diff --git a/grepodata.py b/grepodata.py
index e4b5f3e..104f59b 100644
--- a/grepodata.py
+++ b/grepodata.py
@@ -1,9 +1,9 @@
 from flask import Flask, request, jsonify
 from flask_cors import CORS
 import json
-import os
 import re
-from datetime import datetime  # ✅ minimal timestamp support
+from datetime import datetime
+from goldeval import goldeval  # ⬅️ Add this at the top
 
 app = Flask(__name__)
 CORS(app)
@@ -25,6 +25,45 @@ def save_payload_as_player_file(payload):
         print(f"📝 Payload saved to {filename}")
     except Exception as e:
         print("❌ Failed to save payload:", e)
+    goldeval(filename)
+
+def append_prices_log(payload):
+    """Append resource prices and market title to prices.txt in CSV format with timestamp."""
+    try:
+        market = payload.get("gold_market")
+        title = payload.get("gold_market_title", "").strip()
+
+        # Skip if title is missing, empty, or placeholder
+        if not title or title.lower() in ["unknown title", "n/a", "null"]:
+            print("⏭️ Skipping log: Missing or placeholder title")
+            return
+
+        # Skip if market is missing
+        if not market:
+            print("⏭️ Skipping log: Missing market data")
+            return
+
+        # Extract and sanitize values
+        wood = market.get("wood", {}).get("current", "").replace(",", "")
+        stone = market.get("stone", {}).get("current", "").replace(",", "")
+        iron = market.get("iron", {}).get("current", "").replace(",", "")
+
+        # Skip if all values are missing or zero
+        if not wood or not stone or not iron or (wood == "0" and stone == "0" and iron == "0"):
+            print("⏭️ Skipping log: Market values are empty or zero")
+            return
+
+        timestamp = datetime.now().isoformat()
+        safe_title = title.replace('"', "'")
+
+        line = f'{timestamp},{wood},{stone},{iron},"{safe_title}"\n'
+
+        with open("prices.txt", "a", encoding="utf-8") as f:
+            f.write(line)
+
+        print("📈 Appended to prices.txt:", line.strip())
+    except Exception as log_err:
+        print("⚠️ Failed to log to prices.txt:", log_err)
 
 @app.route('/api/grepolis-data', methods=['POST'])
 def receive_data():
@@ -34,10 +73,11 @@ def receive_data():
         payload = request.get_json(force=True)
         print("✅ Parsed JSON:", payload)
 
-        # Inject server-side timestamp (system time)
+        # Inject server-side timestamp
         payload["server_received_at"] = datetime.now().isoformat()
 
         save_payload_as_player_file(payload)
+        append_prices_log(payload)
 
         return jsonify({
             "status": "success",
@@ -58,4 +98,4 @@ def handle_error(e):
     return jsonify({"error": str(e)}), 500
 
 if __name__ == '__main__':
-    app.run(host='0.0.0.0', port=5000)
\ No newline at end of file
+    app.run(host='0.0.0.0', port=5000)