stacker.news/prisma/migrations/20220830183739_create_invoice/migration.sql

35 lines
1.3 KiB
PL/PgSQL

CREATE OR REPLACE FUNCTION create_invoice(hash TEXT, bolt11 TEXT, expires_at timestamp(3) without time zone, msats_req INTEGER, user_id INTEGER)
RETURNS "Invoice"
LANGUAGE plpgsql
AS $$
DECLARE
invoice "Invoice";
limit_reached BOOLEAN;
too_much BOOLEAN;
BEGIN
PERFORM ASSERT_SERIALIZED();
SELECT count(*) >= 10, sum("msatsRequested")+max(users.msats)+msats_req > 1000000000 INTO limit_reached, too_much
FROM "Invoice"
JOIN users on "userId" = users.id
WHERE "userId" = user_id AND "expiresAt" > now_utc() AND "confirmedAt" is null AND cancelled = false;
-- prevent more than 10 pending invoices
IF limit_reached THEN
RAISE EXCEPTION 'SN_INV_PENDING_LIMIT';
END IF;
-- prevent pending invoices + msats from exceeding 1,000,000 sats
IF too_much THEN
RAISE EXCEPTION 'SN_INV_EXCEED_BALANCE';
END IF;
INSERT INTO "Invoice" (hash, bolt11, "expiresAt", "msatsRequested", "userId", created_at, updated_at)
VALUES (hash, bolt11, expires_at, msats_req, user_id, now_utc(), now_utc()) RETURNING * INTO invoice;
INSERT INTO pgboss.job (name, data, retrylimit, retrybackoff, startafter)
VALUES ('checkInvoice', jsonb_build_object('hash', hash), 21, true, now() + interval '10 seconds');
RETURN invoice;
END;
$$;