Demo 4: Multi-store, cada tienda su propia PWA

- Manifest personalizado por store con ERB (nombre, logo)
- Cache nombrado por subdominio para facilitar debugging
- Renombrar service-worker.js a .js.erb para habilitar ERB
- Helper current_store disponible para Rails::PwaController

Author: JuanVqz

app/helpers/application_helper.rb

@@ -1,4 +1,10 @@
 module ApplicationHelper
+  # Disponible en todas las vistas, incluyendo las de Rails::PwaController
+  # que NO hereda de nuestro ApplicationController.
+  def current_store
+    Current.store || Store.find_by(subdomain: request.subdomain)
+  end
+
   def order_status_border_class(status)
     case status.to_s
     when "open" then "border-amber-300"

app/views/pwa/manifest.json.erb

@@ -1,14 +1,15 @@
+<%# Personalizado por store %>
 {
-  "name": "May Store",
-  "short_name": "MayStore",
+  "name": "<%= current_store&.name || 'May Store' %>",
+  "short_name": "<%= current_store&.name&.truncate(12) || 'MayStore' %>",
   "icons": [
     {
-      "src": "/icon.png",
+      "src": "<%= current_store&.logo_url || '/icon.png' %>",
       "type": "image/png",
       "sizes": "512x512"
     },
     {
-      "src": "/icon.png",
+      "src": "<%= current_store&.logo_url || '/icon.png' %>",
       "type": "image/png",
       "sizes": "512x512",
       "purpose": "maskable"

app/views/pwa/service-worker.js app/views/pwa/service-worker.js.erbapp/views/pwa/service-worker.js renamed to app/views/pwa/service-worker.js.erb

@@ -1,4 +1,5 @@
-const CACHE_NAME = "may-store-v1"
+// Cache nombrado por store para facilitar debugging
+const CACHE_NAME = "may-store-<%= current_store&.subdomain || 'public' %>-v1"
 
 // 1. Install: pre-cachear la pagina offline
 self.addEventListener("install", (event) => {