from anki.hooks import wrap
from anki.sched import Scheduler
from aqt import mw
from aqt.utils import tooltip

threshold_interval = 7
threshold_field = u"Learned"
threshold_suspend_tag = u"suspendable"

def threshold(self, card, ease):
	f = card.note()

	if (card.ivl >= threshold_interval):
		if threshold_field in mw.col.models.fieldNames(f.model()) and not f[threshold_field]:
			f[threshold_field] = 'Yes'
		if f.hasTag(threshold_suspend_tag) and card.queue != -1:
			mw.col.sched.suspendCards([card.id])
			f.delTag(threshold_suspend_tag)

	f.flush()
	return True

Scheduler.answerCard = wrap(Scheduler.answerCard, threshold)