"""Tests offline des dataclasses cognition (Phase 2.1 + workpacks A/B).

Pas de runtime, pas de réseau. Sérialisation JSON + invariants.
"""

from __future__ import annotations

import json

import pytest

from core.cognition import (
    Precondition,
    PreconditionRecovery,
    SceneExpected,
    Trace,
)


# =============================================================================
# Trace
# =============================================================================


def test_trace_empty_default():
    t = Trace()
    assert t.is_empty()
    assert t.mandate_id == ""
    assert t.intention_id == ""
    assert t.level_of_delegation == 0


def test_trace_roundtrip_json():
    t = Trace(
        mandate_id="m1",
        intention_id="ouvrir_notepad",
        scene_id="bloc_notes_vierge",
        affordance_signature="btn:Enregistrer@SaveAs",
        expected_retour="dialog Enregistrer sous apparaît",
        level_of_delegation=2,
    )
    payload = json.dumps(t.to_dict())
    loaded = Trace.from_dict(json.loads(payload))
    assert loaded == t
    assert not loaded.is_empty()


def test_trace_from_dict_none_returns_empty():
    assert Trace.from_dict(None) == Trace()


def test_trace_from_dict_partial_tolerated():
    loaded = Trace.from_dict({"mandate_id": "m1"})
    assert loaded.mandate_id == "m1"
    assert loaded.intention_id == ""
    assert loaded.level_of_delegation == 0


def test_trace_from_dict_level_must_be_int_parseable():
    # Contrat documenté : from_dict tolère absent/None/0, pas une string non-int.
    # Le caller serveur est responsable de produire un int valide.
    with pytest.raises(ValueError):
        Trace.from_dict({"level_of_delegation": "not_a_number"})


# =============================================================================
# SceneExpected
# =============================================================================


def test_scene_expected_empty_default():
    s = SceneExpected()
    assert s.is_empty()
    assert s.monitor_index is None


def test_scene_expected_roundtrip_json():
    s = SceneExpected(
        scene_id="bloc_notes_editor",
        app_name="Notepad",
        title_patterns=("Sans titre", "Untitled"),
        title_anti=(".txt", ".md"),
        monitor_index=1,
        monitor_geometry=(0, 0, 1920, 1080),
        window_rect_hint=(100, 100, 1000, 800),
        scene_role="editor",
        required=True,
        stability_ms=200,
        accepted_transitions=("save_as_dialog", "confirm_save"),
    )
    payload = json.dumps(s.to_dict())
    loaded = SceneExpected.from_dict(json.loads(payload))
    assert loaded == s


def test_scene_expected_matches_title_anti_blocks():
    s = SceneExpected(
        app_name="Notepad",
        title_patterns=("Sans titre",),
        title_anti=(".txt",),
    )
    assert s.matches_title("Sans titre – Bloc-notes") is True
    assert s.matches_title("monfichier.txt – Bloc-notes") is False
    assert s.matches_title("Sans titre.txt") is False  # anti l'emporte


def test_scene_expected_matches_title_no_patterns_accepts_all_except_anti():
    s = SceneExpected(app_name="Notepad", title_anti=("Chrome",))
    assert s.matches_title("Bloc-notes") is True
    assert s.matches_title("Google Chrome") is False


def test_scene_expected_matches_title_empty_observed_false():
    s = SceneExpected(title_patterns=("Notepad",))
    assert s.matches_title("") is False


def test_scene_expected_from_dict_bad_geometry_falls_back_none():
    s = SceneExpected.from_dict({"monitor_geometry": [1, 2, 3]})  # pas 4 valeurs
    assert s.monitor_geometry is None


# =============================================================================
# Precondition
# =============================================================================


def test_precondition_noop_default():
    p = Precondition()
    assert p.is_noop()
    assert p.kind == "noop"


def test_precondition_invalid_kind_raises():
    with pytest.raises(ValueError):
        Precondition(kind="unknown_kind")


def test_precondition_window_title_check_must_contain():
    p = Precondition(
        kind="window_title",
        window_title_must_contain=("Sans titre", "Untitled"),
    )
    assert p.check_title("Sans titre – Bloc-notes") is True
    assert p.check_title("Untitled - Notepad") is True
    assert p.check_title("monfichier.txt – Bloc-notes") is False


def test_precondition_window_title_anti_blocks_even_if_must_present():
    p = Precondition(
        kind="window_title",
        window_title_must_contain=("Bloc-notes",),
        window_title_must_not_contain=(".txt",),
    )
    assert p.check_title("Sans titre – Bloc-notes") is True
    assert p.check_title("rapport.txt – Bloc-notes") is False


def test_precondition_check_title_noop_returns_true():
    """Précondition noop ne bloque jamais — comportement par défaut."""
    p = Precondition(kind="noop")
    assert p.check_title("n'importe quoi") is True


def test_precondition_roundtrip_json():
    p = Precondition(
        kind="window_title",
        window_title_must_contain=("Sans titre",),
        window_title_must_not_contain=(".txt",),
        critic_question="Le document est-il vide et non nommé ?",
        verify_timeout_ms=3000,
    )
    payload = json.dumps(p.to_dict())
    loaded = Precondition.from_dict(json.loads(payload))
    assert loaded == p


# =============================================================================
# PreconditionRecovery
# =============================================================================


def test_recovery_default_empty():
    r = PreconditionRecovery()
    assert r.is_empty()
    assert r.max_attempts == 1
    assert r.on_recovery_fail == "pause"


def test_recovery_invalid_fail_action_raises():
    with pytest.raises(ValueError):
        PreconditionRecovery(on_recovery_fail="continue_aveuglement")


def test_recovery_negative_attempts_raises():
    with pytest.raises(ValueError):
        PreconditionRecovery(max_attempts=-1)


def test_recovery_with_actions_serializable():
    r = PreconditionRecovery(
        max_attempts=1,
        on_recovery_fail="pause",
        actions=(
            {"type": "key_combo", "keys": ["ctrl", "n"]},
            {"type": "wait", "duration_ms": 500},
        ),
    )
    payload = json.dumps(r.to_dict())
    loaded = PreconditionRecovery.from_dict(json.loads(payload))
    assert loaded == r
    assert not loaded.is_empty()


def test_recovery_from_dict_filters_non_dict_actions():
    r = PreconditionRecovery.from_dict({
        "actions": [
            {"type": "key_combo"},
            "ignored_string",
            None,
            42,
            {"type": "wait"},
        ],
    })
    assert len(r.actions) == 2