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from fastapi import FastAPI, HTTPException
from fastapi.middleware.cors import CORSMiddleware
import stripe
import os
from dotenv import load_dotenv
import logging

# Configure logging
logging.basicConfig(
    level=logging.INFO,
    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
)
logger = logging.getLogger(__name__)

# Load environment variables
load_dotenv()

# Initialize Stripe
stripe.api_key = os.getenv("STRIPE_SECRET","").strip()
logger.info("Stripe API initialized")

app = FastAPI()

# Enable CORS
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

@app.on_event("startup")
async def startup_event():
    logger.info("🚀 FastAPI application starting up...")
    logger.info(f"Stripe API Key configured: {bool(stripe.api_key)}")

@app.get("/")
def home():
    logger.info("Home endpoint hit")
    return {"message": "Stripe FastAPI backend is running ✅", "status": "healthy"}

@app.get("/health")
def health():
    logger.info("Health check endpoint hit")
    return {"status": "healthy"}

@app.post("/create-payment-intent")
async def create_payment_intent(data: dict):
    try:
        logger.info(f"Creating payment intent with data: {data}")
        amount = data.get("amount")
        currency = data.get("currency", "usd")

        if not amount:
            raise HTTPException(status_code=400, detail="Amount is required")

        intent = stripe.PaymentIntent.create(
            amount=int(amount),
            currency=currency,
            automatic_payment_methods={"enabled": True},
        )
        logger.info(f"Payment intent created successfully: {intent.id}")
        return {"client_secret": intent.client_secret}

    except stripe.error.StripeError as e:
        logger.error(f"Stripe error: {str(e)}")
        raise HTTPException(status_code=400, detail=str(e))
    except Exception as e:
        logger.error(f"Unexpected error: {str(e)}")
        raise HTTPException(status_code=400, detail=str(e))