Add indicators fetcher, rich dashboard renderer, and remove trade executor/status

indicators_fetcher.py

@@ -0,0 +1,86 @@
+"""
+Indicators Data Fetcher
+
+A standalone process that runs in a loop to compute financial indicators
+(ratios, prices, MAs, RSI, custom) from SQLite candle data and save
+the results to a JSON status file for the main dashboard to display.
+
+Follows the same pattern as dashboard_data_fetcher.py.
+"""
+
+import logging
+import os
+import sys
+import json
+import time
+import argparse
+from datetime import datetime, timezone
+
+from logging_utils import setup_logging
+from indicators import IndicatorCalculator
+
+
+class IndicatorsFetcher:
+    """
+    Periodically computes all configured indicators and saves them to a JSON file.
+    """
+
+    def __init__(self, log_level: str):
+        setup_logging(log_level, 'IndicatorsFetcher')
+
+        project_root = os.path.dirname(os.path.abspath(__file__))
+        self.db_path = os.path.join(project_root, "_data", "market_data.db")
+        self.config_path = os.path.join(project_root, "_data", "indicators.json")
+        self.status_file_path = os.path.join(project_root, "_logs", "indicators_status.json")
+
+        self.calculator = IndicatorCalculator(
+            config_path=self.config_path,
+            db_path=self.db_path
+        )
+
+        logging.info(f"Indicators Fetcher initialized. DB: {self.db_path}, Config: {self.config_path}")
+
+    def fetch_and_save_indicators(self):
+        """Compute all indicators and save to JSON status file."""
+        try:
+            results = self.calculator.calculate_all()
+
+            status = {
+                "last_updated_utc": datetime.now(timezone.utc).isoformat(),
+                "indicators": results
+            }
+
+            logs_dir = os.path.dirname(self.status_file_path)
+            os.makedirs(logs_dir, exist_ok=True)
+
+            temp_file_path = self.status_file_path + ".tmp"
+            with open(temp_file_path, 'w', encoding='utf-8') as f:
+                json.dump(status, f, indent=4, default=str)
+            os.replace(temp_file_path, self.status_file_path)
+
+            logging.debug(f"Successfully updated indicators status file with {len(results)} indicators.")
+
+        except Exception as e:
+            logging.error(f"Failed to fetch or save indicators: {e}", exc_info=True)
+
+    def run(self):
+        """Main loop to periodically compute and save indicators."""
+        logging.info("Starting Indicators Fetcher loop (update interval: 30s)")
+        while True:
+            try:
+                self.fetch_and_save_indicators()
+            except Exception as e:
+                logging.error(f"Indicators Fetcher loop error: {e}", exc_info=True)
+            time.sleep(30)
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="Run the Indicators Data Fetcher.")
+    parser.add_argument("--log-level", default="normal", choices=['off', 'normal', 'debug'])
+    args = parser.parse_args()
+
+    fetcher = IndicatorsFetcher(log_level=args.log_level)
+    try:
+        fetcher.run()
+    except KeyboardInterrupt:
+        logging.info("Indicators Data Fetcher stopped.")