"""
Application configuration from environment variables.
"""

from pydantic_settings import BaseSettings
from functools import lru_cache


class Settings(BaseSettings):
    """Application settings loaded from environment variables."""

    # MongoDB
    MONGODB_URL: str = "mongodb://admin:password123@localhost:27022/"
    DB_NAME: str = "web_inspector"

    # Redis
    REDIS_URL: str = "redis://localhost:6392"

    # Inspection
    URL_FETCH_TIMEOUT: int = 10
    CATEGORY_TIMEOUT: int = 60
    MAX_HTML_SIZE: int = 10485760  # 10MB

    # Site inspection
    SITE_MAX_PAGES: int = 500
    SITE_MAX_DEPTH: int = 2
    SITE_CONCURRENCY: int = 8

    # Batch inspection
    BATCH_MAX_URLS: int = 200
    BATCH_CONCURRENCY: int = 8

    # Application
    PROJECT_NAME: str = "Web Inspector API"

    class Config:
        env_file = ".env"
        case_sensitive = True


@lru_cache()
def get_settings() -> Settings:
    return Settings()