temporal_client.rb

require "temporalio/client"
require "temporalio/env_config"

module TemporalClient
  def self.instance
    return @instance if @instance

    # Load config and apply defaults
    args, kwargs = Temporalio::EnvConfig::ClientConfig.load_client_connect_options
    args[1] ||= 'default' # Default namespace

    @instance = Temporalio::Client.connect(self.server_target, args[1], **kwargs, logger: Rails.logger)
  end

  def self.server_target
    args, _kwargs = Temporalio::EnvConfig::ClientConfig.load_client_connect_options
    server = args[0]
    server || 'localhost:7233'
  end

  def self.instance=(instance)
    raise "Client already set" if @instance
    @instance = instance
  end

  def self.task_queue?
    !@task_queue.nil?
  end

  def self.task_queue
    @task_queue ||= "shopping-cart-task-queue"
  end

  def self.task_queue=(task_queue)
    raise "Task queue already set" if @task_queue && task_queue
    @task_queue = task_queue
  end
end