#21 - python

Author: duendeintemporal

Roadmap/21 - CALLBACKS/python/duendeintemporal.py

@@ -0,0 +1,89 @@
+#21 { Retos para Programadores } CALLBACKS
+
+# Bibliography reference
+#Secrets of the JavaScript Ninja (John Resig, Bear Bibeault, Josip Maras) (z-lib.org)
+#Eloquent Javascript A Modern Introduction to Programming by Marijn Haverbeke (z-lib.org)
+#Python Notes for Professionals. 800+ pages of professional hints and tricks (GoalKicker.com) (Z-Library)
+# Additionally, I use GPT as a reference and sometimes to correct or generate proper comments.
+
+"""   
+* EJERCICIO:
+ * Explora el concepto de callback en tu lenguaje creando un ejemplo
+ * simple (a tu elección) que muestre su funcionamiento.
+ *
+ * DIFICULTAD EXTRA (opcional):
+ * Crea un simulador de pedidos de un restaurante utilizando callbacks.
+ * Estará formado por una función que procesa pedidos.
+ * Debe aceptar el nombre del plato, una callback de confirmación, una
+ * de listo y otra de entrega.
+ * - Debe imprimir un confirmación cuando empiece el procesamiento.
+ * - Debe simular un tiempo aleatorio entre 1 a 10 segundos entre
+ *   procesos.
+ * - Debe invocar a cada callback siguiendo un orden de procesado.
+ * - Debe notificar que el plato está listo o ha sido entregado.
+
+"""
+
+import random
+import threading
+
+# Function to simulate console.log
+log = print
+
+log('Retosparaprogramadores #21.')
+
+# Function to confirm an order
+def order_confirm(order, callback):
+    log(f'The order: {order} is confirmed. Tell you when it\'s ready.')
+    processing_time = random.randint(1, 10)  # Random processing time between 1 and 10 seconds
+    threading.Timer(processing_time, callback, args=[order]).start()
+
+# Function to indicate that the order is ready
+def order_ready(order, callback):
+    log(f'The order: {order} is ready. Waiting to deliver.')
+    delivery_time = random.randint(1, 10)  # Random delivery time between 1 and 10 seconds
+    threading.Timer(delivery_time, callback, args=[order]).start()
+
+# Function to deliver the order
+def order_deliver(order):
+    log(f'Order: {order} delivered.')
+
+# Function to make an order
+def make_order(list_order):
+    today_menu = ['pizza', 'hamburger', 'paella', 'arabian food', 'posole', 
+                  'pastel azteca', 'carbonara past', 'napolitana past', 'fish', 'beef']
+    
+    for order in list_order:
+        if any(elm.lower() == order.lower() for elm in today_menu):
+            order_confirm(order, lambda confirmed_order: order_ready(confirmed_order, order_deliver))
+        else:
+            log(f'The order: {order} is not in today\'s menu. Please choose another dish.')
+
+
+    
+order_list1 = ['pastiche', 'hamburger', 'pizza']
+order_list2 = ['arabian food', 'fish', 'pastel azteca']
+make_order(order_list1)
+make_order(order_list2)
+
+# Output Example:
+"""  
+Retosparaprogramadores #21.
+The order: pastiche is not in today's menu. Please choose another dish.
+The order: hamburger is confirmed. Tell you when it's ready.
+The order: pizza is confirmed. Tell you when it's ready.
+The order: arabian food is confirmed. Tell you when it's ready.
+The order: fish is confirmed. Tell you when it's ready.
+The order: pastel azteca is confirmed. Tell you when it's ready.
+The order: hamburger is ready. Waiting to deliver.
+The order: fish is ready. Waiting to deliver.
+Order: fish delivered.
+The order: arabian food is ready. Waiting to deliver.
+The order: pastel azteca is ready. Waiting to deliver.
+Order: hamburger delivered.
+The order: pizza is ready. Waiting to deliver.
+Order: pastel azteca delivered.
+Order: arabian food delivered.
+Order: pizza delivered.
+
+"""