|
| 1 | +from typing import Optional |
| 2 | +import uuid |
| 3 | +from datetime import datetime, timezone |
| 4 | + |
| 5 | +from src.repos.base_repo import BaseRepo |
| 6 | +from src.schemas.entities.settings import UserSettings, ProviderKeyStatus |
| 7 | +from src.utils.security import encrypt_value, decrypt_value |
| 8 | +from src.constants import UserTokenKey |
| 9 | + |
| 10 | +# Single well-known key for the one settings record per user |
| 11 | +_SETTINGS_KEY = "default" |
| 12 | + |
| 13 | + |
| 14 | +class UserSettingsRepo(BaseRepo): |
| 15 | + def __init__(self, user_id: str, store): |
| 16 | + super().__init__(user_id, store, "user_settings") |
| 17 | + |
| 18 | + # ------------------------------------------------------------------ |
| 19 | + # Helpers |
| 20 | + # ------------------------------------------------------------------ |
| 21 | + |
| 22 | + def _validate_provider(self, provider: str) -> None: |
| 23 | + """Raise ValueError if provider is not in UserTokenKey.""" |
| 24 | + valid = UserTokenKey.values() |
| 25 | + if provider not in valid: |
| 26 | + raise ValueError(f"Invalid provider '{provider}'. Must be one of: {valid}") |
| 27 | + |
| 28 | + async def _get_or_create(self) -> UserSettings: |
| 29 | + """Return existing settings or create an empty record.""" |
| 30 | + item = await self._get(_SETTINGS_KEY) |
| 31 | + if item: |
| 32 | + return UserSettings.model_validate(item.value) |
| 33 | + settings = UserSettings( |
| 34 | + id=str(uuid.uuid4()), |
| 35 | + user_id=self.user_id, |
| 36 | + created_at=datetime.now(timezone.utc), |
| 37 | + updated_at=datetime.now(timezone.utc), |
| 38 | + ) |
| 39 | + await self._set(_SETTINGS_KEY, settings) |
| 40 | + return settings |
| 41 | + |
| 42 | + def _decrypt_keys(self, settings: UserSettings) -> dict[str, str]: |
| 43 | + """Return decrypted key map, or empty dict if nothing stored.""" |
| 44 | + if not settings.encrypted_keys: |
| 45 | + return {} |
| 46 | + return decrypt_value(settings.encrypted_keys) |
| 47 | + |
| 48 | + def _encrypt_keys(self, keys: dict[str, str]) -> Optional[str]: |
| 49 | + if not keys: |
| 50 | + return None |
| 51 | + return encrypt_value(keys) |
| 52 | + |
| 53 | + # ------------------------------------------------------------------ |
| 54 | + # Public API |
| 55 | + # ------------------------------------------------------------------ |
| 56 | + |
| 57 | + async def get_settings(self) -> tuple[UserSettings, list[ProviderKeyStatus]]: |
| 58 | + """Return settings and provider key statuses (no raw keys).""" |
| 59 | + settings = await self._get_or_create() |
| 60 | + keys = self._decrypt_keys(settings) |
| 61 | + statuses = [ |
| 62 | + ProviderKeyStatus(provider=p.value, is_set=(p.value in keys)) |
| 63 | + for p in UserTokenKey |
| 64 | + ] |
| 65 | + return settings, statuses |
| 66 | + |
| 67 | + async def set_default_model(self, model: Optional[str]) -> UserSettings: |
| 68 | + settings = await self._get_or_create() |
| 69 | + settings.default_model = model |
| 70 | + settings.updated_at = datetime.now(timezone.utc) |
| 71 | + await self._set(_SETTINGS_KEY, settings) |
| 72 | + return settings |
| 73 | + |
| 74 | + async def upsert_provider_key(self, provider: str, api_key: str) -> UserSettings: |
| 75 | + self._validate_provider(provider) |
| 76 | + settings = await self._get_or_create() |
| 77 | + keys = self._decrypt_keys(settings) |
| 78 | + keys[provider] = api_key |
| 79 | + settings.encrypted_keys = self._encrypt_keys(keys) |
| 80 | + settings.updated_at = datetime.now(timezone.utc) |
| 81 | + await self._set(_SETTINGS_KEY, settings) |
| 82 | + return settings |
| 83 | + |
| 84 | + async def delete_provider_key(self, provider: str) -> UserSettings: |
| 85 | + self._validate_provider(provider) |
| 86 | + settings = await self._get_or_create() |
| 87 | + keys = self._decrypt_keys(settings) |
| 88 | + keys.pop(provider, None) |
| 89 | + settings.encrypted_keys = self._encrypt_keys(keys) |
| 90 | + settings.updated_at = datetime.now(timezone.utc) |
| 91 | + await self._set(_SETTINGS_KEY, settings) |
| 92 | + return settings |
| 93 | + |
| 94 | + async def get_all_decrypted_keys(self) -> dict[str, str]: |
| 95 | + """Return all decrypted provider keys as a dict.""" |
| 96 | + settings = await self._get_or_create() |
| 97 | + return self._decrypt_keys(settings) |
| 98 | + |
| 99 | + async def get_decrypted_key(self, provider: str) -> Optional[str]: |
| 100 | + """Return the raw decrypted key for a single provider, or None.""" |
| 101 | + self._validate_provider(provider) |
| 102 | + settings = await self._get_or_create() |
| 103 | + keys = self._decrypt_keys(settings) |
| 104 | + return keys.get(provider) |
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