from app.utils import read_json, write_json
from pathlib import Path
from app.config import settings

class RelationManager:
    def path(self):
        p = Path(settings.data_root) / "cache" / "relations" / "relations.json"
        p.parent.mkdir(parents=True, exist_ok=True)
        return p

    def list(self):
        return read_json(self.path(), [])

    def save(self, relations):
        write_json(self.path(), relations)
        return relations

relation_manager = RelationManager()