From 71d5d95f1b6f5dcb4a1d66e234a889c30fa02e3f Mon Sep 17 00:00:00 2001
From: Adam Soltys <adam@coinos.io>
Date: Sun, 17 Nov 2024 00:20:01 -0800
Subject: handle blank offers

---
 src/components/Numpad.svelte                       |  2 +-
 src/lib/parse.ts                                   |  5 +++--
 .../(app)/send/lightning/[payreq]/+page.server.ts  | 18 +++++++++++++++--
 .../(app)/send/lightning/[payreq]/+page.svelte     | 23 ++++++++--------------
 4 files changed, 28 insertions(+), 20 deletions(-)

(limited to 'src')

diff --git a/src/components/Numpad.svelte b/src/components/Numpad.svelte
index bbafc196..990fc025 100644
--- a/src/components/Numpad.svelte
+++ b/src/components/Numpad.svelte
@@ -19,7 +19,7 @@
   $: update(amount, amountFiat);
   let update = (a, f) => {
     if ($fiat) {
-      amount = Math.round(f / (rate / sats));
+      amount = f ? Math.round(f / (rate / sats)) : 0;
     } else {
       amountFiat = ((a * rate) / sats).toFixed(2);
     }
diff --git a/src/lib/parse.ts b/src/lib/parse.ts
index cdfa4d62..23759311 100644
--- a/src/lib/parse.ts
+++ b/src/lib/parse.ts
@@ -44,8 +44,9 @@ export default async (s, host) => {
 	if (t.includes(":")) t = t.split(":")[1];
 
 	if (t.toLowerCase().startsWith("lno")) {
-		const { invoice } = await get(`/offer/${t}`);
-		redirect(307, `/send/lightning/${invoice}`);
+		const { offer_amount_msat: a } = await get(`/decode/${t}`);
+		if (a) ({ invoice: t } = await post("/fetchinvoice", { offer: t }));
+		redirect(307, `/send/lightning/${t}`);
 	}
 
 	if (t.toLowerCase().startsWith("lno")) {
diff --git a/src/routes/(app)/send/lightning/[payreq]/+page.server.ts b/src/routes/(app)/send/lightning/[payreq]/+page.server.ts
index a101b803..87c9cef5 100644
--- a/src/routes/(app)/send/lightning/[payreq]/+page.server.ts
+++ b/src/routes/(app)/send/lightning/[payreq]/+page.server.ts
@@ -2,11 +2,25 @@ import { auth, fd, post } from "$lib/utils";
 import { fail, redirect } from "@sveltejs/kit";
 
 export async function load({ cookies, params }) {
-	return post("/parse", params, auth(cookies));
+	if (params.payreq.startsWith("lno")) return params;
+	const data = await post("/parse", params, auth(cookies));
+	data.payreq = params.payreq;
+	return data;
 }
 
 export const actions = {
-	setAmount: async ({ request }) => fd(request),
+	setAmount: async ({ params, request }) => {
+		const data = await fd(request);
+		const { payreq } = params;
+		const { amount } = data;
+		if (payreq.startsWith("lno")) {
+			data.payreq = (
+				await post("/fetchinvoice", { amount, offer: payreq })
+			).invoice;
+		}
+
+		return data;
+	},
 
 	send: async ({ cookies, request }) => {
 		let p;
diff --git a/src/routes/(app)/send/lightning/[payreq]/+page.svelte b/src/routes/(app)/send/lightning/[payreq]/+page.svelte
index d8bd5f8c..58508809 100644
--- a/src/routes/(app)/send/lightning/[payreq]/+page.svelte
+++ b/src/routes/(app)/send/lightning/[payreq]/+page.svelte
@@ -10,13 +10,13 @@
 
   let { data, form } = $props();
 
-  let { payreq } = $page.params;
   let {
     alias,
+    payreq,
     ourfee,
     rates,
     user: { currency },
-  } = $state(data);
+  } = $derived({ ...data, ...form });
   let a = $state();
 
   $effect(() => ($rate ||= rates[currency]));
@@ -25,12 +25,8 @@
 
   let loading = $state();
   let submit = () => (loading = true);
-  let update = () => {
-    if (form?.message?.includes("pin")) $pin = undefined;
-    loading = false;
-  };
 
-  let show;
+  let next = $state();
   let toggle = () => (show = !show);
   let amount = $derived(form?.amount || data.amount);
   let maxfee = $state(Math.max(5, Math.round(amount * 0.005)));
@@ -128,17 +124,14 @@
       {/if}
     </form>
   {:else}
-    <form
-      method="POST"
-      action="?/setAmount"
-      class="w-[300px] mx-auto"
-      use:enhance
-    >
+    <form method="POST" action="?/setAmount" class="space-y-2" use:enhance>
       <input type="hidden" value={a} name="amount" />
       <input name="rate" value={$rate} type="hidden" />
 
-      <Numpad bind:amount={a} {currency} bind:rate={$rate} />
-      <button type="submit" class="btn"> Next </button>
+      <Numpad bind:amount={a} {currency} bind:rate={$rate} submit={next} />
+      <button type="submit" class="btn" bind:this={next}
+        >{$t("payments.next")}</button
+      >
     </form>
   {/if}
 </div>
-- 
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