From 91f0517b8d72a2a45c7f6423597808b2e4a6f0aa Mon Sep 17 00:00:00 2001
From: Adam Soltys <adam@coinos.io>
Date: Fri, 13 Mar 2026 14:25:51 -0700
Subject: delegation

---
 src/lib/ark.ts                                     | 34 +++++++++++++++++++++-
 src/routes/(app)/payment/[id]/+page.svelte         | 26 ++++++++++-------
 .../(app)/send/ark/[address]/+layout.server.ts     |  7 -----
 .../(app)/send/ark/[address]/+page.server.ts       |  7 -----
 .../[amount]/[...feeRate]/+page.server.ts          |  8 -----
 .../[address]/[amount]/[...feeRate]/+page.svelte   |  1 +
 6 files changed, 49 insertions(+), 34 deletions(-)

diff --git a/src/lib/ark.ts b/src/lib/ark.ts
index a848e5c7..42ab822a 100644
--- a/src/lib/ark.ts
+++ b/src/lib/ark.ts
@@ -7,6 +7,8 @@ export const arkServerUrl = {
   bitcoin: "https://arkade.computer",
   regtest: "http://localhost:7070",
 }[PUBLIC_COINOS_NETWORK || "regtest"];
+// Delegator runs on the coinos server, accessed via /api proxy
+const delegatorUrl = "/api";
 export const arkkey = persistLocal("arkkey", "");
 export const arkaid = persistLocal("arkaid", "");
 
@@ -53,12 +55,14 @@ export const getWallet = async () => {
   }
   if (walletInstance && walletKey === key) return walletInstance;
 
-  const { SingleKey, Wallet } = await loadArkSdk();
+  const { SingleKey, Wallet, RestDelegatorProvider } = await loadArkSdk();
   const identity = SingleKey.fromHex(key);
+  const delegatorProvider = new RestDelegatorProvider(delegatorUrl);
 
   walletInstance = await Wallet.create({
     identity,
     arkServerUrl,
+    delegatorProvider,
   });
   walletKey = key;
   return walletInstance;
@@ -305,6 +309,7 @@ const _syncTransactions = async (aid: string) => {
 
   const result = await post("/ark/sync", { transactions, aid, balance, arkAddress: walletAddr });
   cacheVaultSnapshot(); // fire-and-forget
+  delegateVtxos(); // fire-and-forget
   return result;
 };
 
@@ -496,6 +501,8 @@ export const refresh = async () => {
     const vtxos = await wallet.getVtxos({ spendableOnly: false });
     if (vtxos?.length) addProcessedVtxos(vtxos.map(vtxoKey));
   }
+
+  delegateVtxos(); // fire-and-forget
 };
 
 export const settle = async () => {
@@ -511,6 +518,31 @@ export const settle = async () => {
   // ignores renewed VTXOs (they get new txids after an Ark round)
   const vtxos = await wallet.getVtxos({ spendableOnly: false });
   if (vtxos?.length) addProcessedVtxos(vtxos.map(vtxoKey));
+
+  delegateVtxos(); // fire-and-forget
+};
+
+export const delegateVtxos = async () => {
+  try {
+    const wallet = await getWallet();
+    if (!wallet) return;
+    if (!wallet.delegatorManager) return;
+
+    const vtxos = await wallet.getVtxos({ spendableOnly: true });
+    if (!vtxos?.length) return;
+
+    const address = await wallet.getAddress();
+    const { delegated, failed } = await wallet.delegatorManager.delegate(vtxos, address);
+
+    if (delegated.length > 0) {
+      console.log("[ark] delegated", delegated.length, "vtxos for renewal");
+    }
+    if (failed.length > 0) {
+      console.warn("[ark] delegation failed for", failed.length, "groups");
+    }
+  } catch (e: any) {
+    console.warn("[ark] delegation failed:", e.message);
+  }
 };
 
 // Service Worker wallet for background fund notifications
diff --git a/src/routes/(app)/payment/[id]/+page.svelte b/src/routes/(app)/payment/[id]/+page.svelte
index 03023e8a..3b41cc4f 100644
--- a/src/routes/(app)/payment/[id]/+page.svelte
+++ b/src/routes/(app)/payment/[id]/+page.svelte
@@ -249,17 +249,6 @@
       {@render copyable("Child Txid", p.childTxid, `${expl}/tx/${p.childTxid}`)}
     {/if}
 
-    {#if canBump}
-      <div class="py-4 border-b border-base-300 space-y-2">
-        <button type="button" class="btn btn-accent w-full" onclick={bump} disabled={bumpLoading}>
-          {bumpLoading ? "Bumping..." : "Speed up"}
-        </button>
-        {#if bumpError}
-          <div class="text-red-600 text-sm text-center">{bumpError}</div>
-        {/if}
-      </div>
-    {/if}
-
     {#if type === types.lightning || type === types.bolt12}
       {@render copyable($t("payments.invoice"), hash)}
       {@render copyable($t("payments.preimage"), ref)}
@@ -277,8 +266,23 @@
       {@render copyable("Address", hash, `${expl}/address/${hash}`)}
     {/if}
 
