require "isolation/abstract_unit"
require "active_support/core_ext/string/strip"

module ApplicationTests
  class RakeTest < ActiveSupport::TestCase
    include ActiveSupport::Testing::Isolation

    def setup
      build_app
      boot_rails
    end

    def teardown
      teardown_app
    end

    def test_gems_tasks_are_loaded_first_than_application_ones
      app_file "lib/tasks/app.rake", <<-RUBY
        $task_loaded = Rake::Task.task_defined?("db:create:all")
      RUBY

      require "#{app_path}/config/environment"
      ::Rails.application.load_tasks
      assert $task_loaded
    end

    def test_environment_is_required_in_rake_tasks
      app_file "config/environment.rb", <<-RUBY
        SuperMiddleware = Struct.new(:app)

        Rails.application.configure do
          config.middleware.use SuperMiddleware
        end

        Rails.application.initialize!
      RUBY

      assert_match("SuperMiddleware", Dir.chdir(app_path){ `bin/rake middleware` })
    end

    def test_initializers_are_executed_in_rake_tasks
      add_to_config <<-RUBY
        initializer "do_something" do
          puts "Doing something..."
        end

        rake_tasks do
          task do_nothing: :environment do
          end
        end
      RUBY

      output = Dir.chdir(app_path){ `bin/rake do_nothing` }
      assert_match "Doing something...", output
    end

    def test_does_not_explode_when_accessing_a_model
      add_to_config <<-RUBY
        rake_tasks do
          task do_nothing: :environment do
            Hello.new.world
          end
        end
      RUBY

      app_file 'app/models/hello.rb', <<-RUBY
        class Hello
          def world
            puts 'Hello world'
          end
        end
      RUBY

      output = Dir.chdir(app_path) { `bin/rake do_nothing` }
      assert_match 'Hello world', output
    end

    def test_should_not_eager_load_model_for_rake
      add_to_config <<-RUBY
        rake_tasks do
          task do_nothing: :environment do
          end
        end
      RUBY

      add_to_env_config 'production', <<-RUBY
        config.eager_load = true
      RUBY

      app_file 'app/models/hello.rb', <<-RUBY
        raise 'should not be pre-required for rake even eager_load=true'
      RUBY

      Dir.chdir(app_path) do
        assert system('bin/rake do_nothing RAILS_ENV=production'),
               'should not be pre-required for rake even eager_load=true'
      end
    end

    def test_code_statistics_sanity
      assert_match "Code LOC: 7     Test LOC: 0     Code to Test Ratio: 1:0.0",
        Dir.chdir(app_path){ `bin/rake stats` }
    end

    def test_rake_routes_calls_the_route_inspector
      app_file "config/routes.rb", <<-RUBY
        Rails.application.routes.draw do
          get '/cart', to: 'cart#show'
        end
      RUBY

      output = Dir.chdir(app_path){ `bin/rake routes` }
      assert_equal "Prefix Verb URI Pattern     Controller#Action\n  cart GET  /cart(.:format) cart#show\n", output
    end

    def test_rake_routes_with_controller_environment
      app_file "config/routes.rb", <<-RUBY
        Rails.application.routes.draw do
          get '/cart', to: 'cart#show'
          get '/basketball', to: 'basketball#index'
        end
      RUBY

      ENV['CONTROLLER'] = 'cart'
      output = Dir.chdir(app_path){ `bin/rake routes` }
      assert_equal "Prefix Verb URI Pattern     Controller#Action\n  cart GET  /cart(.:format) cart#show\n", output
    end

    def test_rake_routes_displays_message_when_no_routes_are_defined
      app_file "config/routes.rb", <<-RUBY
        Rails.application.routes.draw do
        end
      RUBY

      assert_equal <<-MESSAGE.strip_heredoc, Dir.chdir(app_path){ `bin/rake routes` }
        You don't have any routes defined!

        Please add some routes in config/routes.rb.

        For more information about routes, see the Rails guide: http://guides.rubyonrails.org/routing.html.
      MESSAGE
    end

    def test_logger_is_flushed_when_exiting_production_rake_tasks
      add_to_config <<-RUBY
        rake_tasks do
          task log_something: :environment do
            Rails.logger.error("Sample log message")
          end
        end
      RUBY

      output = Dir.chdir(app_path){ `bin/rake log_something RAILS_ENV=production && cat log/production.log` }
      assert_match "Sample log message", output
    end

    def test_loading_specific_fixtures
      Dir.chdir(app_path) do
        `bin/rails generate model user username:string password:string;
         bin/rails generate model product name:string;
         bin/rake db:migrate`
      end

      require "#{rails_root}/config/environment"

