loader/aggregator added

scripts/preparetradecache.py

@@ -0,0 +1,47 @@
+from ttools.utils import zoneNY
+from datetime import timedelta, datetime
+from ttools.loaders import prepare_trade_cache
+import argparse
+
+"""
+Python script prepares trade cache for specified symbols and date range.
+
+Usually 1 day takes about 35s. It is stored in /tradescache/ directory as daily file keyed by symbol.
+
+To run this script in the background with specific arguments:
+
+```bash
+# Running without forcing remote fetch
+python3 prepare_cache.py --symbols BAC AAPL --day_start 2024-10-14 --day_stop 2024-10-18 &
+
+# Running with force_remote set to True
+python3 prepare_cache.py --symbols BAC AAPL --day_start 2024-10-14 --day_stop 2024-10-18 --force_remote &
+
+```
+"""
+def main(symbols, day_start, day_stop, force_remote=False):
+    # Convert day_start and day_stop to datetime objects in zoneNY
+    day_start = zoneNY.localize(datetime.strptime(day_start, "%Y-%m-%d") + timedelta(hours=9, minutes=45))
+    day_stop = zoneNY.localize(datetime.strptime(day_stop, "%Y-%m-%d") + timedelta(hours=15, minutes=1))
+    
+    prepare_trade_cache(symbols, day_start, day_stop, force_remote=force_remote)
+
+if __name__ == "__main__":
+    # Argument parser
+    parser = argparse.ArgumentParser(description="Prepare cache with trades for specified symbols and date range.")
+    parser.add_argument(
+        "-s", "--symbols", nargs="+", required=True, help="List of symbols to prepare cache for (e.g., BAC AAPL MSFT)"
+    )
+    parser.add_argument(
+        "-start", "--day_start", type=str, required=True, help="Start date in format YYYY-MM-DD"
+    )
+    parser.add_argument(
+        "-end", "--day_stop", type=str, required=True, help="End date in format YYYY-MM-DD"
+    )
+    parser.add_argument(
+        "-f", "--force_remote", action="store_true", help="Set this flag to force remote data fetch (default: False)"
+    )
+    args = parser.parse_args()
+
+    # Run main function with parsed arguments
+    main(args.symbols, args.day_start, args.day_stop, force_remote=args.force_remote)