Let user remove nostr pubkey from account

app/assets/stylesheets/components/buttons.css

@@ -14,6 +14,10 @@
     @apply py-1 px-2 text-sm;
   }
 
+  .btn-outline {
+    @apply border-2 border-gray-100 hover:bg-gray-100;
+  }
+
   .btn-icon {
     @apply px-3;
   }

app/controllers/settings_controller.rb

@@ -88,6 +88,15 @@ class SettingsController < ApplicationController
     http_status :unprocessable_entity and return
   end
 
+  # DELETE /settings/nostr_pubkey
+  def remove_nostr_pubkey
+    current_user.update! nostr_pubkey: nil
+
+    redirect_to setting_path(:experiments), flash: {
+      success: 'Public key removed from account'
+    }
+  end
+
   private
 
     def set_main_nav_section

app/views/settings/_experiments.html.erb

@@ -6,12 +6,37 @@
        data-settings--nostr-pubkey-shared-secret-value="<%= session[:shared_secret] %>"
        data-settings--nostr-pubkey-pubkey-hex-value="<%= current_user.nostr_pubkey %>">
 
-    <p class="mt-2 <%= current_user.nostr_pubkey.present? ? "" : "hidden" %>">
+    <p class="<%= current_user.nostr_pubkey.present? ? '' : 'hidden' %> mt-2 flex gap-1">
-      <input type="text" class="w-full" value="<%= current_user.nostr_pubkey %>"
+      <input type="text" value="<%= current_user.nostr_pubkey %>" disabled
-             data-settings--nostr-pubkey-target="pubkeyBech32Input" disabled />
+             data-settings--nostr-pubkey-target="pubkeyBech32Input"
+             name="nostr_public_key" class="relative grow" />
+      <%= link_to nostr_pubkey_settings_path,
+            class: 'btn-md btn-outline text-red-700 relative shrink-0',
+            data: { turbo_method: :delete, turbo_confirm: 'Are you sure?' } do %>
+        Remove
+      <% end %>
     </p>
 
-    <% unless current_user.nostr_pubkey.present? %>
+    <% if current_user.nostr_pubkey.present? %>
+    <div class="rounded-md bg-blue-50 p-4">
+      <div class="flex">
+        <div class="flex-shrink-0">
+          <svg class="h-5 w-5 text-blue-400" viewBox="0 0 20 20" fill="currentColor" aria-hidden="true">
+            <path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a.75.75 0 000 1.5h.253a.25.25 0 01.244.304l-.459 2.066A1.75 1.75 0 0010.747 15H11a.75.75 0 000-1.5h-.253a.25.25 0 01-.244-.304l.459-2.066A1.75 1.75 0 009.253 9H9z" clip-rule="evenodd" />
+          </svg>
+        </div>
+        <div class="ml-3 flex-1">
+          <p class="text-sm text-blue-800">
+            Your user address <strong><%= current_user.address %></strong> is
+            also a Nostr address now. Use your favorite Nostr app, or for
+            example <a href="http://metadata.nostr.com" target="_blank"
+              class="underline">metadata.nostr.com</a>, to add this
+            <strong>NIP-05</strong> address to your public profile.
+          </p>
+        </div>
+      </div>
+    </div>
+    <% else %>
     <p class="my-4">
       If you use any apps on the Nostr network, you can verify your public key
       with us in order to enable Nostr-specific features for your account.
@@ -51,12 +76,14 @@
       </div>
     </div>
 
+    <% unless current_user.nostr_pubkey.present? %>
     <p class="mt-8">
-      <button class="btn-md btn-gray" disabled
+      <button class="btn-md btn-gray w-full sm:w-auto" disabled
               data-settings--nostr-pubkey-target="setPubkey"
               data-action="settings--nostr-pubkey#setPubkey">
         Get public key from browser extension
       </button>
     </p>
+    <% end %>
   </div>
 </section>

config/routes.rb

@@ -33,6 +33,7 @@ Rails.application.routes.draw do
       post 'update_email'
       post 'reset_password'
       post 'set_nostr_pubkey'
+      delete 'nostr_pubkey', to: 'settings#remove_nostr_pubkey'
     end
   end
 

spec/features/settings/experiments_spec.rb

@@ -19,4 +19,22 @@ RSpec.describe 'Experimental Settings', type: :feature do
     #   worth it for now
     # end
   end
+
+  context "With pubkey configured" do
+    before do
+      user.update! nostr_pubkey: "07e188a1ff87ce171d517b8ed2bb7a31b1d3453a0db3b15379ec07b724d232f3"
+    end
+
+    scenario 'Remove nostr pubkey from account' do
+      visit settings_experiments_path
+      expect(page).to have_field("nostr_public_key",
+        with: "07e188a1ff87ce171d517b8ed2bb7a31b1d3453a0db3b15379ec07b724d232f3",
+        disabled: true)
+
+      click_link "Remove"
+      expect(page).to_not have_field("nostr_public_key")
+      expect(page).to have_content("verify your public key")
+      expect(user.reload.nostr_pubkey).to be_nil
+    end
+  end
 end