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

  desc "Interactive computing in Python"
  homepage "https://ipython.org/"
  url "https://files.pythonhosted.org/packages/4f/a7/fc647e9ce711cd630873c37219c0bd4438b8171211d813c7e6b316811e02/ipython-6.3.1.tar.gz"
  sha256 "a6ac981381b3f5f604b37a293369963485200e3639fb0404fa76092383c10c41"
  head "https://github.com/ipython/ipython.git"

  bottle do
    cellar :any
    sha256 "7773df5e8d3f5f036295a1c84e5ef41ce3ab896c7ae684b2a6f9962c3f0a2fee" => :high_sierra
    sha256 "bc300384122efe5b00855177d5ae20d7fa5bfbd6ddca82ededb9a7a94150c018" => :sierra
    sha256 "f541136cbc94ef6bd8678cef4784d3b39fe8bfb77a504f61dc0e68ddc81601e7" => :el_capitan
  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/70/f1/cb9373195639db13063f55eb06116310ad691e1fd125e6af057734dc44ea/decorator-4.2.1.tar.gz"
    sha256 "7d46dd9f3ea1cf5f06ee0e4e1277ae618cf48dfb10ada7c8427cd46c42702a0e"
  end

  resource "ipykernel" do
    url "https://files.pythonhosted.org/packages/52/a6/8cfaaa3a1ccdebe7f3eabcf6969101e32dbdf14bfb2443d1c021130ce23c/ipykernel-4.8.2.tar.gz"
    sha256 "c091449dd0fad7710ddd9c4a06e8b9e15277da306590bc07a3a1afa6b4453c8f"
  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/d2/41/430b325e411d564b1afc37bc7286c3549f4c415ada750a617fb1943c593d/jedi-0.11.1.tar.gz"
    sha256 "d6e799d04d1ade9459ed0f20de47c32f2285438956a677d083d3c98def59fa97"
  end

  resource "jupyter_client" do
    url "https://files.pythonhosted.org/packages/4c/df/1e8df7f4de63cc667a7a9aa234539c0419513bf94ac57d36d73b3b434786/jupyter_client-5.2.3.tar.gz"
    sha256 "27befcf0446b01e29853014d6a902dd101ad7d7f94e2252b1adca17c3466b761"
  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/14/3b/15cfd9c7a8bd9e3a2fe956e20fbc4e7c5768e06aea347d8eb68a05a71653/parso-0.1.1.tar.gz"
    sha256 "5815f3fe254e5665f3c5d6f54f086c2502035cb631a91341591b5a564203cffb"
  end

  resource "pexpect" do
    url "https://files.pythonhosted.org/packages/fa/c3/60c0cbf96f242d0b47a82e9ca634dcd6dcb043832cf05e17540812e1c707/pexpect-4.4.0.tar.gz"
    sha256 "67b85a1565968e3d5b5e7c9283caddc90c3947a2625bed1905be27bd5a03e47d"
  end

  resource "pickleshare" do
    url "https://files.pythonhosted.org/packages/69/fe/dd137d84daa0fd13a709e448138e310d9ea93070620c9db5454e234af525/pickleshare-0.7.4.tar.gz"
    sha256 "84a9257227dfdd6fe1b4be1319096c20eb85ff1e82c7932f36efccfe1b09737b"
  end

  resource "prompt_toolkit" do
    url "https://files.pythonhosted.org/packages/8a/ad/cf6b128866e78ad6d7f1dc5b7f99885fb813393d9860778b2984582e81b5/prompt_toolkit-1.0.15.tar.gz"
    sha256 "858588f1983ca497f1cf4ffde01d978a3ea02b01c8a26a8bbc5cd2e66d816917"
  end

  resource "ptyprocess" do
    url "https://files.pythonhosted.org/packages/51/83/5d07dc35534640b06f9d9f1a1d2bc2513fb9cc7595a1b0e28ae5477056ce/ptyprocess-0.5.2.tar.gz"
    sha256 "e64193f0047ad603b71f202332ab5527c5e52aa7c8b609704fc28c0dc20c4365"
  end

  resource "Pygments" do
    url "https://files.pythonhosted.org/packages/71/2a/2e4e77803a8bd6408a2903340ac498cb0a2181811af7c9ec92cb70b0308a/Pygments-2.2.0.tar.gz"
    sha256 "dbae1046def0efb574852fab9e90209b23f556367b5a320c0bcb871c77c3e8cc"
  end

  resource "python-dateutil" do
    url "https://files.pythonhosted.org/packages/c5/39/4da7c2dbc4f023fba5fb2325febcadf0d0ce0efdc8bd12083a0f65d20653/python-dateutil-2.7.2.tar.gz"
    sha256 "9d8074be4c993fbe4947878ce593052f71dac82932a677d49194d8ce9778002e"
  end

  resource "pyzmq" do
    url "https://files.pythonhosted.org/packages/9f/f6/85a33a25128a4a812c3482547e3d458eebdb19ee0b4699f9199cdb2ad731/pyzmq-17.0.0.tar.gz"
    sha256 "0145ae59139b41f65e047a3a9ed11bbc36e37d5e96c64382fcdff911c4d8c3f0"
  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/16/d8/bc6316cf98419719bd59c91742194c111b6f2e85abac88e496adefaf7afe/six-1.11.0.tar.gz"
    sha256 "70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9"
  end

  resource "tornado" do
    url "https://files.pythonhosted.org/packages/66/60/5b34caa5014eb3f1deb16d0e72cc08abeec7a9c9823486da7984ddadc95f/tornado-5.0.1.tar.gz"
    sha256 "3e9a2333362d3dad7876d902595b64aea1a2f91d0df13191ea1f8bca5a447771"
  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