require_relative '../spec_helper'
require 'fakefs/spec_helpers'

describe 'Bootstrap' do
  include FakeFS::SpecHelpers
  
  context 'with a template that does not exist' do
    it 'should raise an error' do
      expect { Bootstrap.new("/tmp", "non_existant_template", "path-to-project") }.to raise_error
    end
  end
  
  context 'with a template with no manifest' do
    it 'should raise an error' do
      FileUtils.mkdir_p "/tmp/template_with_no_manifest"
      expect { Bootstrap.new("/tmp", "template_with_no_manifest", "path-to-project") }.to raise_error
    end
  end
  
  context 'with an invalid manifest file' do
    it 'should raise an error' do
      create_invalid_manifest_with_content "fake manifest..\n... the end"
      expect { Bootstrap.new("/tmp", "template_with_invalid_manifest", "path-to-project") }.to raise_error
    end
  end
  
  context 'with a manifest where files is not an array' do
    it 'should raise an error' do
      create_invalid_manifest_with_content "---\nfiles: blah"
      expect { Bootstrap.new("/tmp", "template_with_invalid_manifest", "path-to-project") }.to raise_error
    end
  end
  
  context 'with a manifest where files is empty' do
    it 'should raise an error' do
      create_invalid_manifest_with_content "---\nfiles: []"
      expect { Bootstrap.new("/tmp", "template_with_invalid_manifest", "path-to-project") }.to raise_error
    end
  end
  
  context 'with a valid template' do
    before(:each) do
      FileUtils.mkdir_p "/tmp/my_template"
      File.open "/tmp/my_template/manifest.yml", "w" do |from_file|
        from_file.puts "---"
        from_file.puts "files:"
        from_file.puts "  - from: some_file.txt"
      end
      
      File.open "/tmp/my_template/some_file.txt", "w" do |from_file|
        from_file.puts "some content"
      end
      
      Dir.stub(:pwd).and_return("/tmp/fake-working-dir")
    end
    
    context 'with a relative project path' do
      let(:bootstrapper) { Bootstrap.new("/tmp", "my_template", "../path/to/my_project") }
        
      it 'should have the full path to the template' do
        bootstrapper.template_dir.should == "/tmp/my_template"
      end
    
      it 'should have the full path to the output project' do
        bootstrapper.project_dir.should == "/tmp/path/to/my_project"
      end
    
      context 'when the template is processed' do
        before(:each) do
          File.stub(:binary?).and_return(false)
          File.stub(:image?).and_return(false)
          bootstrapper.process
        end
      
        it 'should create the output project directory' do
          File.exists?(bootstrapper.project_dir).should be_true
        end
      
        it 'should copy files to the output project' do
          output_file = File.join bootstrapper.project_dir, "some_file.txt"
          File.exists?(output_file).should be_true
        end
      end
    end
    
    context 'with an absolute project path' do
      let(:bootstrapper) { Bootstrap.new("/tmp", "my_template", "/tmp/path/to/my_project") }
      
      it 'should leave the project path absolute' do
        bootstrapper.project_dir.should == "/tmp/path/to/my_project"
      end
    end
  end
  
  def create_invalid_manifest_with_content content
    FileUtils.mkdir_p "/tmp/template_with_invalid_manifest"
    File.open "/tmp/template_with_invalid_manifest/manifest.yml", "w" do |from_file|
      from_file.puts content
    end
  end
end