class Ipython < Formula
  include Language::Python::Virtualenv

  desc "Interactive computing in Python"
  homepage "https://ipython.org/"
  url "https://files.pythonhosted.org/packages/82/0a/146b0f0f1ddf13ab8682aed5c5a42250cddf1082e193ec95b50b03b9f791/ipython-7.3.0.tar.gz"
  sha256 "06de667a9e406924f97781bda22d5d76bfb39762b678762d86a466e63f65dc39"
  head "https://github.com/ipython/ipython.git"

  bottle do
    cellar :any
    sha256 "28335840d1f490ab7035f76a051a3968f1684d863b472682af073b42f83ba2ca" => :mojave
    sha256 "fc44245fa14d79ae30a64f3fb0f46e751cfafb322629eeb22ffe5cb658427234" => :high_sierra
    sha256 "112df583c8b02e5d3c1afb56ee61e32cb22a66d8d3aaff8dc22c27e5744a3096" => :sierra
  end

  depends_on "python"
  depends_on "zeromq"

  resource "appnope" do
    url "https://files.pythonhosted.org/packages/26/34/0f3a5efac31f27fabce64645f8c609de9d925fe2915304d1a40f544cff0e/appnope-0.1.0.tar.gz"
    sha256 "8b995ffe925347a2138d7ac0fe77155e4311a0ea6d6da4f5128fe4b3cbe5ed71"
  end

  resource "backcall" do
    url "https://files.pythonhosted.org/packages/84/71/c8ca4f5bb1e08401b916c68003acf0a0655df935d74d93bf3f3364b310e0/backcall-0.1.0.tar.gz"
    sha256 "38ecd85be2c1e78f77fd91700c76e14667dc21e2713b63876c0eb901196e01e4"
  end

  resource "decorator" do
    url "https://files.pythonhosted.org/packages/c4/26/b48aaa231644bc875bb348e162d156edb18b994da900a10f4493ea995a2f/decorator-4.3.2.tar.gz"
    sha256 "33cd704aea07b4c28b3eb2c97d288a06918275dac0ecebdaf1bc8a48d98adb9e"
  end

  resource "ipykernel" do
    url "https://files.pythonhosted.org/packages/11/0b/95330660f8cc5d63428b9886c800ea8d68842fd866389cf579acca4915be/ipykernel-5.1.0.tar.gz"
    sha256 "0fc0bf97920d454102168ec2008620066878848fcfca06c22b669696212e292f"
  end

  resource "ipython_genutils" do
    url "https://files.pythonhosted.org/packages/e8/69/fbeffffc05236398ebfcfb512b6d2511c622871dca1746361006da310399/ipython_genutils-0.2.0.tar.gz"
    sha256 "eb2e116e75ecef9d4d228fdc66af54269afa26ab4463042e33785b887c628ba8"
  end

  resource "jedi" do
    url "https://files.pythonhosted.org/packages/e4/83/4c05db437252694660c972b5374b35a68a8a0a8cd012dc95e5fd4d7e71b0/jedi-0.13.2.tar.gz"
    sha256 "571702b5bd167911fe9036e5039ba67f820d6502832285cde8c881ab2b2149fd"
  end

  resource "jupyter_client" do
    url "https://files.pythonhosted.org/packages/e5/5c/f9b2182a445e3a6a8204daf04193154c474220f836dbcedc7d139276600e/jupyter_client-5.2.4.tar.gz"
    sha256 "b5f9cb06105c1d2d30719db5ffb3ea67da60919fb68deaefa583deccd8813551"
  end

  resource "jupyter_core" do
    url "https://files.pythonhosted.org/packages/b6/2d/2804f4de3a95583f65e5dcb4d7c8c7183124882323758996e867f47e72af/jupyter_core-4.4.0.tar.gz"
    sha256 "ba70754aa680300306c699790128f6fbd8c306ee5927976cbe48adacf240c0b7"
  end

  resource "parso" do
    url "https://files.pythonhosted.org/packages/01/70/d9fa1a10aed70c192815aac7fd3eb38ef49aa5ab9cb36129ae22c8ecbf1f/parso-0.3.4.tar.gz"
    sha256 "68406ebd7eafe17f8e40e15a84b56848eccbf27d7c1feb89e93d8fca395706db"
  end

  resource "pexpect" do
    url "https://files.pythonhosted.org/packages/89/43/07d07654ee3e25235d8cea4164cdee0ec39d1fda8e9203156ebe403ffda4/pexpect-4.6.0.tar.gz"
    sha256 "2a8e88259839571d1251d278476f3eec5db26deb73a70be5ed5dc5435e418aba"
  end

  resource "pickleshare" do
    url "https://files.pythonhosted.org/packages/d8/b6/df3c1c9b616e9c0edbc4fbab6ddd09df9535849c64ba51fcb6531c32d4d8/pickleshare-0.7.5.tar.gz"
    sha256 "87683d47965c1da65cdacaf31c8441d12b8044cdec9aca500cd78fc2c683afca"
  end

  resource "prompt_toolkit" do
    url "https://files.pythonhosted.org/packages/0d/f7/571edf48b2e11678fa21245369678815a965bac1d96e09fa60fe365ff79d/prompt_toolkit-2.0.8.tar.gz"
    sha256 "c6655a12e9b08edb8cf5aeab4815fd1e1bdea4ad73d3bbf269cf2e0c4eb75d5e"
  end

