imager.py: fix indent

scripts/planktoscope/imager.py

@@ -130,7 +130,7 @@ class ImagerProcess(multiprocessing.Process):
     """This class contains the main definitions for the imager of the PlanktoScope"""
 
     @logger.catch
-    def __init__(self, stop_event, iso=100, shutter_speed=1):
+    def __init__(self, stop_event):
         """Initialize the Imager class
 
         Args:
@@ -179,6 +179,7 @@ class ImagerProcess(multiprocessing.Process):
             logger.exception(
                 f"An exception has occured when starting up raspimjpeg: {e}"
             )
+            logger.error("Shutting off the process now")
             exit(1)
 
         if self.__camera.sensor_name == "IMX219":  # Camera v2.1
@@ -191,14 +192,15 @@ class ImagerProcess(multiprocessing.Process):
                 f"The connected camera {self.__camera.sensor_name} is not recognized, please check your camera"
             )
 
-        self.__iso = iso
+        self.__iso = 0
-        self.__shutter_speed = shutter_speed
+        self.__shutter_speed = 100
-        self.__exposure_mode = "fixedfps"
+        self.__exposure_mode = "off"
         self.__white_balance = "off"
         self.__white_balance_gain = (
             configuration.get("wb_red_gain", 2.00) * 100,
             configuration.get("wb_blue_gain", 1.40) * 100,
         )
+        self.__image_gain = (100, 100)
 
         self.__base_path = "/home/pi/data/img"
         # Let's make sure the base path exists
@@ -261,6 +263,15 @@ class ImagerProcess(multiprocessing.Process):
                 "A timeout has occured when setting the white balance gain, trying again"
             )
             self.__camera.white_balance_gain = self.__white_balance_gain
+        time.sleep(0.1)
+
+        try:
+            self.__camera.image_gain = self.__image_gain
+        except TimeoutError as e:
+            logger.error(
+                "A timeout has occured when setting the image gain, trying again"
+            )
+            self.__camera.image_gain = self.__image_gain
 
         logger.success("planktoscope.imager is initialised and ready to go!")
 
@@ -465,6 +476,40 @@ class ImagerProcess(multiprocessing.Process):
                         f'{"status":"Error: White balance mode {self.__white_balance} is not valid"}',
                     )
                     return
+
+            if "image_gain" in settings:
+                if "analog" in settings["image_gain"]:
+                    logger.debug(
+                        f"Updating the camera analog gain to {settings['image_gain']}"
+                    )
+                    self.__image_gain = (
+                        settings["image_gain"].get("analog", self.__image_gain[0]),
+                        self.__image_gain[1],
+                    )
+                if "digital" in settings["image_gain"]:
+                    logger.debug(
+                        f"Updating the camera digital gain to {settings['image_gain']}"
+                    )
+                    self.__image_gain = (
+                        self.__image_gain[0],
+                        settings["image_gain"].get("digital", self.__image_gain[1]),
+                    )
+                logger.debug(f"Updating the camera image gain to {self.__image_gain}")
+                try:
+                    self.__camera.image_gain = self.__image_gain
+                except TimeoutError as e:
+                    logger.error(
+                        "A timeout has occured when setting the image gain, trying again"
+                    )
+                    self.__camera.image_gain = self.__image_gain
+                except ValueError as e:
+                    logger.error("The requested image gain is not valid!")
+                    self.imager_client.client.publish(
+                        "status/imager",
+                        '{"status":"Error: Chosen image gain is not valid"}',
+                    )
+                    return
+
             # Publish the status "Config updated" to via MQTT to Node-RED
             self.imager_client.client.publish(
                 "status/imager", '{"status":"Camera settings updated"}'
@@ -538,14 +583,14 @@ class ImagerProcess(multiprocessing.Process):
                     "action": "move",
                     "direction": self.__pump_direction,
                     "volume": self.__pump_volume,
-                    "flowrate": 2,
+                    "flowrate": 0.25,
                 }
             ),
         )
 
     def __state_imaging(self):
         # subscribe to status/pump
-        self.imager_client.client.subscribe("status/pump")
+        # self.imager_client.client.subscribe("status/pump")
 
         # Definition of the few important metadata
         local_metadata = {
@@ -606,7 +651,7 @@ class ImagerProcess(multiprocessing.Process):
         logger.info("Exporting the metadata to a metadata.json")
         metadata_filepath = os.path.join(self.__export_path, "metadata.json")
         with open(metadata_filepath, "w") as metadata_file:
-            json.dump(self.__global_metadata, metadata_file, indent="4")
+            json.dump(self.__global_metadata, metadata_file, indent=4)
             logger.debug(
                 f"Metadata dumped in {metadata_file} are {self.__global_metadata}"
             )
@@ -685,9 +730,9 @@ class ImagerProcess(multiprocessing.Process):
             planktoscope.light.ready()
         else:
             # We have not reached the final stage, let's keep imaging
-            self.imager_client.client.subscribe("status/pump")
+            # self.imager_client.client.subscribe("status/pump")
 
-            self.__pump_message()
+            # self.__pump_message()
 
             self.__imager.change(planktoscope.imager_state_machine.Waiting)
 
@@ -722,7 +767,11 @@ class ImagerProcess(multiprocessing.Process):
             self.__state_capture()
             return
 
-        elif self.__imager.state.name == ["waiting", "stop"]:
+        elif self.__imager.state.name == "waiting":
+            self.__imager.change(planktoscope.imager_state_machine.Capture)
+            return
+
+        elif self.__imager.state.name == "stop":
             return
 
     ################################################################################