Billing (#1269)

* Change env SELF_HOSTING_ENABLED to SELF_HOSTED

* Initial Stripe implementation

* Fix portal link

* Use webhook signatures

* Migrated to new Stripe gem conventions

Also updated resource routing

* Added faraday-multipart gem to resolve middleware notice

* Merge fix

* Merge fix

* Temporary upgrade prompt for early access

* Lint fix

* i18n fixes

* Remove catch-all rescue

* Update .env.example

.env.example

@@ -36,8 +36,8 @@ SENTRY_DSN=
 # This is useful for controlling who can sign up for your Maybe instance.
 REQUIRE_INVITE_CODE=false
 
-# Enables self hosting features
+# Enables self hosting features (should be set to true for most folks)
-SELF_HOSTING_ENABLED=false
+SELF_HOSTED=true
 
 # The hosting platform used to deploy the app (e.g. "render")
 # `localhost` (or unset) is used for local development and testing
@@ -94,3 +94,11 @@ GITHUB_REPO_BRANCH=main
 # CLOUDFLARE_ACCESS_KEY_ID=
 # CLOUDFLARE_SECRET_ACCESS_KEY=
 # CLOUDFLARE_BUCKET=
+
+# ======================================================================================================
+# Billing Module - responsible for handling billing
+# ======================================================================================================
+#
+STRIPE_PUBLISHABLE_KEY=
+STRIPE_SECRET_KEY=
+STRIPE_WEBHOOK_SECRET=

Gemfile

@@ -45,6 +45,7 @@ gem "rails-settings-cached"
 gem "tzinfo-data", platforms: %i[windows jruby]
 gem "csv"
 gem "redcarpet"
+gem "stripe"
 gem "intercom-rails"
 
 group :development, :test do

Gemfile.lock

@@ -1,6 +1,6 @@
 GIT
   remote: https://github.com/maybe-finance/lucide-rails.git
-  revision: 79d989593ee4ac6c50106ec5e4d2bd4ec8f5af87
+  revision: 272e5fb8418ea458da3995d6abe0ba0ceee9c9f0
   specs:
     lucide-rails (0.2.0)
       railties (>= 4.1.0)
@@ -414,6 +414,7 @@ GEM
     stimulus-rails (1.3.4)
       railties (>= 6.0.0)
     stringio (3.1.1)
+    stripe (13.0.0)
     tailwindcss-rails (2.7.7)
       railties (>= 7.0.0)
     tailwindcss-rails (2.7.7-aarch64-linux)
@@ -506,6 +507,7 @@ DEPENDENCIES
   simplecov
   stackprof
   stimulus-rails
+  stripe
   tailwindcss-rails
   turbo-rails
   tzinfo-data

app/controllers/settings/billings_controller.rb

@@ -0,0 +1,2 @@
+class Settings::BillingsController < SettingsController
+end

app/controllers/subscriptions_controller.rb

@@ -0,0 +1,36 @@
+class SubscriptionsController < ApplicationController
+  def new
+    client = Stripe::StripeClient.new(ENV["STRIPE_SECRET_KEY"])
+
+    if Current.family.stripe_customer_id.blank?
+      customer = client.v1.customers.create(
+        email: Current.family.primary_user.email,
+        metadata: { family_id: Current.family.id }
+      )
+      Current.family.update(stripe_customer_id: customer.id)
+    end
+
+    session = client.v1.checkout.sessions.create({
+      customer: Current.family.stripe_customer_id,
+      line_items: [ {
+        price: ENV["STRIPE_PLAN_ID"],
+        quantity: 1
+      } ],
+      mode: "subscription",
+      success_url: settings_billing_url,
+      cancel_url: settings_billing_url
+    })
+
+    redirect_to session.url, allow_other_host: true, status: :see_other
+  end
+
+  def show
+    client = Stripe::StripeClient.new(ENV["STRIPE_SECRET_KEY"])
+
+    portal_session = client.v1.billing_portal.sessions.create(
+      customer: Current.family.stripe_customer_id,
+      return_url: settings_billing_url
+    )
+    redirect_to portal_session.url, allow_other_host: true, status: :see_other
+  end
+end

