import os
from pathlib import Path
from typing import Any
from pydantic_settings import BaseSettings

class Settings(BaseSettings):
    RUNTIME_ENV: str = "development"
    ENVIRONMENT: str = "development"
    DATABASE_URL: str = "mysql+pymysql://Adithiyan:Adithiyan$2025Mysql@127.0.0.1:3306/ifixkartecommerceadmin"
    CORE_DATABASE_URL: str = "mysql+pymysql://Adithiyan:Adithiyan$2025Mysql@127.0.0.1:3306/ifixkartecommerceadmin"
    CRM_DATABASE_URL: str = "mysql+pymysql://Adithiyan:Adithiyan$2025Mysql@127.0.0.1:3306/ifixkartcrm"
    COMMERCE_DATABASE_URL: str = "mysql+pymysql://Adithiyan:Adithiyan$2025Mysql@127.0.0.1:3306/ifixkartecommerce"
    JWT_PRIVATE_KEY_PATH: str = "jwt_private.pem"
    JWT_PUBLIC_KEY_PATH: str = "jwt_public.pem"
    ALGORITHM: str = "RS512"
    ACCESS_TOKEN_EXPIRE_MIN: int = 1440
    REFRESH_TOKEN_EXPIRE_DAYS: int = 120
    PROJECT_NAME: str = "iFixKart"
    MAX_FAILED_LOGIN: int = 5
    LOCKOUT_MINUTES: int = 15
    SECRET_KEY: str
    PUBLIC_API_KEY: str
    GOOGLE_CLIENT_ID: str = ""
    GOOGLE_CLIENT_SECRET: str = ""
    GOOGLE_REDIRECT_URI: str = ""
    RAZORPAY_KEY_ID: str = "rzp_test_TTUzPFYF0hRV89"
    RAZORPAY_KEY_SECRET: str = "74tmlSkS4qK7zQaH1zclQfeH"
    RAZORPAY_WEBHOOK_SECRET: str = "6TjjXgErPG3@ZpM"
    RAZORPAY_ENABLED: bool = True

    class Config:
        env_file = ".env"
        extra = "ignore"

settings = Settings()

def load_private_key_bytes(path=None):
    p = Path(path or settings.JWT_PRIVATE_KEY_PATH)
    if not p.is_absolute():
        # resolve relative to project root (parent of app directory)
        project_root = Path(__file__).resolve().parents[3]
        p = project_root / p
    if not p.exists():
        raise FileNotFoundError(f"Private key not found at {p}")
    return p.read_bytes()

def load_public_key_bytes(path=None):
    p = Path(path or settings.JWT_PUBLIC_KEY_PATH)
    if not p.is_absolute():
        # resolve relative to project root (parent of app directory)
        project_root = Path(__file__).resolve().parents[3]
        p = project_root / p
    if not p.exists():
        raise FileNotFoundError(f"Public key not found at {p}")
    return p.read_bytes()