WIP: Improve Nostr user metadata fetching

Use a multi-step process, caching results in between, while informing
the user about the current steps/progress

app/components/settings/nostr_edit_profile_component.rb

@@ -3,25 +3,14 @@
 module Settings
   class NostrEditProfileComponent < ViewComponent::Base
     def initialize(user:, profile_event:)
-      if profile_event.present?
       @user = user
       @profile_event = profile_event
-        @profile = JSON.parse(profile_event["content"])
+      @profile = {}
+      @display_name = nil
+
+      if profile_event.present? && profile_event["content"].present?
+        @profile = JSON.parse(profile_event["content"]) rescue {}
         @display_name = @profile["display_name"] || @profile["displayName"]
-
-        if @profile["nip05"].present? && @profile["nip05"] == @user.address
-          # "Your profile's Nostr address is set to <strong>#{ user_address }</strong>"
-        else
-          # "Your profile's Nostr address is not set to <strong>#{ user_address }</strong> yet"
-        end
-
-        if @profile["lud16"].present? && @profile["lud16"] == @user.address
-          # "Your profile's Lightning address is set to <strong>#{ user_address }</strong>"
-        else
-          # "Your profile's Lightning address is not set to <strong>#{ user_address }</strong> yet"
-        end
-      else
-        # "We could not find a profile for your public key"
       end
     end
   end

app/components/settings/nostr_relay_status_component.rb

@@ -2,9 +2,11 @@
 
 module Settings
   class NostrRelayStatusComponent < ViewComponent::Base
-    def initialize(nip65_event:)
+    def initialize(nip65_event:, relay_url: Setting.nostr_relay_url)
+      @relay_url = relay_url
+
       if nip65_event.present?
-        if relay_urls(nip65_event).any? { |r| r.include?("wss://nostr.kosmos.org") }
+        if relay_urls(nip65_event).include?(@relay_url)
           @text = "You have a relay list, and the Kosmos relay is part of it"
           @icon_name = "check-circle"
           @icon_color = "emerald-500"

app/controllers/settings_controller.rb

@@ -9,7 +9,7 @@ class SettingsController < ApplicationController
   ]
   before_action :set_user, only: [
     :show, :update, :update_email, :reset_email_password,
-    :fetch_nostr_user_metadata
+    :fetch_nostr_metadata
   ]
 
   def index
@@ -148,26 +148,45 @@ class SettingsController < ApplicationController
     }
   end
 
-  def fetch_nostr_user_metadata
+  def fetch_nostr_metadata
-    if @user.nostr_pubkey.present?
+    return render plain: "no pubkey", status: :bad_request if @user.nostr_pubkey.blank?
-      outbox_relay_urls = nil
 
-      # if @nip65_event = NostrManager::DiscoverUserRelays.call(pubkey: @user.nostr_pubkey)
+    cache_key = "nostr_metadata:#{@user.id}"
-      #   relay_tags = @nip65_event["tags"].select{ |t| t[0] == "r" }
-      #   outbox_relay_urls = relay_tags&.select{ |t| t[2] != "read" }&.map{ |t| t[1] }
-      # end
 
