# encoding: utf-8
# 2011 © Bruno Chareyre <bruno.chareyre@grenoble-inp.fr>
from __future__ import print_function
from past.builtins import execfile
import yade
import math
import os
import sys
import time
import datetime


class YadeCheckError(Exception):
	"""Use ``raise YadeCheckError("message") when check fails. Or throw any other python exception that seems suitable."""
	pass


scriptsToRun = os.listdir(checksPath)
failedScripts = list()
maxElapsedTime = 0

# some scripts are singleCore only because of required 100% reproducibility
singleCore = [
        'checkVTKRecorder.py', 'checkPotentialVTKRecorders.py', 'checkJCFpm.py', 'checkPolyhedraCrush.py', 'checkColliderCorrectness.py',
        'checkColliderConstantness.py'
]

# some scripts take longer than 30 seconds. Let's allow them, but only with yade --checkall
slowScripts = ['checkClumpHopper.py', 'checkMPISilo.py', 'colliderTorture.py']

# checkSpawn.py fails always for now, needs investigations
skipScripts = ['checkList.py']
# use this if you want to test only one script, it takes precedence over skipScripts.
onlyOneScript = []

mpiScripts = ['checkMPI.py', 'checkMPISilo.py', 'checkMPI4PYcomm.py']
# singleCore = singleCore + mpiScripts # ignore hybrid MPIxOMP


def acceptOMPIVersion():  # filter out specific distros for MPI checks
	# excludes ubuntu18, suze15, stretch (failed spawn with ompi v2)
	if not 'MPI' in yade.config.features:
		return False
	if yade.libVersions.getAllVersionsCpp()['mpi'][0][0] == 2:
		return False
	return True


if not acceptOMPIVersion():
	skipScripts = skipScripts + mpiScripts


def multiCore():  # multi core --check is running.
	return ((opts.threads != None and opts.threads != 1) or (opts.cores != None and opts.cores != '1'))


# function returns [ True / False , "reason for making decision to skip the script" ]
def mustCheck(sc):
	if (len(onlyOneScript) == 1):
		return [sc in onlyOneScript, "not in onlyOneScript"]
	if ((not opts.checkall) and (sc in slowScripts)):
		return [False, "in slowScripts"]
	if (multiCore()):
		return [(sc not in singleCore) and (sc not in skipScripts), "in singleCore or skipScripts"]
	return [sc not in skipScripts, "in skipScripts"]


for script in scriptsToRun:
	if (script[len(script) - 3:] == ".py" and mustCheck(script)[0]):
		print("###################################")
		print("running: ", script)
		try:
			t0 = time.time()
			execfile(checksPath + "/" + script)
			t1 = time.time()
			elapsedTime = t1 - t0
			maxElapsedTime = max(elapsedTime, maxElapsedTime)
			print(
			        "Status:\033[92m success\033[0m, time spent on this check:" + ("\033[92m " if elapsedTime < 30 else "\033[91m ") +
			        str(datetime.timedelta(seconds=elapsedTime)) + "\033[0m"
			)
			print("___________________________________")
		except Exception as e:
			failedScripts.append(script)
			print('\033[91m', script, " failure, caught exception ", e.__class__.__name__, ": ", e, '\033[0m')
		O.reset()
	elif (not mustCheck(script)[0]):
		print("###################################")
		print("Skipping %s, because it is \033[44m%s\033[0m." % (script, mustCheck(script)[1]))

if (maxElapsedTime > 30):
	print("\033[95mWARNING: some checks took longer than 30 seconds.\033[0m")
print("Most time spend on a single check: " + str(datetime.timedelta(seconds=maxElapsedTime)))

if (len(failedScripts) != 0):
	print('\033[91m', len(failedScripts), " tests are failed" + '\033[0m')
	for s in failedScripts:
		print("  " + s)
	sys.exit(1)
else:
	# https://misc.flogisoft.com/bash/tip_colors_and_formatting
	print('\033[92m' + "*** ALL CHECKS PASSED ***" + '\033[0m')
	sys.exit(0)
