dashboard-nanobot/backend/services/system_service.py

156 lines
6.7 KiB
Python

import json
import os
from typing import Any, Callable, Dict
from fastapi import HTTPException
from sqlmodel import Session, select
from models.bot import BotInstance
class SystemService:
def __init__(
self,
*,
engine: Any,
cache: Any,
database_engine: str,
redis_enabled: bool,
redis_url: str,
redis_prefix: str,
agent_md_templates_file: str,
topic_presets_templates_file: str,
default_soul_md: str,
default_agents_md: str,
default_user_md: str,
default_tools_md: str,
default_identity_md: str,
topic_preset_templates: Any,
get_default_system_timezone: Callable[[], str],
load_agent_md_templates: Callable[[], Dict[str, Any]],
load_topic_presets_template: Callable[[], Dict[str, Any]],
get_platform_settings_snapshot: Callable[[], Any],
get_speech_runtime_settings: Callable[[], Dict[str, Any]],
) -> None:
self._engine = engine
self._cache = cache
self._database_engine = database_engine
self._redis_enabled = redis_enabled
self._redis_url = redis_url
self._redis_prefix = redis_prefix
self._agent_md_templates_file = agent_md_templates_file
self._topic_presets_templates_file = topic_presets_templates_file
self._default_soul_md = default_soul_md
self._default_agents_md = default_agents_md
self._default_user_md = default_user_md
self._default_tools_md = default_tools_md
self._default_identity_md = default_identity_md
self._topic_preset_templates = topic_preset_templates
self._get_default_system_timezone = get_default_system_timezone
self._load_agent_md_templates = load_agent_md_templates
self._load_topic_presets_template = load_topic_presets_template
self._get_platform_settings_snapshot = get_platform_settings_snapshot
self._get_speech_runtime_settings = get_speech_runtime_settings
@staticmethod
def _write_json_atomic(path: str, payload: Dict[str, Any]) -> None:
os.makedirs(os.path.dirname(path), exist_ok=True)
tmp = f"{path}.tmp"
with open(tmp, "w", encoding="utf-8") as file:
json.dump(payload, file, ensure_ascii=False, indent=2)
os.replace(tmp, path)
def get_system_defaults(self) -> Dict[str, Any]:
md_templates = self._load_agent_md_templates()
topic_presets = self._load_topic_presets_template()
platform_settings = self._get_platform_settings_snapshot()
speech_settings = self._get_speech_runtime_settings()
return {
"templates": {
"soul_md": md_templates.get("soul_md") or self._default_soul_md,
"agents_md": md_templates.get("agents_md") or self._default_agents_md,
"user_md": md_templates.get("user_md") or self._default_user_md,
"tools_md": md_templates.get("tools_md") or self._default_tools_md,
"identity_md": md_templates.get("identity_md") or self._default_identity_md,
},
"limits": {
"upload_max_mb": platform_settings.upload_max_mb,
},
"workspace": {
"download_extensions": list(platform_settings.workspace_download_extensions),
"allowed_attachment_extensions": list(platform_settings.allowed_attachment_extensions),
},
"bot": {
"system_timezone": self._get_default_system_timezone(),
},
"loading_page": platform_settings.loading_page.model_dump(),
"chat": {
"pull_page_size": platform_settings.chat_pull_page_size,
"page_size": platform_settings.page_size,
"command_auto_unlock_seconds": platform_settings.command_auto_unlock_seconds,
},
"topic_presets": topic_presets.get("presets") or self._topic_preset_templates,
"speech": {
"enabled": speech_settings["enabled"],
"model": speech_settings["model"],
"device": speech_settings["device"],
"max_audio_seconds": speech_settings["max_audio_seconds"],
"default_language": speech_settings["default_language"],
},
}
def get_system_templates(self) -> Dict[str, Any]:
return {
"agent_md_templates": self._load_agent_md_templates(),
"topic_presets": self._load_topic_presets_template(),
}
def update_system_templates(self, *, payload: Any) -> Dict[str, Any]:
if payload.agent_md_templates is not None:
sanitized_agent: Dict[str, str] = {}
for key in ("agents_md", "soul_md", "user_md", "tools_md", "identity_md"):
sanitized_agent[key] = str(payload.agent_md_templates.get(key, "") or "").replace("\r\n", "\n")
self._write_json_atomic(str(self._agent_md_templates_file), sanitized_agent)
if payload.topic_presets is not None:
presets = payload.topic_presets.get("presets") if isinstance(payload.topic_presets, dict) else None
if presets is None:
normalized_topic: Dict[str, Any] = {"presets": []}
elif isinstance(presets, list):
normalized_topic = {"presets": [dict(row) for row in presets if isinstance(row, dict)]}
else:
raise HTTPException(status_code=400, detail="topic_presets.presets must be an array")
self._write_json_atomic(str(self._topic_presets_templates_file), normalized_topic)
return {
"status": "ok",
"agent_md_templates": self._load_agent_md_templates(),
"topic_presets": self._load_topic_presets_template(),
}
def get_health(self) -> Dict[str, Any]:
try:
with Session(self._engine) as session:
session.exec(select(BotInstance).limit(1)).first()
return {"status": "ok", "database": self._database_engine}
except Exception as exc:
raise HTTPException(status_code=503, detail=f"database check failed: {exc}")
def get_cache_health(self) -> Dict[str, Any]:
redis_url = str(self._redis_url or "").strip()
configured = bool(self._redis_enabled and redis_url)
client_enabled = bool(getattr(self._cache, "enabled", False))
reachable = bool(self._cache.ping()) if client_enabled else False
status = "ok"
if configured and not reachable:
status = "degraded"
return {
"status": status,
"cache": {
"configured": configured,
"enabled": client_enabled,
"reachable": reachable,
"prefix": self._redis_prefix,
},
}