app/controllers/webhooks_controller.rb

@@ -0,0 +1,61 @@
+class WebhooksController < ApplicationController
+  skip_before_action :verify_authenticity_token, only: [ :stripe ]
+  skip_authentication
+
+  def stripe
+    webhook_body = request.body.read
+    sig_header = request.env["HTTP_STRIPE_SIGNATURE"]
+    client = Stripe::StripeClient.new(ENV["STRIPE_SECRET_KEY"])
+
+    begin
+      thin_event = client.parse_thin_event(webhook_body, sig_header, ENV["STRIPE_WEBHOOK_SECRET"])
+
+      event = client.v1.events.retrieve(thin_event.id)
+
+      case event.type
+      when /^customer\.subscription\./
+        handle_subscription_event(event)
+      when "customer.created", "customer.updated", "customer.deleted"
+        handle_customer_event(event)
+      else
+        Rails.logger.info "Unhandled event type: #{event.type}"
+      end
+
+    rescue JSON::ParserError
+      render json: { error: "Invalid payload" }, status: :bad_request
+      return
+    rescue Stripe::SignatureVerificationError
+      render json: { error: "Invalid signature" }, status: :bad_request
+      return
+    end
+
+    render json: { received: true }, status: :ok
+  end
+
+  private
+
+    def handle_subscription_event(event)
+      subscription = event.data.object
+      family = Family.find_by(stripe_customer_id: subscription.customer)
+
+      if family
+        family.update(
+          stripe_plan_id: subscription.plan.id,
+          stripe_subscription_status: subscription.status
+        )
+      else
+        Rails.logger.error "Family not found for Stripe customer ID: #{subscription.customer}"
+      end
+    end
+
+    def handle_customer_event(event)
+      customer = event.data.object
+      family = Family.find_by(stripe_customer_id: customer.id)
+
+      if family
+        family.update(stripe_customer_id: customer.id)
+      else
+        Rails.logger.error "Family not found for Stripe customer ID: #{customer.id}"
+      end
+    end
+end

app/helpers/settings/billing_helper.rb

@@ -0,0 +1,2 @@
+module Settings::BillingHelper
+end

app/helpers/settings_helper.rb

@@ -3,6 +3,7 @@ module SettingsHelper
     { name: I18n.t("settings.nav.profile_label"), path: :settings_profile_path },
     { name: I18n.t("settings.nav.preferences_label"), path: :settings_preferences_path },
     { name: I18n.t("settings.nav.self_hosting_label"), path: :settings_hosting_path, condition: :self_hosted? },
+    { name: I18n.t("settings.nav.billing_label"), path: :settings_billing_path },
     { name: I18n.t("settings.nav.accounts_label"), path: :accounts_path },
     { name: I18n.t("settings.nav.tags_label"), path: :tags_path },
     { name: I18n.t("settings.nav.categories_label"), path: :categories_path },

app/helpers/subscription_helper.rb

@@ -0,0 +1,2 @@
+module SubscriptionHelper
+end

app/helpers/webhooks_helper.rb

@@ -0,0 +1,2 @@
+module WebhooksHelper
+end

app/models/family.rb

@@ -127,4 +127,12 @@ class Family < ApplicationRecord
   def synth_usage
     self.class.synth_provider&.usage
   end
+
+  def subscribed?
+    stripe_subscription_status.present? && stripe_subscription_status == "active"
+  end
+
+  def primary_user
+    users.order(:created_at).first
+  end
 end

app/views/pages/dashboard.html.erb

@@ -22,7 +22,9 @@
     </div>
   </header>
 
-  <% if @accounts.empty? %>
+  <% if !Current.family.subscribed? && !self_hosted? %>
+    <%= render "shared/subscribe_prompt" %>
+  <% elsif @accounts.empty? %>
     <%= render "shared/no_account_empty_state" %>
   <% else %>
     <section class="flex gap-4">

app/views/settings/_nav.html.erb

@@ -26,6 +26,9 @@
             <%= sidebar_link_to t(".self_hosting_label"), settings_hosting_path, icon: "database" %>
           </li>
         <% end %>
+        <li>
+          <%= sidebar_link_to t(".billing_label"), settings_billing_path, icon: "circle-dollar-sign" %>
+        </li>
         <li>
           <%= sidebar_link_to t(".accounts_label"), accounts_path, icon: "layers" %>
         </li>

