153 lines
6.0 KiB
Python
153 lines
6.0 KiB
Python
# app/config.py
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import os
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from pydantic_settings import BaseSettings
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from dotenv import load_dotenv
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import logging
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import secrets
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from typing import List
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load_dotenv()
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logger = logging.getLogger(__name__)
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class Settings(BaseSettings):
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DATABASE_URL: str | None = None
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GEMINI_API_KEY: str | None = None
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SENTRY_DSN: str | None = None # Sentry DSN for error tracking
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# --- JWT Settings --- (SECRET_KEY is used by FastAPI-Users)
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SECRET_KEY: str # Must be set via environment variable
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# FastAPI-Users handles JWT algorithm internally
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# --- OCR Settings ---
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MAX_FILE_SIZE_MB: int = 10 # Maximum allowed file size for OCR processing
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ALLOWED_IMAGE_TYPES: list[str] = ["image/jpeg", "image/png", "image/webp"] # Supported image formats
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OCR_ITEM_EXTRACTION_PROMPT: str = """
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Extract the shopping list items from this image.
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List each distinct item on a new line.
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Ignore prices, quantities, store names, discounts, taxes, totals, and other non-item text.
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Focus only on the names of the products or items to be purchased.
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Add 2 underscores before and after the item name, if it is struck through.
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If the image does not appear to be a shopping list or receipt, state that clearly.
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Example output for a grocery list:
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Milk
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Eggs
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Bread
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__Apples__
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Organic Bananas
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"""
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# --- OCR Error Messages ---
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OCR_SERVICE_UNAVAILABLE: str = "OCR service is currently unavailable. Please try again later."
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OCR_SERVICE_CONFIG_ERROR: str = "OCR service configuration error. Please contact support."
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OCR_UNEXPECTED_ERROR: str = "An unexpected error occurred during OCR processing."
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OCR_QUOTA_EXCEEDED: str = "OCR service quota exceeded. Please try again later."
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OCR_INVALID_FILE_TYPE: str = "Invalid file type. Supported types: {types}"
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OCR_FILE_TOO_LARGE: str = "File too large. Maximum size: {size}MB"
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OCR_PROCESSING_ERROR: str = "Error processing image: {detail}"
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# --- Gemini AI Settings ---
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GEMINI_MODEL_NAME: str = "gemini-2.0-flash" # The model to use for OCR
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GEMINI_SAFETY_SETTINGS: dict = {
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"HARM_CATEGORY_HATE_SPEECH": "BLOCK_MEDIUM_AND_ABOVE",
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"HARM_CATEGORY_DANGEROUS_CONTENT": "BLOCK_MEDIUM_AND_ABOVE",
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"HARM_CATEGORY_HARASSMENT": "BLOCK_MEDIUM_AND_ABOVE",
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"HARM_CATEGORY_SEXUALLY_EXPLICIT": "BLOCK_MEDIUM_AND_ABOVE",
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}
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GEMINI_GENERATION_CONFIG: dict = {
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"candidate_count": 1,
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"max_output_tokens": 2048,
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"temperature": 0.9,
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"top_p": 1,
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"top_k": 1
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}
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# --- API Settings ---
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API_PREFIX: str = "/api" # Base path for all API endpoints
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API_OPENAPI_URL: str = "/api/openapi.json"
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API_DOCS_URL: str = "/api/docs"
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API_REDOC_URL: str = "/api/redoc"
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CORS_ORIGINS: list[str] = [
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"http://localhost:5173", # Frontend dev server
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"http://localhost:5174", # Alternative Vite port
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"http://localhost:8000", # Backend server
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"http://127.0.0.1:5173", # Frontend with IP
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"http://127.0.0.1:5174", # Alternative Vite with IP
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"http://127.0.0.1:8000", # Backend with IP
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]
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FRONTEND_URL: str = "http://localhost:5173" # URL for the frontend application
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# --- API Metadata ---
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API_TITLE: str = "Shared Lists API"
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API_DESCRIPTION: str = "API for managing shared shopping lists, OCR, and cost splitting."
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API_VERSION: str = "0.1.0"
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ROOT_MESSAGE: str = "Welcome to the Shared Lists API! Docs available at /api/docs"
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# --- Logging Settings ---
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LOG_LEVEL: str = "INFO"
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LOG_FORMAT: str = "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
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# --- Health Check Settings ---
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HEALTH_STATUS_OK: str = "ok"
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HEALTH_STATUS_ERROR: str = "error"
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# --- HTTP Status Messages ---
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HTTP_400_DETAIL: str = "Bad Request"
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HTTP_401_DETAIL: str = "Unauthorized"
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HTTP_403_DETAIL: str = "Forbidden"
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HTTP_404_DETAIL: str = "Not Found"
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HTTP_422_DETAIL: str = "Unprocessable Entity"
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HTTP_429_DETAIL: str = "Too Many Requests"
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HTTP_500_DETAIL: str = "Internal Server Error"
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HTTP_503_DETAIL: str = "Service Unavailable"
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# --- Database Error Messages ---
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DB_CONNECTION_ERROR: str = "Database connection error"
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DB_INTEGRITY_ERROR: str = "Database integrity error"
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DB_TRANSACTION_ERROR: str = "Database transaction error"
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DB_QUERY_ERROR: str = "Database query error"
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# --- Auth Error Messages ---
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AUTH_INVALID_CREDENTIALS: str = "Invalid username or password"
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AUTH_NOT_AUTHENTICATED: str = "Not authenticated"
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AUTH_JWT_ERROR: str = "JWT token error: {error}"
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AUTH_JWT_UNEXPECTED_ERROR: str = "Unexpected JWT error: {error}"
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AUTH_HEADER_NAME: str = "WWW-Authenticate"
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AUTH_HEADER_PREFIX: str = "Bearer"
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# OAuth Settings
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GOOGLE_CLIENT_ID: str = ""
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GOOGLE_CLIENT_SECRET: str = ""
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GOOGLE_REDIRECT_URI: str = "http://localhost:8000/auth/google/callback"
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APPLE_CLIENT_ID: str = ""
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APPLE_TEAM_ID: str = ""
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APPLE_KEY_ID: str = ""
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APPLE_PRIVATE_KEY: str = ""
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APPLE_REDIRECT_URI: str = "http://localhost:8000/auth/apple/callback"
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# Session Settings
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SESSION_SECRET_KEY: str = "your-session-secret-key" # Change this in production
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ACCESS_TOKEN_EXPIRE_MINUTES: int = 30
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class Config:
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env_file = ".env"
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env_file_encoding = 'utf-8'
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extra = "ignore"
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settings = Settings()
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# Validation for critical settings
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if settings.DATABASE_URL is None:
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raise ValueError("DATABASE_URL environment variable must be set.")
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# Enforce secure secret key
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if not settings.SECRET_KEY:
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raise ValueError("SECRET_KEY environment variable must be set. Generate a secure key using: openssl rand -hex 32")
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# Validate secret key strength
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if len(settings.SECRET_KEY) < 32:
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raise ValueError("SECRET_KEY must be at least 32 characters long for security")
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if settings.GEMINI_API_KEY is None:
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logger.error("CRITICAL: GEMINI_API_KEY environment variable not set. Gemini features will be unavailable.")
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else:
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# Optional: Log partial key for confirmation (avoid logging full key)
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logger.info(f"GEMINI_API_KEY loaded (starts with: {settings.GEMINI_API_KEY[:4]}...).") |