fix(ical): fiabiliser le parsing Pronote 2026

Revue Codex validée. Corrections de parsing iCal, conservation du contexte des devoirs et fixtures anonymisées.

Co-authored-by: Codex <codex@antoineve.me>
Co-committed-by: Codex <codex@antoineve.me>

tests/unit/test_ical.py

@@ -294,8 +294,8 @@ def test_collect_homeworks_dedup() -> None:
         id="lesson2",
         start=datetime(2026, 9, 10, 10, 0),
         end=datetime(2026, 9, 10, 11, 0),
-        subject="Physique",
-        teachers=("M. Martin",),
+        subject="Math",
+        teachers=("M. Dupont",),
         rooms=("205",),
         group=None,
         status=LessonStatus.NORMAL,
@@ -343,8 +343,8 @@ def test_collect_homeworks_id_stability() -> None:
         id="lesson2",
         start=datetime(2026, 9, 10, 10, 0),
         end=datetime(2026, 9, 10, 11, 0),
-        subject="Physique",
-        teachers=("M. Martin",),
+        subject="Math",
+        teachers=("M. Dupont",),
         rooms=("205",),
         group=None,
         status=LessonStatus.NORMAL,
@@ -361,7 +361,117 @@ def test_collect_homeworks_id_stability() -> None:
 
     homeworks = collect_homeworks([lesson1, lesson2], target_date=date(2026, 9, 10))
     assert len(homeworks) == 1
-    assert homeworks[0].id == generate_homework_id(date(2026, 9, 10), "devoir commun")
+    assert homeworks[0].id == generate_homework_id(
+        date(2026, 9, 10), "devoir commun", "Math", ("M. Dupont",)
+    )
+
+
+def test_collect_homeworks_keeps_distinct_subjects() -> None:
+    """Deux matières différentes conservent deux devoirs homonymes.
+
+    :return: None
+    """
+    lesson = Lesson(
+        id="lesson1",
+        start=datetime(2026, 9, 10, 8, 0),
+        end=datetime(2026, 9, 10, 9, 0),
+        subject="Math",
+        teachers=("M. Dupont",),
+        group=None,
+        content=None,
+        homework_blocks=(
+            HomeworkBlock(
+                kind="due",
+                date=date(2026, 9, 10),
+                text="Devoir commun",
+                html="<p>Devoir commun</p>",
+            ),
+        ),
+    )
+    other_lesson = lesson.model_copy(
+        update={"id": "lesson2", "subject": "Physique", "teachers": ("M. Martin",)}
+    )
+
+    homeworks = collect_homeworks([lesson, other_lesson], target_date=date(2026, 9, 10))
+
+    assert len(homeworks) == 2
+    assert {homework.subject for homework in homeworks} == {"Math", "Physique"}
+
+
+def test_collect_homeworks_deduplicates_teacher_order_variants() -> None:
+    """Deux ordres d'enseignants équivalents ne créent pas de doublon.
+
+    :return: None
+    """
+    homework_block = HomeworkBlock(
+        kind="due",
+        date=date(2026, 9, 10),
+        text="Devoir commun",
+        html="<p>Devoir commun</p>",
+    )
+    lesson = Lesson(
+        id="lesson1",
+        start=datetime(2026, 9, 10, 8, 0),
+        end=datetime(2026, 9, 10, 9, 0),
+        subject="Math",
+        teachers=("M. Martin", "M. Dupont"),
+        group=None,
+        content=None,
+        homework_blocks=(homework_block,),
+    )
+    other_lesson = lesson.model_copy(
+        update={"id": "lesson2", "teachers": ("M. Dupont", "M. Martin")}
+    )
+
+    homeworks = collect_homeworks([lesson, other_lesson], target_date=date(2026, 9, 10))
+
+    assert len(homeworks) == 1
+
+
+def test_parse_body_accepts_html_variants_and_sanitizes() -> None:
+    """Les attributs HTML, les espaces et le contenu actif sont traités correctement.
+
+    :return: None
+    """
+    body = (
+        '<strong class="label"> Contenu pédagogique : </strong><p>Leçon &amp; exemple</p>'
+        '<strong data-kind="homework"> Pour le 10/09/2026 : </strong>'
+        '<p onclick="evil()">Lire <em>le chapitre</em></p><script>alert(1)</script>'
+        "<strong> Donné le 05/09/2026 : </strong><p>Noter &amp; relire</p>"
+    )
+
+    content, due_blocks, assigned_blocks = parse_body(body)
+
+    assert content == "Leçon & exemple"
+    assert due_blocks[0].date == date(2026, 9, 10)
+    assert due_blocks[0].text == "Lire le chapitre"
+    assert "<em>le chapitre</em>" in due_blocks[0].html
+    assert "onclick" not in due_blocks[0].html
+    assert "script" not in due_blocks[0].html.lower()
+    assert assigned_blocks[0].date == date(2026, 9, 5)
+
+
+def test_parse_anonymized_variants_fixture() -> None:
+    """Vérifie le corpus iCal anonymisé sur les statuts et le contexte des devoirs.
+
+    :return: None
+    """
+    fixture_path = Path(__file__).parent.parent / "fixtures" / "pronote-variants.ics"
+    lessons, _, school_events = parse_ical(fixture_path.read_text(encoding="utf-8"))
+
+    assert lessons[0].class_part == "Groupe 1"
+    assert lessons[0].homework_blocks[0].html == "<p>Lire le chapitre</p>"
+    assert any(lesson.status == LessonStatus.MOVED for lesson in lessons)
+    assert any(event.kind.value == "public_holiday" for event in school_events)
+    assert any(
+        event.from_date == date(2026, 10, 20) and event.to_date == date(2026, 10, 22)
+        for event in school_events
+    )
+
+    homeworks = collect_homeworks(lessons, target_date=date(2026, 9, 15))
+
+    assert len(homeworks) == 2
+    assert {homework.subject for homework in homeworks} == {"Mathématiques", "Sciences"}
 
 
 def test_collect_homeworks_sorted() -> None: