"""Déclencheurs D'ÉCRAN (voir game_engine/rendering/screen_triggers.py) : une
règle "déclencheur (affichage) -> action" posée sur un ÉCRAN plutôt que
sur un objet — SANS objet requis, pour de la narration/cinématique dès
l'affichage. Section "Déclencheurs de l'écran" de l'éditeur de scène."""

from collections.abc import Callable
from typing import Any

from flask.testing import FlaskClient

import game_engine


def _create_jeu2d_game(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str], name: str = "pytest_screen_triggers"
) -> Any:
    resp = client.post("/games/new", data={"name": name}, follow_redirects=False)
    slug = tmp_game_slug_cleanup(resp.headers["Location"].rstrip("/").split("/")[-1])
    screen_id = game_engine.create_screen(slug, "Scène 1", kind="jeu_2d")
    return slug, screen_id


def test_freshly_created_screen_has_no_screen_triggers(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    screen = game_engine.get_screen(slug, screen_id)
    assert game_engine.resolve_screen_triggers(screen) == []


def test_sanitize_screen_triggers_keeps_an_affichage_trigger() -> None:
    rules = game_engine.sanitize_screen_triggers(
        [
            {"trigger": "affichage", "action": {"type": "dialogue"}},
        ]
    )
    assert rules == [{"trigger": "affichage", "action": {"type": "dialogue"}}]


def test_sanitize_screen_triggers_rejects_triggers_not_allowed_at_screen_level() -> None:
    """Un déclencheur d'OBJET ("collision"/"clic"/"survol") n'a pas de
    sens sans objet — seul "affichage" est autorisé pour un déclencheur
    d'écran (voir TRIGGER_TYPES_SCREEN)."""
    rules = game_engine.sanitize_screen_triggers(
        [
            {"trigger": "collision", "action": {"type": "dialogue"}},
            {"trigger": "clic", "action": {"type": "dialogue"}},
            {"trigger": "survol", "action": {"type": "dialogue"}},
        ]
    )
    assert rules == []


def test_sanitize_screen_triggers_keeps_a_video_action() -> None:
    rules = game_engine.sanitize_screen_triggers(
        [
            {
                "trigger": "affichage",
                "action": {"type": "video", "asset_url": "/assets/1/intro.mp4", "mode": "plein_ecran"},
            }
        ]
    )
    assert rules == [
        {
            "trigger": "affichage",
            "action": {"type": "video", "asset_url": "/assets/1/intro.mp4", "mode": "plein_ecran"},
        }
    ]


def test_sanitize_screen_triggers_keeps_an_attendre_then_dialogue_chain() -> None:
    """Cas d'usage demandé : "à l'affichage de l'écran" -> attendre N
    secondes -> déclencher un dialogue."""
    rules = game_engine.sanitize_screen_triggers(
        [
            {
                "trigger": "affichage",
                "action": {
                    "type": "attendre",
                    "data_value": "3",
                    "then": {"type": "dialogue", "dialogue": {"id": "d_1", "lines": []}},
                },
            }
        ]
    )
    assert rules[0]["action"]["type"] == "attendre"
    assert rules[0]["action"]["then"]["type"] == "dialogue"


def test_set_screen_triggers_persists_and_resolve_reads_it_back(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    game_engine.set_screen_triggers(slug, screen_id, [{"trigger": "affichage", "action": {"type": "dialogue"}}])
    screen = game_engine.get_screen(slug, screen_id)
    assert game_engine.resolve_screen_triggers(screen) == [{"trigger": "affichage", "action": {"type": "dialogue"}}]


def test_screen_triggers_are_isolated_between_screens(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, screen_id_1 = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    screen_id_2 = game_engine.create_screen(slug, "Scène 2", kind="jeu_2d")
    game_engine.set_screen_triggers(slug, screen_id_1, [{"trigger": "affichage", "action": {"type": "dialogue"}}])
    screen_2 = game_engine.get_screen(slug, screen_id_2)
    assert game_engine.resolve_screen_triggers(screen_2) == []


