Implement trading session management and add market time utilities

utils/market_time.py

@@ -0,0 +1,13 @@
+import time
+from config import MARKET_SESSION_SECONDS
+
+
+def get_period_elapsed_seconds():
+    ts = int(time.time())
+    period_start = (ts // MARKET_SESSION_SECONDS) * MARKET_SESSION_SECONDS
+    return ts - period_start
+
+
+def is_in_trading_window():
+    elapsed_seconds = get_period_elapsed_seconds()
+    return elapsed_seconds > MARKET_SESSION_SECONDS

utils/slug.py

@@ -1,9 +1,6 @@
 import pytz
 from datetime import datetime
-
-
-MARKET_INTERVAL_SECONDS = 900
-TIMEZONE = "US/Eastern"
+from config import MARKET_SESSION_SECONDS, TIMEZONE
 
 
 def get_market_slug(coin: str = "btc") -> str:
@@ -14,5 +11,5 @@ def get_market_slug(coin: str = "btc") -> str:
     et_tz = pytz.timezone(TIMEZONE)
     now = datetime.now(et_tz)
     ts = int(now.timestamp())
-    start = (ts // MARKET_INTERVAL_SECONDS) * MARKET_INTERVAL_SECONDS
+    start = (ts // MARKET_SESSION_SECONDS) * MARKET_SESSION_SECONDS
     return f"{coin.lower()}-updown-15m-{start}"