# encoding: UTF-8
require 'rake'
require 'rake/clean'
require 'rbconfig'
require 'rake/testtask'
require 'rake/extensiontask'
require 'rubygems/package_task'
require_relative './ext/tiny_tds/extconsts'

def test_libs
  %w(lib test)
end

def test_files
  if ENV['TEST_FILES']
    ENV['TEST_FILES'].split(',').map(&:strip).sort
  else
    Dir.glob('test/**/*_test.rb').sort
  end
end

def add_file_to_gem(spec, relative_path)
  target_path = File.join gem_build_path(spec), relative_path
  target_dir = File.dirname(target_path)
  mkdir_p target_dir
  rm_f target_path
  safe_ln relative_path, target_path
  spec.files += [relative_path]
end

def gem_build_path(spec)
  File.join 'pkg', spec.full_name
end

gemspec = Gem::Specification.load(File.expand_path('../tiny_tds.gemspec', __FILE__))

Rake::TestTask.new do |t|
  t.libs = test_libs
  t.test_files = test_files
  t.verbose = true
end

Gem::PackageTask.new(gemspec) do |pkg|
  pkg.need_tar = false
  pkg.need_zip = false
end

task :compile

task build: [:clean, :compile]
task(:build_quietly) { capture_stds { Rake::Task[:build].invoke } }

task default: [:build, :test]

Dir['tasks/*.rake'].sort.each { |f| load f }

Rake::ExtensionTask.new('tiny_tds', gemspec) do |ext|
  ext.lib_dir = 'lib/tiny_tds'
  ext.cross_compile = true
  ext.cross_platform = ['x86-mingw32', 'x64-mingw32']
  ext.cross_config_options += %w(--disable-lookup --enable-cross-build)
  # Add dependent DLLs to the cross gems
  ext.cross_compiling do |spec|
    platform_host_map =  {
      'x86-mingw32' => 'i686-w64-mingw32',
      'x64-mingw32' => 'x86_64-w64-mingw32'
    }
    gemplat = spec.platform.to_s
    host = platform_host_map[gemplat]
    dlls = [
      "libeay32-#{OPENSSL_VERSION}-#{host}.dll",
      "ssleay32-#{OPENSSL_VERSION}-#{host}.dll",
      'libiconv-2.dll',
      'libsybdb-5.dll'
    ]
    # We don't need the sources in a fat binary gem
    spec.files = spec.files.reject { |f| f =~ %r{^ports\/archives/} }
    spec.files += dlls.map { |dll| "ports/#{host}/bin/#{File.basename(dll)}" }
    spec.files += Dir.glob('exe/*')
  end
end

# Bundle the freetds sources to avoid download while gem install.
task gem_build_path(gemspec) do
  add_file_to_gem gemspec, "ports/archives/freetds-#{FREETDS_VERSION}.tar.bz2"
end

desc 'Build the windows binary gems per rake-compiler-dock'
task 'gem:windows' do
  require 'rake_compiler_dock'
  RakeCompilerDock.sh <<-EOT
    bundle && rake cross native gem RUBY_CC_VERSION=2.4.0:2.3.0:2.2.2:2.1.6:2.0.0 CFLAGS="-Wall"
  EOT
end

def capture_stds
  pstdout = $stdout
  $stdout = StringIO.new
  pstderr = $stderr
  $stderr = StringIO.new
  yield
  $stdout.string
  $stderr.string
ensure
  $stdout = pstdout
  $stderr = pstderr
end