def test_append_action_to_screen_trigger_attaches_a_leaf_at_the_end_of_the_chain(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    game_engine.set_screen_triggers(
        slug,
        screen_id,
        [
            {
                "trigger": "affichage",
                "action": {"type": "dialogue", "dialogue": {"id": "d_1", "lines": []}},
            }
        ],
    )
    ok = game_engine.append_action_to_screen_trigger(
        slug,
        screen_id,
        "d_1",
        {"type": "variable", "target_variable": "score", "data_operation": "incrementer", "data_value": "1"},
    )
    assert ok is True
    screen = game_engine.get_screen(slug, screen_id)
    rules = game_engine.resolve_screen_triggers(screen)
    assert rules[0]["action"]["then"]["type"] == "variable"


def test_append_action_to_screen_trigger_returns_false_for_an_unknown_screen(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, _ = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    assert game_engine.append_action_to_screen_trigger(slug, 999999, "d_1", {"type": "dialogue"}) is False


def test_full_game_payload_exposes_screen_triggers(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    game_engine.set_screen_triggers(slug, screen_id, [{"trigger": "affichage", "action": {"type": "dialogue"}}])
    payload = game_engine.full_game_payload(slug)
    scene_screen = next(s for s in payload["screens"] if s["id"] == screen_id)
    assert scene_screen["screen_triggers"] == [{"trigger": "affichage", "action": {"type": "dialogue"}}]


def test_screen_triggers_get_route_returns_the_saved_rules(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    game_engine.set_screen_triggers(slug, screen_id, [{"trigger": "affichage", "action": {"type": "dialogue"}}])
    resp = client.get(f"/game/{slug}/screens/{screen_id}/triggers")
    assert resp.status_code == 200
    assert resp.get_json() == [{"trigger": "affichage", "action": {"type": "dialogue"}}]


def test_screen_triggers_post_route_appends_a_rule(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    resp = client.post(
        f"/game/{slug}/screens/{screen_id}/triggers",
        json={"rule": {"trigger": "affichage", "action": {"type": "dialogue"}}},
    )
    assert resp.status_code == 200
    screen = game_engine.get_screen(slug, screen_id)
    assert game_engine.resolve_screen_triggers(screen) == [{"trigger": "affichage", "action": {"type": "dialogue"}}]


def test_screen_trigger_delete_one_route_removes_only_the_targeted_rule(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    game_engine.set_screen_triggers(
        slug,
        screen_id,
        [
            {"trigger": "affichage", "action": {"type": "dialogue"}},
            {"trigger": "affichage", "action": {"type": "son", "asset_url": "/assets/1/bip.mp3"}},
        ],
    )
    resp = client.delete(f"/game/{slug}/screens/{screen_id}/triggers/0")
    assert resp.status_code == 200
    screen = game_engine.get_screen(slug, screen_id)
    rules = game_engine.resolve_screen_triggers(screen)
    assert len(rules) == 1
    assert rules[0]["action"]["type"] == "son"


def test_screen_trigger_delete_one_route_404s_for_an_out_of_range_index(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    resp = client.delete(f"/game/{slug}/screens/{screen_id}/triggers/0")
    assert resp.status_code == 404


def test_screen_triggers_delete_route_clears_all_rules(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    game_engine.set_screen_triggers(slug, screen_id, [{"trigger": "affichage", "action": {"type": "dialogue"}}])
    resp = client.delete(f"/game/{slug}/screens/{screen_id}/triggers")
    assert resp.status_code == 200
    screen = game_engine.get_screen(slug, screen_id)
    assert game_engine.resolve_screen_triggers(screen) == []


def test_screen_triggers_get_route_backfills_and_persists_a_missing_leaf_id(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    game_engine.set_screen_triggers(
        slug,
        screen_id,
        [
            {
                "trigger": "affichage",
                "action": {
                    "type": "variable",
                    "target_variable": "score",
                    "data_operation": "incrementer",
                    "data_value": "1",
                },
            }
        ],
    )

    resp1 = client.get(f"/game/{slug}/screens/{screen_id}/triggers")
    leaf_id = resp1.get_json()[0]["action"]["id"]
    assert leaf_id

    resp2 = client.get(f"/game/{slug}/screens/{screen_id}/triggers")
    assert resp2.get_json()[0]["action"]["id"] == leaf_id  # stable

    append_resp = client.post(
        f"/game/{slug}/screens/{screen_id}/triggers/append-action",
        json={"after_id": leaf_id, "action": {"type": "dialogue", "dialogue": {"id": "d_1", "lines": []}}},
    )
    assert append_resp.status_code == 200


