Co-operative exit button: the amount in sats or BTC, never fiat

Co-Authored-By: Claude Fable 5.1 <[email protected]>

1 files changed, 7 insertions, 3 deletions

diff --git a/src/features/ark.js b/src/features/ark.js
index bc5bd10..3e44805 100644
--- a/src/features/ark.js
+++ b/src/features/ark.js
@@ -38,7 +38,7 @@ import { t } from '../i18n.js';
 import { rateNow } from '../rates.js';
 import { resolveBip353, parsePaymentName, parseBip21 as parseBip21Uri } from '../bip353.js';
 import { parseZapTarget, fetchPayParams, requestInvoice } from '../lnurl.js';
-import { shortAddr, shortTxid, timeAgo, fmtSats, ARK_ICON, ARK_MARK, BITCOIN_ICON } from '../format.js';
+import { shortAddr, shortTxid, timeAgo, fmtSats, fmtBtc, ARK_ICON, ARK_MARK, BITCOIN_ICON } from '../format.js';
 
 // t?ark1… bech32m — an Ark address for this or another ASP.
 export function isArkAddress(a) { return /^t?ark1[a-z0-9]{20,}$/i.test((a || '').trim()); }
@@ -467,6 +467,10 @@ export function arkFeature(ctx) {
   // acts (a renewal, an exit) still waits for `ark`.
   let arkInited = null;
   const arkView = () => ark || arkInited;
+  // An amount in bitcoin terms whatever the display unit: sats, or BTC when
+  // that is the unit chosen — never fiat. A co-operative exit moves coins,
+  // and the number on its button is the coins' own.
+  const fmtNative = (sat) => (unitLabel() === 'BTC' ? fmtBtc(sat) + ' BTC' : fmtSats(sat) + ' sats');
   // The last server info and chain tip seen, per server, so the first paint
   // after a refresh shows the real renewal price and expiries instead of
   // "free" and "—" for the half second the info call takes.
@@ -2641,7 +2645,7 @@ export function arkFeature(ctx) {
             ctx.showSend({ fresh: true });
             ui.arkOffboardSend = { address, amount: String(coopSat), fromCoins: true, vtxoIds };
             render();
-          } }, t('arkOffboardBtn', { n: fmtAmount(coopSat) + ' ' + unitLabel() })));
+          } }, t('arkOffboardBtn', { n: fmtNative(coopSat) })));
       })(),
       h('div', { class: 'card col', style: 'gap:8px' },
         h('h4', { style: 'margin:0' }, t('arkCoinsExitTitle')),
@@ -3770,7 +3774,7 @@ export function arkFeature(ctx) {
         h('p', { class: 'small muted', style: 'margin:0' }, t('arkCoopDesc')),
         spendable > 0
           ? h('button', { class: 'btn-primary btn-block', disabled: !!ui.arkBusy, onClick: () => doArkOffboard() },
-              ui.arkBusy === 'offboard' ? h('span', { class: 'spinner sm' }) : t('arkOffboardBtn', { n: fmtAmount(spendable) + ' ' + unitLabel() }))
+              ui.arkBusy === 'offboard' ? h('span', { class: 'spinner sm' }) : t('arkOffboardBtn', { n: fmtNative(spendable) }))
           : h('div', { class: 'small faint' }, exitingSat > 0 ? t('arkExitCoopHeld') : t('arkExitNoBalance'))),
       // unilateral
       h('div', { class: 'card col', style: 'gap:8px' },