      # loading a specific fixture
      errormsg = Dir.chdir(app_path) { `bin/rake db:fixtures:load FIXTURES=products` }
      assert $?.success?, errormsg

      assert_equal 2, ::AppTemplate::Application::Product.count
      assert_equal 0, ::AppTemplate::Application::User.count
    end

    def test_loading_only_yml_fixtures
      Dir.chdir(app_path) do
        `bin/rake db:migrate`
      end

      app_file "test/fixtures/products.csv", ""

      require "#{rails_root}/config/environment"
      errormsg = Dir.chdir(app_path) { `bin/rake db:fixtures:load` }
      assert $?.success?, errormsg
    end

    def test_scaffold_tests_pass_by_default
      output = Dir.chdir(app_path) do
        `bin/rails generate scaffold user username:string password:string;
         bin/rake db:migrate test`
      end

      assert_match(/7 runs, 12 assertions, 0 failures, 0 errors/, output)
      assert_no_match(/Errors running/, output)
    end

    def test_api_scaffold_tests_pass_by_default
      add_to_config <<-RUBY
        config.api_only = true
      RUBY

      app_file "app/controllers/application_controller.rb", <<-RUBY
        class ApplicationController < ActionController::API
        end
      RUBY

      output = Dir.chdir(app_path) do
        `bin/rails generate scaffold user username:string password:string;
         bin/rake db:migrate test`
      end

      assert_match(/5 runs, 7 assertions, 0 failures, 0 errors/, output)
      assert_no_match(/Errors running/, output)
    end

    def test_scaffold_with_references_columns_tests_pass_when_belongs_to_is_optional
      app_file "config/initializers/active_record_belongs_to_required_by_default.rb",
        "Rails.application.config.active_record.belongs_to_required_by_default = false"

      output = Dir.chdir(app_path) do
        `bin/rails generate scaffold LineItems product:references cart:belongs_to;
         bin/rake db:migrate test`
      end

      assert_match(/7 runs, 12 assertions, 0 failures, 0 errors/, output)
      assert_no_match(/Errors running/, output)
    end

    def test_db_test_clone_when_using_sql_format
      add_to_config "config.active_record.schema_format = :sql"
      output = Dir.chdir(app_path) do
        `bin/rails generate scaffold user username:string;
         bin/rake db:migrate;
         bin/rake db:test:clone 2>&1 --trace`
      end
      assert_match(/Execute db:test:clone_structure/, output)
    end

    def test_db_test_prepare_when_using_sql_format
      add_to_config "config.active_record.schema_format = :sql"
      output = Dir.chdir(app_path) do
        `bin/rails generate scaffold user username:string;
         bin/rake db:migrate;
         bin/rake db:test:prepare 2>&1 --trace`
      end
      assert_match(/Execute db:test:load_structure/, output)
    end

    def test_rake_dump_structure_should_respect_db_structure_env_variable
      Dir.chdir(app_path) do
        # ensure we have a schema_migrations table to dump
        `bin/rake db:migrate db:structure:dump SCHEMA=db/my_structure.sql`
      end
      assert File.exist?(File.join(app_path, 'db', 'my_structure.sql'))
    end

    def test_rake_dump_structure_should_be_called_twice_when_migrate_redo
      add_to_config "config.active_record.schema_format = :sql"

      output = Dir.chdir(app_path) do
        `bin/rails g model post title:string;
         bin/rake db:migrate:redo 2>&1 --trace;`
      end

      # expect only Invoke db:structure:dump (first_time)
      assert_no_match(/^\*\* Invoke db:structure:dump\s+$/, output)
    end

    def test_rake_dump_schema_cache
      Dir.chdir(app_path) do
        `bin/rails generate model post title:string;
         bin/rails generate model product name:string;
         bin/rake db:migrate db:schema:cache:dump`
      end
      assert File.exist?(File.join(app_path, 'db', 'schema_cache.dump'))
    end

    def test_rake_clear_schema_cache
      Dir.chdir(app_path) do
        `bin/rake db:schema:cache:dump db:schema:cache:clear`
      end
      assert !File.exist?(File.join(app_path, 'db', 'schema_cache.dump'))
    end

    def test_copy_templates
      Dir.chdir(app_path) do
        `bin/rake rails:templates:copy`
        %w(controller mailer scaffold).each do |dir|
          assert File.exist?(File.join(app_path, 'lib', 'templates', 'erb', dir))
        end
        %w(controller helper scaffold_controller assets).each do |dir|
          assert File.exist?(File.join(app_path, 'lib', 'templates', 'rails', dir))
        end
      end
    end

    def test_template_load_initializers
      app_file "config/initializers/dummy.rb", "puts 'Hello, World!'"
      app_file "template.rb", ""

      output = Dir.chdir(app_path) do
        `bin/rake rails:template LOCATION=template.rb`
      end

      assert_match(/Hello, World!/, output)
    end

    def test_tmp_clear_should_work_if_folder_missing
      FileUtils.remove_dir("#{app_path}/tmp")
      errormsg = Dir.chdir(app_path) { `bin/rake tmp:clear` }
      assert_predicate $?, :success?
      assert_empty errormsg
    end
  end
end
