inital start of using javascript to update the appointment link with selected document links

app/controllers/customers_controller.rb

@@ -188,6 +188,21 @@ class CustomersController < ApplicationController
     end
   end
 
+  def add_apointment
+    estimate = params[:estimate_id]
+    invoice = params[:invoice_id] 
+    output = ""
+    logger.debug "Calling :add_apointment hook"
+          results = Redmine::Hook.call_hook :add_apointment, { customer: customer }
+          unless results.nil?
+            results.each do |r|
+              output.concat "%0A" if output.length > 0
+              output.concat r unless r.nil?
+            end
+          end
+    redirect_to "https://calendar.google.com/calendar/render?action=TEMPLATE&text=#{@customer.name}+-&details=#{ link_to t(:customer_details), "https://#{Setting.host_name}#{customer_path @customer.id}"}%0A#{@customer.primary_phone}%0A#{output}&dates=#{Time.now.strftime("%Y%m%d")}T090000/#{Time.now.strftime("%Y%m%d")}T170000", target: :_blank
+  end
+
   private
 
   # redmine permission - add customers