-      # @profile = NostrManager::DiscoverUserProfile.call(
+    case params[:step]
-      #   pubkey: @user.nostr_pubkey,
+    when "relays"
-      #   relays: outbox_relay_urls
+      nip65_event = NostrManager::DiscoverUserRelays.call(pubkey: @user.nostr_pubkey)
-      # )
+      write_relays = nip65_event ? extract_write_relays(nip65_event) : []
-      @profile = {"content"=>"{\"name\":\"jimmy\",\"picture\":\"https://storage.kosmos.org/jimmy/public/shares/241028-1117-tony.jpg\",\"banner\":\"https://storage.kosmos.org/raucao/public/shares/240604-1517-1500x500.jpg\",\"nip05\":\"jimmy@kosmos.org\",\"lud16\":\"jimmy@kosmos.org\",\"pubkey\":\"07e188a1ff87ce171d517b8ed2bb7a31b1d3453a0db3b15379ec07b724d232f3\",\"display_name\":\"Jimmy\",\"displayName\":\"Jimmy\",\"about\":\"I don't exist. Follow at your own peril.\"}", "created_at"=>1730114246, "id"=>"6b15b1308a61ee837bd3b50319978314650e435891c259f4ea499f819f35a4f6", "kind"=>0, "pubkey"=>"07e188a1ff87ce171d517b8ed2bb7a31b1d3453a0db3b15379ec07b724d232f3", "sig"=>"4f681f4b95646bbf88a6eae9ca92c0f2ce5effecfa017556a23490f91a99243aedf81d956ee2466ed64fecb9a03b6b89cd80ff116df0178830977e203867d7ae", "tags"=>[]}
+
-      # @profile = {"content"=>"{\"name\":\"jimmy\",\"nip05\":\"jimmy@kosmos.org\",\"lud16\":\"jimmy@kosmos.org\",\"pubkey\":\"07e188a1ff87ce171d517b8ed2bb7a31b1d3453a0db3b15379ec07b724d232f3\",\"display_name\":\"Jimmy\",\"displayName\":\"Jimmy\",\"about\":\"I don't exist. Follow at your own peril.\"}", "created_at"=>1730114246, "id"=>"6b15b1308a61ee837bd3b50319978314650e435891c259f4ea499f819f35a4f6", "kind"=>0, "pubkey"=>"07e188a1ff87ce171d517b8ed2bb7a31b1d3453a0db3b15379ec07b724d232f3", "sig"=>"4f681f4b95646bbf88a6eae9ca92c0f2ce5effecfa017556a23490f91a99243aedf81d956ee2466ed64fecb9a03b6b89cd80ff116df0178830977e203867d7ae", "tags"=>[]}
+      if nip65_event && write_relays.any? && stale?(nip65_event)
-    else
+        auth_event = NostrManager::DiscoverUserRelays.call(
-      @relays, @profile = [nil, nil]
+          pubkey: @user.nostr_pubkey, relays: write_relays
+        )
+        nip65_event = auth_event if auth_event
+        write_relays = extract_write_relays(nip65_event) if auth_event
       end
 
-    render partial: 'nostr_user_metadata'
+      Rails.cache.write("#{cache_key}:nip65", nip65_event, expires_in: 5.minutes)
+      Rails.cache.write("#{cache_key}:write_relays", write_relays, expires_in: 5.minutes)
+      render json: { next: "profile" }
+
+    when "profile"
+      write_relays = Rails.cache.read("#{cache_key}:write_relays") || []
+      relays = write_relays.any? ? write_relays : nil
+      profile = NostrManager::DiscoverUserProfile.call(
+        pubkey: @user.nostr_pubkey, relays: relays
+      )
+      Rails.cache.write("#{cache_key}:profile", profile, expires_in: 5.minutes)
+      render json: { next: "render" }
+
+    when "render", nil
+      @nip65_event = Rails.cache.read("#{cache_key}:nip65")
+      @profile     = Rails.cache.read("#{cache_key}:profile")
+      render partial: "nostr_metadata", formats: :html
+
+    else
+      render plain: "invalid step", status: :bad_request
+    end
   end
 
   private
@@ -176,6 +195,16 @@ class SettingsController < ApplicationController
       @current_section = :settings
     end
 
+    def extract_write_relays(nip65_event)
+      nip65_event["tags"]
+        .select { |t| t[0] == "r" && t[2] != "read" }
+        .map { |t| t[1] }
+    end
+
+    def stale?(event, threshold = 30.minutes)
+      Time.at(event["created_at"]) < threshold.ago
+    end
+
     def set_settings_section
       @settings_section = params[:section]
       allowed_sections = [

app/javascript/controllers/nostr_metadata_controller.js

@@ -0,0 +1,50 @@
+import { Controller } from "@hotwired/stimulus"
+
+export default class extends Controller {
+  static targets = [ "status", "loading", "content" ]
+  static values  = { url: String }
+
+  connect () {
+    this.runStep("relays")
+  }
+
+  async runStep (step) {
+    const messages = {
+      relays:  "Looking up your relay list…",
+      profile: "Fetching your profile…",
+      blossom: "Fetching your media server list…",
+      render:  null
+    }
+
+    if (messages[step]) {
+      this.statusTarget.textContent = messages[step]
+    }
+
+    try {
+      const headers = (step === "render")
+        ? { "Accept": "text/html" }
+        : { "Accept": "application/json" }
+
+      const res = await fetch(`${this.urlValue}?step=${step}`, { headers })
+
+      if (!res.ok) {
+        throw new Error(`HTTP ${res.status}`)
+      }
+
+      if (step === "render") {
+        const html = await res.text()
+        this.loadingTarget.classList.add("hidden")
+        this.contentTarget.classList.remove("hidden")
+        this.contentTarget.innerHTML = html
+      } else {
+        const data = await res.json()
+        if (data.next) {
+          this.runStep(data.next)
+        }
+      }
+    } catch (error) {
+      console.warn("Nostr metadata fetch failed:", error.message)
+      this.statusTarget.textContent = "Something went wrong. Please reload."
+    }
+  }
+}

