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

  desc "Interactive computing in Python"
  homepage "https://ipython.org/"
  url "https://files.pythonhosted.org/packages/e3/88/39c8b7701b2f7d5c8f3a1796b0c174f21071232bc5b242feb670e913acc6/ipython-7.4.0.tar.gz"
  sha256 "b038baa489c38f6d853a3cfc4c635b0cda66f2864d136fe8f40c1a6e334e2a6b"
  head "https://github.com/ipython/ipython.git"

  bottle do
    cellar :any
    sha256 "8eeb5204d0a73e734f958701b989a09f11f3be825b91a8f167d213aead940079" => :mojave
    sha256 "53361a81248ee821e09215f7622dfefd42f3a299cc95dbd2c3ea4d7a28cd3b6c" => :high_sierra
    sha256 "69dcb8d7650bf4d01e876f8a0d43c3bf5ec2b4ba7648990a982bf6f90fbf62de" => :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/ba/19/1119fe7b1e49b9c8a9f154c930060f37074ea2e8f9f6558efc2eeaa417a2/decorator-4.4.0.tar.gz"
    sha256 "86156361c50488b84a3f148056ea716ca587df2f0de1d34750d35c21312725de"
  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/96/fb/e99fc0442f8a0fa4bf5d34162c2d98131489017f661bf8a331857844b145/jedi-0.13.3.tar.gz"
    sha256 "2bb0603e3506f708e792c7f4ad8fc2a7a9d9c2d292a358fbbd58da531695595b"
  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/94/a0/57dc47115621d9b3fcc589848cdbcbb6c4c130186e8fc4c4704766a7a699/prompt_toolkit-2.0.9.tar.gz"
    sha256 "2519ad1d8038fd5fc8e770362237ad0364d16a7650fb5724af6997ed5515e3c1"
  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/f8/48/5416696b9f2eacc7d1f9fe3a7187ad54d769e09585ec0b59c137ab5c7575/pyzmq-18.0.1.tar.gz"
    sha256 "8b319805f6f7c907b101c864c3ca6cefc9db8ce0791356f180b1b644c7347e4c"
  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/b1/7f/8109821ff9df1bf3519169e34646705c32ac13be6a4d51a79ed57f47686e/tornado-6.0.1.tar.gz"
    sha256 "de274c65f45f6656c375cdf1759dbf0bc52902a1e999d12a35eb13020a641a53"
  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