Refresh space launches from cron because API is slow

Closes: #98

agenda/thespacedevs.py

@@ -10,6 +10,8 @@ import httpx
 Launch = dict[str, typing.Any]
 Summary = dict[str, typing.Any]
 
+ttl = 60 * 60 * 2  # two hours
+
 
 async def next_launch_api(rocket_dir: str, limit: int = 200) -> list[Launch]:
     """Get the next upcoming launches from the API."""
@@ -137,14 +139,16 @@ def summarize_launch(launch: Launch) -> Summary:
     }
 
 
-async def get_launches(rocket_dir: str, limit: int = 200) -> list[Summary]:
+async def get_launches(
+    rocket_dir: str, limit: int = 200, refresh: bool = False
+) -> list[Summary]:
     """Get rocket launches with caching."""
     now = datetime.now()
     existing = [x for x in (filename_timestamp(f) for f in os.listdir(rocket_dir)) if x]
 
     existing.sort(reverse=True)
 
-    if not existing or (now - existing[0][0]).seconds > 3600:  # one hour
+    if refresh or not existing or (now - existing[0][0]).seconds > ttl:
         try:
             return await next_launch_api(rocket_dir, limit=limit)
         except httpx.ReadTimeout: