"""Service settings — pydantic-settings, env prefix AI_, .env support."""

from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    model_config = SettingsConfigDict(env_prefix="AI_", env_file=".env", extra="ignore")

    port: int = 8420
    provider: str = "mock"
    model: str = "gemma4:31b"

    ollama_cloud_base_url: str = "https://ollama.com/v1"
    ollama_cloud_api_key: str = ""  # SecretStr adds friction here; never logged, never echoed
    local_base_url: str = "http://localhost:11434/v1"

    # "auto" sends response_format and degrades on 400; "off" never sends it
    json_mode: str = "auto"