Refactor BTCPay service and API, add lightning balance

.env.example

@@ -34,6 +34,8 @@ EJABBERD_ADMIN_URL='https://xmpp.kosmos.org/admin'
 EJABBERD_API_URL='https://xmpp.kosmos.org/api'
 
 BTCPAY_API_URL='http://localhost:23001/api/v1'
+BTCPAY_STORE_ID=''
+BTCPAY_AUTH_TOKEN=''
 
 LNDHUB_API_URL='http://localhost:3023'
 LNDHUB_PUBLIC_URL='https://lndhub.kosmos.org'

.env.test

@@ -2,13 +2,14 @@ PRIMARY_DOMAIN=kosmos.org
 
 REDIS_URL='redis://localhost:6379/0'
 
+BTCPAY_API_URL='http://btcpay.example.com/api/v1'
+BTCPAY_STORE_ID='123456'
+
 DISCOURSE_PUBLIC_URL='http://discourse.example.com'
 DISCOURSE_CONNECT_SECRET='discourse_connect_ftw'
 
 EJABBERD_API_URL='http://xmpp.example.com/api'
 
-BTCPAY_API_URL='http://btcpay.example.com/api/v1'
-
 LNDHUB_API_URL='http://localhost:3026'
 LNDHUB_PUBLIC_URL='https://lndhub.kosmos.org'
 LNDHUB_PUBLIC_KEY='024cd3be18617f39cf645851e3ba63f51fc13f0bb09e3bb25e6fd4de556486d946'

app/components/form_elements/fieldset_resettable_setting_component.rb

@@ -6,7 +6,7 @@ module FormElements
       @tag         = tag
       @positioning = :vertical
       @title       = title
-      @descripton  = description
+      @description  = description
       @key         = key.to_sym
       @type        = type
       @resettable  = is_resettable?(@key)

app/components/sidenav_link_component.html.erb

@@ -1,4 +1,8 @@
 <%= link_to @path, class: @link_class, title: (@disabled ? "Coming soon" : nil) do %>
+  <% if @icon.present? %>
   <%= render partial: "icons/#{@icon}", locals: { custom_class: @icon_class } %>
+  <% elsif @text_icon.present? %>
+  <span class="mr-3"><%= @text_icon %></span>
+  <% end %>
   <span class="truncate"><%= @name %></span>
 <% end %>

app/components/sidenav_link_component.rb

@@ -1,11 +1,13 @@
 # frozen_string_literal: true
 
 class SidenavLinkComponent < ViewComponent::Base
-  def initialize(name:, level: 1, path:, icon:, active: false, disabled: false)
+  def initialize(name:, level: 1, path:, icon: nil, text_icon: nil,
+                 active: false, disabled: false)
     @name = name
     @level = level
     @path = path
     @icon = icon
+    @text_icon = text_icon
     @active = active
     @disabled = disabled
     @link_class = class_names_link(path)

app/controllers/admin/settings/services_controller.rb

@@ -3,7 +3,7 @@ class Admin::Settings::ServicesController < Admin::SettingsController
     @service = params[:s]
 
     if @service.blank?
-      redirect_to admin_settings_services_path(params: { s: "discourse" })
+      redirect_to admin_settings_services_path(params: { s: "btcpay" })
     end
   end
 

app/controllers/api/btcpay_controller.rb

@@ -0,0 +1,21 @@
+class Api::BtcpayController < Api::BaseController
+
+  def onchain_btc_balance
+    balance = BtcpayManager::FetchOnchainWalletBalance.call
+    render json: balance
+  rescue => error
+    Rails.logger.warn "Failed to fetch BTC wallet balance: #{error.message}"
+    render json: { error: 'Failed to fetch wallet balance' },
+           status: 500
+  end
+
+  def lightning_btc_balance
+    balance = BtcpayManager::FetchLightningWalletBalance.call
+    render json: balance
+  rescue => error
+    Rails.logger.warn "Failed to fetch BTC lightning balance: #{error.message}"
+    render json: { error: 'Failed to fetch wallet balance' },
+           status: 500
+  end
+
+end

app/controllers/api/kredits_controller.rb

@@ -1,13 +0,0 @@
-class Api::KreditsController < Api::BaseController
-
-  def onchain_btc_balance
-    btcpay = BtcPay.new
-    balance = btcpay.onchain_wallet_balance
-    render json: balance
-  rescue => error
-    Rails.logger.warn "Failed to fetch kredits BTC wallet balance: #{error.message}"
-    render json: { error: 'Failed to fetch wallet balance' },
-           status: 500
-  end
-
-end

app/models/setting.rb

@@ -38,6 +38,22 @@ class Setting < RailsSettings::Base
   field :sentry_enabled, type: :boolean, readonly: true,
     default: (ENV["SENTRY_DSN"].present?.to_s || false)
 
