Upload nocturnal (1).py

nocturnal (1).py

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+import os
+import json
+
+FILE_NAME = "tasks.json"
+tasks = []
+
+def load_tasks():
+    """Attempts to load tasks from the JSON file if it exists."""
+    global tasks
+    if os.path.exists(FILE_NAME):
+        try:
+            with open(FILE_NAME, 'r') as file:
+                tasks = json.load(file)
+            print(f"✅ Tasks successfully loaded from {FILE_NAME}.")
+        except Exception as e:
+            print(f"❌ Error loading tasks: {e}")
+            tasks = []
+    else:
+        print(f"📄 No previous task file ({FILE_NAME}) found. Starting with an empty list.")
+
+def save_tasks():
+    """Saves the current list of tasks to the JSON file."""
+    try:
+        with open(FILE_NAME, 'w') as file:
+            json.dump(tasks, file, indent=4)
+        print(f"✅ Tasks successfully saved to {FILE_NAME}.")
+    except Exception as e:
+        print(f"❌ Error saving tasks: {e}")
+
+def add_task(task_description):
+    """Adds a new task to the list with a 'completed' status."""
+    tasks.append({"task": task_description, "completed": False})
+    print(f"✨ Task added: '{task_description}'")
+
+def view_tasks():
+    """Displays all tasks with their index and status."""
+    if not tasks:
+        print("
+📝 Your To-Do List is empty. Time to add a task!")
+        return
+    print("
+--- Current To-Do List ---")
+    for index, task in enumerate(tasks, start=1):
+        status = "✅" if task["completed"] else "❌"
+        print(f"{index}. [{status}] {task['task']}")
+    print("--------------------------")
+
+def delete_task(task_number):
+    """Deletes a task based on its number (index + 1)."""
+    try:
+        task_index = int(task_number) - 1
+        if 0 <= task_index < len(tasks):
+            deleted_task = tasks.pop(task_index)
+            print(f"🗑️ Deleted task: '{deleted_task['task']}'")
+        else:
+            print("❌ Invalid task number. Please try again.")
+    except ValueError:
+        print("❌ Invalid input. Please enter a number.")
+
+def mark_completed(task_number):
+    """Marks a task as completed based on its number (index + 1)."""
+    try:
+        task_index = int(task_number) - 1
+        if 0 <= task_index < len(tasks):
+            tasks[task_index]["completed"] = True
+            print(f"🎉 Marked as completed: '{tasks[task_index]['task']}'")
+        else:
+            print("❌ Invalid task number. Please try again.")
+    except ValueError:
+        print("❌ Invalid input. Please enter a number.")
+
+def main_menu():
+    """Displays the main menu and handles user choices."""
+    load_tasks()
+    while True:
+        view_tasks()
+        print("
+--- COMMANDS ---")
+        print("1: Add a new task")
+        print("2: Delete a task (by number)")
+        print("3: Mark a task as completed (by number)")
+        print("4: Save & Exit")
+        print("----------------")
+        choice = input("Select a command (1-4): ")
+        if choice == '1':
+            task_desc = input("Enter the task description: ")
+            if task_desc:
+                add_task(task_desc)
+            else:
+                print("Task description cannot be empty.")
+        elif choice == '2':
+            task_num = input("Enter the number of the task to delete: ")
+            delete_task(task_num)
+        elif choice == '3':
+            task_num = input("Enter the number of the task to mark as completed: ")
+            mark_completed(task_num)
+        elif choice == '4':
+            save_tasks()
+            print("👋 System shutting down. Goodbye!")
+            break
+        else:
+            print("❌ Invalid choice. Please select a number from 1 to 4.")
+
+if __name__ == "__main__":
+    main_menu()