"""Vue de l'éditeur de scène 2D (routes/scenes/scene_edit_view.py) —
appelée par routes/screens/screen_edit.py, l'unique moteur d'écran
(jeu_2d)."""
import json
import re

import db
import screens


def _create_jeu2d_game(client, tmp_game_slug_cleanup, name="pytest_scene_edit"):
    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 test_jeu2d_game_dispatches_to_scene_editor(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    html = client.get(f"/game/{slug}/screens/{screen_id}/edit").get_data(as_text=True)
    assert "Objets de cette scène" in html
    assert "scene-editor.js" in html
    assert "Personnages" in html


def test_scene_edit_view_renders_with_a_personnage_object_selected(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    resp = client.post(
        f"/game/{slug}/screens/{screen_id}/scene-objects/add",
        data={"kind": "personnage", "forge_character": "zombie"},
        follow_redirects=False,
    )
    assert resp.status_code == 302
    obj_id = int(re.search(r"selected=(\d+)", resp.headers["Location"]).group(1))
    html = client.get(f"/game/{slug}/screens/{screen_id}/edit?selected={obj_id}").get_data(as_text=True)
    assert "/static/characters/zombie/idle.png" in html
    assert f'data-object-id="{obj_id}"' in html
    assert "Personnage Forge" in html


def test_scene_object_geometry_route_persists_pixels(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    obj_id = screens.add_scene_object(slug, screen_id)
    resp = client.post(
        f"/game/{slug}/scene-objects/{obj_id}/geometry",
        data=json.dumps({"x": 111, "y": 222, "width": 48, "height": 96}),
        content_type="application/json",
    )
    assert resp.status_code == 200
    obj = screens.get_scene_object(slug, obj_id)
    assert (obj["x"], obj["y"], obj["width"], obj["height"]) == (111, 222, 48, 96)


def test_scene_object_delete_route(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    obj_id = screens.add_scene_object(slug, screen_id)
    resp = client.post(f"/game/{slug}/scene-objects/{obj_id}/delete", follow_redirects=False)
    assert resp.status_code == 302
    assert screens.get_scene_object(slug, obj_id) is None


def test_flow_node_targets_scene_object(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    obj_id = screens.add_scene_object(slug, screen_id, forge_character="zombie")
    resp = client.post(
        f"/game/{slug}/screens/{screen_id}/flow/nodes/add",
        data=json.dumps({
            "node_type": "action", "action_type": "jouer_animation_sprite",
            "target_object_id": obj_id, "data_value": json.dumps({"animation": "walk", "fps": 8, "loop": True}),
        }),
        content_type="application/json",
    )
    assert resp.status_code == 200
    node_id = resp.get_json()["id"]
    node = screens.get_flow_node(slug, node_id)
    assert node["target_object_id"] == obj_id
    assert node["target_element_id"] is None


def test_held_key_trigger_persists_and_is_in_scene_palette(client, tmp_game_slug_cleanup):
    """Mouvement continu (touche maintenue) — répond au manque signalé par
    l'utilisateur : "clavier" (keydown) ne se déclenche qu'une fois par
    appui, insuffisant pour faire avancer un personnage en continu tant
    qu'une touche reste enfoncée. Voir runScreenHeldKeyTriggers()
    (static/js/play/triggers.js) et TRIGGER_EVENTS (screens/flow/constants.py)."""
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    assert "touche_maintenue" in dict(screens.TRIGGER_EVENTS_2D)
    assert "touche_relachee" in dict(screens.TRIGGER_EVENTS_2D)
    resp = client.post(
        f"/game/{slug}/screens/{screen_id}/flow/nodes/add",
        data=json.dumps({"node_type": "trigger", "trigger_event": "touche_maintenue", "trigger_key": "ArrowRight"}),
        content_type="application/json",
    )
    assert resp.status_code == 200
    node = screens.get_flow_node(slug, resp.get_json()["id"])
    assert node["trigger_event"] == "touche_maintenue"
    assert node["trigger_key"] == "ArrowRight"