+  #
+  # BTCPay Server
+  #
+
+  field :btcpay_api_url, type: :string,
+    default: ENV["BTCPAY_API_URL"].presence
+
+  field :btcpay_enabled, type: :boolean,
+    default: (ENV["BTCPAY_API_URL"].present?.to_s || false)
+
+  field :btcpay_store_id, type: :string,
+    default: ENV["BTCPAY_STORE_ID"].presence
+
+  field :btcpay_auth_token, type: :string,
+    default: ENV["BTCPAY_AUTH_TOKEN"].presence
+
   #
   # Discourse
   #
@@ -97,6 +113,9 @@ class Setting < RailsSettings::Base
   field :lndhub_enabled, type: :boolean,
     default: (ENV["LNDHUB_API_URL"].present?.to_s || false)
 
+  field :lndhub_admin_token, type: :string,
+    default: ENV["LNDHUB_ADMIN_TOKEN"].presence
+
   field :lndhub_admin_enabled, type: :boolean,
     default: (ENV["LNDHUB_ADMIN_UI"] || false)
 

app/services/btc_pay.rb

@@ -1,32 +0,0 @@
-#
-# API Docs: https://docs.btcpayserver.org/API/Greenfield/v1/
-#
-class BtcPay
-  def initialize
-    @base_url = ENV["BTCPAY_API_URL"]
-    @store_id = Rails.application.credentials.btcpay[:store_id]
-    @auth_token = Rails.application.credentials.btcpay[:auth_token]
-  end
-
-  def onchain_wallet_balance
-    res = get "stores/#{@store_id}/payment-methods/onchain/BTC/wallet"
-
-    {
-      balance: res["balance"].to_f,
-      unconfirmed_balance: res["unconfirmedBalance"].to_f,
-      confirmed_balance: res["confirmedBalance"].to_f
-    }
-  end
-
-  private
-
-  def get(endpoint)
-    res = Faraday.get("#{@base_url}/#{endpoint}", {}, {
-      "Content-Type" => "application/json",
-      "Accept" => "application/json",
-      "Authorization" => "token #{@auth_token}"
-    })
-
-    JSON.parse(res.body)
-  end
-end

app/services/btcpay_manager/fetch_lightning_wallet_balance.rb

@@ -0,0 +1,11 @@
+module BtcpayManager
+  class FetchLightningWalletBalance < BtcpayManagerService
+    def call
+      res = get "stores/#{@store_id}/lightning/BTC/balance"
+
+      {
+        balance: res["offchain"]["local"].to_i / 1000 # msats to sats
+      }
+    end
+  end
+end

app/services/btcpay_manager/fetch_onchain_wallet_balance.rb

@@ -0,0 +1,13 @@
+module BtcpayManager
+  class FetchOnchainWalletBalance < BtcpayManagerService
+    def call
+      res = get "stores/#{@store_id}/payment-methods/onchain/BTC/wallet"
+
+      {
+        balance: (res["balance"].to_f * 100000000).to_i, # BTC to sats
+        unconfirmed_balance: (res["unconfirmedBalance"].to_f * 100000000).to_i,
+        confirmed_balance: (res["confirmedBalance"].to_f * 100000000).to_i
+      }
+    end
+  end
+end

app/services/btcpay_manager_service.rb

@@ -0,0 +1,22 @@
+#
+# API Docs: https://docs.btcpayserver.org/API/Greenfield/v1/
+#
+class BtcpayManagerService < LdapService
+  def initialize
+    @base_url   = Setting.btcpay_api_url
+    @store_id   = Setting.btcpay_store_id
+    @auth_token = Setting.btcpay_auth_token
+  end
+
+  private
+
+    def get(endpoint)
+      res = Faraday.get("#{@base_url}/#{endpoint}", {}, {
+        "Content-Type" => "application/json",
+        "Accept" => "application/json",
+        "Authorization" => "token #{@auth_token}"
+      })
+
+      JSON.parse(res.body)
+    end
+end

