wehub-resource-sync
152 lines
4.9 KiB
Python
152 lines
4.9 KiB
Python
# Copyright 2025 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Configuration for Vertex AI Gemini Multimodal Live Proxy Server
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"""
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import logging
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import os
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from typing import Optional
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from dotenv import load_dotenv
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from google.cloud import secretmanager
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logger = logging.getLogger(__name__)
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# Load environment variables
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load_dotenv()
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class ConfigurationError(Exception):
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"""Custom exception for configuration errors."""
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def get_secret(secret_id: str) -> str:
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"""Get secret from Secret Manager."""
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client = secretmanager.SecretManagerServiceClient()
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project_id = os.environ.get("GOOGLE_CLOUD_PROJECT")
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if not project_id:
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raise ConfigurationError("GOOGLE_CLOUD_PROJECT environment variable is not set")
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name = f"projects/{project_id}/secrets/{secret_id}/versions/latest"
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try:
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response = client.access_secret_version(request={"name": name})
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return response.payload.data.decode("UTF-8")
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except Exception:
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raise
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class ApiConfig:
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"""API configuration handler."""
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def __init__(self):
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# Determine if using Vertex AI
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self.use_vertex = (
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os.getenv("GOOGLE_GENAI_USE_VERTEXAI", "false").lower() == "true"
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)
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self.api_key: Optional[str] = None
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logger.info(f"Initialized API configuration with Vertex AI: {self.use_vertex}")
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async def initialize(self):
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"""Initialize API credentials."""
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try:
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# Always try to get OpenWeather API key regardless of endpoint
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self.weather_api_key = get_secret("OPENWEATHER_API_KEY")
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except Exception as e:
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logger.warning(
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f"Failed to get OpenWeather API key from Secret Manager: {e}"
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)
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self.weather_api_key = os.getenv("OPENWEATHER_API_KEY")
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if not self.weather_api_key:
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raise ConfigurationError("OpenWeather API key not available")
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if not self.use_vertex:
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try:
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self.api_key = get_secret("GOOGLE_API_KEY")
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except Exception as e:
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logger.warning(f"Failed to get API key from Secret Manager: {e}")
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self.api_key = os.getenv("GOOGLE_API_KEY")
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if not self.api_key:
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raise ConfigurationError(
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"No API key available from Secret Manager or environment"
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)
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# Initialize API configuration
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api_config = ApiConfig()
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# Model configuration
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if api_config.use_vertex:
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MODEL = os.getenv("MODEL_GOOGLE_GENAI_USE_VERTEXAI", "gemini-2.0-flash-exp")
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VOICE = os.getenv("VOICE_GOOGLE_GENAI_USE_VERTEXAI", "Aoede")
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else:
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MODEL = os.getenv("MODEL_DEV_API", "models/gemini-2.0-flash-exp")
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VOICE = os.getenv("VOICE_DEV_API", "Puck")
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# Cloud Function URLs with validation
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CLOUD_FUNCTIONS = {
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"get_weather": os.getenv("WEATHER_FUNCTION_URL"),
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"get_weather_forecast": os.getenv("FORECAST_FUNCTION_URL"),
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"get_next_appointment": os.getenv("CALENDAR_FUNCTION_URL"),
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"get_past_appointments": os.getenv("PAST_APPOINTMENTS_FUNCTION_URL"),
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}
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# Validate Cloud Function URLs
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for name, url in CLOUD_FUNCTIONS.items():
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if not url:
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logger.warning(f"Missing URL for cloud function: {name}")
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elif not url.startswith("https://"):
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logger.warning(f"Invalid URL format for {name}: {url}")
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# Load system instructions
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try:
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with open("config/system-instructions.txt", "r") as f:
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SYSTEM_INSTRUCTIONS = f.read()
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except Exception as e:
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logger.error(f"Failed to load system instructions: {e}")
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SYSTEM_INSTRUCTIONS = ""
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logger.info(f"System instructions: {SYSTEM_INSTRUCTIONS}")
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# Gemini Configuration
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CONFIG = {
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"generation_config": {"response_modalities": ["AUDIO"], "speech_config": VOICE},
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"tools": [
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{
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"function_declarations": [
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{
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"name": "get_weather",
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"description": "Get weather information for a location",
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"parameters": {
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"type": "object",
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"properties": {
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"city": {
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"type": "string",
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"description": "The city or location to get weather for",
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}
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},
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"required": ["city"],
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},
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},
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]
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}
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],
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"system_instruction": SYSTEM_INSTRUCTIONS,
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}
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