def test_flow_node_collision_condition_targets_scene_objects(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    obj_a = screens.add_scene_object(slug, screen_id)
    obj_b = screens.add_scene_object(slug, screen_id, kind="decor")
    resp = client.post(
        f"/game/{slug}/screens/{screen_id}/flow/nodes/add",
        data=json.dumps({
            "node_type": "condition", "cond_source": "collision",
            "cond_element_a": obj_a, "cond_element_b": obj_b,
        }),
        content_type="application/json",
    )
    assert resp.status_code == 200
    node = screens.get_flow_node(slug, resp.get_json()["id"])
    assert node["cond_element_a"] == obj_a
    assert node["cond_element_b"] == obj_b


def test_play_payload_renders_scene_objects_for_jeu2d_game(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    screens.add_scene_object(slug, screen_id, forge_character="robot")
    payload = screens.full_game_payload(slug)
    scene_payload = next(s for s in payload["screens"] if s["id"] == screen_id)
    assert len(scene_payload["elements"]) == 1
    assert "/static/characters/robot/idle.png" in scene_payload["elements"][0]["rendered_html"]
    assert any(payload["personnage_animations"].values())


def test_play_html_renders_fixed_size_scene(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    screens.add_scene_object(slug, screen_id, forge_character="zombie")
    html = client.get(f"/game/{slug}/play").get_data(as_text=True)
    assert "playScene" in html
    assert "/static/characters/zombie/idle.png" in html
    assert f"width:{db.game_meta(slug)['name'] and 960}px" in html or "width:960px" in html


def test_render_scene_object_carries_data_anim_target(client, tmp_game_slug_cleanup):
    """Bug remonté par l'utilisateur : "les animations ne se jouent pas
    dans l'aperçu" — applyAnimationClip() (static/js/play/screens.js) et
    animation-timeline.js sélectionnent TOUJOURS leur cible via
    [data-anim-target=...], jamais data-element-id/data-object-id. Sans cet
    attribut sur l'objet de scène, AUCUN clip de Timeline (sprite, Animate.css
    ou personnalisé) ne trouvait jamais sa cible."""
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    obj_id = screens.add_scene_object(slug, screen_id)
    html = screens.render_scene_object(screens.get_scene_object(slug, obj_id))
    assert f'data-anim-target="{obj_id}"' in html


def test_animation_clip_add_route_accepts_a_scene_object(client, tmp_game_slug_cleanup):
    """Bug remonté par l'utilisateur : _animation_clips.element_id portait
    une VRAIE contrainte FK vers _screen_elements — poser un clip de
    Timeline sur un objet de scène (_scene_objects, un id space distinct)
    faisait échouer l'insertion avec "FOREIGN KEY constraint failed"."""
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    obj_id = screens.add_scene_object(slug, screen_id)
    resp = client.post(
        f"/game/{slug}/screens/{screen_id}/animations/clips/add",
        data=json.dumps({"element_id": obj_id, "kind": "animate_css", "animate_name": "fadeIn"}),
        content_type="application/json",
    )
    assert resp.status_code == 200
    clip = resp.get_json()
    assert clip["element_id"] == obj_id


def test_deleting_scene_object_cleans_up_its_animation_clips(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    obj_id = screens.add_scene_object(slug, screen_id)
    screens.add_animation_clip(slug, screen_id, obj_id, kind="animate_css", animate_name="fadeIn")
    screens.delete_scene_object(slug, obj_id)
    assert screens.list_animation_clips(slug, screen_id) == []


def test_scene_edit_view_world_matches_scene_when_no_oversized_fond(client, tmp_game_slug_cleanup):
    """Pas de "fond" plus grand que la scène -> le monde affiché reste
    exactement la scène nominale, et le repère "🎥 Champ de la caméra"
    (voir static/style.css .sceneCameraFrame) ne s'affiche pas — inutile
    tant que rien ne dépasse."""
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    html = client.get(f"/game/{slug}/screens/{screen_id}/edit").get_data(as_text=True)
    assert 'id="canvas" style="width:960px; height:540px;' in html
    assert "sceneCameraFrame" not in html
    # "Caméra (px)" : TOUJOURS modifiable, même sans fond qui dépasse
    # (demande explicite : "l'écran de l'éditeur a une taille fixe, la
    # caméra a la même taille, c'est tout" — un réglage direct, pas
    # seulement suggéré automatiquement).
    assert 'id="scene-camera-w" class="input is-small" style="width:80px;" min="1" value="960"' in html
    assert 'id="scene-camera-h" class="input is-small" style="width:80px;" min="1" value="540"' in html


