MicroFish/backend/app/config.py

114 lines
4.9 KiB
Python

"""Configuration management.
Loads configuration values from the project-root ``.env`` file.
"""
import os
from dotenv import load_dotenv
# Load the project-root .env file.
# Path: MiroFish/.env (relative to backend/app/config.py).
project_root_env = os.path.join(os.path.dirname(__file__), '../../.env')
if os.path.exists(project_root_env):
load_dotenv(project_root_env, override=True)
else:
# If the project root has no .env, fall back to the process environment
# (used in production deployments).
load_dotenv(override=True)
class Config:
"""Flask configuration class."""
# Flask settings.
SECRET_KEY = os.environ.get('SECRET_KEY', 'mirofish-secret-key')
DEBUG = os.environ.get('FLASK_DEBUG', 'True').lower() == 'true'
# JSON settings: disable ASCII escaping so non-ASCII output renders literally
# rather than as \uXXXX escape sequences.
JSON_AS_ASCII = False
# LLM settings (called via the OpenAI-compatible API surface).
LLM_API_KEY = os.environ.get('LLM_API_KEY')
LLM_BASE_URL = os.environ.get('LLM_BASE_URL', 'https://api.openai.com/v1')
LLM_MODEL_NAME = os.environ.get('LLM_MODEL_NAME', 'gpt-4o-mini')
# Neo4j + Graphiti settings (replacement for Zep Cloud).
NEO4J_URI = os.environ.get('NEO4J_URI', 'bolt://localhost:7687')
NEO4J_USER = os.environ.get('NEO4J_USER', 'neo4j')
NEO4J_PASSWORD = os.environ.get('NEO4J_PASSWORD', 'mirofish123')
# Embedding pipeline — defaults target a local Ollama instance running
# `mxbai-embed-large` (1024-dim, matches Graphiti's vector index). Override
# any of the three EMBEDDING_* env vars to point at OpenAI, Gemini, or any
# other OpenAI-SDK-compatible endpoint. See `.env.example` for snippets.
EMBEDDING_MODEL = os.environ.get('EMBEDDING_MODEL', 'mxbai-embed-large')
EMBEDDING_BASE_URL = os.environ.get('EMBEDDING_BASE_URL', 'http://localhost:11434/v1')
EMBEDDING_API_KEY = os.environ.get('EMBEDDING_API_KEY', 'ollama')
# Graphiti provider switch. Allowed: "openai", "gemini".
# "openai" works for any OpenAI-SDK-compatible endpoint (Ollama via its
# /v1 surface, Qwen via Dashscope, GLM, OpenAI itself). Set to "gemini"
# to use Google Gemini directly.
GRAPHITI_LLM_PROVIDER = os.environ.get('GRAPHITI_LLM_PROVIDER', 'openai')
# Reranker (cross-encoder) settings. The reranker reorders Graphiti search
# results before they reach the ReportAgent tools. Defaults target the same
# local Ollama host used for embeddings; setting RERANKER_PROVIDER=none
# disables reranking and keeps the legacy passthrough (useful for CI or
# slim containers that cannot pull the reranker model). RERANKER_BASE_URL
# and RERANKER_API_KEY chain through EMBEDDING_BASE_URL / EMBEDDING_API_KEY
# so a single-host Ollama deployment needs no extra configuration.
RERANKER_PROVIDER = os.environ.get('RERANKER_PROVIDER', 'ollama')
RERANKER_MODEL = os.environ.get('RERANKER_MODEL', 'qwen2.5:3b')
RERANKER_BASE_URL = os.environ.get(
'RERANKER_BASE_URL',
os.environ.get('EMBEDDING_BASE_URL', 'http://localhost:11434/v1'),
)
RERANKER_API_KEY = os.environ.get(
'RERANKER_API_KEY',
os.environ.get('EMBEDDING_API_KEY', 'ollama'),
)
# Zep settings (kept for backwards compatibility; deprecated).
ZEP_API_KEY = os.environ.get('ZEP_API_KEY', '')
# File upload settings.
MAX_CONTENT_LENGTH = 50 * 1024 * 1024 # 50MB
UPLOAD_FOLDER = os.path.join(os.path.dirname(__file__), '../uploads')
ALLOWED_EXTENSIONS = {'pdf', 'md', 'txt', 'markdown'}
# Text processing settings.
DEFAULT_CHUNK_SIZE = 500 # default chunk size in characters
DEFAULT_CHUNK_OVERLAP = 50 # default overlap in characters
# OASIS simulation settings.
OASIS_DEFAULT_MAX_ROUNDS = int(os.environ.get('OASIS_DEFAULT_MAX_ROUNDS', '10'))
OASIS_SIMULATION_DATA_DIR = os.path.join(os.path.dirname(__file__), '../uploads/simulations')
# OASIS per-platform allowed action lists.
OASIS_TWITTER_ACTIONS = [
'CREATE_POST', 'LIKE_POST', 'REPOST', 'FOLLOW', 'DO_NOTHING', 'QUOTE_POST'
]
OASIS_REDDIT_ACTIONS = [
'LIKE_POST', 'DISLIKE_POST', 'CREATE_POST', 'CREATE_COMMENT',
'LIKE_COMMENT', 'DISLIKE_COMMENT', 'SEARCH_POSTS', 'SEARCH_USER',
'TREND', 'REFRESH', 'DO_NOTHING', 'FOLLOW', 'MUTE'
]
# Report agent settings.
REPORT_AGENT_MAX_TOOL_CALLS = int(os.environ.get('REPORT_AGENT_MAX_TOOL_CALLS', '5'))
REPORT_AGENT_MAX_REFLECTION_ROUNDS = int(os.environ.get('REPORT_AGENT_MAX_REFLECTION_ROUNDS', '2'))
REPORT_AGENT_TEMPERATURE = float(os.environ.get('REPORT_AGENT_TEMPERATURE', '0.5'))
@classmethod
def validate(cls):
"""Validate that required configuration values are present."""
errors = []
if not cls.LLM_API_KEY:
errors.append("LLM_API_KEY 未配置")
if not cls.NEO4J_PASSWORD:
errors.append("NEO4J_PASSWORD 未配置")
return errors