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from fastapi import APIRouter, HTTPException, status
from typing import List
from .Model import Payment
from App.Users.Model import User
from App.Plans.Model import Plan
from .Schema import (
CreatePaymentRequest,
UpdatePaymentStatusRequest,
PaymentResponse,
UpdatePaymentUserRequest,
BaseResponse,
PaymentListResponse,
)
from .Schema import PaymentMethod
payment_router = APIRouter(tags=["Payments"])
@payment_router.post("/payment/create", response_model=BaseResponse)
async def create_payment(request: CreatePaymentRequest, internal=False):
# If payment method is "Lipa Number", transaction_id is required
if (
request.payment_method == PaymentMethod.LIPA_NUMBER
and not request.transaction_id
):
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail="Transaction ID is required for Lipa Number payments",
)
# Check if plan exists
plan = await Plan.get_or_none(id=request.plan_id)
if request.plan_id and not plan:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND, detail="Plan not found"
)
# Create new payment without linking a user initially
payment = await Payment.create(
user_id=request.user_id,
plan=plan,
amount=request.amount,
payment_method=request.payment_method,
transaction_id=request.transaction_id,
status="pending", # Default status
)
if internal:
return payment
# If payment method is "cash", attempt to create a subscription
if payment.payment_method == PaymentMethod.CASH:
await payment.create_subscription_if_cash()
await payment.save()
return BaseResponse(
code=200,
message="Payment created successfully",
payload={"payment_id": str(payment.id)},
)
@payment_router.get("/payment/{payment_id}", response_model=PaymentResponse)
async def get_payment(payment_id: str):
payment = await Payment.get_or_none(id=payment_id)
if not payment:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND, detail="Payment not found"
)
return PaymentResponse(
id=str(payment.id),
user_id=payment.user_id,
plan_id=payment.plan_id,
amount=payment.amount,
payment_method=payment.payment_method,
status=payment.status,
transaction_id=payment.transaction_id,
created_time=payment.created_time,
updated_time=payment.updated_time,
)
@payment_router.get("/payments/unlinked", response_model=PaymentListResponse)
async def get_unlinked_payments():
unlinked_payments = await Payment.filter(user_id=None)
result = [
PaymentResponse(
id=str(payment.id),
user_id=payment.user_id,
plan_id=payment.plan_id,
amount=payment.amount,
payment_method=payment.payment_method,
status=payment.status,
transaction_id=payment.transaction_id,
created_time=payment.created_time,
updated_time=payment.updated_time,
)
for payment in unlinked_payments
]
return PaymentListResponse(payments=result, total_count=len(result))
@payment_router.put("/payment/{payment_id}/link-user", response_model=BaseResponse)
async def link_user_to_payment(payment_id: str, request: UpdatePaymentUserRequest):
payment = await Payment.get_or_none(id=payment_id)
if not payment:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND, detail="Payment not found"
)
user = await User.get_or_none(id=request.user_id)
if not user:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND, detail="User not found"
)
# Link payment to the user
payment.user_id = request.user_id
await payment.save()
# If the payment method is "Lipa Number" or "M-Pesa", add to user's balance directly
if (
payment.payment_method in [PaymentMethod.LIPA_NUMBER, PaymentMethod.MPESA]
and not payment.plan
):
user.balance += payment.amount
await user.save()
# Update payment status to indicate it was assigned to balance
payment.status = "balance-assigned"
await payment.save()
return BaseResponse(
code=200,
message="Payment linked to user and amount added to balance successfully",
payload={
"payment_id": str(payment.id),
"user_id": request.user_id,
"new_balance": user.balance,
},
)
return BaseResponse(
code=200,
message="Payment linked to user successfully",
payload={"payment_id": str(payment.id), "user_id": request.user_id},
)
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