feat: add config for OpenAI endpoint (#12051)

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

enterprise/app/controllers/enterprise/super_admin/app_configs_controller.rb

@@ -10,7 +10,7 @@ module Enterprise::SuperAdmin::AppConfigsController
     when 'internal'
       @allowed_configs = internal_config_options
     when 'captain'
-      @allowed_configs = %w[CAPTAIN_OPEN_AI_API_KEY CAPTAIN_OPEN_AI_MODEL CAPTAIN_FIRECRAWL_API_KEY]
+      @allowed_configs = %w[CAPTAIN_OPEN_AI_API_KEY CAPTAIN_OPEN_AI_MODEL CAPTAIN_OPEN_AI_ENDPOINT CAPTAIN_FIRECRAWL_API_KEY]
     else
       super
     end

enterprise/app/services/llm/base_open_ai_service.rb

@@ -4,6 +4,7 @@ class Llm::BaseOpenAiService
   def initialize
     @client = OpenAI::Client.new(
       access_token: InstallationConfig.find_by!(name: 'CAPTAIN_OPEN_AI_API_KEY').value,
+      uri_base: uri_base,
       log_errors: Rails.env.development?
     )
     setup_model
@@ -13,6 +14,10 @@ class Llm::BaseOpenAiService
 
   private
 
+  def uri_base
+    InstallationConfig.find_by(name: 'CAPTAIN_OPEN_AI_ENDPOINT')&.value || 'https://api.openai.com/'
+  end
+
   def setup_model
     config_value = InstallationConfig.find_by(name: 'CAPTAIN_OPEN_AI_MODEL')&.value
     @model = (config_value.presence || DEFAULT_MODEL)