+    {#if (type === "bitcoin" || type === "liquid") && amount < 0 && p.address}
+      {@render copyable("Address", p.address, `${expl}/address/${p.address}`)}
+    {/if}
+
     {#if path}
       {@render copyable("Path", path)}
     {/if}
+
+    {#if canBump}
+      <div class="py-4 space-y-2">
+        <button type="button" class="btn btn-accent w-full" onclick={bump} disabled={bumpLoading}>
+          {bumpLoading ? "Bumping..." : "Speed up"}
+        </button>
+        {#if bumpError}
+          <div class="text-red-600 text-sm text-center">{bumpError}</div>
+        {/if}
+      </div>
+    {/if}
   </div>
 </div>
diff --git a/src/routes/(app)/send/ark/[address]/+layout.server.ts b/src/routes/(app)/send/ark/[address]/+layout.server.ts
index 18fb7aed..b17d89bc 100644
--- a/src/routes/(app)/send/ark/[address]/+layout.server.ts
+++ b/src/routes/(app)/send/ark/[address]/+layout.server.ts
@@ -7,13 +7,6 @@ export async function load({ cookies, params, parent, url }) {
   const { address, amount } = params;
   let account = await get(`/account/${aid}`, auth(cookies));
 
-  // Fall back to custodial if cookie points to ark account
-  if (account.type === "ark" && aid !== user.id) {
-    aid = user.id;
-    account = await get(`/account/${aid}`, auth(cookies));
-    cookies.set("aid", aid, { path: "/", maxAge: 86400, httpOnly: false });
-  }
-
   let invoice;
   try {
     invoice = await get(`/invoice/${address}`);
diff --git a/src/routes/(app)/send/ark/[address]/+page.server.ts b/src/routes/(app)/send/ark/[address]/+page.server.ts
index 83a5050f..086e6daa 100644
--- a/src/routes/(app)/send/ark/[address]/+page.server.ts
+++ b/src/routes/(app)/send/ark/[address]/+page.server.ts
@@ -7,12 +7,5 @@ export async function load({ cookies, parent, url }) {
   let aid = url.searchParams.get("aid") || cookies.get("aid") || user.id;
   let account = await get(`/account/${aid}`, auth(cookies));
 
-  // Fall back to custodial if cookie points to ark account
-  if (account.type === "ark" && aid !== user.id) {
-    aid = user.id;
-    account = await get(`/account/${aid}`, auth(cookies));
-    cookies.set("aid", aid, { path: "/", maxAge: 86400, httpOnly: false });
-  }
-
   return { balance: account.balance, rate: rates[user.currency] };
 }
diff --git a/src/routes/(app)/send/ark/[address]/[amount]/[...feeRate]/+page.server.ts b/src/routes/(app)/send/ark/[address]/[amount]/[...feeRate]/+page.server.ts
index ee0775d3..37a0f068 100644
--- a/src/routes/(app)/send/ark/[address]/[amount]/[...feeRate]/+page.server.ts
+++ b/src/routes/(app)/send/ark/[address]/[amount]/[...feeRate]/+page.server.ts
@@ -9,14 +9,6 @@ export async function load({ params: { address, amount }, cookies, parent, url }
 
   let account = await get(`/account/${aid}`, auth(cookies));
 
-  // If cookie points to an ark account but user is sending TO an ark address,
-  // fall back to custodial account — ark-to-ark sends use client-side wallet
-  if (account.type === "ark" && aid !== user.id) {
-    aid = user.id;
-    account = await get(`/account/${aid}`, auth(cookies));
-    cookies.set("aid", aid, { path: "/", maxAge: 86400, httpOnly: false });
-  }
-
   if (account.type === "bitcoin") {
     const inv = await post(
       "/invoice",
diff --git a/src/routes/(app)/send/bitcoin/[address]/[amount]/[...feeRate]/+page.svelte b/src/routes/(app)/send/bitcoin/[address]/[amount]/[...feeRate]/+page.svelte
index 86bad61c..7b2c9ccf 100644
--- a/src/routes/(app)/send/bitcoin/[address]/[amount]/[...feeRate]/+page.svelte
+++ b/src/routes/(app)/send/bitcoin/[address]/[amount]/[...feeRate]/+page.svelte
@@ -281,6 +281,7 @@
 
     <form method="POST" use:enhance={handler}>
       <input name="pin" value={$pin} type="hidden" />
+      <input name="address" value={address} type="hidden" />
       <input name="hex" value={hex} type="hidden" />
       <input name="rate" value={$rate} type="hidden" />
       <input name="aid" value={account.id} type="hidden" />
-- 
cgit v1.2.3