app/services/nostr_manager/discover_user_relays.rb

@@ -1,8 +1,8 @@
 module NostrManager
   class DiscoverUserRelays < NostrManagerService
-    def initialize(pubkey:)
+    def initialize(pubkey:, relays: nil)
       @pubkey = pubkey
-      @relays = Setting.nostr_discovery_relays
+      @relays = relays.present? ? relays : Setting.nostr_discovery_relays
     end
 
     def call

app/views/settings/_nostr.html.erb

@@ -88,8 +88,15 @@
   </section>
 
   <% if current_user.nostr_pubkey.present? %>
-    <%= turbo_frame_tag "nostr_user_metadata", src: nostr_user_metadata_settings_path do %>
+    <div data-controller="nostr-metadata"
-      <p>Loading...</p>
+         data-nostr-metadata-url-value="<%= nostr_metadata_settings_path %>">
-    <% end %>
+      <div data-nostr-metadata-target="loading"
+           class="flex flex-col items-center justify-center py-16">
+        <div class="mb-4 h-12 w-12"></div>
+        <p data-nostr-metadata-target="status"
+           class="text-gray-500 animate-pulse">Loading…</p>
+      </div>
+      <div data-nostr-metadata-target="content" class="hidden"></div>
+    </div>
   <% end %>
 </div>

app/views/settings/_nostr_metadata.html.erb

@@ -0,0 +1,25 @@
+<section class="">
+  <h3>Profile</h3>
+  <%= render Settings::NostrProfileStatusComponent.new(
+    profile_event: @profile,
+    user_address: current_user.address
+  ) %>
+  <div class="mt-8" data-controller="modal" data-action="keydown.esc->modal#close">
+    <button data-action="click->modal#open" class="btn-md btn-blue w-full sm:w-auto">
+      Edit profile
+    </button>
+    <%= render ModalComponent.new(show_close_button: false) do %>
+      <%= render Settings::NostrEditProfileComponent.new(
+        user: current_user,
+        profile_event: @profile
+      ) %>
+    <% end %>
+  </div>
+</section>
+
+<section class="mb-8 sm:mb-12">
+  <h3>Relays</h3>
+  <%= render Settings::NostrRelayStatusComponent.new(
+    nip65_event: @nip65_event
+  ) %>
+</section>

app/views/settings/_nostr_user_metadata.html.erb

@@ -1,27 +0,0 @@
-<%= turbo_frame_tag "nostr_user_metadata" do %>
-  <section>
-    <h3>Relays</h3>
-    <%= render Settings::NostrRelayStatusComponent.new(
-      nip65_event: @nip65_event
-    ) %>
-  </section>
-
-  <section>
-    <h3>Profile</h3>
-    <%= render Settings::NostrProfileStatusComponent.new(
-      profile_event: @profile,
-      user_address: current_user.address
-    ) %>
-    <div class="mt-8" data-controller="modal" data-action="keydown.esc->modal#close">
-      <button data-action="click->modal#open" class="btn-md btn-blue w-full sm:w-auto">
-        Edit profile
-      </button>
-      <%= render ModalComponent.new(show_close_button: false) do %>
-        <%= render Settings::NostrEditProfileComponent.new(
-          user: current_user,
-          profile_event: @profile
-        ) %>
-      <% end %>
-    </div>
-  </section>
-<% end %>

config/routes.rb

@@ -68,7 +68,7 @@ Rails.application.routes.draw do
       post 'reset_email_password'
       post 'set_nostr_pubkey'
       delete 'nostr_pubkey', to: 'settings#remove_nostr_pubkey'
-      get 'fetch_nostr_user_metadata', as: 'nostr_user_metadata'
+      get 'fetch_nostr_metadata', as: 'nostr_metadata'
     end
   end