def test_screen_triggers_get_route_404s_for_an_unknown_screen(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, _ = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    resp = client.get(f"/game/{slug}/screens/999999/triggers")
    assert resp.status_code == 404


def test_screen_trigger_dialogue_update_route_edits_the_matching_dialogue(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    game_engine.set_screen_triggers(
        slug,
        screen_id,
        [
            {
                "trigger": "affichage",
                "action": {"type": "dialogue", "dialogue": {"id": "d_1", "lines": []}},
            }
        ],
    )
    resp = client.post(
        f"/game/{slug}/screens/{screen_id}/triggers/dialogue",
        json={"dialogue_id": "d_1", "lines": [{"speaker": "narrateur", "text": "Bienvenue !"}]},
    )
    assert resp.status_code == 200
    screen = game_engine.get_screen(slug, screen_id)
    rules = game_engine.resolve_screen_triggers(screen)
    assert rules[0]["action"]["dialogue"]["lines"] == [
        {"type": "dialogue", "speaker": "narrateur", "text": "Bienvenue !"}
    ]


def test_screen_trigger_remove_action_route_removes_the_whole_rule_when_it_is_the_only_leaf(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    game_engine.set_screen_triggers(
        slug,
        screen_id,
        [
            {
                "trigger": "affichage",
                "action": {"type": "dialogue", "dialogue": {"id": "d_1", "lines": []}},
            }
        ],
    )
    resp = client.delete(f"/game/{slug}/screens/{screen_id}/triggers/action/d_1")
    assert resp.status_code == 200
    screen = game_engine.get_screen(slug, screen_id)
    assert game_engine.resolve_screen_triggers(screen) == []


def test_screen_trigger_remove_action_route_404s_for_an_unknown_leaf_id(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    game_engine.set_screen_triggers(
        slug,
        screen_id,
        [
            {
                "trigger": "affichage",
                "action": {"type": "dialogue", "dialogue": {"id": "d_1", "lines": []}},
            }
        ],
    )
    resp = client.delete(f"/game/{slug}/screens/{screen_id}/triggers/action/d_absent")
    assert resp.status_code == 404


def test_screen_trigger_move_action_route_swaps_a_leaf_up_in_its_chain(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    game_engine.set_screen_triggers(
        slug,
        screen_id,
        [
            {
                "trigger": "affichage",
                "action": {
                    "type": "attendre",
                    "id": "a_1",
                    "data_value": "2",
                    "then": {"type": "dialogue", "dialogue": {"id": "d_1", "lines": []}},
                },
            }
        ],
    )
    resp = client.post(f"/game/{slug}/screens/{screen_id}/triggers/action/d_1/move", json={"direction": "up"})
    assert resp.status_code == 200
    screen = game_engine.get_screen(slug, screen_id)
    action = game_engine.resolve_screen_triggers(screen)[0]["action"]
    assert action["type"] == "dialogue"
    assert action["then"]["type"] == "attendre"


def test_screen_trigger_move_action_route_400s_for_an_invalid_direction(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    game_engine.set_screen_triggers(
        slug,
        screen_id,
        [
            {
                "trigger": "affichage",
                "action": {"type": "dialogue", "dialogue": {"id": "d_1", "lines": []}},
            }
        ],
    )
    resp = client.post(f"/game/{slug}/screens/{screen_id}/triggers/action/d_1/move", json={"direction": "sideways"})
    assert resp.status_code == 400


def test_screen_trigger_append_action_route_attaches_a_leaf(
    client: FlaskClient, tmp_game_slug_cleanup: Callable[[str], str]
) -> None:
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    game_engine.set_screen_triggers(
        slug,
        screen_id,
        [
            {
                "trigger": "affichage",
                "action": {"type": "dialogue", "dialogue": {"id": "d_1", "lines": []}},
            }
        ],
    )
    resp = client.post(
        f"/game/{slug}/screens/{screen_id}/triggers/append-action",
        json={"after_id": "d_1", "action": {"type": "son", "asset_url": "/assets/1/bip.mp3"}},
    )
    assert resp.status_code == 200
    screen = game_engine.get_screen(slug, screen_id)
    rules = game_engine.resolve_screen_triggers(screen)
    assert rules[0]["action"]["then"] == {"type": "son", "asset_url": "/assets/1/bip.mp3"}