"""gitea:Adriano/TieMeasureFlow#96 - l'immagine del task visione sta in fit, senza scorrimento.

Controllo sulle classi del template: pannello overflow-hidden, img/canvas
object-contain sovrapposti, nessun h-auto sull'immagine (era la causa dello scorrimento).
"""
from pathlib import Path

TEMPLATE = Path(__file__).resolve().parents[1] / "templates" / "measure" / "task_execute.html"


def _panel():
    src = TEMPLATE.read_text(encoding="utf-8")
    start = src.rindex("<div", 0, src.index('x-data="visionExecute()"'))
    end = src.index("MEASUREMENT TIMER BANNER")
    return src[start:end]


def _tag_with(panel, marker):
    # Il tag (aperto) che contiene il marker; i '>' dentro le virgolette (es. "=>") non lo chiudono.
    pos = panel.index(marker)
    i = panel.rindex("<", 0, pos)
    quote = None
    for j in range(i, len(panel)):
        c = panel[j]
        if quote:
            quote = None if c == quote else quote
        elif c in "\"'":
            quote = c
        elif c == ">":
            return panel[i:j + 1]
    raise AssertionError(marker)


def test_panel_does_not_scroll():
    tag = _tag_with(_panel(), 'x-data="visionExecute()"')
    assert "overflow-hidden" in tag and "min-h-0" in tag
    assert "overflow-auto" not in tag


def test_image_is_object_contain_without_h_auto():
    panel = _panel()
    img = _tag_with(panel, 'x-ref="img"')
    assert "object-contain" in img
    assert "h-auto" not in img
    canvas = _tag_with(panel, 'x-ref="overlay"')
    assert "object-contain" in canvas  # stesso fit dell'img: overlay allineato


def test_image_box_and_outcome_column_can_shrink():
    panel = _panel()
    box = _tag_with(panel, 'x-show="shownImage"')
    assert "flex-1" in box and "min-h-0" in box
    outcome = _tag_with(panel, 'x-show="result">')
    assert "overflow-y-auto" in outcome and "min-h-0" in outcome