Add scan directory to json config

src/openflexure_microscope_server/server/__init__.py

@@ -10,17 +10,33 @@ from .legacy_api import add_v2_endpoints
 from ..logging import configure_logging, retrieve_log, retrieve_log_from_file
 
 
-def customise_server(server: ThingServer, log_folder: str):
+def customise_server(server: ThingServer, log_folder: str, scans_folder: Optional[str]):
     """Customise the server with additional endpoints, etc."""
     configure_logging(log_folder)
     add_v2_endpoints(server)
-    add_static_files(server.app)
+    add_static_files(server.app, scans_folder)
 
     # Add an endpoint to get the logs - (directly calling the FastAPI decorator)
     server.app.get("/log/")(retrieve_log)
     server.app.get("/logfile/")(retrieve_log_from_file)
 
 
+def _get_scans_dir(config: dict) -> Optional[str]:
+    """
+    Read the config and return the scans directory.
+
+    Return is None if there is no /smart_scan/ thing loaded.
+    """
+
+    if "/smart_scan/" in config["things"]:
+        try:
+            return config["things"]["/smart_scan/"]["kwargs"]["scans_folder"]
+        except KeyError as e:
+            msg = "Configuration error smart scan should have scans_folder kwarg set"
+            raise RuntimeError(msg) from e
+    return None
+
+
 def serve_from_cli(argv: Optional[list[str]] = None):
     """Start the server from the command line"""
     args = cli.parse_args(argv)
@@ -32,8 +48,9 @@ def serve_from_cli(argv: Optional[list[str]] = None):
     try:
         config = cli.config_from_args(args)
         log_folder = config.get("log_folder", "./openflexure/logs")
+        scans_folder = _get_scans_dir(config)
         server = cli.server_from_config(config)
-        customise_server(server, log_folder)
+        customise_server(server, log_folder, scans_folder)
         uvicorn.run(
             server.app,
             host=args.host,