"""Éditeur de collision (onglet "🧩 Collision", voir
screens/rendering/collision_rules.py) : une règle "déclencheur (collision/
périmètre) -> action (quête/attaque/événement/interagir)" par carte
objet — toujours les AUTRES objets qui réagissent à la présence du
joueur, jamais l'inverse. static/js/scenes/collision-rules-editor.js
construit l'assistant "+ Action" ; ce fichier teste la couche serveur
(défauts, validation, exposition dans full_game_payload)."""
import re

import db
import screens


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


def _add_personnage(client, slug, screen_id, role=None):
    resp = client.post(f"/game/{slug}/screens/{screen_id}/scene-objects/add", data={"kind": "personnage"}, follow_redirects=False)
    assert resp.status_code == 302, resp.data
    obj_id = int(re.search(r"selected=(\d+)", resp.headers["Location"]).group(1))
    if role:
        client.post(f"/game/{slug}/scene-objects/{obj_id}/role", data=f'{{"role": "{role}"}}', content_type="application/json")
    return obj_id


def _add_custom_event(client, slug, name="NEED_HELP"):
    resp = client.post(f"/game/{slug}/events/new", data={"name": name}, follow_redirects=False)
    assert resp.status_code == 302, resp.data
    events = screens.list_custom_events(slug) if hasattr(screens, "list_custom_events") else __import__("db").list_custom_events(slug)
    return next(e["id"] for e in events if e["name"] == name)


def test_freshly_placed_object_has_no_collision_rules(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    enemy_id = _add_personnage(client, slug, screen_id, role="ennemie")
    obj = screens.get_scene_object(slug, enemy_id)
    assert screens.resolve_collision_rules(obj) == []


def test_rules_route_persists_a_collision_trigger_attack_action(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    enemy_id = _add_personnage(client, slug, screen_id, role="ennemie")

    resp = client.post(
        f"/game/{slug}/scene-objects/{enemy_id}/collision-rules",
        data='{"rules": [{"trigger": "collision", "action": {"type": "attaque"}}]}',
        content_type="application/json",
    )
    assert resp.status_code == 200
    assert resp.get_json()["rules"] == [{"trigger": "collision", "action": {"type": "attaque"}}]
    obj = screens.get_scene_object(slug, enemy_id)
    assert screens.resolve_collision_rules(obj) == [{"trigger": "collision", "action": {"type": "attaque"}}]


def test_rules_route_persists_a_perimeter_trigger_with_custom_radius(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    enemy_id = _add_personnage(client, slug, screen_id, role="ennemie")

    resp = client.post(
        f"/game/{slug}/scene-objects/{enemy_id}/collision-rules",
        data='{"rules": [{"trigger": "perimetre", "perimetre_px": 40, "action": {"type": "attaque"}}]}',
        content_type="application/json",
    )
    rules = resp.get_json()["rules"]
    assert rules == [{"trigger": "perimetre", "perimetre_px": 40.0, "action": {"type": "attaque"}}]


def test_rules_route_persists_a_quest_action_referencing_a_quest_id(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    pnj_id = _add_personnage(client, slug, screen_id, role="pnj")
    quest = db.create_quest(slug, "Trouver la clé")

    resp = client.post(
        f"/game/{slug}/scene-objects/{pnj_id}/collision-rules",
        data='{"rules": [{"trigger": "collision", "action": {"type": "quete", "quete_id": ' + str(quest["id"]) + '}}]}',
        content_type="application/json",
    )
    assert resp.get_json()["rules"] == [{"trigger": "collision", "action": {"type": "quete", "quete_id": quest["id"]}}]


def test_rules_route_persists_an_interagir_action_with_one_level_of_nesting(client, tmp_game_slug_cleanup):
    """"interagir" affiche "Appuie sur [touche]" puis exécute une SOUS-action
    à l'appui — un seul niveau d'imbrication autorisé (voir
    screens/rendering/collision_rules.py::_MAX_ACTION_DEPTH)."""
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    pnj_id = _add_personnage(client, slug, screen_id, role="pnj")

    resp = client.post(
        f"/game/{slug}/scene-objects/{pnj_id}/collision-rules",
        data='{"rules": [{"trigger": "collision", "action": {"type": "interagir", "sub_action": {"type": "quete", "quete_id": 1}}}]}',
        content_type="application/json",
    )
    assert resp.get_json()["rules"] == [
        {"trigger": "collision", "action": {"type": "interagir", "sub_action": {"type": "quete", "quete_id": 1}}},
    ]


def test_rules_route_rejects_interagir_nested_inside_interagir(client, tmp_game_slug_cleanup):
    """Une imbrication trop profonde (interagir -> interagir -> ...) est
    ignorée plutôt que d'accepter une structure sans fin postée à la main."""
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    pnj_id = _add_personnage(client, slug, screen_id, role="pnj")

    resp = client.post(
        f"/game/{slug}/scene-objects/{pnj_id}/collision-rules",
        data='{"rules": [{"trigger": "collision", "action": {"type": "interagir", "sub_action": {"type": "interagir", "sub_action": {"type": "attaque"}}}}]}',
        content_type="application/json",
    )
    assert resp.get_json()["rules"] == []  # la règle entière est rejetée


def test_rules_route_drops_malformed_rules(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    enemy_id = _add_personnage(client, slug, screen_id, role="ennemie")

    resp = client.post(
        f"/game/{slug}/scene-objects/{enemy_id}/collision-rules",
        data='{"rules": [{"trigger": "diagonale", "action": {"type": "attaque"}}, {"trigger": "collision", "action": {"type": "sorcellerie"}}, "pas un objet"]}',
        content_type="application/json",
    )
    assert resp.get_json()["rules"] == []


def test_rules_route_404s_for_missing_object(client, game):
    resp = client.post(f"/game/{game}/scene-objects/999999/collision-rules", data='{"rules": []}', content_type="application/json")
    assert resp.status_code == 404


def test_full_game_payload_excludes_the_player_and_fond_from_collision_rule_objects(client, tmp_game_slug_cleanup):
    """Toujours les AUTRES objets qui réagissent à la présence du joueur,
    jamais l'inverse — le joueur lui-même et un fond n'ont pas de champ
    "collision_rules" dans le payload."""
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    player_id = _add_personnage(client, slug, screen_id)  # rôle par défaut : joueur
    enemy_id = _add_personnage(client, slug, screen_id, role="ennemie")

    payload = screens.full_game_payload(slug)
    scene_screen = next(s for s in payload["screens"] if s["id"] == screen_id)
    player_payload = next(o for o in scene_screen["elements"] if o["id"] == player_id)
    enemy_payload = next(o for o in scene_screen["elements"] if o["id"] == enemy_id)
    assert "collision_rules" not in player_payload
    assert enemy_payload["collision_rules"] == []


def test_scene_edit_view_lists_eligible_objects_only(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    player_id = _add_personnage(client, slug, screen_id)  # rôle par défaut : joueur, exclu
    enemy_id = _add_personnage(client, slug, screen_id, role="ennemie")

    html = client.get(f"/game/{slug}/screens/{screen_id}/edit").get_data(as_text=True)
    idx = html.find("var COLLISION_RULE_OBJECTS")
    end = html.find(";", idx)
    snippet = html[idx:end]
    assert f'"id": {enemy_id}' in snippet
    assert f'"id": {player_id}' not in snippet