05/31 Phase 2

scripts/fetch_fx_rate.py

@@ -0,0 +1,25 @@
+#!/usr/bin/env python3
+"""
+Cron script: fetch daily USD/VND exchange rate.
+Run by systemd timer pfm-fxrate.timer at 8AM daily.
+"""
+
+import sys
+import os
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+from app import create_app
+from app.services.fx_service import get_today_rate
+
+app = create_app()
+
+if __name__ == '__main__':
+    with app.app_context():
+        result = get_today_rate()
+        if result:
+            status = '(stale)' if result.get('is_stale') else ''
+            print(f"[fx_rate] 1 USD = {result['rate']:,.0f} VND "
+                  f"[{result['source']}] {result['date']} {status}")
+        else:
+            print("[fx_rate] Failed to fetch rate.")
+            sys.exit(1)