require 'spec_helper.rb'

describe Temp do

  before :each do
    @dir = File.expand_path(File.dirname(__FILE__))
    @test_dir = File.join(@dir, 'test')
    @temp_dir = File.join(@dir, 'template')
    FileUtils.mkdir(@test_dir)
  end

  after :each do
    FileUtils.rm_r(@test_dir)
  end

  describe Temp::Runner do

    describe 'configuration' do

      before :each do
        @conf_file1 = File.join(@dir, 'tempconf.yml')
        @conf_file2 = File.join(@test_dir, '.tempconf')
      end

      it 'should load a configuration file' do
        runner = Temp::Runner.new(:conf_file => @conf_file1)
        runner.conf[:test].should == 'test'
      end

      it 'should create a configuration file if it is nonexistent' do
        runner = Temp::Runner.new(:conf_file => @conf_file2)
        File.file?(@conf_file2)
      end

    end

  end

  describe Temp::Copier do

    before :each do
      @copier = Temp::Copier.new(:template_dir => @temp_dir)
      @template1_name = 'template1'
      @template1 = File.join(@temp_dir, @template1_name)
      @template2_name = 'template.txt'
      @template2 = File.join(@temp_dir, @template2_name)
    end

    describe 'finding files' do

      before :each do
        @files = Dir.glob(@template1 + '/**/*').map { |f|
          f.sub(@template1 + '/', '') }.sort
        @ignore = ['.tempignore'] | Dir.glob(File.read(File.join(@template1,
          '.tempignore')).split(?\n)).map {
            |f| File.expand_path(f).sub(@template1 + '/', '') }.sort
      end

      it 'should find all files in a template' do
        @copier.find_files(@template1_name).sort.should == @files.sort
      end

      it 'should find the correct files to ignore from reading .tempignore' do
        @copier.read_tempignore(@template1_name).sort.should == @ignore
      end

      it 'should find all files in a template except for files to ignore' do
        @copier.find_files(@template1_name, @ignore).sort.should == @files -
          @ignore
      end

    end

    describe 'project creation' do

      before :each do
        @project1_dir = File.join(@test_dir, 'project')
        @project2_dir = File.join(@test_dir, @template1_name)
        @project1_file = File.join(@test_dir, 'project.txt')
        @project2_file = File.join(@test_dir, @template2_name)
      end

      describe 'success' do

        it 'should create a project directory' do
          @copier.create_project(@project1_dir, @template1_name)
          File.exist?(@project1_dir).should be_true
        end

        it 'should create a project directory, naming it after the template' do
          pwd = Dir.pwd
          Dir.chdir(@test_dir)
          @copier.create_project(@template1_name)
          File.exist?(@project2_dir).should be_true
          Dir.chdir(pwd)
        end

        it 'should copy all files from a template' do
          files = @copier.find_files(@template1_name,
                                     @copier.read_tempignore(@template1_name))
          @copier.create_project(@project1_dir, @template1_name)
          Dir.glob(File.join(@project1_dir, '**/*')).map { |f|
            f.sub(@project1_dir + '/', '') }.sort.should == files.sort
        end

        it 'should copy all files from a template to a project named after it' do
          pwd = Dir.pwd
          Dir.chdir(@test_dir)
          files = @copier.find_files(@template1_name,
                                     @copier.read_tempignore(@template1_name))
          @copier.create_project(@template1_name)
          Dir.glob(File.join(@project2_dir, '**/*')).map { |f|
            f.sub(@project2_dir + '/', '') }.sort.should == files.sort
          Dir.chdir(pwd)
        end

        it 'should copy a single file template' do
          @copier.create_project(@project1_file, @template2_name)
          File.file?(@project1_file).should be_true
        end

        it 'should copy a single file template named after the template' do
          @copier.create_project(@project2_file, @template2_name)
          File.file?(@project2_file).should be_true
        end

      end

      describe 'failure' do

        it 'should raise an exception if the project to create already exists' do
          FileUtils.mkdir(@project1_dir)
          lambda do
            @copier.create_project(@project1_dir, @template1_name)
          end.should raise_error
        end

        it 'should raise an exception if the template does not exist' do
          lambda do
            @copier.create_project(@project1_dir, 'fake_template')
          end.should raise_error
        end

      end

    end

  end

end