53 lines
1.7 KiB
Python
53 lines
1.7 KiB
Python
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import json
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from pathlib import Path
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from typing import Union
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from loguru import logger as log
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class CacheDB:
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def __init__(self, db_path: Union[str, Path], uuid: str, lang: str) -> None:
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self.db_path = Path(db_path)
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self.uuid = uuid
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self.lang = lang
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self.db_key = f"{uuid}__{lang}"
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self._prepare()
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self.db_data = self.read_db()
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if not self.db_data.get(self.db_key):
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self.db_data[self.db_key] = {}
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self.db_uuid_data: dict = self.db_data[self.db_key]
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self.db_uuid_chapters: list = self.db_uuid_data.get("chapters") or []
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def _prepare(self):
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if self.db_path.exists() and self.db_path.is_file():
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return
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try:
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self.db_path.touch()
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self.db_path.write_text(json.dumps({}), encoding="utf8")
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except Exception as exc:
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log.error("Can't create db-file")
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raise exc
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def read_db(self) -> dict:
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log.info(f"Reading cache-db: {self.db_path}")
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try:
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db_txt = self.db_path.read_text(encoding="utf8")
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db_dict: dict = json.loads(db_txt)
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except Exception as exc:
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log.error("Can't load cache-db")
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raise exc
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return db_dict
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def add_chapter(self, chapter: str) -> None:
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log.info(f"Adding chapter to cache-db: {chapter}")
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self.db_uuid_chapters.append(chapter)
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try:
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self.db_data[self.db_key]["chapters"] = self.db_uuid_chapters
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self.db_path.write_text(json.dumps(self.db_data, indent=4), encoding="utf8")
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except Exception as exc:
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log.error("Can't write cache-db")
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raise exc
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