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

RSpec.describe FileTemplate do

  context '#proposed_file' do
    it 'generates a propose file path based on template basename' do
      with_environment 'HOME' => working_directory do
        template_klass = Class.new(FileTemplate) do
          def class_name
            'TestTemplate'
          end

          def module_name
            'MyApplication'
          end
        end

        template = template_klass.new(working_directory: working_directory)
        expect(template.proposed_file).to eq File.join(working_directory, 'test')
      end
    end
  end

  context '#preferred_template_file' do
    it 'has a default template file which is the preferred place to store the template' do
      with_environment 'HOME' => working_directory do
        template_klass = Class.new(FileTemplate) do
          def class_name
            'TestTemplate'
          end

          def module_name
            'MyApplication'
          end
        end

        template = template_klass.new
        expect(template.preferred_template_file).to eq File.expand_path('~/.config/my_application/templates/test*.tt')
      end
    end

    it 'works with nested module names' do
      with_environment 'HOME' => working_directory do
        template_klass = Class.new(FileTemplate) do

          def class_name
            'TestTemplate'
          end

          def module_name
            'MyApplication::MySub'
          end
        end

        template = template_klass.new
        expect(template.preferred_template_file).to eq File.expand_path('~/.config/my_application/my_sub/templates/test*.tt')
      end
    end
  end

  context 'template files' do
    it 'looks at ~/.config/my_application/templates/test.tt' do
      with_environment 'HOME' => working_directory do
        create_file '.config/my_application/templates/test.tt', <<-EOS.strip_heredoc
        <%= hello world %>
        EOS

        template_klass = Class.new(FileTemplate) do
          def class_name
            'TestTemplate'
          end

          def module_name
            'MyApplication'
          end
        end

        template = template_klass.new
        expect(template.content).to include 'hello world'
      end
    end

    it 'looks at ~/.my_application/templates/test.tt' do
      with_environment 'HOME' => working_directory do
        create_file '.my_application/templates/test.tt', <<-EOS.strip_heredoc
        <%= hello world %>
        EOS

        template_klass = Class.new(FileTemplate) do
          def class_name
            'TestTemplate'
          end

          def module_name
            'MyApplication'
          end
        end

        template = template_klass.new
        expect(template.content).to include 'hello world'
      end
    end

    it 'supports star operator in suffix: ~/.my_application/templates/test*.tt' do
      with_environment 'HOME' => working_directory do
        create_file '.my_application/templates/test.erb.tt', <<-EOS.strip_heredoc
        <%= hello world %>
        EOS

        template_klass = Class.new(FileTemplate) do
          def class_name
            'TestTemplate'
          end

          def module_name
            'MyApplication'
          end
        end

        template = template_klass.new
        expect(template.content).to include 'hello world'
      end
    end
  end

  context '#content' do
    it 'returns content of template file' do
      with_environment 'HOME' => working_directory do
        create_file '.my_application/templates/test.tt', <<-EOS.strip_heredoc
        <%= hello world %>
        EOS

        template_klass = Class.new(FileTemplate) do
          def class_name
            'TestTemplate'
          end

          def module_name
            'MyApplication'
          end
        end

        template = template_klass.new
        expect(template.content).to include 'hello world'
      end
    end
  end

  context '#proposed_extname' do
    it 'propose a erb as default extname' do
      with_environment 'HOME' => working_directory do
        create_file '.my_application/templates/test.tt'

        template_klass = Class.new(FileTemplate) do
          def class_name
            'TestTemplate'
          end

          def module_name
            'MyApplication'
          end
        end

        template = template_klass.new
        expect(template.proposed_extname).to eq '.erb'
      end
    end

    it 'extracts the extname from file name' do
      with_environment 'HOME' => working_directory do
        create_file '.my_application/templates/test.md.tt'

        template_klass = Class.new(FileTemplate) do
          def class_name
            'TestTemplate'
          end

          def module_name
            'MyApplication'
          end
        end

        template = template_klass.new
        expect(template.proposed_extname).to eq '.md'
      end
    end
  end
end