"""Configuration management for the network scanner application."""

from typing import List
from pydantic_settings import BaseSettings
from pydantic import Field


class Settings(BaseSettings):
    """Application settings loaded from environment variables."""
    
    # Application
    app_name: str = Field(default="Network Scanner", alias="APP_NAME")
    app_version: str = Field(default="1.0.0", alias="APP_VERSION")
    debug: bool = Field(default=False, alias="DEBUG")
    
    # Database
    database_url: str = Field(default="sqlite:///./network_scanner.db", alias="DATABASE_URL")
    
    # Scanning
    default_scan_timeout: int = Field(default=3, alias="DEFAULT_SCAN_TIMEOUT")
    max_concurrent_scans: int = Field(default=50, alias="MAX_CONCURRENT_SCANS")
    enable_nmap: bool = Field(default=True, alias="ENABLE_NMAP")
    
    # Network
    default_network_range: str = Field(default="192.168.1.0/24", alias="DEFAULT_NETWORK_RANGE")
    scan_private_networks_only: bool = Field(default=True, alias="SCAN_PRIVATE_NETWORKS_ONLY")
    
    # API
    api_prefix: str = Field(default="/api", alias="API_PREFIX")
    cors_origins: List[str] = Field(default=["http://localhost:3000"], alias="CORS_ORIGINS")
    
    # Logging
    log_level: str = Field(default="INFO", alias="LOG_LEVEL")
    log_file: str = Field(default="logs/network_scanner.log", alias="LOG_FILE")
    
    class Config:
        """Pydantic configuration."""
        env_file = ".env"
        case_sensitive = False


# Global settings instance
settings = Settings()