require 'formula'

class Pyqt < Formula
  homepage 'http://www.riverbankcomputing.co.uk/software/pyqt'
  url 'http://downloads.sf.net/project/pyqt/PyQt4/PyQt-4.10.3/PyQt-mac-gpl-4.10.3.tar.gz'
  sha1 'ba5465f92fb43c9f0a5b948fa25df5045f160bf0'

  depends_on :python => :recommended
  depends_on :python3 => :optional

  depends_on 'qt'  # From their site: PyQt currently supports Qt v4 and will build against Qt v5

  if build.with? 'python3'
    depends_on 'sip' => 'with-python3'
  else
    depends_on 'sip'
  end

  def install
    python do
      args = [ "--confirm-license",
               "--bindir=#{bin}",
               "--destdir=#{lib}/#{python.xy}/site-packages",
               "--sipdir=#{share}/sip#{python.if3then3}" ]
      # We need to run "configure.py" so that pyqtconfig.py is generated and
      # PyQWT needs that. But to do the actual compile, we use the newer
      # "configure-ng.py" that is recommened in the README.
      system python, "configure.py", *args
      (python.site_packages/'PyQt4').install 'pyqtconfig.py'
      system python, "./configure-ng.py", *args
      system "make"
      system "make", "install"
      system "make", "clean"  # because this python block may be run twice
    end

    if build.with? 'python3' and build.with? 'python'
      ['pyuic4', 'pyrcc4', 'pylupdate4'].each { |f| mv(bin/f, bin/"#{f}-py3")}
    end
  end

  def caveats
    python.standard_caveats if python
  end

  test do
    # To test Python 3.x, you have to `brew test pyqt --with-python3`
    Pathname('test.py').write <<-EOS.undent
      import sys
      from PyQt4 import QtGui, QtCore

      class Test(QtGui.QWidget):
          def __init__(self, parent=None):
              QtGui.QWidget.__init__(self, parent)
              self.setGeometry(300, 300, 400, 150)
              self.setWindowTitle('Homebrew')
              QtGui.QLabel("Python " + "{0}.{1}.{2}".format(*sys.version_info[0:3]) +
                           " working with PyQt4. Quitting now...", self).move(50, 50)
              QtCore.QTimer.singleShot(1500, QtGui.qApp, QtCore.SLOT('quit()'))

      app = QtGui.QApplication([])
      window = Test()
      window.show()
      sys.exit(app.exec_())
    EOS
    python do
      system python, "test.py"
    end
  end
end