# frozen_string_literal: true

require 'minitest_config'

describe Cartage::Rack::Simple do
  include Rack::Test::Methods

  let(:app) { Cartage::Rack::Simple(path) }
  let(:path) { 'test/hillvalley' }
  let(:metadata) {
    {
      'env' => { 'name' => 'production' },
      'package' => {
        'name' => 'hillvalley',
        'repo' => {
          'type' => 'git',
          'url' => 'git:doc@hillvalley.com/delorean.git'
        },
        'hashref' => 'd0cb1ff',
        'timestamp' => '19851027104200'
      }
    }
  }

  def around(&block)
    stub_dir_pwd path do
      instance_stub Pathname, :exist?, true do
        instance_stub Pathname, :read, -> { metadata.to_json } do
          super(&block)
        end
      end
    end
  end

  it 'warns when Cartage::Rack.mount(path) is used' do
    $VERBOSE, verbose = false, $VERBOSE
    assert_output nil, /Cartage::Rack.mount\(path\) is deprecated/ do
      Cartage::Rack.mount
      $VERBOSE = verbose
    end
  end

  it 'inspects nicely for `rake routes` in Rails' do
    assert_equal 'Cartage::Rack::Simple for hillvalley (release_metadata_json)',
      Cartage::Rack::Simple().inspect
  end

  it 'returns text/plain content by default' do
    get '/'
    assert_equal 'text/plain', last_response.header['Content-Type']
  end

  it 'returns application/json content when requested' do
    get '/.json'
    assert_equal 'application/json', last_response.header['Content-Type']
  end

  context 'application environment' do
    it 'uses $RAILS_ENV first' do
      stub_env 'RAILS_ENV' => 'vne_sliar',
               'APP_ENV'   => 'vne_ppa',
               'RACK_ENV'  => 'vne_kcar' do
        get '/'

        assert last_response.ok?
        assert_equal 'vne_sliar: d0cb1ff (19851027104200)', last_response.body
        assert_equal 'text/plain', last_response.header['Content-Type']
      end
    end

    it 'uses $APP_ENV second' do
      stub_env 'RAILS_ENV' => nil, 'APP_ENV' => 'vne_ppa', 'RACK_ENV' => 'vne_kcar' do
        get '/'

        assert last_response.ok?
        assert_equal 'vne_ppa: d0cb1ff (19851027104200)', last_response.body
        assert_equal 'text/plain', last_response.header['Content-Type']
      end
    end

    it 'uses $RACK_ENV third' do
      stub_env 'RAILS_ENV' => nil, 'APP_ENV' => nil, 'RACK_ENV' => 'vne_kcar' do
        get '/'

        assert last_response.ok?
        assert_equal 'vne_kcar: d0cb1ff (19851027104200)', last_response.body
        assert_equal 'text/plain', last_response.header['Content-Type']
      end
    end

    it 'falls through to UNKNOWN without either $RAILS_ENV, $APP_ENV or $RACK_ENV' do
      stub_env 'RAILS_ENV' => nil, 'APP_ENV' => nil, 'RACK_ENV' => nil do
        get '/'

        assert last_response.ok?
        assert_equal 'UNKNOWN: d0cb1ff (19851027104200)', last_response.body
        assert_equal 'text/plain', last_response.header['Content-Type']
      end
    end
  end

  context 'timestamp' do
    around do |&block|
      metadata['package'].delete('timestamp')
      super(&block)
    end

    it 'is omitted if not present in the metadata' do
      stub_env 'RAILS_ENV' => nil, 'RACK_ENV' => nil do
        get '/'

        assert last_response.ok?
        assert_equal 'UNKNOWN: d0cb1ff', last_response.body
        assert_equal 'text/plain', last_response.header['Content-Type']
      end
    end
  end
end