Implement a max spot age filter. Closes #18

server/webserver.py

@@ -1,12 +1,13 @@
 import json
 import logging
-from datetime import datetime
+from datetime import datetime, timedelta
 from threading import Thread
 
 import bottle
 import pytz
 from bottle import run, response
 
+from core.config import MAX_SPOT_AGE
 from core.constants import BANDS, ALL_MODES, MODE_TYPES, SIGS, SOURCES, CONTINENTS
 from core.utils import serialize_everything
 
@@ -100,6 +101,10 @@ class WebServer:
                 case "since":
                     since = datetime.fromtimestamp(int(query.get(k)), pytz.UTC)
                     spots = [s for s in spots if s.time > since]
+                case "max_age":
+                    max_age = int(query.get(k))
+                    since = datetime.now(pytz.UTC) - timedelta(seconds=max_age)
+                    spots = [s for s in spots if s.time > since]
                 case "received_since":
                     since = datetime.fromtimestamp(int(query.get(k)), pytz.UTC)
                     spots = [s for s in spots if s.received_time > since]
@@ -138,4 +143,5 @@ class WebServer:
                 "mode_types": MODE_TYPES,
                 "sigs": SIGS,
                 "sources": SOURCES,
-                "continents": CONTINENTS}
+                "continents": CONTINENTS,
+                "max_spot_age": MAX_SPOT_AGE}