Split index action to index and scroll on threads

app/components/message_threads_table_component.html.erb

@@ -1,6 +1,6 @@
 <div class="flex flex-col justify-stretch items-stretch gap-4 p-4">
   <div class="flex flex-col justify-stretch items-stretch rounded-md bg-white border border-gray-200">
-    <%= form_with(url: merge_message_threads_path, local: true) do |form|%>
+    <%= form_with(url: merge_message_threads_path) do |form|%>
       <div class="flex justify-stretch items-center gap-4 p-4 border-t-0 border-r-0 border-b border-l-0 border-gray-200">
         <div class="todo flex justify-start items-start   pr-[100px]">
           <div class="  w-4 h-4 relative">

app/controllers/message_threads_controller.rb

@@ -1,5 +1,6 @@
 class MessageThreadsController < ApplicationController
   before_action :set_message_thread, only: %i[show update]
+  before_action :load_threads, only: %i[index scroll]
 
   def show
     authorize @message_thread
@@ -18,24 +19,26 @@ def update
 
   def index
     authorize MessageThread
+  end
+
+  def scroll
+    authorize MessageThread
+  end
 
+  def load_threads
     cursor = MessageThreadCollection.init_cursor(search_params[:cursor])
 
-    @message_threads, @next_cursor = MessageThreadCollection.all(
-      scope: message_thread_policy_scope.includes(:tags, :box),
-      search_permissions: search_permissions,
-      query: search_params[:q],
-      no_visible_tags: search_params[:no_visible_tags] == '1' && Current.user.admin?,
-      cursor: cursor
-    )
+    @message_threads, @next_cursor =
+      MessageThreadCollection.all(
+        scope: message_thread_policy_scope.includes(:tags, :box),
+        search_permissions: search_permissions,
+        query: search_params[:q],
+        no_visible_tags: search_params[:no_visible_tags] == "1" && Current.user.admin?,
+        cursor: cursor
+      )
 
     @next_cursor = MessageThreadCollection.serialize_cursor(@next_cursor)
     @next_page_params = search_params.to_h.merge(cursor: @next_cursor).merge(format: :turbo_stream)
-
-    respond_to do |format|
-      format.html # GET
-      format.turbo_stream # POST
-    end
   end
 
   def merge

app/policies/message_thread_policy.rb

@@ -31,6 +31,10 @@ def index?
     true
   end
 
+  def scroll?
+    true
+  end
+
   def update?
     true
   end

app/views/message_threads/index.html.erb

@@ -8,7 +8,7 @@
   <% component.with_next_page_area do %>
     <%= render Turbo::NextPageAreaComponent.new(
       id: @next_cursor,
-      url: message_threads_url(@next_page_params)
+      url: scroll_message_threads_url(@next_page_params)
       )
     %>
   <% end %>

app/views/message_threads/index.turbo_stream.erb → app/views/message_threads/scroll.turbo_stream.erb

@@ -7,7 +7,7 @@
   <%= turbo_stream.append "next_page_area" do %>
     <%= render Turbo::NextPageComponent.new(
     id:@next_cursor, 
-    url: message_threads_url(@next_page_params)
+    url: scroll_message_threads_url(@next_page_params)
     ) %>
   <% end %>
 <% else %>

config/routes.rb

@@ -50,7 +50,8 @@
 
   resources :message_threads do
     collection do
-      post 'merge'
+      post :merge
+      get :scroll
     end
     resources :messages
   end