#19 - python

Author: duendeintemporal

Roadmap/duendeintemporal.py

@@ -0,0 +1,115 @@
+#19 { Retos para Programadores } ENUMERACIONES
+
+# Bibliography reference
+# Professional JavaScript for web developers by Matt Frisbie [Frisbie, Matt] (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:
+ * Empleando tu lenguaje, explora la definición del tipo de dato
+ * que sirva para definir enumeraciones (Enum).
+ * Crea un Enum que represente los días de la semana del lunes
+ * al domingo, en ese orden. Con ese enumerado, crea una operación
+ * que muestre el nombre del día de la semana dependiendo del número entero
+ * utilizado (del 1 al 7).
+ *
+ * DIFICULTAD EXTRA (opcional):
+ * Crea un pequeño sistema de gestión del estado de pedidos.
+ * Implementa una clase que defina un pedido con las siguientes características:
+ * - El pedido tiene un identificador y un estado.
+ * - El estado es un Enum con estos valores: PENDIENTE, ENVIADO, ENTREGADO y CANCELADO.
+ * - Implementa las funciones que sirvan para modificar el estado:
+ *   - Pedido enviado
+ *   - Pedido cancelado
+ *   - Pedido entregado
+ *   (Establece una lógica, por ejemplo, no se puede entregar si no se ha enviado, etc...)
+ * - Implementa una función para mostrar un texto descriptivo según el estado actual.
+ * - Crea diferentes pedidos y muestra cómo se interactúa con ellos. 
+
+"""
+
+# Function to simulate console.log
+log = print
+# Days of the week as a constant dictionary
+class DaysOfWeek:
+    MONDAY = 'Monday'
+    TUESDAY = 'Tuesday'
+    WEDNESDAY = 'Wednesday'
+    THURSDAY = 'Thursday'
+    FRIDAY = 'Friday'
+    SATURDAY = 'Saturday'
+    SUNDAY = 'Sunday'
+
+# Function to show the day based on input
+def show_day(day):
+    w_days = [DaysOfWeek.MONDAY, DaysOfWeek.TUESDAY, DaysOfWeek.WEDNESDAY,
+              DaysOfWeek.THURSDAY, DaysOfWeek.FRIDAY, DaysOfWeek.SATURDAY,
+              DaysOfWeek.SUNDAY]
+    return w_days[day - 1] if 1 <= day <= 7 else 'You entered an invalid day, try between 1 and 7'
+
+log(DaysOfWeek.MONDAY)  # Monday
+log(show_day(3))  # Wednesday
+
+# Extra Difficulty Exercise
+
+# Enum simulation
+class OrderStatus:
+    PENDING = 'Pending'
+    SHIPPED = 'Shipped'
+    DELIVERED = 'Delivered'
+    CANCELED = 'Canceled'
+
+# Order class
+class Order:
+    def __init__(self, id):
+        self.id = id
+        self.state = OrderStatus.PENDING
+
+    def set_state(self, state):
+        self.state = getattr(OrderStatus, state)
+
+    def get_state(self):
+        return self.state
+
+    def ship_order(self):
+        if self.state.lower() == OrderStatus.PENDING.lower():
+            log('The order is Shipped')
+            self.set_state('SHIPPED')
+        else:
+            log(f'Cannot ship. Current state: {self.state}')
+
+    def deliver_order(self):
+        if self.state.lower() == OrderStatus.SHIPPED.lower():
+            log('The order is Delivered')
+            self.set_state('DELIVERED')
+        else:
+            log(f'Cannot deliver. The order state is: {self.state}')
+
+    def cancel_order(self):
+        if self.state.lower() == OrderStatus.DELIVERED.lower():
+            log('Cannot cancel. The order has already been delivered.')
+        log('The order is Canceled')
+        self.set_state('CANCELED')
+
+    def describe_order(self):
+        log(f'Order ID: {self.id}, Current State: {self.state}')
+
+# Creating order instances
+order15 = Order('001')
+order16 = Order('002')
+order17 = Order('003')
+
+order16.ship_order()  # The order is Shipped
+order15.deliver_order()  # Cannot deliver. The order state is: Pending
+order17.ship_order()  # The order is Shipped
+
+order16.deliver_order()  # The order is Delivered
+order15.ship_order()  # The order is Shipped
+order17.cancel_order()  # The order is Canceled
+
+log(order16.get_state())  # Delivered
+log(order15.get_state())  # Shipped
+log(order17.get_state())  # Canceled
+
+order16.ship_order()  # Cannot ship. Current state: Delivered