# Taken from: https://www.amberbit.com/blog/2014/2/14/putting-ruby-on-rails-on-a-diet/
# Port of https://gist.github.com/josevalim/1942658 to Rails 4
# Original author: Jose Valim
# Updated by: Peter Giacomo Lombardo
#
# Run this file with:
#
#   bundle exec RAILS_ENV=production rackup -p 3000 -s thin
#
# And access:
#
#   http://localhost:3000/hello/world
#
# The following lines should come as no surprise. Except by
# ActionController::Metal, it follows the same structure of
# config/application.rb, config/environment.rb and config.ru
# existing in any Rails 4 app. Here they are simply in one
# file and without the comments.
#

# Set the database.  Default is postgresql.
if ENV['DBTYPE'] == 'mysql2'
  TraceView::Test.set_mysql2_env
elsif ENV['DBTYPE'] == 'postgresql'
  TraceView::Test.set_postgresql_env
else
  TV.logger.warn "Unidentified DBTYPE: #{ENV['DBTYPE']}" unless ENV['DBTYPE'] == "postgresql"
  TV.logger.debug "Defaulting to postgres DB for background Rails server."
  TraceView::Test.set_postgresql_env
end

require "rails/all"
require "action_controller/railtie" # require more if needed
require 'rack/handler/puma'
require File.expand_path(File.dirname(__FILE__) + '/../models/widget')

TraceView.logger.info "[traceview/info] Starting background utility rails app on localhost:8140."

ActiveRecord::Base.establish_connection(ENV['DATABASE_URL'])

unless ActiveRecord::Base.connection.table_exists? 'widgets'
  ActiveRecord::Migration.run(CreateWidgets)
end

class Rails50MetalStack < Rails::Application
  routes.append do
    get "/hello/world" => "hello#world"
    get "/hello/metal" => "ferro#world"
    get "/hello/db"    => "hello#db"
  end

  # Enable cache classes. Production style.
  config.cache_classes = true
  config.eager_load = false

  # uncomment below to display errors
  # config.consider_all_requests_local = true

  config.active_support.deprecation = :stderr

  # Here you could remove some middlewares, for example
  # Rack::Lock, ActionDispatch::Flash and  ActionDispatch::BestStandardsSupport below.
  # The remaining stack is printed on rackup (for fun!).
  # Rails API has config.middleware.api_only! to get
  # rid of browser related middleware.
  config.middleware.delete Rack::Lock
  config.middleware.delete ActionDispatch::Flash

  # We need a secret token for session, cookies, etc.
  config.secret_token = "49837489qkuweoiuoqwehisuakshdjksadhaisdy78o34y138974xyqp9rmye8yrpiokeuioqwzyoiuxftoyqiuxrhm3iou1hrzmjk"
  config.secret_key_base = "2048671-96803948"
end

#################################################
#  Controllers
#################################################

class HelloController < ActionController::Base
  def world
    render :plain => "Hello world!"
  end

  def db
    # Create a widget
    w1 = Widget.new(:name => 'blah', :description => 'This is an amazing widget.')
    w1.save

    # query for that widget
    w2 = Widget.where(:name => 'blah').first
    w2.delete

    render :plain => "Hello database!"
  end
end

class FerroController < ActionController::Metal
  include AbstractController::Rendering

  def world
    render :plain => "Hello world!"
  end
end

TraceView::API.profile_method(FerroController, :world)

Rails50MetalStack.initialize!

Thread.new do
  Rack::Handler::Puma.run(Rails50MetalStack.to_app, {:Host => '127.0.0.1', :Port => 8140})
end

sleep(2)