require_relative 'performance_helper'
require 'active_record'

RSpec.describe "Performance testing with an ActiveRecord class", performance: true do
  include RSpec::Benchmark::Matchers

  let(:rails5_puma_headers) do
    {
      "rack.version" => [1, 3],
      "rack.errors" => StringIO.new('#<IO:<STDERR>>'),
      "rack.multithread" => true,
      "rack.multiprocess" => false,
      "rack.run_once" => false,
      "rack.hijack?" => true,
      "rack.hijack" => StringIO.new('#<Puma::Client:0x3fdb250638cc @ready=true>'),
      "rack.input" => StringIO.new('#<Puma::NullIO:0x007fb646f1db88>'),
      "rack.url_scheme" => "http",
      "rack.after_reply" => [],
      "rack.session" => StringIO.new('#<ActionDispatch::Request::Session:0x7fb64a073ae8 not yet loaded>'),
      "rack.request.query_string" => "",
      "rack.request.query_hash" => {},
      "rack.request.cookie_hash" => {},
      "SCRIPT_NAME" => "",
      "QUERY_STRING" => "",
      "SERVER_PROTOCOL" => "HTTP/1.1",
      "SERVER_SOFTWARE" => "puma 3.6.2 Sleepy Sunday Serenity",
      "GATEWAY_INTERFACE" => "CGI/1.2",
      "REQUEST_METHOD" => "GET",
      "REQUEST_PATH" => "/lol",
      "REQUEST_URI" => "/lol",
      "SERVER_NAME" => "localhost",
      "SERVER_PORT" => "4000",
      "PATH_INFO" => "/lol",
      "REMOTE_ADDR" => "::1",
      "ROUTES_70210414172620_SCRIPT_NAME" => "",
      "ORIGINAL_FULLPATH" => "/lol",
      "ORIGINAL_SCRIPT_NAME" => "",
      "HTTP_VERSION" => "HTTP/1.1",
      "HTTP_HOST" => "localhost:4000",
      "HTTP_UPGRADE_INSECURE_REQUESTS" => "1",
      "HTTP_ACCEPT" => "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
      "HTTP_USER_AGENT" => "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_2) AppleWebKit/602.3.12 (KHTML, like Gecko) Version/10.0.2 Safari/602.3.12",
      "HTTP_ACCEPT_LANGUAGE" => "en-us",
      "HTTP_ACCEPT_ENCODING" => "gzip, deflate",
      "HTTP_CONNECTION" => "keep-alive",
      "puma.socket" => StringIO.new('#<TCPSocket:fd 36>'),
      "action_dispatch.parameter_filter" => [:password],
      "action_dispatch.redirect_filter" => [],
      "action_dispatch.secret_token" => nil,
      "action_dispatch.secret_key_base" => 
      "1f6009534595b3497d036d11adaea7f0597f26bc153216c8ac961c2831e9585a21982feb8ecd6dd1a25eabfc4850d5e516482107c3d4e0fd46bad26f31ec5055",
      "action_dispatch.show_exceptions" => true,
      "action_dispatch.show_detailed_exceptions" => true,
      "action_dispatch.logger" => StringIO.new('some logger'),
      "action_dispatch.backtrace_cleaner" => StringIO.new('some backtrace silencer'),
      "action_dispatch.key_generator" => StringIO.new('some key generator'),
      "action_dispatch.http_auth_salt" => "http authentication",
      "action_dispatch.signed_cookie_salt" => "signed cookie",
      "action_dispatch.encrypted_cookie_salt" => "encrypted cookie",
      "action_dispatch.encrypted_signed_cookie_salt" => "signed encrypted cookie",
      "action_dispatch.cookies_serializer" => :json,
      "action_dispatch.cookies_digest" => nil,
      "action_dispatch.request_id" => "18f28286-d4d1-4378-b959-189db4a22754",
      "action_dispatch.request.path_parameters" => {:controller=>"greetings", :action=>"index"},
      "action_dispatch.request.content_type" => nil,
      "action_dispatch.request.request_parameters" => {},
      "action_dispatch.request.query_parameters" => {},
      "action_dispatch.request.parameters" => {"controller"=>"greetings", "action"=>"index"},
      "action_dispatch.request.formats" => StringIO.new('some formats'),
      "action_dispatch.request.unsigned_session_cookie" => {}
    }
  end

  class RequestActiveRecordLog < ActiveRecord::Base
    serialize :headers, JSON
  end

  class CreateRequestActiveRecordLog < ActiveRecord::Migration[4.2]
    def change
      create_table :request_active_record_logs do |t|
        t.integer :uid
        t.text :data
        t.time :application_server_request_start
        t.time :application_server_request_end
      end
    end
  end

  let(:app) { proc{ [200, {}, ['Hello, world.']] } }
  let(:stack) { RackRequestObjectLogger.new(app, RequestActiveRecordLog) }
  let(:request) { Rack::MockRequest.new(stack) }

  after { File.unlink 'active_record_performance.sqlite3' }

  it 'much fast. wow' do
    stub_const("Rack::MockRequest::DEFAULT_ENV", rails5_puma_headers)

    ActiveRecord::Base.establish_connection(
      adapter: 'sqlite3',
      database: 'active_record_performance.sqlite3'
    )
    CreateRequestActiveRecordLog.migrate(:up)
    expect { request.get('http://localhost:4000/doge') }.to perform_at_least(500).ips
  end
end