[Python 3] 일정 관리기 [미완성]

import tkinter as tk
from tkinter import messagebox, ttk
import json
from datetime import datetime
try:
    from tkcalendar import Calendar
    TKCALENDAR_AVAILABLE = True
except ImportError:
    TKCALENDAR_AVAILABLE = False

# 데이터 파일 경로
DATA_FILE = "todo_advanced_data.json"

class ToDoApp:
    def __init__(self, root):
        self.root = root
        self.root.title("Advanced To-Do List App")
        self.root.geometry("700x800")
        self.tasks = []  # 전체 작업 데이터
        self.dark_mode = False

        # 상단 입력 필드와 추가 버튼
        self.input_frame = tk.Frame(self.root)
        self.input_frame.pack(pady=10)

        self.task_entry = tk.Entry(self.input_frame, width=25, font=("Arial", 14))
        self.task_entry.pack(side=tk.LEFT, padx=5)

        self.category_menu = tk.StringVar(value="General")
        self.category_dropdown = ttk.Combobox(
            self.input_frame, textvariable=self.category_menu, values=["General", "Work", "Personal", "Study"], state="readonly"
        )
        self.category_dropdown.pack(side=tk.LEFT, padx=5)

        self.priority_menu = tk.StringVar(value="Medium")
        self.priority_dropdown = ttk.Combobox(
            self.input_frame, textvariable=self.priority_menu, values=["High", "Medium", "Low"], state="readonly"
        )
        self.priority_dropdown.pack(side=tk.LEFT, padx=5)

        if TKCALENDAR_AVAILABLE:
            self.date_button = tk.Button(self.input_frame, text="Set Due Date", command=self.open_calendar, width=10)
            self.date_button.pack(side=tk.LEFT, padx=5)

        self.add_button = tk.Button(self.input_frame, text="Add Task", command=self.add_task, width=10)
        self.add_button.pack(side=tk.LEFT, padx=5)

        # 리스트 박스와 스크롤바
        self.list_frame = tk.Frame(self.root)
        self.list_frame.pack(pady=10)

        self.scrollbar = tk.Scrollbar(self.list_frame)
        self.scrollbar.pack(side=tk.RIGHT, fill=tk.Y)

        self.task_listbox = tk.Listbox(self.list_frame, height=20, width=70, font=("Arial", 14), yscrollcommand=self.scrollbar.set)
        self.task_listbox.pack(side=tk.LEFT, fill=tk.BOTH)
        self.scrollbar.config(command=self.task_listbox.yview)

        # 아래 작업 버튼들
        self.button_frame = tk.Frame(self.root)
        self.button_frame.pack(pady=10)

        self.complete_button = tk.Button(self.button_frame, text="Mark Complete", command=self.complete_task, width=15)
        self.complete_button.pack(side=tk.LEFT, padx=5)

        self.delete_button = tk.Button(self.button_frame, text="Delete Task", command=self.delete_task, width=15)
        self.delete_button.pack(side=tk.LEFT, padx=5)

        # 데이터 불러오기
        self.load_tasks()

    def add_task(self):
        """할 일을 추가"""
        task = self.task_entry.get().strip()
        category = self.category_menu.get()
        priority = self.priority_menu.get()
        if task:
            due_date = getattr(self, "due_date", None) if TKCALENDAR_AVAILABLE else None  # 설정된 마감일
            self.tasks.append({
                "task": task,
                "completed": False,
                "category": category,
                "priority": priority,
                "due_date": due_date
            })
            self.update_task_listbox()
            self.task_entry.delete(0, tk.END)  # 입력 필드 초기화
            self.due_date = None  # 마감일 초기화
            self.save_tasks()
        else:
            messagebox.showwarning("Warning", "Task cannot be empty!")

    def complete_task(self):
        """작업 완료로 표시"""
        selected_index = self.task_listbox.curselection()
        if selected_index:
            index = selected_index[0]
            self.tasks[index]["completed"] = not self.tasks[index]["completed"]  # 완료 상태 토글
            self.update_task_listbox()
            self.save_tasks()
        else:
            messagebox.showwarning("Warning", "Please select a task to mark complete!")

    def delete_task(self):
        """작업 삭제"""
        selected_index = self.task_listbox.curselection()
        if selected_index:
            index = selected_index[0]
            self.tasks.pop(index)  # 작업 삭제
            self.update_task_listbox()
            self.save_tasks()
        else:
            messagebox.showwarning("Warning", "Please select a task to delete!")

    def update_task_listbox(self):
        """리스트박스를 현재 작업 상태에 맞게 업데이트"""
        self.task_listbox.delete(0, tk.END)  # 기존 항목 모두 제거
        for task in self.tasks:
            display_text = f"{task['task']} ({task['category']}, {task['priority']})"
            if TKCALENDAR_AVAILABLE and task.get("due_date"):
                display_text += f" [Due: {task['due_date']}]"
            if task["completed"]:
                display_text += " (Completed)"
            self.task_listbox.insert(tk.END, display_text)

    def save_tasks(self):
        """작업 데이터를 JSON 파일로 저장"""
        with open(DATA_FILE, "w") as f:
            json.dump(self.tasks, f)

    def load_tasks(self):
        """JSON 파일에서 작업 데이터를 불러오기"""
        try:
            with open(DATA_FILE, "r") as f:
                self.tasks = json.load(f)
                self.update_task_listbox()  # 리스트박스 업데이트
        except FileNotFoundError:
            self.tasks = []

    def open_calendar(self):
        """캘린더 위젯 열기"""
        if not TKCALENDAR_AVAILABLE:
            messagebox.showerror("Error", "tkcalendar module is not installed!")
            return
        calendar_window = tk.Toplevel(self.root)
        calendar_window.title("Select Due Date")
        calendar = Calendar(calendar_window, selectmode="day", date_pattern="yyyy-mm-dd")
        calendar.pack(pady=20)
        tk.Button(
            calendar_window, text="Set Date", command=lambda: self.set_due_date(calendar, calendar_window)
        ).pack()

    def set_due_date(self, calendar, window):
        """마감일 설정"""
        self.due_date = calendar.get_date()
        window.destroy()

# 앱 실행
if __name__ == "__main__":
    root = tk.Tk()
    app = ToDoApp(root)
    root.mainloop()

어플로 만들고 싶었는데 파이썬으로만 돌아가서 더 연구하고 완성하겠습니다