Update raspberry pi class to print via the print queue

src/raspberry.py

@@ -1,3 +1,11 @@
+"""
+This class executes when we are on a raspberry Pi.
+
+It handles the press of a button via GPIO,
+activates a flash and prints out the picture
+that was taken via a USB Webcam.
+"""
+
 import io  # To check if we are on a Raspberry Pi
 import subprocess
 import os
@@ -5,6 +13,7 @@ from time import sleep, gmtime, strftime
 from flask_socketio import SocketIO
 from gpiozero import Button, LED, DigitalOutputDevice
 from PIL import Image
+from task import TextTask, ImageTask, CutTask
 
 class Raspberry():
     """
@@ -18,7 +27,7 @@ class Raspberry():
 
     def __init__(
         self,
-        printer,
+        print_queue,
         app,
         socketio,
         button_gpio_port_number,
@@ -26,7 +35,7 @@ class Raspberry():
         flash_gpio_port_number,
         is_flash_present,
     ):
-        self.printer = printer
+        self.print_queue = print_queue
         self.socketio = socketio
         self.app = app
 
@@ -37,9 +46,13 @@ class Raspberry():
         self.image_path = self.app.config["UPLOAD_FOLDER"] + "/image.jpg"
 
     def is_raspberry_pi(self, raise_on_errors=False):
+        """
+        Checking if we are on a Raspberry Pi by checking
+        information on the /proc/cpuinfo file
+        """
         # Check if we are running on a raspberry pi
         try:
-            with io.open("/proc/cpuinfo", "r") as cpuinfo:
+            with io.open("/proc/cpuinfo", "r", encoding="utf-8") as cpuinfo:
                 found = False
                 for line in cpuinfo:
                     if line.startswith("Hardware"):
@@ -140,7 +153,7 @@ class Raspberry():
                 f"Unable to take a picture. Error: {e.stderr.decode()}"
             )
             return False
-        except Exception as e:
+        except RuntimeError as e:
             # Catch any unexpected errors
             self.app.logger.error(f"Unexpected error while taking picture: {str(e)}")
             return False
@@ -197,7 +210,7 @@ class Raspberry():
                 output_path = image_path  # Overwrite the original image if no output path is given
             image.save(output_path)
 
-        except Exception as e:
+        except RuntimeError as e:
             self.app.logger.error(f"Error overlaying logo: {e}")
             return False
 
@@ -224,7 +237,7 @@ class Raspberry():
 
             image.save(output_path)
 
-        except Exception as e:
+        except RuntimeError as e:
             self.app.logger.error(f"Error cropping image to square: {e}")
             return False
 
@@ -241,7 +254,7 @@ class Raspberry():
         try:
             self.flash.on()
             self.take_picture()
-        except Exception as e:
+        except RuntimeError as e:
             self.app.logger.error(
                 "Could not take a picture after the button press : " + str(e)
             )
@@ -250,15 +263,11 @@ class Raspberry():
         self.app.logger.debug("Printing picture")
         self.led.on()
         self.crop_to_square(self.image_path)
-        self.printer.print_img("src/static/images/extase-club.png", process=True)
-        self.printer.print_img(self.image_path, process=True)
-        self.printer.print_sms("")
-        self.printer.print_sms("With Love From Société.Vide", signature="", bold=True)
-        self.printer.print_sms("Printed by LittlePrynter", signature="")
-        self.printer.print_sms("n07070.xyz", signature="")
-        self.printer.print_sms(strftime("%Y-%m-%d %H:%M", gmtime()), signature="")
-        self.printer.qr("https://n07070.xyz/articles/littleprynter")
-        self.printer.cut()
+        self.print_queue.enqueue(ImageTask(self.image_path,signature="",process=True))
+        self.print_queue.enqueue(TextTask(content="Imprimé par LittlePrynter", signature=""))
+        time = strftime("%Y-%m-%d %H:%M", gmtime())
+        self.print_queue.enqueue(TextTask(content=time, signature=""))
+        self.print_queue.enqueue(CutTask())
         self.led.off()
-        self.app.logger.debug("Done printing picture")
+        self.app.logger.debug("Added a photomaton picture to the print queue")
         return True