import json
import os
from pathlib import Path

progress_file = Path("data/scan_progress.json")

class ProgressChecker:
    def __init__(self, filepath):
        self.filepath = filepath
        self.progress = self.load_progress()

    def save(self):
        """현재 진행 상황을 파일에 저장"""
        with open(self.filepath, 'w', encoding='utf-8') as f:
            json.dump(self.progress, f, ensure_ascii=False, indent=2)

    def load(self):
        """이전 진행 상황을 파일에서 불러오기"""
        if os.path.exists(self.filepath):
            try:
                with open(self.filepath, 'r', encoding='utf-8') as f:
                    return json.load(f)
            except:
                return None
        return None