2025-04-16 20:29:46 +02:00

37 lines
1.4 KiB
Python

import os
import json
from pathlib import Path
class Cache:
def __init__(self, cache_dir='.cache', cache_file='messages.json'):
self.cache_dir = Path(cache_dir)
self.cache_file = self.cache_dir / cache_file
self.cache_dir.mkdir(parents=True, exist_ok=True)
if not self.cache_file.exists():
with open(self.cache_file, 'w') as f:
json.dump([], f)
with open(self.cache_file, 'r') as f:
self.cache = set(json.load(f))
def add_message_pair(self, user_message: str, assistant_message: str):
"""Add a user/assistant pair to the cache if not present."""
if not any(entry["user"] == user_message for entry in self.cache):
self.cache.append({"user": user_message, "assistant": assistant_message})
self._save()
def is_cached(self, user_message: str) -> bool:
"""Check if a user msg is cached."""
return any(entry["user"] == user_message for entry in self.cache)
def get_cached_response(self, user_message: str) -> str | None:
"""Return the assistant response to a user message if cached."""
for entry in self.cache:
if entry["user"] == user_message:
return entry["assistant"]
return None
def _save(self):
with open(self.cache_file, 'w') as f:
json.dump(self.cache, f, indent=2)