From 581dc3b5b16e3dd1823bbf95357e5e8c49b0c5e0 Mon Sep 17 00:00:00 2001
From: Adam Soltys <asoltys@gmail.com>
Date: Tue, 3 Sep 2024 14:34:08 -0700
Subject: support multiple token versions

---
 lib/ecash.ts | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

(limited to 'lib')

diff --git a/lib/ecash.ts b/lib/ecash.ts
index 4ce8912a..8f91e70c 100644
--- a/lib/ecash.ts
+++ b/lib/ecash.ts
@@ -4,17 +4,16 @@ import {
   CashuWallet,
   getDecodedToken,
   getEncodedToken,
-  MintQuoteState,
+  getEncodedTokenV4,
 } from "@cashu/cashu-ts";
 import { g, s } from "$lib/db";
-import ln from "$lib/ln";
 import { fail } from "$lib/utils";
 
 let m = new CashuMint(config.mintUrl);
 let w = new CashuWallet(m);
 
-let enc = (proofs) =>
-  getEncodedToken({
+let enc = (proofs, v = 4) =>
+  (v === 4 ? getEncodedTokenV4 : getEncodedToken)({
     token: [{ mint: config.mintUrl, proofs }],
   });
 
@@ -27,6 +26,12 @@ let ext = async (mint) => {
   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);
@@ -39,16 +44,18 @@ export async function claim(token) {
   return rcvd.reduce((a, b) => a + b.amount, 0);
 }
 
-export async function mint(amount) {
+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));
-  await s(`cash`, enc(returnChange));
-  return enc(rcvd);
+  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 { mint, proofs } = dec(token);
+  let o = dec(token);
+  let { mint, proofs } = o;
   let total = proofs.reduce((a, b) => a + b.amount, 0);
 
   let external = await ext(mint);
-- 
cgit v1.2.3