app/services/lndhub_v2.rb

@@ -14,7 +14,7 @@ class LndhubV2 < Lndhub
   end
 
   def create_account(payload={})
-    post "v2/users", payload, admin_token: Rails.application.credentials.lndhub[:admin_token]
+    post "v2/users", payload, admin_token: Setting.lndhub_admin_token
   end
 
   def create_invoice(payload)

app/views/admin/settings/services/_btcpay.html.erb

@@ -0,0 +1,25 @@
+<h3>BTCPay Server</h3>
+<ul role="list">
+  <%= render FormElements::FieldsetToggleComponent.new(
+    form: f,
+    attribute: :btcpay_enabled,
+    enabled: Setting.btcpay_enabled?,
+    title: "Enable BTCPay integration",
+    description: "BTCPay configuration present and features enabled"
+  ) %>
+<% if Setting.btcpay_enabled? %>
+  <%= render FormElements::FieldsetResettableSettingComponent.new(
+        key: :btcpay_api_url,
+        title: "API URL"
+      ) %>
+  <%= render FormElements::FieldsetResettableSettingComponent.new(
+        key: :btcpay_store_id,
+        title: "Store ID"
+      ) %>
+  <%= render FormElements::FieldsetResettableSettingComponent.new(
+        key: :btcpay_auth_token,
+        type: :password,
+        title: "Auth Token"
+      ) %>
+<% end %>
+</ul>

app/views/admin/settings/services/_lndhub.html.erb

@@ -9,29 +9,35 @@
   ) %>
   <% if Setting.lndhub_enabled? %>
     <%= render FormElements::FieldsetResettableSettingComponent.new(
-          key: :lndhub_api_url,
-          title: "API URL"
-        ) %>
-  <% end %>
-  <%= render FormElements::FieldsetToggleComponent.new(
-    form: f,
-    attribute: :lndhub_admin_enabled,
-    enabled: Setting.lndhub_admin_enabled?,
-    title: "Enable LNDHub admin panel",
-    description: "LNDHub database configuration present and admin panel enabled"
-  ) %>
-  <%= render FormElements::FieldsetToggleComponent.new(
-    form: f,
-    attribute: :lndhub_keysend_enabled,
-    enabled: Setting.lndhub_keysend_enabled?,
-    title: "Enable keysend payments",
-    description: "Allow users to receive invoice-less payments to their Lightning Address"
-  ) %>
-  <% if Setting.lndhub_keysend_enabled? %>
+      key: :lndhub_api_url,
+      title: "API URL"
+    ) %>
     <%= render FormElements::FieldsetResettableSettingComponent.new(
-          key: :lndhub_public_key,
-          title: "Public key",
-          description: "The public key of the Lightning node used by LNDHub"
-        ) %>
+      key: :lndhub_admin_token,
+      type: :password,
+      title: "Admin token",
+      description: "Auth token for creating new lndhub accounts"
+    ) %>
+    <%= render FormElements::FieldsetToggleComponent.new(
+      form: f,
+      attribute: :lndhub_admin_enabled,
+      enabled: Setting.lndhub_admin_enabled?,
+      title: "Enable LNDHub admin panel",
+      description: "LNDHub database configuration present and admin panel enabled"
+    ) %>
+    <%= render FormElements::FieldsetToggleComponent.new(
+      form: f,
+      attribute: :lndhub_keysend_enabled,
+      enabled: Setting.lndhub_keysend_enabled?,
+      title: "Enable keysend payments",
+      description: "Allow users to receive invoice-less payments to their Lightning Address"
+    ) %>
+    <% if Setting.lndhub_keysend_enabled? %>
+      <%= render FormElements::FieldsetResettableSettingComponent.new(
+            key: :lndhub_public_key,
+            title: "Public key",
+            description: "The public key of the Lightning node used by LNDHub"
+          ) %>
+    <% end %>
   <% end %>
 </ul>

