Billing: fatture manuali, profilo obbligatorio e piani Stripe mensile/annuale.

Rimuove link al portale Stripe in area cliente, aggiunge flusso admin per PDF
fattura e email, blocca checkout senza dati di fatturazione, allinea prezzi
a €4,90/€39,90 e €9,90/€69,90, locale italiano e documentazione deploy.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/spec/helpers/public/billing_helper_spec.rb

@@ -1,38 +1,70 @@
 require "rails_helper"
 
 RSpec.describe Public::BillingHelper, type: :helper do
-  before { load Rails.root.join("db/seeds/plans.rb") }
+  before do
+    load Rails.root.join("db/seeds/plans.rb")
+    allow(MatchLiveTv).to receive(:stripe_enabled?).and_return(true)
+    allow(MatchLiveTv).to receive(:stripe_premium_light_yearly_price_id).and_return("py")
+    allow(MatchLiveTv).to receive(:stripe_premium_light_monthly_price_id).and_return("pm")
+    allow(MatchLiveTv).to receive(:stripe_premium_full_yearly_price_id).and_return("fy")
+    allow(MatchLiveTv).to receive(:stripe_premium_full_monthly_price_id).and_return("fm")
+  end
 
   let(:premium_light) { Plan["premium_light"] }
   let(:premium_full) { Plan["premium_full"] }
-  let(:free_plan) { Plan["free"] }
 
-  it "segna il piano corrente" do
-    action = helper.plan_billing_action(
-      current_slug: "premium_light",
-      target_plan: premium_light,
-      stripe_subscription_active: true
-    )
-    expect(action[:kind]).to eq(:current)
-  end
-
-  it "propone attivazione da free" do
+  it "propone due opzioni checkout da free" do
     action = helper.plan_billing_action(
       current_slug: "free",
       target_plan: premium_light,
       stripe_subscription_active: false
     )
-    expect(action[:kind]).to eq(:checkout)
-    expect(action[:label]).to include("Attiva")
+    expect(action[:kind]).to eq(:checkout_options)
+    expect(action[:intervals]).to eq(%w[monthly yearly])
   end
 
-  it "propone upgrade con abbonamento attivo" do
+  it "segna piano corrente quando non ci sono altri intervalli" do
+    allow(MatchLiveTv).to receive(:stripe_premium_light_monthly_price_id).and_return(nil)
+    action = helper.plan_billing_action(
+      current_slug: "premium_light",
+      target_plan: premium_light,
+      stripe_subscription_active: true,
+      current_interval: "yearly"
+    )
+    expect(action[:kind]).to eq(:current)
+    expect(action[:label]).to include("€39,90/anno")
+  end
+
+  it "propone cambio intervallo sullo stesso piano" do
+    action = helper.plan_billing_action(
+      current_slug: "premium_light",
+      target_plan: premium_light,
+      stripe_subscription_active: true,
+      current_interval: "yearly"
+    )
+    expect(action[:kind]).to eq(:interval_switch)
+    expect(action[:intervals]).to eq(["monthly"])
+  end
+
+  it "propone upgrade con opzioni intervallo" do
     action = helper.plan_billing_action(
       current_slug: "premium_light",
       target_plan: premium_full,
-      stripe_subscription_active: true
+      stripe_subscription_active: true,
+      current_interval: "yearly"
     )
-    expect(action[:kind]).to eq(:change)
-    expect(action[:label]).to include("Passa a")
+    expect(action[:kind]).to eq(:change_options)
+    expect(action[:intervals].size).to eq(2)
+  end
+
+  it "stile annuale pieno e mensile outline" do
+    expect(helper.plan_interval_button_class("yearly")).to include("btn-primary")
+    expect(helper.plan_interval_button_class("yearly")).not_to include("btn-outline")
+    expect(helper.plan_interval_button_class("monthly")).to include("btn-outline")
+    expect(helper.plan_interval_button_class("monthly")).not_to include("btn-primary")
+  end
+
+  it "mostra prima il pulsante annuale" do
+    expect(helper.plan_intervals_for_display(%w[monthly yearly])).to eq(%w[yearly monthly])
   end
 end