def test_scene_edit_view_expands_world_for_an_oversized_fond(client, tmp_game_slug_cleanup):
    """Bug corrigé (glisser-déposer figé à (0,0) pour un objet plus grand
    que la scène, voir static/js/scenes/scene-editor.js) : le canevas de
    l'éditeur doit maintenant afficher tout le "fond", pas seulement la
    scène nominale (960×540) qu'il dépasse — sinon la partie qui dépasse
    resterait invisible/injoignable à la souris malgré le fix du glisser."""
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    fond_id = screens.add_scene_object(slug, screen_id, kind="fond")
    screens.update_scene_object_geometry(slug, fond_id, x=0, y=0, width=1920, height=1080)
    html = client.get(f"/game/{slug}/screens/{screen_id}/edit").get_data(as_text=True)
    assert 'id="canvas" style="width:1920px; height:1080px;' in html
    # Le repère de la caméra marque toujours les bornes de la scène NOMINALE (960×540),
    # même si le canevas affiché est désormais bien plus grand.
    assert 'class="sceneCameraFrame" style="width:960px; height:540px;' in html


def test_scene_edit_view_world_bounds_are_used_for_drag_clamping(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    fond_id = screens.add_scene_object(slug, screen_id, kind="fond")
    screens.update_scene_object_geometry(slug, fond_id, x=0, y=0, width=1920, height=1080)
    html = client.get(f"/game/{slug}/screens/{screen_id}/edit").get_data(as_text=True)
    assert "var SCENE_WIDTH = 1920;" in html
    assert "var SCENE_HEIGHT = 1080;" in html


def test_set_scene_size_updates_screen_dimensions(tmp_game_slug_cleanup):
    """"Caméra (px)" (voir templates/scene_edit.html) : jusqu'ici
    scene_width/scene_height n'étaient fixées qu'à la création de
    l'écran, jamais modifiables ensuite."""
    slug = tmp_game_slug_cleanup(db.create_game("pytest_scene_size"))
    screen_id = screens.create_screen(slug, "Scène 1", kind="jeu_2d")
    screens.set_scene_size(slug, screen_id, 1920, 1080)
    screen = screens.get_screen(slug, screen_id)
    assert screen["scene_width"] == 1920
    assert screen["scene_height"] == 1080


def test_screen_set_scene_size_route_persists_and_reflects_in_editor(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    resp = client.post(
        f"/game/{slug}/screens/{screen_id}/scene-size",
        data=json.dumps({"width": 1920, "height": 1080}), content_type="application/json",
    )
    assert resp.get_json() == {"ok": True}
    html = client.get(f"/game/{slug}/screens/{screen_id}/edit").get_data(as_text=True)
    assert 'id="canvas" style="width:1920px; height:1080px;' in html
    # La scène nominale == le monde désormais -> plus de repère caméra.
    assert "sceneCameraFrame" not in html
    # Les champs "Caméra (px)" restent TOUJOURS visibles (pas conditionnels),
    # pré-remplis avec la nouvelle taille.
    assert 'id="scene-camera-w" class="input is-small" style="width:80px;" min="1" value="1920"' in html
    assert 'id="scene-camera-h" class="input is-small" style="width:80px;" min="1" value="1080"' in html


def test_screen_set_scene_size_route_rejects_invalid_dimensions(client, tmp_game_slug_cleanup):
    slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
    resp = client.post(
        f"/game/{slug}/screens/{screen_id}/scene-size",
        data=json.dumps({"width": "oops", "height": 540}), content_type="application/json",
    )
    assert resp.status_code == 400