# services/inventory/app/core/config.py
"""
Inventory Service Configuration
"""

from typing import List
from pydantic import Field
from shared.config.base import BaseServiceSettings


class Settings(BaseServiceSettings):
    """Inventory service settings extending base configuration"""
    
    # Override service-specific settings
    SERVICE_NAME: str = "inventory-service"
    VERSION: str = "1.0.0"
    APP_NAME: str = "Bakery Inventory Service"
    DESCRIPTION: str = "Inventory and stock management service"
    
    # API Configuration
    API_V1_STR: str = "/api/v1"
    
    # Override database URL to use INVENTORY_DATABASE_URL
    DATABASE_URL: str = Field(
        default="postgresql+asyncpg://inventory_user:inventory_pass123@inventory-db:5432/inventory_db",
        env="INVENTORY_DATABASE_URL"
    )
    
    # Inventory-specific Redis database
    REDIS_DB: int = Field(default=3, env="INVENTORY_REDIS_DB")
    
    # File upload configuration
    MAX_UPLOAD_SIZE: int = 10 * 1024 * 1024  # 10MB
    UPLOAD_PATH: str = Field(default="/tmp/uploads", env="INVENTORY_UPLOAD_PATH")
    ALLOWED_FILE_EXTENSIONS: List[str] = [".csv", ".xlsx", ".xls", ".png", ".jpg", ".jpeg"]
    
    # Pagination
    DEFAULT_PAGE_SIZE: int = 50
    MAX_PAGE_SIZE: int = 1000
    
    # Stock validation
    MIN_QUANTITY: float = 0.0
    MAX_QUANTITY: float = 100000.0
    MIN_PRICE: float = 0.01
    MAX_PRICE: float = 10000.0
    
    # Inventory-specific cache TTL
    INVENTORY_CACHE_TTL: int = 180  # 3 minutes for real-time stock
    INGREDIENT_CACHE_TTL: int = 600  # 10 minutes
    SUPPLIER_CACHE_TTL: int = 1800   # 30 minutes
    
    # Low stock thresholds
    DEFAULT_LOW_STOCK_THRESHOLD: int = 10
    DEFAULT_REORDER_POINT: int = 20
    DEFAULT_REORDER_QUANTITY: int = 50
    
    # Expiration alert thresholds (in days)
    EXPIRING_SOON_DAYS: int = 7
    EXPIRED_ALERT_DAYS: int = 1
    
    # Barcode/QR configuration
    BARCODE_FORMAT: str = "Code128"
    QR_CODE_VERSION: int = 1


# Global settings instance
settings = Settings()