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import config from "$config";
import {
CashuMint,
CashuWallet,
getDecodedToken,
getEncodedToken,
getEncodedTokenV4,
} from "@cashu/cashu-ts";
import { g, s } from "$lib/db";
import { fail } from "$lib/utils";
let m = new CashuMint(config.mintUrl);
let w = new CashuWallet(m);
let enc = (proofs, v = 4) =>
(v === 4 ? getEncodedTokenV4 : getEncodedToken)({
token: [{ mint: config.mintUrl, proofs }],
});
let dec = (token) => getDecodedToken(token).token[0];
let ext = async (mint) => {
let issuer = new CashuMint(mint);
let { pubkey: issuerPk } = await issuer.getInfo();
let { pubkey: ourPk } = await m.getInfo();
return issuerPk !== ourPk;
};
export async function get(id, v = 4) {
let token = await g(`cash:${id}`);
if (v < 4) return enc(dec(token).proofs, 3);
return token;
}
export async function claim(token) {
let { proofs: current } = dec(await g(`cash`));
let { mint } = dec(token);
if (await ext(mint)) fail("Unable to receive from other mints");
let rcvd = await w.receive(token);
await s(`cash`, enc([...current, ...rcvd]));
return rcvd.reduce((a, b) => a + b.amount, 0);
}
export async function mint(amount, v = 4) {
let { proofs } = dec(await g(`cash`));
let { send, returnChange } = await w.send(amount, proofs);
let rcvd = await w.receive(enc(send, v));
let change = enc(returnChange, v);
await s(`cash`, change);
return enc(rcvd, v);
}
export async function check(token) {
let o = dec(token);
let { mint, proofs } = o;
let total = proofs.reduce((a, b) => a + b.amount, 0);
let external = await ext(mint);
let r = await w.checkProofsSpent(proofs);
let spent = r.reduce((a, b) => a + b.amount, 0);
return { total, spent, mint, external };
}
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