From ce1bbdb61707ffeb5c91895b4b9bf6b32c60195a Mon Sep 17 00:00:00 2001
From: Alexis Sellier <self@cloudhead.io>
Date: Wed, 28 Jul 2021 15:34:37 +0200
Subject: [PATCH] Improve description under registration address

---
 src/Form.svelte                    |  7 ++++++-
 src/base/registrations/View.svelte | 21 ++++++++++++++++-----
 src/ens/SetName.svelte             |  3 ++-
 src/utils.ts                       |  5 +++++
 4 files changed, 29 insertions(+), 7 deletions(-)

diff --git a/src/Form.svelte b/src/Form.svelte
index b31056c67..4271024ce 100644
--- a/src/Form.svelte
+++ b/src/Form.svelte
@@ -12,6 +12,7 @@
 
 <script lang="ts">
   import { createEventDispatcher } from 'svelte';
+  import marked from 'marked';
   import { capitalize, isUrl, isAddress } from '@app/utils';
   import Address from '@app/Address.svelte';
   import type { Config } from '@app/config';
@@ -60,6 +61,10 @@
     padding-left: 1rem;
     max-width: 32rem;
   }
+  .description :global(p) {
+    padding: 0;
+    margin: 0;
+  }
 
   input.field {
     border-radius: 1rem;
@@ -122,7 +127,7 @@
         </span>
       {/if}
       <div class="description text-small faded">
-        {field.description}
+        {@html marked(field.description)}
       </div>
     </div>
   {/each}
diff --git a/src/base/registrations/View.svelte b/src/base/registrations/View.svelte
index b322028a3..5bf006a92 100644
--- a/src/base/registrations/View.svelte
+++ b/src/base/registrations/View.svelte
@@ -10,7 +10,7 @@
   import type { Field } from '@app/Form.svelte';
   import { assert } from '@app/error';
   import Error from '@app/Error.svelte';
-  import { isAddressEqual } from '@app/utils';
+  import { isAddressEqual, isReverseRecordSet } from '@app/utils';
 
   import { getRegistration } from './registrar';
   import type { EnsRecord } from './resolver';
@@ -33,6 +33,8 @@
   export let subdomain: string;
   export let config: Config;
 
+  subdomain = subdomain.toLowerCase();
+
   let state: State = { status: Status.Loading };
   let editable = false;
   let fields: Field[] = [];
@@ -41,16 +43,25 @@
 
   onMount(() => {
     getRegistration(name, config)
-      .then(r => {
+      .then(async r => {
         if (r) {
+          let reverseRecord = false;
+          if (r.address) {
+            reverseRecord = await isReverseRecordSet(r.address, name, config);
+          }
+
           fields = [
             { name: "owner", placeholder: "",
               description: "The owner and controller of this name.",
               value: r.owner, resolve: true, editable: false },
             { name: "address", placeholder: "Ethereum address, eg. 0x4a9cf21...bc91",
-              description: "The address this name resolves to. "
-              + "For this name to be correctly associated with the address, "
-              + "a reverse entry should also be set on the address.",
+              description: "The address this name resolves to. " + (
+                reverseRecord
+                  ? `The reverse record for this address is set to **${name}**`
+                  : "The reverse record for this address is **not set**. "
+                  + "For this name to be correctly associated with the address, "
+                  + "a reverse record should be set."
+              ),
               value: r.address, editable: true },
             { name: "url", label: "URL", placeholder: "https://acme.org",
               description: "A homepage or other URL associated with this name.",
diff --git a/src/ens/SetName.svelte b/src/ens/SetName.svelte
index 9174f53cb..c708e3789 100644
--- a/src/ens/SetName.svelte
+++ b/src/ens/SetName.svelte
@@ -123,7 +123,8 @@
 {:else}
   <Modal floating>
     <div slot="title">
-      🖊️
+      <div>🖊️</div>
+      <span>Reverse record</span>
     </div>
 
     <div slot="subtitle">
diff --git a/src/utils.ts b/src/utils.ts
index 36b295bd7..87215e85c 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -31,6 +31,11 @@ export interface SafeTransaction {
     operation: number;
 }
 
+export async function isReverseRecordSet(address: string, domain: string, config: Config): Promise<boolean> {
+  const name = await config.provider.lookupAddress(address);
+  return name === domain;
+}
+
 export function isAddressEqual(left: string, right: string): boolean {
   return left.toLowerCase() === right.toLowerCase();
 }