app/views/settings/billings/show.html.erb

@@ -0,0 +1,16 @@
+<% content_for :sidebar do %>
+  <%= render "settings/nav" %>
+<% end %>
+
+<div class="space-y-4">
+  <h1 class="text-gray-900 text-xl font-medium mb-4"><%= t(".page_title") %></h1>
+  <%= settings_section title: t(".subscription_title"), subtitle: t(".subscription_subtitle") do %>
+    <% if Current.family.stripe_plan_id.blank? %>
+      <%= link_to t(".subscribe_button"), new_subscription_path, class: "w-fit flex text-white text-sm font-medium items-center gap-1 bg-gray-900 rounded-lg p-2", data: { turbo: false } %>
+    <% else %>
+      <%= link_to t(".manage_subscription_button"), subscription_path, class: "w-fit flex text-white text-sm font-medium items-center gap-1 bg-gray-900 rounded-lg p-2", data: { turbo: false } %>
+    <% end %>
+  <% end %>
+
+  <%= settings_nav_footer %>
+</div>

app/views/shared/_subscribe_prompt.html.erb

@@ -0,0 +1,16 @@
+<div class="flex justify-center items-center h-[800px]">
+  <div class="text-center flex flex-col gap-4 items-center max-w-[300px]">
+    <%= lucide_icon "circle-fading-arrow-up", class: "w-8 h-8 text-green-500" %>
+
+    <div class="space-y-1 text-sm">
+      <p class="text-gray-900 font-medium"><%= t(".title") %></p>
+      <p class="text-gray-500"><%= t(".subtitle") %></p>
+      <p class="text-gray-400 text-xs"><%= t(".guarantee") %></p>
+    </div>
+
+    <%= link_to new_subscription_path, class: "btn btn--primary flex items-center gap-1" do %>
+      <%= lucide_icon("credit-card", class: "w-5 h-5") %>
+      <span><%= t(".subscribe") %></span>
+    <% end %>
+  </div>
+</div>

config/application.rb

@@ -29,6 +29,6 @@ module Maybe
     # TODO: This is here for incremental adoption of localization.  This can be removed when all translations are implemented.
     config.i18n.fallbacks = true
 
-    config.app_mode = (ENV["SELF_HOSTING_ENABLED"] == "true" ? "self_hosted" : "managed").inquiry
+    config.app_mode = (ENV["SELF_HOSTED"] == "true" ? "self_hosted" : "managed").inquiry
   end
 end

config/locales/views/settings/en.yml

@@ -1,8 +1,16 @@
 ---
 en:
   settings:
+    billings:
+      show:
+        manage_subscription_button: Manage subscription
+        page_title: Billing
+        subscribe_button: Subscribe
+        subscription_subtitle: Manage your subscription and billing details
+        subscription_title: Manage subscription
     nav:
       accounts_label: Accounts
+      billing_label: Billing
       categories_label: Categories
       feedback_label: Feedback
       general_section_title: General

config/locales/views/shared/en.yml

@@ -13,6 +13,12 @@ en:
       no_account_subtitle: Since no accounts have been added, there's no data to display.
         Add your first accounts to start viewing dashboard data.
       no_account_title: No accounts yet
+    subscribe_prompt:
+      guarantee: We're reasonable people here. If you're not happy or something doesn't
+        work, we'll gladly refund you.
+      subscribe: Upgrade your account
+      subtitle: To continue using Maybe, please subscribe!
+      title: Upgrade
     upgrade_notification:
       app_upgraded: The app has been upgraded to %{version}.
       dismiss: Dismiss

config/routes.rb

@@ -13,8 +13,11 @@ Rails.application.routes.draw do
     resource :profile, only: %i[show update destroy]
     resource :preferences, only: %i[show update]
     resource :hosting, only: %i[show update]
+    resource :billing, only: :show
   end
 
+  resource :subscription, only: %i[new show]
+
   resources :tags, except: %i[show destroy] do
     resources :deletions, only: %i[new create], module: :tag
   end
@@ -104,6 +107,9 @@ Rails.application.routes.draw do
 
   resources :currencies, only: %i[show]
 
