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import { db, g, s } from "$lib/db";
import { check, claim, get, mint } from "$lib/ecash";
import { err, l } from "$lib/logging";
import { credit, debit } from "$lib/payments";
import { emit } from "$lib/sockets";
import { bail, fail, getInvoice } from "$lib/utils";
import { getEncodedToken } from "@cashu/cashu-ts";
import { v4 } from "uuid";
import { PaymentType } from "$lib/types";
const { ecash: type } = PaymentType;
Error.stackTraceLimit = 100; // Set this to the desired limit
const sendCash = async ({ amount, user }) => {
const id = v4();
const hash = v4();
const p = await debit({ hash, amount, user, type });
const token = await mint(parseInt(amount));
p.memo = id;
const { id: pid } = p;
await s(`payment:${pid}`, p);
s(`cash:${id}`, token);
return { id, token, pid };
};
export default {
async save(req, res) {
const {
body: { token },
} = req;
try {
const id = v4();
await s(`cash:${id}`, token);
res.send({ id });
} catch (e) {
err(e.message);
bail(res, e.message);
}
},
async get(req, res) {
const {
params: { id },
} = req;
try {
const token = await get(id);
const status = await check(token);
res.send({ token, status });
} catch (e) {
err(e.message);
bail(res, e.message);
}
},
async claim(req, res) {
const {
body: { token },
user,
} = req;
try {
const amount = await claim(token);
let memo;
const hash = v4();
const { currency, id: uid } = user;
const rates = await g("rates");
await s(`invoice:${hash}`, {
currency,
id: hash,
hash,
rate: rates[currency],
uid,
received: 0,
});
await credit({ hash, amount, memo, ref: user.id, type });
res.send({ ok: true });
} catch (e) {
err(e.message);
bail(res, e.message);
}
},
async mint(req, res) {
const { body, user } = req;
const amount = parseInt(body.amount);
fail("disabled");
res.send(await sendCash({ amount, user }));
},
async melt(req, res) {
let {
body: { amount, bolt11: hash, preimage },
user,
} = req;
try {
amount = Math.round(amount / 1000);
const ref = preimage;
const { lightning: type } = PaymentType;
if (user.username !== "mint") fail("unauthorized");
const { id: uid, currency } = user;
const ourfee = await db.debit(
`balance:${uid}`,
`credit:${type}:${uid}`,
"Insufficient funds",
amount || 0,
0,
0,
0,
0
);
const rates = await g("rates");
const rate = rates[currency];
if (ourfee.err) fail(ourfee.err);
const id = v4();
const p = {
id,
amount: -amount,
hash,
ourfee,
uid,
confirmed: true,
rate,
currency,
type,
ref,
created: Date.now(),
};
await s(`payment:${hash}`, id);
await s(`payment:${id}`, p);
await db.lPush(`${uid}:payments`, id);
l(user.username, "sent", type, amount);
emit(user.id, "payment", p);
res.send(p);
} catch (e) {
bail(res, e.message);
}
},
async receive(req, res) {
try {
const { id, proofs, mint, memo } = req.body;
const { uid: ref } = await getInvoice(id);
const amount = await claim(
getEncodedToken({
mint,
proofs,
}),
);
await credit({ hash: id, amount, memo, ref, type });
res.send({ id });
} catch (e) {
err(e.message);
bail(res, e.message);
}
},
};
|
