# coding: utf-8

from tests.shared import assertException, getEmptyCol

def test_basic():
    deck = getEmptyCol()
    # we start with a standard deck
    assert len(deck.decks.decks) == 1
    # it should have an id of 1
    assert deck.decks.name(1)
    # create a new deck
    parentId = deck.decks.id("new deck")
    assert parentId
    assert len(deck.decks.decks) == 2
    # should get the same id
    assert deck.decks.id("new deck") == parentId
    # we start with the default deck selected
    assert deck.decks.selected() == 1
    assert deck.decks.active() == [1]
    # we can select a different deck
    deck.decks.select(parentId)
    assert deck.decks.selected() == parentId
    assert deck.decks.active() == [parentId]
    # let's create a child
    childId = deck.decks.id("new deck::child")
    # it should have been added to the active list
    assert deck.decks.selected() == parentId
    assert deck.decks.active() == [parentId, childId]
    # we can select the child individually too
    deck.decks.select(childId)
    assert deck.decks.selected() == childId
    assert deck.decks.active() == [childId]
    # parents with a different case should be handled correctly
    deck.decks.id("ONE")
    m = deck.models.current()
    m['did'] = deck.decks.id("one::two")
    deck.models.save(m)
    n = deck.newNote()
    n['Front'] = "abc"
    deck.addNote(n)
    # this will error if child and parent case don't match
    deck.sched.deckDueList()

def test_remove():
    deck = getEmptyCol()
    # create a new deck, and add a note/card to it
    g1 = deck.decks.id("g1")
    f = deck.newNote()
    f['Front'] = "1"
    f.model()['did'] = g1
    deck.addNote(f)
    c = f.cards()[0]
    assert c.did == g1
    # by default deleting the deck leaves the cards with an invalid did
    assert deck.cardCount() == 1
    deck.decks.rem(g1)
    assert deck.cardCount() == 1
    c.load()
    assert c.did == g1
    # but if we try to get it, we get the default
    assert deck.decks.name(c.did) == "[no deck]"
    # let's create another deck and explicitly set the card to it
    g2 = deck.decks.id("g2")
    c.did = g2; c.flush()
    # this time we'll delete the card/note too
    deck.decks.rem(g2, cardsToo=True)
    assert deck.cardCount() == 0
    assert deck.noteCount() == 0

def test_rename():
    d = getEmptyCol()
    id = d.decks.id("hello::world")
    # should be able to rename into a completely different branch, creating
    # parents as necessary
    d.decks.rename(d.decks.get(id), "foo::bar")
    assert "foo" in d.decks.allNames()
    assert "foo::bar" in d.decks.allNames()
    assert "hello::world" not in d.decks.allNames()
    # create another deck
    id = d.decks.id("tmp")
    # we can't rename it if it conflicts
    assertException(
        Exception, lambda: d.decks.rename(d.decks.get(id), "foo"))
    # when renaming, the children should be renamed too
    d.decks.id("one::two::three")
    id = d.decks.id("one")
    d.decks.rename(d.decks.get(id), "yo")
    for n in "yo", "yo::two", "yo::two::three":
        assert n in d.decks.allNames()

def test_renameForDragAndDrop():
    d = getEmptyCol()

    def deckNames():
        return [ name for name in sorted(d.decks.allNames()) if name != 'Default' ]

    languages_did = d.decks.id('Languages')
    chinese_did = d.decks.id('Chinese')
    hsk_did = d.decks.id('Chinese::HSK')

    # Renaming also renames children
    d.decks.renameForDragAndDrop(chinese_did, languages_did)
    assert deckNames() == [ 'Languages', 'Languages::Chinese', 'Languages::Chinese::HSK' ]

    # Dragging a deck onto itself is a no-op
    d.decks.renameForDragAndDrop(languages_did, languages_did)
    assert deckNames() == [ 'Languages', 'Languages::Chinese', 'Languages::Chinese::HSK' ]

    # Dragging a deck onto its parent is a no-op
    d.decks.renameForDragAndDrop(hsk_did, chinese_did)
    assert deckNames() == [ 'Languages', 'Languages::Chinese', 'Languages::Chinese::HSK' ]

    # Dragging a deck onto a descendant is a no-op
    d.decks.renameForDragAndDrop(languages_did, hsk_did)
    assert deckNames() == [ 'Languages', 'Languages::Chinese', 'Languages::Chinese::HSK' ]

    # Can drag a grandchild onto its grandparent.  It becomes a child
    d.decks.renameForDragAndDrop(hsk_did, languages_did)
    assert deckNames() == [ 'Languages', 'Languages::Chinese', 'Languages::HSK' ]

    # Can drag a deck onto its sibling
    d.decks.renameForDragAndDrop(hsk_did, chinese_did)
    assert deckNames() == [ 'Languages', 'Languages::Chinese', 'Languages::Chinese::HSK' ]

    # Can drag a deck back to the top level
    d.decks.renameForDragAndDrop(chinese_did, None)
    assert deckNames() == [ 'Chinese', 'Chinese::HSK', 'Languages' ]

    # Dragging a top level deck to the top level is a no-op
    d.decks.renameForDragAndDrop(chinese_did, None)
    assert deckNames() == [ 'Chinese', 'Chinese::HSK', 'Languages' ]

    # '' is a convenient alias for the top level DID
    d.decks.renameForDragAndDrop(hsk_did, '')
    assert deckNames() == [ 'Chinese', 'HSK', 'Languages' ]