from flask import jsonify, redirect, request, url_for
from werkzeug.wrappers import Response

import db
from core.flask_app import app


@app.route("/game/<slug>/variables/<int:var_id>/edit", methods=["POST"])
def global_var_edit(slug: str, var_id: int) -> Response:
    """Enregistrement en AJAX (voir static/js/scenes/global-variables.js) —
    demande explicite : modifier/supprimer une variable ne doit plus
    recharger toute la page. Redirection classique conservée en secours
    pour tout appelant non-JS (même patron que scene_object_add.py)."""
    var_type = request.form.get("type") or "texte"
    value = request.form.get("value") or ""
    screen_id = request.form.get("screen_id", type=int)
    db.update_global_variable(slug, var_id, var_type, value)
    if request.headers.get("X-Requested-With") == "fetch":
        return jsonify({"ok": True})
    if screen_id:
        return redirect(url_for("screen_edit", slug=slug, screen_id=screen_id, tab="variables"))
    return redirect(url_for("game_dashboard", slug=slug))