# coding: utf-8

from anki.consts import *
from tests.shared import getEmptyDeck

def test_genCards():
    deck = getEmptyDeck()
    f = deck.newFact()
    f['Front'] = u'1'
    f['Back'] = u'2'
    deck.addFact(f)
    cards = deck.genCards(f, f.model().templates)
    assert len(cards) == 1
    assert cards[0].ord == 1
    assert deck.cardCount() == 2
    assert cards[0].due == f.id
    # should work on random mode too
    deck.qconf['newCardOrder'] = NEW_CARDS_RANDOM
    f = deck.newFact()
    f['Front'] = u'1'
    f['Back'] = u'2'
    deck.addFact(f)
    cards = deck.genCards(f, f.model().templates)
    assert deck.cardCount() == 4
    c = deck.db.list("select due from cards where fid = ?", f.id)
    assert c[0] == c[1]

def test_previewCards():
    deck = getEmptyDeck()
    f = deck.newFact()
    f['Front'] = u'1'
    f['Back'] = u'2'
    # non-empty and active
    cards = deck.previewCards(f, 0)
    assert len(cards) == 1
    assert cards[0].ord == 0
    # all templates
    cards = deck.previewCards(f, 2)
    assert len(cards) == 2
    # add the fact, and test existing preview
    deck.addFact(f)
    cards = deck.previewCards(f, 1)
    assert len(cards) == 1
    assert cards[0].ord == 0
    # make sure we haven't accidentally added cards to the db
    assert deck.cardCount() == 1

def test_delete():
    deck = getEmptyDeck()
    f = deck.newFact()
    f['Front'] = u'1'
    f['Back'] = u'2'
    deck.addFact(f)
    cid = f.cards()[0].id
    # when the schema is dirty, deletion should be immediate
    assert deck.schemaDirty() == True
    deck.reset()
    deck.sched.answerCard(deck.sched.getCard(), 2)
    assert deck.db.scalar("select count() from revlog") == 1
    deck.delCard(cid)
    assert deck.cardCount() == 0
    assert deck.factCount() == 0
    assert deck.db.scalar("select count() from facts") == 0
    assert deck.db.scalar("select count() from cards") == 0
    assert deck.db.scalar("select count() from fsums") == 0
    assert deck.db.scalar("select count() from revlog") == 0
    # add the fact back
    deck.addFact(f)
    assert deck.cardCount() == 1
    # mark the schema as clean
    deck.lastSync = deck.scm + 1
    # cards/facts should go in the deletion log instead
    cid = f.cards()[0].id
    deck.delCard(cid)
    assert deck.cardCount() == 0
    assert deck.factCount() == 0
    assert deck.db.scalar("select count() from facts") == 1
    assert deck.db.scalar("select count() from cards") == 1
    assert deck.db.scalar("select 1 from cards where crt = 0") == 1
    assert deck.db.scalar("select 1 from facts where crt = 0") == 1
    assert deck.db.scalar("select queue from cards") == -4
    # modifying the schema should empty the trash
    deck.modSchema()
    assert deck.cardCount() == 0
    assert deck.factCount() == 0
    assert deck.db.scalar("select count() from facts") == 0
    assert deck.db.scalar("select count() from cards") == 0