lnbits-legend/lnbits/extensions/splitpayments/tasks.py
Tiago Vasconcelos 3cdb1ab180 mergeable
2023-01-06 16:00:26 +00:00

76 lines
2.3 KiB
Python

import asyncio
from loguru import logger
from lnbits.core.models import Payment
from lnbits.core.services import create_invoice, pay_invoice
from lnbits.helpers import get_current_extension_name
from lnbits.tasks import register_invoice_listener
from .crud import get_targets
async def wait_for_paid_invoices():
invoice_queue = asyncio.Queue()
register_invoice_listener(invoice_queue, get_current_extension_name())
while True:
payment = await invoice_queue.get()
await on_invoice_paid(payment)
async def on_invoice_paid(payment: Payment) -> None:
if payment.extra.get("tag") == "splitpayments" or payment.extra.get("splitted"):
# already a splitted payment, ignore
return
targets = await get_targets(payment.wallet_id)
if not targets:
return
# validate target percentages
total_percent = sum([target.percent for target in targets])
if total_percent > 100:
logger.error("splitpayment: total percent adds up to more than 100%")
return
logger.trace(f"splitpayments: performing split payments to {len(targets)} targets")
if payment.extra.get("amount"):
amount_to_split = (payment.extra.get("amount") or 0) * 1000
else:
amount_to_split = payment.amount
if not amount_to_split:
logger.error("splitpayments: no amount to split")
return
for target in targets:
tagged = target.tag in payment.extra
if tagged or target.percent > 0:
if tagged:
memo = f"Pushed tagged payment to {target.alias}"
amount_msat = int(amount_to_split)
else:
amount_msat = int(amount_to_split * target.percent / 100)
memo = f"Split payment: {target.percent}% for {target.alias or target.wallet}"
payment_hash, payment_request = await create_invoice(
wallet_id=target.wallet,
amount=int(amount_msat / 1000),
internal=True,
memo=memo,
)
extra = {**payment.extra, "tag": "splitpayments", "splitted": True}
await pay_invoice(
payment_request=payment_request,
wallet_id=payment.wallet_id,
extra=extra,
)