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app.py

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+import json
+import os
+from datetime import datetime
+from flask import Flask, render_template, request, jsonify
+
+# --- CONFIG ---
+PORT = int(os.environ.get("PORT", 7860))  # 🔑 HF uses 7860
+
+app = Flask(__name__, template_folder="templates")
+
+STATS_FILE = "data/trust_stats.json"
+
+
+@app.route("/")
+def index():
+    return render_template("index.html")
+
+
+@app.route("/save_trust", methods=["POST"])
+def save_trust():
+    data = request.json
+
+    record = {
+        "scenario_id": data["scenario_id"],
+        "trust_metrics": data["trust_metrics"],
+        "trust_score": data["trust_score"],
+        "comment": data["comment"],
+        "timestamp": datetime.now().isoformat()
+    }
+
+    os.makedirs(os.path.dirname(STATS_FILE), exist_ok=True)
+
+    if not os.path.exists(STATS_FILE):
+        with open(STATS_FILE, "w", encoding="utf-8") as f:
+            json.dump({"evaluations": []}, f, indent=2)
+
+    with open(STATS_FILE, "r+", encoding="utf-8") as f:
+        content = json.load(f)
+        content["evaluations"].append(record)
+        f.seek(0)
+        json.dump(content, f, indent=2, ensure_ascii=False)
+
+    return jsonify({"status": "ok"})
+
+
+if __name__ == "__main__":
+    print(f"🚀 Application lancée sur http://0.0.0.0:{PORT}")
+    app.run(
+        host="0.0.0.0",   # 🔑 required for Docker
+        port=PORT,        # 🔑 7860 for HF
+        debug=False,
+        use_reloader=False
+    )