# encoding: utf-8
require 'spec_helper'
require 'fedux_org_stdlib/app_config'

RSpec.describe AppConfig do

  context 'options' do
    it 'creates readers and writers' do
      with_environment 'HOME' => working_directory do
        config_klass = Class.new(AppConfig) do
          option :opt1, nil

          def class_name
            'TestConfig'
          end

          def module_name
            'MyApplication'
          end
        end

        config = config_klass.new
        expect(config.opt1).to be_nil

        config.opt1 = 'blub'
        expect(config.opt1).to eq 'blub'
      end
    end

    it 'creates readers' do
      with_environment 'HOME' => working_directory do
        config_klass = Class.new(AppConfig) do
          option_reader :opt1, nil

          def class_name
            'TestConfig'
          end

          def module_name
            'MyApplication'
          end
        end

        config = config_klass.new
        expect(config.opt1).to be_nil

        expect {
          config.opt1 = 'blub'
        }.to raise_error NoMethodError
      end
    end

  end

  context 'config files' do
    it 'looks at ~/.test.yaml' do
      with_environment 'HOME' => working_directory do
        create_file '.tests.yaml', <<-EOS.strip_heredoc
        ---
        opt1: hello world
        EOS

        config_klass = Class.new(AppConfig) do
          option_reader :opt1, nil

          def class_name
            'TestConfig'
          end

          def module_name
            'MyApplication'
          end
        end

        config = config_klass.new
        expect(config.opt1).to eq 'hello world'
      end
    end

    it 'looks at ~/.config/my_application/tests.yaml' do
      with_environment 'HOME' => working_directory do
        create_file '.config/my_application/tests.yaml', <<-EOS.strip_heredoc
        ---
        opt1: hello world
        EOS

        config_klass = Class.new(AppConfig) do
          option_reader :opt1, nil

          def class_name
            'TestConfig'
          end

          def module_name
            'MyApplication'
          end
        end

        config = config_klass.new
        expect(config.opt1).to eq 'hello world'
      end
    end
  end
  it 'looks at ~/.my_application/tests.yaml' do
    with_environment 'HOME' => working_directory do
      create_file '.my_application/tests.yaml', <<-EOS.strip_heredoc
        ---
        opt1: hello world
      EOS

      config_klass = Class.new(AppConfig) do
        option_reader :opt1, nil

        def class_name
          'TestConfig'
        end

        def module_name
          'MyApplication'
        end
      end

      config = config_klass.new
      expect(config.opt1).to eq 'hello world'
    end
  end

  it 'looks at ~/.tests.yaml' do
    with_environment 'HOME' => working_directory do
      create_file '.tests.yaml', <<-EOS.strip_heredoc
        ---
        opt1: hello world
      EOS

      config_klass = Class.new(AppConfig) do
        option_reader :opt1, nil

        def class_name
          'TestConfig'
        end

        def module_name
          'MyApplication'
        end
      end

      config = config_klass.new
      expect(config.opt1).to eq 'hello world'
    end
  end

  it 'looks at ~/.testsrc' do
    with_environment 'HOME' => working_directory do
      create_file '.testsrc', <<-EOS.strip_heredoc
        ---
        opt1: hello world
      EOS

      config_klass = Class.new(AppConfig) do
        option_reader :opt1, nil

        def class_name
          'TestConfig'
        end

        def module_name
          'MyApplication'
        end
      end

      config = config_klass.new
      expect(config.opt1).to eq 'hello world'
    end
  end

  context '#to_s' do
    it 'outputs a list of variables' do
      with_environment 'HOME' => working_directory do
        config_klass = Class.new(AppConfig) do
          option :opt1, 'test1'
          option :opt2, 'test2'

          def class_name
            'TestConfig'
          end

          def module_name
            'MyApplication'
          end
        end

        config = config_klass.new
        expect(config.to_s).to eq <<-EOS.strip_heredoc.chomp
                         option | value
           -------------------- + --------------------------------------------------------------------------------
                           opt1 | test1
                           opt2 | test2
        EOS
      end
    end
  end
end