app/views/shared/_admin_sidenav_settings_services.html.erb

@@ -1,63 +1,70 @@
+<%= render SidenavLinkComponent.new(
+  level: 2,
+  name: "BTCPay",
+  path: admin_settings_services_path(params: { s: "btcpay" }),
+  text_icon: Setting.btcpay_enabled? ? "◉" : "○",
+  active: current_page?(admin_settings_services_path(params: { s: "btcpay" })),
+) %>
 <%= render SidenavLinkComponent.new(
   level: 2,
   name: "Discourse",
   path: admin_settings_services_path(params: { s: "discourse" }),
-  icon: Setting.discourse_enabled? ? "check" : "x",
+  text_icon: Setting.discourse_enabled? ? "◉" : "○",
   active: current_page?(admin_settings_services_path(params: { s: "discourse" })),
 ) %>
 <%= render SidenavLinkComponent.new(
   level: 2,
   name: "Drone CI",
   path: admin_settings_services_path(params: { s: "droneci" }),
-  icon: Setting.droneci_enabled? ? "check" : "x",
+  text_icon: Setting.droneci_enabled? ? "◉" : "○",
   active: current_page?(admin_settings_services_path(params: { s: "droneci" })),
 ) %>
 <%= render SidenavLinkComponent.new(
   level: 2,
   name: "ejabberd",
   path: admin_settings_services_path(params: { s: "ejabberd" }),
-  icon: Setting.ejabberd_enabled? ? "check" : "x",
+  text_icon: Setting.ejabberd_enabled? ? "◉" : "○",
   active: current_page?(admin_settings_services_path(params: { s: "ejabberd" })),
 ) %>
 <%= render SidenavLinkComponent.new(
   level: 2,
   name: "Gitea",
   path: admin_settings_services_path(params: { s: "gitea" }),
-  icon: Setting.gitea_enabled? ? "check" : "x",
+  text_icon: Setting.gitea_enabled? ? "◉" : "○",
   active: current_page?(admin_settings_services_path(params: { s: "gitea" })),
 ) %>
 <%= render SidenavLinkComponent.new(
   level: 2,
   name: "LNDHub",
   path: admin_settings_services_path(params: { s: "lndhub" }),
-  icon: Setting.lndhub_enabled? ? "check" : "x",
+  text_icon: Setting.lndhub_enabled? ? "◉" : "○",
   active: current_page?(admin_settings_services_path(params: { s: "lndhub" })),
 ) %>
 <%= render SidenavLinkComponent.new(
   level: 2,
   name: "Mastodon",
   path: admin_settings_services_path(params: { s: "mastodon" }),
-  icon: Setting.mastodon_enabled? ? "check" : "x",
+  text_icon: Setting.mastodon_enabled? ? "◉" : "○",
   active: current_page?(admin_settings_services_path(params: { s: "mastodon" })),
 ) %>
 <%= render SidenavLinkComponent.new(
   level: 2,
   name: "MediaWiki",
   path: admin_settings_services_path(params: { s: "mediawiki" }),
-  icon: Setting.mediawiki_enabled? ? "check" : "x",
+  text_icon: Setting.mediawiki_enabled? ? "◉" : "○",
   active: current_page?(admin_settings_services_path(params: { s: "mediawiki" })),
 ) %>
 <%= render SidenavLinkComponent.new(
   level: 2,
   name: "Nostr",
   path: admin_settings_services_path(params: { s: "nostr" }),
-  icon: Setting.nostr_enabled? ? "check" : "x",
+  text_icon: Setting.nostr_enabled? ? "◉" : "○",
   active: current_page?(admin_settings_services_path(params: { s: "nostr" })),
 ) %>
 <%= render SidenavLinkComponent.new(
   level: 2,
   name: "RemoteStorage",
   path: admin_settings_services_path(params: { s: "remotestorage" }),
-  icon: Setting.remotestorage_enabled? ? "check" : "x",
+  text_icon: Setting.remotestorage_enabled? ? "◉" : "○",
   active: current_page?(admin_settings_services_path(params: { s: "remotestorage" })),
 ) %>

config/credentials.yml.enc

@@ -1 +1 @@
-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--Lij/n0+cpstyZD28--FOUhwW3y+0jdaYkKvG2xrg==
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--ekKumqLiSlVJNwMe--K/ecXmmMT1x+WnIXMbHBDw==

config/routes.rb

@@ -54,7 +54,8 @@ Rails.application.routes.draw do
   post 'webhooks/lndhub', to: 'webhooks#lndhub'
 
   namespace :api do
-    get 'kredits/onchain_btc_balance', to: 'kredits#onchain_btc_balance'
+    get 'btcpay/onchain_btc_balance', to: 'btcpay#onchain_btc_balance'
+    get 'btcpay/lightning_btc_balance', to: 'btcpay#lightning_btc_balance'
   end
 
   namespace :admin do

spec/features/admin/settings_spec.rb

@@ -23,7 +23,7 @@ RSpec.describe 'Admin/global settings', type: :feature do
     scenario "Opening service settings shows page for first service" do
       visit admin_settings_services_path
 
