"""Round 82: album art sits in the same panel, in the same place, as the
empty art panel: the cover changes what is inside the frame, never the
frame."""
from PyQt6.QtGui import QColor, QPixmap

from tests.test_round80 import _sidebar


def _show_art(qapp, art, color):
    pixmap = QPixmap(10, 10)
    pixmap.fill(QColor(color))
    art._pixmap = pixmap
    art._fit_height()
    qapp.processEvents()


def test_art_keeps_the_empty_panels_place_and_border(qapp, tmp_path):
    from lintunes.gui.sidebar import NO_ART_GAP
    window, sidebar = _sidebar(qapp, tmp_path)
    art = sidebar.art
    empty_geometry = art.geometry()
    empty = art.grab().toImage()
    _show_art(qapp, art, "white")
    assert art.parentWidget() is sidebar
    assert art.geometry() == empty_geometry
    assert art.height() == art.width() + NO_ART_GAP
    image = art.grab().toImage()
    middle = image.width() // 2
    # the gap and the panel's darker top edge, unchanged
    for y in range(NO_ART_GAP + 1):
        assert image.pixelColor(middle, y) == empty.pixelColor(middle, y)
    # ...and the cover just inside it
    assert image.pixelColor(middle, NO_ART_GAP + 2) == QColor("white")
    assert image.pixelColor(middle, image.height() // 2) == QColor("white")
    window.close()


def test_art_changes_no_layout(qapp, tmp_path):
    window, sidebar = _sidebar(qapp, tmp_path)
    list_geometry = sidebar.list_area.geometry()
    _show_art(qapp, sidebar.art, "red")
    sidebar.art.has_art_changed.emit(True)
    qapp.processEvents()
    assert sidebar.list_area.geometry() == list_geometry
    window.close()