55 lines
1.6 KiB
Python
55 lines
1.6 KiB
Python
from typing import Optional, Tuple
|
|
|
|
from lnbits.bolt11 import decode as bolt11_decode
|
|
from lnbits.settings import WALLET
|
|
|
|
from .crud import create_payment
|
|
from .models import Wallet
|
|
|
|
|
|
def create_invoice(*, wallet_id: str, amount: int, memo: str) -> Tuple[str, str]:
|
|
try:
|
|
ok, checking_id, payment_request, error_message = WALLET.create_invoice(amount=amount, memo=memo)
|
|
except Exception as e:
|
|
ok, error_message = False, str(e)
|
|
|
|
if not ok:
|
|
raise Exception(error_message or "Unexpected backend error.")
|
|
|
|
amount_msat = amount * 1000
|
|
create_payment(wallet_id=wallet_id, checking_id=checking_id, amount=amount_msat, memo=memo)
|
|
|
|
return checking_id, payment_request
|
|
|
|
|
|
def pay_invoice(*, wallet: Wallet, bolt11: str, max_sat: Optional[int] = None) -> str:
|
|
try:
|
|
invoice = bolt11_decode(bolt11)
|
|
ok, checking_id, fee_msat, error_message = WALLET.pay_invoice(bolt11)
|
|
|
|
if invoice.amount_msat == 0:
|
|
raise ValueError("Amountless invoices not supported.")
|
|
|
|
if max_sat and invoice.amount_msat > max_sat * 1000:
|
|
raise ValueError("Amount in invoice is too high.")
|
|
|
|
if invoice.amount_msat > wallet.balance_msat:
|
|
raise PermissionError("Insufficient balance.")
|
|
|
|
if ok:
|
|
create_payment(
|
|
wallet_id=wallet.id, checking_id=checking_id, amount=-invoice.amount_msat, memo=invoice.description
|
|
)
|
|
|
|
except Exception as e:
|
|
ok, error_message = False, str(e)
|
|
|
|
if not ok:
|
|
raise Exception(error_message or "Unexpected backend error.")
|
|
|
|
return checking_id
|
|
|
|
|
|
def check_payment(*, checking_id: str) -> str:
|
|
pass
|