUT_U_CYAN("@@@[filename]:[line]")


	world.log <<  printstring


/datum/unit_test/proc/debug(var/message, var/file, var/line)
	log_unit_test(LOG_UNIT_TEST_DEBUG, message, file, line)

/datum/unit_test/proc/notice(var/message, var/file, var/line)
	log_unit_test(LOG_UNIT_TEST_INFORMATION, message, file, line)

/datum/unit_test/proc/warn(var/message, var/file, var/line)
	log_unit_test(LOG_UNIT_TEST_WARNING, message, file, line)

/datum/unit_test/proc/fail(var/message, var/file, var/line)
	all_unit_tests_passed = 0
	unit_tests_failures++
	reported = 1
	log_unit_test(LOG_UNIT_TEST_ERROR, message, file, line)
	return UNIT_TEST_FAILED

/datum/unit_test/proc/pass(var/message, var/file, var/line)
	reported = 1
	log_unit_test(LOG_UNIT_TEST_INFORMATION, "[ascii_green][message][ascii_reset]", file, line, title = "SUCCESS: [name]")
	return UNIT_TEST_PASSED


#undef LOG_UNIT_TEST_DEBUG
#undef LOG_UNIT_TEST_INFORMATION
#undef LOG_UNIT_TEST_WARNING
#undef LOG_UNIT_TEST_ERROR

/datum/unit_test/proc/start_test()
	fail("No test proc.")

/datum/unit_test/proc/check_result()
	fail("No check results proc")
	return 1


/proc/load_unit_test_changes()
/*
	//This takes about 60 seconds to run on Travis and is only used for the ZAS vacume check on The Asteroid.
	if(config.generate_asteroid != 1)
		log_unit_test("Overiding Configuration option for Asteroid Generation to ENABLED")
		config.generate_asteroid = 1	// The default map requires it, the example config doesn't have this enabled.
 */