require File.expand_path('../helper', __FILE__)

class TestCMake < TestCase
  attr_accessor :assets_path, :tar_path, :recipe

  def before_all
    super
    @assets_path = File.expand_path("../assets", __FILE__)
    @tar_path = File.expand_path("../../tmp/test-cmake-1.0.tar.gz", __FILE__)

    # remove any previous test files
    FileUtils.rm_rf("tmp")

    create_tar(@tar_path, @assets_path, "test-cmake-1.0")
    start_webrick(File.dirname(@tar_path))

    @recipe = MiniPortileCMake.new("test-cmake", "1.0").tap do |recipe|
      recipe.files << "http://localhost:#{HTTP_PORT}/#{ERB::Util.url_encode(File.basename(@tar_path))}"
      recipe.patch_files << File.join(@assets_path, "patch 1.diff")
      git_dir = File.join(@assets_path, "git")
      with_custom_git_dir(git_dir) do
        recipe.cook
      end
    end
  end

  def after_all
    super
    stop_webrick
    # leave test files for inspection
  end

  def exe_name
    case
      when MiniPortile.windows? then "hello.exe"
      else "hello"
    end
  end

  def test_cmake_inherits_from_base
    assert(MiniPortileCMake <= MiniPortile)
  end

  def test_configure
    cmakecache = File.join(work_dir, "CMakeCache.txt")
    assert File.exist?(cmakecache), cmakecache

    assert_includes(IO.read(cmakecache), "CMAKE_INSTALL_PREFIX:PATH=#{recipe.path}")
  end

  def test_compile
    binary = File.join(work_dir, exe_name)
    assert File.exist?(binary), binary
  end

  def test_install
    binary = File.join(recipe.path, "bin", exe_name)
    assert File.exist?(binary), binary
  end
end

class TestCMakeConfig < TestCMake
  def test_make_command_configuration
    MiniPortile.stub(:mswin?, false) do
      without_env("MAKE") do
        assert_equal("make", MiniPortileCMake.new("test", "1.0.0").make_cmd)
        assert_equal("xyzzy", MiniPortileCMake.new("test", "1.0.0", make_command: "xyzzy").make_cmd)
      end
      with_env("MAKE"=>"asdf") do
        assert_equal("asdf", MiniPortileCMake.new("test", "1.0.0").make_cmd)
        assert_equal("asdf", MiniPortileCMake.new("test", "1.0.0", make_command: "xyzzy").make_cmd)
      end
    end

    MiniPortile.stub(:mswin?, true) do
      assert_equal("nmake", MiniPortileCMake.new("test", "1.0.0").make_cmd)
    end
  end

  def test_configure_defaults_with_unix_makefiles
    Open3.stub(:capture2, cmake_help_mock('Unix')) do
      MiniPortile.stub(:mingw?, true) do
        assert_equal([], @recipe.configure_defaults)
      end
    end
  end

  def test_configure_defaults_with_msys_makefiles
    Open3.stub(:capture2, cmake_help_mock('MSYS')) do
      MiniPortile.stub(:mingw?, true) do
        assert_equal(['-G', 'MSYS Makefiles'], @recipe.configure_defaults)
      end
    end
  end

  def test_configure_defaults_with_nmake_makefiles
    Open3.stub(:capture2, cmake_help_mock('NMake')) do
      MiniPortile.stub(:mswin?, true) do
        assert_equal(['-G', 'NMake Makefiles'], @recipe.configure_defaults)
      end
    end
  end

  def test_cmake_command_configuration
    without_env("CMAKE") do
      assert_equal("cmake", MiniPortileCMake.new("test", "1.0.0").cmake_cmd)
      assert_equal("xyzzy", MiniPortileCMake.new("test", "1.0.0", cmake_command: "xyzzy").cmake_cmd)
    end
    with_env("CMAKE"=>"asdf") do
      assert_equal("asdf", MiniPortileCMake.new("test", "1.0.0").cmake_cmd)
      assert_equal("asdf", MiniPortileCMake.new("test", "1.0.0", cmake_command: "xyzzy").cmake_cmd)
    end
  end

  private

  def cmake_help_mock(generator_type)
    open3_mock = MiniTest::Mock.new
    cmake_script = <<~SCRIPT
    echo "The following generators are available on this platform (* marks default):"
    echo "* #{generator_type} Makefiles               = Generates standard #{generator_type.upcase} makefiles."
  SCRIPT

    exit_status = MiniTest::Mock.new
    exit_status.expect(:success?, true)
    expected_output = [cmake_script, exit_status]
    open3_mock.expect(:call, expected_output, ['cmake --help'])
    open3_mock
  end
end