"""Load and validate all environment variables at startup."""
from __future__ import annotations

from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    model_config = SettingsConfigDict(
        env_prefix="LANGUARD_",
        env_file=".env",
        env_file_encoding="utf-8",
        case_sensitive=False,
        # Enable JSON parsing for complex types (list[str]) from env vars
        json_parse_ints=False,
    )

    secret_key: str
    encryption_key: str          # Fernet base64 key
    db_path: str = "./languard.db"
    servers_dir: str = "./servers"
    host: str = "0.0.0.0"
    port: int = 8000
    cors_origins: list[str] = ["http://localhost:5173"]
    log_retention_days: int = 7
    metrics_retention_days: int = 30
    player_history_retention_days: int = 90
    jwt_expire_hours: int = 24
    login_rate_limit: str = "5/minute"
    log_level: str = "INFO"

    # Game-specific defaults (used by adapters, not core)
    arma3_default_exe: str = "C:/Arma3Server/arma3server_x64.exe"


settings = Settings()