import os
from dotenv import load_dotenv

load_dotenv()

APP_NAME = os.getenv("APP_NAME", "AI Patient Onboarding")
APP_ENV = os.getenv("APP_ENV", "development")
APP_VERSION = os.getenv("APP_VERSION", "1.0.0")

DATABASE_URL = os.getenv("DATABASE_URL", "sqlite:///./data/onboarding.db")

# AI Providers
OPENAI_API_KEY = os.getenv("OPENAI_API_KEY", "")
OPENAI_MODEL = os.getenv("OPENAI_MODEL", "gpt-4o-mini")

ANTHROPIC_API_KEY = os.getenv("ANTHROPIC_API_KEY", "")
ANTHROPIC_MODEL = os.getenv("ANTHROPIC_MODEL", "claude-sonnet-4-5-20250929")

GEMINI_API_KEY = os.getenv("GEMINI_API_KEY", "")
GEMINI_MODEL = os.getenv("GEMINI_MODEL", "gemini-3.6-flash")

SARVAM_API_KEY = os.getenv("SARVAM_API_KEY", "")

# Security Keys
API_SECRET_KEY = os.getenv("API_SECRET_KEY", "skyheal_secure_api_key_2026")


# Destination Hospital EHR / Patient API
PATIENT_API_BASE_URL = os.getenv("PATIENT_API_BASE_URL", "")
PATIENT_API_TOKEN = os.getenv("PATIENT_API_TOKEN", "")

# CORS Allowed Origins Configuration
DEFAULT_CORS_ORIGINS = [
    "http://localhost:3000",
    "http://localhost:5173",
    "http://127.0.0.1:3000",
    "http://127.0.0.1:5173",
    "http://localhost:8000",
    "http://127.0.0.1:8000",
    "http://localhost:5500",
    "http://127.0.0.1:5500",
    "http://localhost:5501",
    "http://127.0.0.1:5501",
    "http://localhost:8080",
    "http://127.0.0.1:8080",
    "null",
    "https://onboarding.skyheal.ai",
]

cors_raw = os.getenv("CORS_ORIGINS", "")
if cors_raw:
    CORS_ORIGINS = [origin.strip() for origin in cors_raw.split(",") if origin.strip()]
else:
    CORS_ORIGINS = DEFAULT_CORS_ORIGINS


class Settings:
    ai_timeout_seconds: float = float(os.getenv("AI_TIMEOUT_SECONDS", "3.5"))
    session_timeout_minutes: int = int(os.getenv("SESSION_TIMEOUT_MINUTES", "30"))
    max_message_length: int = int(os.getenv("MAX_MESSAGE_LENGTH", "5000"))
    max_response_words: int = int(os.getenv("MAX_RESPONSE_WORDS", "20"))
    llm_retry_count: int = int(os.getenv("LLM_RETRY_COUNT", "2"))
    supported_languages: list[str] = ["en", "ta", "hi", "te", "kn"]


settings = Settings()