require File.join(File.expand_path(File.dirname(__FILE__)), 'helper')

class TestGitback < Test::Unit::TestCase
  def setup
    @dirname = File.expand_path(File.dirname(__FILE__))
    @remote_path = File.expand_path(File.join(@dirname, *%w[repos remote_repo]))
    @local_path  = File.expand_path(File.join(@dirname, *%w[repos local_repo]))

    # Create the "remote" repo directory
    FileUtils.mkdir_p(@remote_path)

    Dir.chdir(@remote_path) do
      # Init the "remote" git repo and make first commit
      `git init`
      # By default, git won't let you push to a non-bare repo
      # This config setting says to ignore that restriction
      `git config receive.denyCurrentBranch ignore`
      `touch README`

      @remote_repo = Grit::Repo.new(@remote_path)
      @remote_repo.add(@remote_path + '/*')
      @remote_repo.commit_all("first commit")
    end

    # Clone the "remote" repo to a "local" repo
    `git clone #{@remote_path} #{@local_path}`
  end

  def teardown
    # Cleanup the "remote" repo from previous tests
    if File.exists?(@remote_path)
      FileUtils.remove_dir(@remote_path)
    end

    # Cleanup the "local" repo from previous tests
    if File.exists?(@local_path)
      FileUtils.remove_dir(@local_path)
    end
  end

  def test_handle_basic_file_backups
    files = []
    files << "#{@dirname}/data/testing.txt"
    files << "#{@dirname}/data/some/deep/nginx.conf"

    output = Gitback::Repository.new @local_path do |repo|
      files.each do |file|
        repo.backup file
      end
    end

    assert_files(files)
  end

  def test_handle_directory_backups
    output = Gitback::Repository.new @local_path do |repo|
      repo.backup "#{@dirname}/data/another/"
      repo.backup "#{@dirname}/data/some/deep/nginx.conf"
    end

    files = []
    files << "#{@dirname}/data/another/file.txt"
    files << "#{@dirname}/data/another/test.txt"
    files << "#{@dirname}/data/some/deep/nginx.conf"

    assert_files(files)
  end

  def test_use_namespaces
    output = Gitback::Repository.new @local_path do |repo|
      repo.namespace 'blah.domain.com' do
        repo.backup "#{@dirname}/data/another/"
        repo.backup "#{@dirname}/data/some/deep/nginx.conf"
      end
    end

    # Make sure local repo has the files
    files = []
    files << "/blah.domain.com#{@dirname}/data/another/file.txt"
    files << "/blah.domain.com#{@dirname}/data/another/test.txt"
    files << "/blah.domain.com#{@dirname}/data/some/deep/nginx.conf"

    assert_files(files)
  end

  def test_deal_with_symlinks
    # Create a symlink
    linked_file = "#{@dirname}/data/linked.txt"
    File.symlink("#{@dirname}/data/testing.txt", linked_file)

    Gitback::Repository.new @local_path do |repo|
      repo.backup linked_file
    end

    files = [linked_file]

    assert_files(files)

    # Delete the link for future tests
    File.delete(linked_file)
  end

  def assert_files(file_array)
    file_array.each do |file|
      assert File.exists?("#{@local_path}#{file}"), "Couldn't find #{@local_path}#{file}"
    end

    # Need to reset in order for the files to show up in the remote
    # Normally we'd be pushing to a bare repo, but for testing we aren't
    Dir.chdir(@remote_path) do
      `git reset --hard`
    end

    file_array.each do |file|
      assert File.exists?("#{@remote_path}#{file}"), "Couldn't find #{@remote_path}#{file}"
    end
  end
end