Add ability to choose when commands are runned

Author: mansakondo

README.md

@@ -457,6 +457,30 @@ end
 Remember that commands are invoked by a controller [before action filter](https://guides.rubyonrails.org/action_controller_overview.html#filters).
 That means controller rendering from inside a command halts the standard request cycle.
 
+### Commands Lifecycle
+
+By default, commands are runned before existing `before_action` callbacks (as
+`TurboBoost::Commands::Controller` is automatically included in `ActionController::Base`). You
+can configure this behavior to have more control over when commands are runned:
+```ruby
+# config/initializers/turbo_boost_commands.rb
+Rails.application.configure do
+  config.turbo_boost_commands[:run_commands_before_controller_callbacks] = false
+end
+```
+
+Then, you'll need to include `TurboBoost::Commands::Controller` manually where you want it:
+
+```ruby
+class ApplicationController < ActionController::Base
+  before_action :action1
+  before_action :action2
+  before_action :action3
+
+  include TurboBoost::Commands::Controller
+end
+```
+
 ### Broadcasting Turbo Streams
 
 You can also broadcast Turbo Streams to subscribed users from a command.

lib/turbo_boost/commands/engine.rb

@@ -25,12 +25,19 @@ class Engine < ::Rails::Engine
     config.turbo_boost_commands[:apply_client_state_overrides] = false
     config.turbo_boost_commands[:apply_server_state_overrides] = false
 
+    # Choose whether we want to run commands before existing `before_action`
+    # callacks
+    config.turbo_boost_commands[:run_commands_before_controller_callbacks] = true
+
     initializer "turbo_boost_commands.configuration" do
       Mime::Type.register "text/vnd.turbo-boost.html", :turbo_boost
 
       ActiveSupport.on_load :action_controller_base do
         # `self` is ActionController::Base
-        include TurboBoost::Commands::Controller
+        unless TurboBoost::Commands.config[:run_commands_before_controller_callbacks] == false
+          include TurboBoost::Commands::Controller
+        end
+
         helper TurboBoost::Commands::ApplicationHelper
       end