desc 'Checkout project code from repositories'

task :checkout => :'checkout:all'

namespace :checkout do

  task :all => %i(setup pre main post)

  task :pre

  task :post

  task :main => %i(buildtools packages)

  task :packages

end

desc 'Update the code'

task :update => %i(checkout update:all)

namespace :update do

  task :all => %i(setup pre main post)

  task :pre

  task :post

  task :main => %i(buildtools packages)

  task :buildtools => BUILD_DIR

  task :packages => BUILD_DIR

  directory BUILD_DIR

end

# common tasks and helpers

task :'checkout-update:setup-tasks' do

  def _checkout_or_update(proc, pkg)

    case proc.arity

      when 0

        proc.call

      when 1

        proc.call(pkg)

      when 2

        proc.call(pkg, BUILD_DIR)

      else

        error "Invalid check outer arity (#{proc}, arity #{proc.arity}"

    end

  end

  project.packages_and_application.each do |pkg|

    doit = true

    if pkg.nested_package?

      # do not checkout nor update nested packages

      doit = false

      # unless they are not in the same repo as parent package

      doit = true if pkg.property_defined?(:checkout)

    end

    if doit

      pkg_wc = File.join(BUILD_DIR, pkg.directory)

      # define checkout task

      # TODO

      task :'checkout:packages' => :"checkout:package:#{pkg.name}"

      if pkg.nested_package?

        task :"checkout:package:#{pkg.name}" => :"checkout:package:#{pkg.parent_package.name}"

      end

      task :"checkout:package:#{pkg.name}" => pkg_wc

      file pkg_wc do

        ; _checkout_or_update(pkg.checkout, pkg);

      end

      # define update task

      task :'update:packages' => :"update:package:#{pkg.name}"

      task :"update:package:#{pkg.name}" do

        File.exist?(pkg_wc) ? _checkout_or_update(pkg.update, pkg) : _checkout_or_update(pkg.checkout, pkg)

      end

    end

  end

end

task :'setup:tasks' => 'checkout-update:setup-tasks'