Max fills the amount in the unit the field shows: in fiat that's money floored to the cent (so it never parses back above the maximum), not a BTC figure under a CAD label. One ctx.amountField helper for the ark send/LN Max, the gift Max and fixed-amount zap/BOLT 12 fills

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 4 insertions, 4 deletions

diff --git a/src/features/zaps.js b/src/features/zaps.js
index a23ecdd..d327f9d 100644
--- a/src/features/zaps.js
+++ b/src/features/zaps.js
@@ -94,7 +94,7 @@ export function zapsFeature(ctx) {
       const off = target.offer;
       if (off.currency) throw new Error(t('bolt12Currency', { currency: off.currency }));
       const fixedSat = off.amountMsat ? Number((off.amountMsat + 999n) / 1000n) : null;
-      if (fixedSat) z.amount = getUnit() === 'sats' ? String(fixedSat) : (fixedSat / 1e8).toFixed(8);
+      if (fixedSat) z.amount = ctx.amountField(fixedSat);
       z.params = { minSendable: 1000, maxSendable: 21e15, commentAllowed: 0, allowsNostr: false, fixedSat };
       z.status = 'ready';
       render();
@@ -118,7 +118,7 @@ export function zapsFeature(ctx) {
         return;
       }
       const fixedSat = n.priceType === 0 && n.priceSats ? n.priceSats : null;
-      if (fixedSat) z.amount = getUnit() === 'sats' ? String(fixedSat) : (fixedSat / 1e8).toFixed(8);
+      if (fixedSat) z.amount = ctx.amountField(fixedSat);
       z.params = { minSendable: 1000, maxSendable: 21e15, commentAllowed: 100, allowsNostr: false, fixedSat };
       z.status = 'ready';
       render();
@@ -165,7 +165,7 @@ export function zapsFeature(ctx) {
     // exactly like a fixed-amount BOLT 12 offer.
     if (params.minSendable === params.maxSendable && params.minSendable >= 1000) {
       params.fixedSat = Math.ceil(params.minSendable / 1000);
-      z.amount = getUnit() === 'sats' ? String(params.fixedSat) : (params.fixedSat / 1e8).toFixed(8);
+      z.amount = ctx.amountField(params.fixedSat);
     }
     z.params = params;
     z.status = 'ready';
@@ -363,7 +363,7 @@ export function zapsFeature(ctx) {
           !p.fixedSat && (hook('lnMaxSendSat') || 0) > 0
             ? h('button', { type: 'button', onClick: () => {
                 const sat = hook('lnMaxSendSat');
-                z.amount = getUnit() === 'sats' ? String(sat) : (sat / 1e8).toFixed(8);
+                z.amount = ctx.amountField(sat);
                 render();
               } }, t('max'))
             : null,