+  # Stripe webhook endpoint
+  post "webhooks/stripe", to: "webhooks#stripe"
+
   # Reveal health status on /up that returns 200 if the app boots with no exceptions, otherwise 500.
   # Can be used by load balancers and uptime monitors to verify that the app is live.
   get "up" => "rails/health#show", as: :rails_health_check

db/migrate/20241007211438_add_billing_to_families.rb

@@ -0,0 +1,7 @@
+class AddBillingToFamilies < ActiveRecord::Migration[7.2]
+  def change
+    add_column :families, :stripe_plan_id, :string
+    add_column :families, :stripe_customer_id, :string
+    add_column :families, :stripe_subscription_status, :string, default: "incomplete"
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.2].define(version: 2024_10_03_163448) do
+ActiveRecord::Schema[7.2].define(version: 2024_10_07_211438) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pgcrypto"
   enable_extension "plpgsql"
@@ -120,7 +120,7 @@ ActiveRecord::Schema[7.2].define(version: 2024_10_03_163448) do
     t.boolean "is_active", default: true, null: false
     t.date "last_sync_date"
     t.uuid "institution_id"
-    t.virtual "classification", type: :string, as: "\nCASE\n    WHEN ((accountable_type)::text = ANY ((ARRAY['Loan'::character varying, 'CreditCard'::character varying, 'OtherLiability'::character varying])::text[])) THEN 'liability'::text\n    ELSE 'asset'::text\nEND", stored: true
+    t.virtual "classification", type: :string, as: "\nCASE\n    WHEN ((accountable_type)::text = ANY (ARRAY[('Loan'::character varying)::text, ('CreditCard'::character varying)::text, ('OtherLiability'::character varying)::text])) THEN 'liability'::text\n    ELSE 'asset'::text\nEND", stored: true
     t.uuid "import_id"
     t.index ["accountable_type"], name: "index_accounts_on_accountable_type"
     t.index ["family_id"], name: "index_accounts_on_family_id"
@@ -215,6 +215,9 @@ ActiveRecord::Schema[7.2].define(version: 2024_10_03_163448) do
     t.string "currency", default: "USD"
     t.datetime "last_synced_at"
     t.string "locale", default: "en"
+    t.string "stripe_plan_id"
+    t.string "stripe_customer_id"
+    t.string "stripe_subscription_status", default: "incomplete"
   end
 
   create_table "good_job_batches", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|

docker-compose.example.yml

@@ -40,7 +40,7 @@ services:
     restart: unless-stopped
 
     environment:
-      SELF_HOSTING_ENABLED: "true"
+      SELF_HOSTED: "true"
       RAILS_FORCE_SSL: "false"
       RAILS_ASSUME_SSL: "false"
       GOOD_JOB_EXECUTION_MODE: async

render.yaml

@@ -21,7 +21,7 @@ services:
           name: maybe
           property: connectionString
 
-      - key: SELF_HOSTING_ENABLED
+      - key: SELF_HOSTED
         value: true
       - key: HOSTING_PLATFORM
         value: render

test/controllers/settings/billings_controller_test.rb

@@ -0,0 +1,7 @@
+require "test_helper"
+
+class Settings::BillingsControllerTest < ActionDispatch::IntegrationTest
+  # test "the truth" do
+  #   assert true
+  # end
+end

test/controllers/subscriptions_controller_test.rb

@@ -0,0 +1,7 @@
+require "test_helper"
+
+class SubscriptionsControllerTest < ActionDispatch::IntegrationTest
+  # test "the truth" do
+  #   assert true
+  # end
+end

test/controllers/webhooks_controller_test.rb

@@ -0,0 +1,7 @@
+require "test_helper"
+
+class WebhooksControllerTest < ActionDispatch::IntegrationTest
+  # test "the truth" do
+  #   assert true
+  # end
+end

test/test_helper.rb

@@ -7,7 +7,7 @@ end
 
 require_relative "../config/environment"
 
-ENV["SELF_HOSTING_ENABLED"] = "false"
+ENV["SELF_HOSTED"] = "false"
 ENV["UPGRADES_ENABLED"] = "false"
 ENV["RAILS_ENV"] ||= "test"