-      expect(current_url).to eq(admin_settings_services_url(params: { s: "discourse" }))
+      expect(current_url).to eq(admin_settings_services_url(params: { s: "btcpay" }))
     end
 
     scenario "View service settings" do

spec/requests/api/btcpay_spec.rb

@@ -0,0 +1,79 @@
+require 'rails_helper'
+require 'webmock/rspec'
+
+RSpec.describe "/api/btcpay", type: :request do
+
+  describe "GET /onchain_btc_balance" do
+    before do
+      stub_request(:get, "http://btcpay.example.com/api/v1/stores/123456/payment-methods/onchain/BTC/wallet")
+        .to_return(status: 200, headers: {}, body: {
+          balance: 0.91108606,
+          unconfirmedBalance: 0,
+          confirmedBalance: 0.91108606
+        }.to_json)
+    end
+
+    it "returns a formatted result for the onchain wallet balance" do
+      get api_btcpay_onchain_btc_balance_path
+
+      expect(response).to have_http_status(:ok)
+
+      res = JSON.parse(response.body)
+      expect(res["balance"]).to eq(91108606)
+      expect(res["unconfirmed_balance"]).to eq(0)
+      expect(res["confirmed_balance"]).to eq(91108606)
+    end
+
+    context "upstream request error" do
+      before do
+        stub_request(:get, "http://btcpay.example.com/api/v1/stores/123456/payment-methods/onchain/BTC/wallet")
+          .to_return(status: 500, headers: {}, body: "")
+      end
+
+      it "returns a formatted error" do
+        get api_btcpay_onchain_btc_balance_path
+
+        expect(response).to have_http_status(:server_error)
+
+        res = JSON.parse(response.body)
+        expect(res["error"]).not_to be_nil
+      end
+    end
+  end
+
+  describe "GET /lightning_btc_balance" do
+    before do
+      stub_request(:get, "http://btcpay.example.com/api/v1/stores/123456/lightning/BTC/balance")
+        .to_return(status: 200, headers: {}, body: {
+          offchain: {
+            local: 4200000000
+          },
+        }.to_json)
+    end
+
+    it "returns a formatted result for the onchain wallet balance" do
+      get api_btcpay_lightning_btc_balance_path
+
+      expect(response).to have_http_status(:ok)
+
+      res = JSON.parse(response.body)
+      expect(res["balance"]).to eq(4200000)
+    end
+
+    context "upstream request error" do
+      before do
+        stub_request(:get, "http://btcpay.example.com/api/v1/stores/123456/payment-methods/onchain/BTC/wallet")
+          .to_return(status: 500, headers: {}, body: "")
+      end
+
+      it "returns a formatted error" do
+        get api_btcpay_onchain_btc_balance_path
+
+        expect(response).to have_http_status(:server_error)
+
+        res = JSON.parse(response.body)
+        expect(res["error"]).not_to be_nil
+      end
+    end
+  end
+end

spec/requests/api/kredits_spec.rb

@@ -1,43 +0,0 @@
-require 'rails_helper'
-require 'webmock/rspec'
-
-RSpec.describe "/api/kredits", type: :request do
-
-  describe "GET /onchain_btc_balance" do
-    before do
-      stub_request(:get, "http://btcpay.example.com/api/v1/stores/123456/payment-methods/onchain/BTC/wallet")
-        .to_return(status: 200, headers: {}, body: {
-          balance: 0.91108606,
-          unconfirmedBalance: 0,
-          confirmedBalance: 0.91108606
-        }.to_json)
-    end
-
-    it "returns a formatted result for the onchain wallet balance" do
-      get api_kredits_onchain_btc_balance_path
-
-      expect(response).to have_http_status(:ok)
-
-      res = JSON.parse(response.body)
-      expect(res["balance"]).to eq(0.91108606)
-      expect(res["unconfirmed_balance"]).to eq(0)
-      expect(res["confirmed_balance"]).to eq(0.91108606)
-    end
-
-    context "upstream request error" do
-      before do
-        stub_request(:get, "http://btcpay.example.com/api/v1/stores/123456/payment-methods/onchain/BTC/wallet")
-          .to_return(status: 500, headers: {}, body: "")
-      end
-
-      it "returns a formatted error" do
-        get api_kredits_onchain_btc_balance_path
-
-        expect(response).to have_http_status(:server_error)
-
-        res = JSON.parse(response.body)
-        expect(res["error"]).not_to be_nil
-      end
-    end
-  end
-end