begin
  gem 'rake-compiler', '~>0.7'
  require 'rake/extensiontask'
  require 'rake/javaextensiontask'

  def gemspec
    @clean_gemspec ||= Gem::Specification::load(File.expand_path('../../do_postgres.gemspec', __FILE__))
  end

  unless JRUBY
    Rake::ExtensionTask.new('do_postgres', gemspec) do |ext|

      postgres_lib = File.expand_path(File.join(File.dirname(__FILE__), '..', 'vendor', 'pgsql'))

      ext.lib_dir = "lib/#{gemspec.name}"

      # automatically add build options to avoid need of manual input
      if RUBY_PLATFORM =~ /mswin|mingw/ then
        ext.config_options << "--with-pgsql-server-include=#{postgres_lib}/include/server"
        ext.config_options << "--with-pgsql-client-include=#{postgres_lib}/include"
        ext.config_options << "--with-pgsql-win32-include=#{postgres_lib}/include/server/port/win32"
        ext.config_options << "--with-pgsql-client-lib=#{postgres_lib}/lib"
      else
        ext.cross_compile = true
        ext.cross_platform = ['x86-mingw32', 'x86-mswin32-60']
        ext.cross_config_options << "--with-pgsql-server-include=#{postgres_lib}/include/server"
        ext.cross_config_options << "--with-pgsql-client-include=#{postgres_lib}/include"
        ext.cross_config_options << "--with-pgsql-win32-include=#{postgres_lib}/include/server/port/win32"
        ext.cross_config_options << "--with-pgsql-client-lib=#{postgres_lib}/lib"

        ext.cross_compiling do |gemspec|
          gemspec.post_install_message = <<-POST_INSTALL_MESSAGE

    ======================================================================================================

      You've installed the binary version of #{gemspec.name}.
      It was built using PostgreSQL version #{BINARY_VERSION}.
      It's recommended to use the exact same version to avoid potential issues.

      At the time of building this gem, the necessary DLL files where available
      in the following download:

      http://wwwmaster.postgresql.org/redir/107/h/binary/v#{BINARY_VERSION}/win32/postgresql-#{BINARY_VERSION}-1-binaries-no-installer.zip

      You can put the following files available in this package in your Ruby bin
      directory, for example C:\\Ruby\\bin

      - lib\\libpq.dll
      - bin\\ssleay32.dll
      - bin\\libeay32.dll
      - bin\\libintl-8.dll
      - bin\\libiconv-2.dll
      - bin\\krb5_32.dll
      - bin\\comerr32.dll
      - bin\\k5sprt32.dll
      - bin\\gssapi32.dll

    ======================================================================================================

      POST_INSTALL_MESSAGE
        end
      end
    end
  end

  Rake::JavaExtensionTask.new('do_postgres', gemspec) do |ext|
    ext.ext_dir   = 'ext-java/src/main/java'
    ext.lib_dir   = "lib/#{gemspec.name}"
    ext.debug     = ENV.has_key?('DO_JAVA_DEBUG') && ENV['DO_JAVA_DEBUG']
    ext.classpath = '../do_jdbc/lib/do_jdbc_internal.jar'
    ext.java_compiling do |gem|
      gem.add_dependency 'jdbc-postgres', '>=8.2'
      gem.add_dependency 'do_jdbc',       '0.10.5'
    end
  end
rescue LoadError
  warn "To compile, install rake-compiler (gem install rake-compiler)"
end