require 'rubygems'
require 'fileutils'
require 'radius'
require 'log4r'
require 'find'
require 'tmpdir'
require_relative '../lib/depengine/processor/tags'
require_relative '../lib/depengine/processor/template'
require_relative '../lib/depengine/log/log'
require_relative '../lib/depengine/dsl/template'
require_relative '../lib/depengine/helper/validations'

$log = Log::DeploymentLogger.new
$log.writer.level = Log4r::ERROR

describe 'the template mechanism' do

  context 'given a string' do
    it 'should render a template' do
      result = Processor::Template.parse('>Template< ><t:echo>Content</t:echo><', {})
      expect(result).to include('>Template< >Content<')
    end
  end

  context 'given a single file as source' do
    it 'should render a template' do
      result = Processor::Template.parse('spec/templates/single.tpl', {})
      expect(result).to include('>Template< >Content<')
    end

    it 'should create Tags from the content hash and provide it to the template' do
      content = { 'parameter' => 'value' }
      result = Processor::Template.parse('spec/templates/single_hash.tpl', content)
      expect(result).to include('>Template< >value<')
    end

    it 'should honor the excludes' do
      tmp_dir = Dir.mktmpdir
      begin
        worker = Processor::Template.new
        worker.basepath = File.join(File.dirname(__FILE__), 'templates')
        worker.parse_template('base/sub1/single.tpl', {}, tmp_dir, excludes: ['single'])

        expect(File.file?(File.join(tmp_dir, 'base/sub1/single'))).to be false
      ensure
        FileUtils.remove_entry tmp_dir
      end
    end

    it 'should create a directory structure in analogy to the source tree' do
      tmp_dir = Dir.mktmpdir
      begin
        worker = Processor::Template.new
        worker.basepath = File.join(File.dirname(__FILE__), 'templates')
        worker.parse_template('base/sub1/single.tpl', {}, tmp_dir)

        expect(File.open(File.join(tmp_dir, 'base/sub1/single'), 'r').read).to include('>Template< >Content<')
      ensure
        FileUtils.remove_entry tmp_dir
      end
    end
  end

  context 'given a directory' do
    it 'should create a directory structure in analogy to the source tree' do
      tmp_dir = Dir.mktmpdir
      begin
        worker = Processor::Template.new
        worker.basepath = File.join(File.dirname(__FILE__), 'templates')
        worker.parse_template('base/sub2', {}, tmp_dir)

        expect(File.open(File.join(tmp_dir, 'base/sub2/multi2'), 'r').read).to include('>Template< >Content<')
      ensure
        FileUtils.remove_entry tmp_dir
      end
    end

    it 'should not use any excluded file' do
      tmp_dir = Dir.mktmpdir
      begin
        worker = Processor::Template.new
        worker.basepath = File.join(File.dirname(__FILE__), 'templates')
        worker.parse_template('base/sub2', {}, tmp_dir, excludes: ['multi2'])

        expect(File.file?(File.join(tmp_dir, 'base/sub2/multi2'))).to be false
        expect(File.file?(File.join(tmp_dir, 'base/sub2/multi1'))).to be true
      ensure
        FileUtils.remove_entry tmp_dir
      end
    end
  end
end

describe "the template DSL method 'parse_template'" do
  it 'calls the processor' do
    tmp_dir = Dir.mktmpdir
    begin
      hack_object = Class.new.class.class_eval('include Deployment::Methods::Template')
      hack_object.parse_template('base/sub1/single.tpl', tmp_dir, {}, basepath: File.join(File.dirname(__FILE__), 'templates'))
    ensure
      FileUtils.remove_entry tmp_dir
    end
  end

end