  resource "ptyprocess" do
    url "https://files.pythonhosted.org/packages/7d/2d/e4b8733cf79b7309d84c9081a4ab558c89d8c89da5961bf4ddb050ca1ce0/ptyprocess-0.6.0.tar.gz"
    sha256 "923f299cc5ad920c68f2bc0bc98b75b9f838b93b599941a6b63ddbc2476394c0"
  end

  resource "Pygments" do
    url "https://files.pythonhosted.org/packages/64/69/413708eaf3a64a6abb8972644e0f20891a55e621c6759e2c3f3891e05d63/Pygments-2.3.1.tar.gz"
    sha256 "5ffada19f6203563680669ee7f53b64dabbeb100eb51b61996085e99c03b284a"
  end

  resource "python-dateutil" do
    url "https://files.pythonhosted.org/packages/ad/99/5b2e99737edeb28c71bcbec5b5dda19d0d9ef3ca3e92e3e925e7c0bb364c/python-dateutil-2.8.0.tar.gz"
    sha256 "c89805f6f4d64db21ed966fda138f8a5ed7a4fdbc1a8ee329ce1b74e3c74da9e"
  end

  resource "pyzmq" do
    url "https://files.pythonhosted.org/packages/0e/8d/a3266e06320f32b58addb9da47a7ece925dfed30efc2430bd53bea774d61/pyzmq-17.1.3.tar.gz"
    sha256 "83722236bd6ae6a07dec0cb728906785040e91826c7575709a258b4e21d0f812"
  end

  resource "simplegeneric" do
    url "https://files.pythonhosted.org/packages/3d/57/4d9c9e3ae9a255cd4e1106bb57e24056d3d0709fc01b2e3e345898e49d5b/simplegeneric-0.8.1.zip"
    sha256 "dc972e06094b9af5b855b3df4a646395e43d1c9d0d39ed345b7393560d0b9173"
  end

  resource "six" do
    url "https://files.pythonhosted.org/packages/dd/bf/4138e7bfb757de47d1f4b6994648ec67a51efe58fa907c1e11e350cddfca/six-1.12.0.tar.gz"
    sha256 "d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"
  end

  resource "tornado" do
    url "https://files.pythonhosted.org/packages/e6/78/6e7b5af12c12bdf38ca9bfe863fcaf53dc10430a312d0324e76c1e5ca426/tornado-5.1.1.tar.gz"
    sha256 "4e5158d97583502a7e2739951553cbd88a72076f152b4b11b64b9a10c4c49409"
  end

  resource "traitlets" do
    url "https://files.pythonhosted.org/packages/a5/98/7f5ef2fe9e9e071813aaf9cb91d1a732e0a68b6c44a32b38cb8e14c3f069/traitlets-4.3.2.tar.gz"
    sha256 "9c4bd2d267b7153df9152698efb1050a5d84982d3384a37b2c1f7723ba3e7835"
  end

  resource "wcwidth" do
    url "https://files.pythonhosted.org/packages/55/11/e4a2bb08bb450fdbd42cc709dd40de4ed2c472cf0ccb9e64af22279c5495/wcwidth-0.1.7.tar.gz"
    sha256 "3df37372226d6e63e1b1e1eda15c594bca98a22d33a23832a90998faa96bc65e"
  end

  def install
    xy = Language::Python.major_minor_version "python3"
    ENV.prepend_create_path "PYTHONPATH", libexec/"vendor/lib/python#{xy}/site-packages"

    # install other resources
    ipykernel = resource("ipykernel")
    (resources - [ipykernel]).each do |r|
      r.stage do
        system "python3", *Language::Python.setup_install_args(libexec/"vendor")
      end
    end

    # install and link IPython
    ENV.prepend_create_path "PYTHONPATH", libexec/"lib/python#{xy}/site-packages"
    system "python3", *Language::Python.setup_install_args(libexec)
    bin.install libexec/"bin/ipython"
    bin.env_script_all_files(libexec/"bin", :PYTHONPATH => ENV["PYTHONPATH"])

    # install IPython man page
    man1.install libexec/"share/man/man1/ipython.1"

    # install IPyKernel
    ipykernel.stage do
      system "python3", *Language::Python.setup_install_args(libexec/"vendor")
    end

    # install kernel
    kernel_dir = Dir.mktmpdir
    system libexec/"bin/ipython", "kernel", "install", "--prefix", kernel_dir
    (share/"jupyter/kernels/python3").install Dir["#{kernel_dir}/share/jupyter/kernels/python3/*"]
    inreplace share/"jupyter/kernels/python3/kernel.json", "]", <<~EOS
      ],
      "env": {
        "PYTHONPATH": "#{ENV["PYTHONPATH"]}"
      }
    EOS
  end

  def post_install
    rm_rf etc/"jupyter/kernels/python3"
    (etc/"jupyter/kernels/python3").install Dir[share/"jupyter/kernels/python3/*"]
  end

  test do
    assert_equal "4", shell_output("#{bin}/ipython -c 'print(2+2)'").chomp

    system bin/"ipython", "kernel", "install", "--prefix", testpath
    assert_predicate testpath/"share/jupyter/kernels/python3/kernel.json", :exist?, "Failed to install kernel"
  end
end