Files
Heimgeist/backend/app_settings.py

108 lines
3.2 KiB
Python

from __future__ import annotations
import json
import os
import sys
from pathlib import Path
from typing import Any, Dict
APP_NAME = "Heimgeist"
DEFAULT_BACKEND_API_URL = "http://127.0.0.1:8000"
DEFAULT_OLLAMA_API_URL = "http://127.0.0.1:11434"
DEFAULT_EMBED_MODEL = "nomic-embed-text:latest"
BGE_EMBED_MODEL = "bge-m3:latest"
DEFAULT_SETTINGS: Dict[str, Any] = {
"backendApiUrl": DEFAULT_BACKEND_API_URL,
"ollamaApiUrl": DEFAULT_OLLAMA_API_URL,
"embedModel": DEFAULT_EMBED_MODEL,
}
def _default_settings_dir() -> Path:
if sys.platform == "darwin":
return Path.home() / "Library" / "Application Support" / APP_NAME
if os.name == "nt":
appdata = os.getenv("APPDATA")
if appdata:
return Path(appdata) / APP_NAME
return Path.home() / "AppData" / "Roaming" / APP_NAME
return Path(os.getenv("XDG_CONFIG_HOME", str(Path.home() / ".config"))) / APP_NAME
def settings_path() -> Path:
custom_path = os.getenv("HEIMGEIST_SETTINGS_FILE")
if custom_path:
return Path(custom_path).expanduser()
return _default_settings_dir() / "settings.json"
def _looks_like_ollama_url(value: Any) -> bool:
if not isinstance(value, str):
return False
trimmed = value.strip()
if not trimmed:
return False
if ":11434" in trimmed:
return True
return trimmed.rstrip("/").endswith("/api")
def _normalize_url(value: Any, fallback: str) -> str:
if not isinstance(value, str):
return fallback
trimmed = value.strip().rstrip("/")
return trimmed or fallback
def normalize_embed_model(value: Any) -> str:
if not isinstance(value, str):
return DEFAULT_EMBED_MODEL
trimmed = value.strip().lower()
if trimmed in {"bge", "bge-m3", BGE_EMBED_MODEL}:
return BGE_EMBED_MODEL
return DEFAULT_EMBED_MODEL
def load_app_settings() -> Dict[str, Any]:
path = settings_path()
try:
raw = json.loads(path.read_text(encoding="utf-8"))
except FileNotFoundError:
raw = {}
except Exception:
raw = {}
if not isinstance(raw, dict):
raw = {}
settings = {**DEFAULT_SETTINGS, **raw}
if "backendApiUrl" not in raw and isinstance(raw.get("ollamaApiUrl"), str):
if _looks_like_ollama_url(raw["ollamaApiUrl"]):
settings["backendApiUrl"] = DEFAULT_BACKEND_API_URL
settings["ollamaApiUrl"] = _normalize_url(raw["ollamaApiUrl"], DEFAULT_OLLAMA_API_URL)
else:
settings["backendApiUrl"] = _normalize_url(raw["ollamaApiUrl"], DEFAULT_BACKEND_API_URL)
settings["ollamaApiUrl"] = DEFAULT_OLLAMA_API_URL
else:
settings["backendApiUrl"] = _normalize_url(settings.get("backendApiUrl"), DEFAULT_BACKEND_API_URL)
settings["ollamaApiUrl"] = _normalize_url(settings.get("ollamaApiUrl"), DEFAULT_OLLAMA_API_URL)
settings["embedModel"] = normalize_embed_model(settings.get("embedModel"))
return settings
def get_ollama_api_url() -> str:
settings = load_app_settings()
return _normalize_url(settings.get("ollamaApiUrl"), DEFAULT_OLLAMA_API_URL)
def get_embed_model_preference() -> str:
settings = load_app_settings()
return normalize_embed_model(settings.get("embedModel"))