Pine
f4067c1f0e
- 后端 config.py：新增 S2S_INSTRUCTIONS（.env DPM_S2S_INSTRUCTIONS 可覆盖） - rag.py：build_instructions() 组装 配置提示词 + 园区知识库摘要 - routers.py：GET /api/s2s/instructions 下发（前端连接时拉取） - 前端 VoiceAssistant：删除硬编码 DEFAULT_INSTRUCTIONS，改拉取后端指令； 仅保留后端不可用时的极简兜底 改提示词只需改后端（.env 或代码），前端零硬编码。
96 lines
4.2 KiB
Python
96 lines
4.2 KiB
Python
# -*- coding: utf-8 -*-
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"""OPC 智能园区后端 —— 全局配置（backend/.env 可覆盖，未配置时用默认值）"""
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import os
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from pathlib import Path
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BASE_DIR = Path(__file__).resolve().parent.parent # backend/
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def _load_dotenv(path):
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"""极简 .env 解析：KEY=VALUE，支持 # 注释与引号"""
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if not Path(path).exists():
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return
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for raw in Path(path).read_text("utf-8").splitlines():
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line = raw.strip()
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if not line or line.startswith("#") or "=" not in line:
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continue
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key, _, value = line.partition("=")
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key = key.strip()
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value = value.strip().strip('"').strip("'")
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if key and key not in os.environ:
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os.environ[key] = value
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_load_dotenv(BASE_DIR / ".env")
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def _env(key, default):
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return os.getenv(key, default)
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class Settings:
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# ---- HTTP ----
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HOST = _env("DPM_HOST", _env("FASTAPI_HOST", "0.0.0.0"))
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PORT = int(_env("DPM_PORT", _env("FASTAPI_PORT", "8000")))
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# ---- 数据目录 ----
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MEDIA_DIR = Path(_env("DPM_MEDIA_DIR", str(BASE_DIR / "media")))
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DATA_FILE = Path(_env("DPM_DATA_FILE", str(BASE_DIR / "data.json")))
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DIST_DIR = Path(_env("DPM_DIST_DIR", str(BASE_DIR.parent / "dist"))) # 前端构建产物（可选托管）
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# ---- MQTT（优先使用 .env 中的局域网 Broker 配置） ----
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MQTT_ENABLED = _env("DPM_MQTT_ENABLED", "1") == "1"
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MQTT_HOST = _env("DPM_MQTT_HOST", _env("MQTT_BROKER_HOST", "127.0.0.1"))
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MQTT_PORT = int(_env("DPM_MQTT_PORT", _env("MQTT_BROKER_PORT", "1883")))
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MQTT_USERNAME = _env("DPM_MQTT_USERNAME", _env("MQTT_USERNAME", "")) or None
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MQTT_PASSWORD = _env("DPM_MQTT_PASSWORD", _env("MQTT_PASSWORD", "")) or None
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MQTT_CLIENT_ID = _env("DPM_MQTT_CLIENT_ID", "dpm-backend")
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# 前端 WebSocket 接入地址（默认按 .env 的 broker 主机 + EMQX 常规 ws 端口）
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MQTT_WS_URL = _env(
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"DPM_MQTT_WS",
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f"ws://{_env('MQTT_PUBLIC_HOST', _env('MQTT_BROKER_HOST', 'localhost'))}:8083/mqtt",
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)
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MQTT_TICK_INTERVAL = float(_env("DPM_MQTT_TICK_INTERVAL", "2.2"))
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# ---- 主题 ----
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TOPIC_COMMAND = _env("DPM_TOPIC_COMMAND", "opc/display/command")
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TOPIC_TICK = _env("DPM_TOPIC_TICK", "opc/dashboard/tick")
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TOPIC_ACK = _env("DPM_TOPIC_ACK", "opc/display/ack")
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TOPIC_HEARTBEAT = _env("DPM_TOPIC_HEARTBEAT", "opc/display/heartbeat")
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SCREEN_TTL = float(_env("DPM_SCREEN_TTL", "30")) # 大屏心跳过期秒数
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# ---- 阿里云 DashScope（LLM + 语音识别） ----
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DASHSCOPE_API_KEY = _env("DASHSCOPE_API_KEY", "")
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LLM_MODEL = _env("DPM_LLM_MODEL", "qwen-plus") # 通义千问
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ASR_MODEL = _env("DPM_ASR_MODEL", "paraformer-realtime-v2") # 流式语音识别
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LLM_BASE_URL = _env("DPM_LLM_BASE_URL", "https://dashscope.aliyuncs.com/compatible-mode/v1")
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ASR_TIMEOUT = float(_env("DPM_ASR_TIMEOUT", "30"))
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# ---- 管理后台 ----
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ADMIN_SECRET = _env("DPM_ADMIN_SECRET", "dpm-admin-secret-change-me")
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# ---- s2s 实时语音栈（VAD本地 + 云ASR/LLM/TTS） ----
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S2S_ENABLED = _env("DPM_S2S_ENABLED", "0") == "1"
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S2S_HOST = _env("DPM_S2S_HOST", "0.0.0.0")
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S2S_PORT = int(_env("DPM_S2S_PORT", "8765"))
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S2S_NUM_PIPELINES = int(_env("DPM_S2S_NUM_PIPELINES", "1"))
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S2S_STT_MODEL = _env("DPM_S2S_STT_MODEL", "qwen3-asr-flash-realtime")
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S2S_LLM_MODEL = _env("DPM_S2S_LLM_MODEL", "qwen-plus")
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S2S_TTS_MODEL = _env("DPM_S2S_TTS_MODEL", "qwen3-tts-flash-realtime")
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S2S_TTS_VOICE = _env("DPM_S2S_TTS_VOICE", "Cherry")
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S2S_BUILD_RETRIES = int(_env("DPM_S2S_BUILD_RETRIES", "4"))
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S2S_BUILD_RETRY_DELAY = float(_env("DPM_S2S_BUILD_RETRY_DELAY", "10"))
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S2S_LOG_LEVEL = _env("DPM_S2S_LOG_LEVEL", "INFO").upper()
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# 语音助手基础提示词（.env 设 DPM_S2S_INSTRUCTIONS 可覆盖；知识库内容由 rag 自动拼接）
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S2S_INSTRUCTIONS = _env(
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"DPM_S2S_INSTRUCTIONS",
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"你是 PineSound 园区智能语音助手。可用工具：get_park_overview（园区实时数据）、"
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"query_companies（企业名录）、control_display（大屏控制）、get_time（时间）。"
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"涉及园区数据/企业/大屏控制时务必调用工具获取准确信息。请用简洁专业的中文回答，不超过三句话。",
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)
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settings = Settings()
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