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

  desc "Interactive computing in Python"
  homepage "https://ipython.org/"
  url "https://files.pythonhosted.org/packages/fa/50/974211502bd72873728d44c3013fe79875c819c8fb69f778bcfd67bc7d38/ipython-6.2.1.tar.gz"
  sha256 "51c158a6c8b899898d1c91c6b51a34110196815cc905f9be0fa5878e19355608"
  head "https://github.com/ipython/ipython.git"

  bottle do
    cellar :any_skip_relocation
    sha256 "1a3850796fc19566d05e01a0287f39d4d78a8441efd45d1cd2ac5c4496a4a3e1" => :high_sierra
    sha256 "b2f2a638392befb99ae2af75a2ebfcc23889ba8134d6ef8a448145c388268a28" => :sierra
    sha256 "a5f5db4f14a745fc06ae832f7418481e55acc28081b7e11662d101e0aa5ad6f7" => :el_capitan
  end

  depends_on :python3

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

  resource "decorator" do
    url "https://files.pythonhosted.org/packages/bb/e0/f6e41e9091e130bf16d4437dabbac3993908e4d6485ecbc985ef1352db94/decorator-4.1.2.tar.gz"
    sha256 "7cb64d38cb8002971710c8899fbdfb859a23a364b7c99dab19d1f719c2ba16b5"
  end

  resource "ipykernel" do
    url "https://files.pythonhosted.org/packages/0c/41/67e16b243b78b49f4b1650d045b63be187c27d20a76f0f7b8e61e0fcb966/ipykernel-4.6.1.tar.gz"
    sha256 "2e1825aca4e2585b5adb7953ea16e53f53a62159ed49952a564b1e23507205db"
  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/08/8d/34b133dfa210b55e7efaa8b09c736a8f4383fcda0b6487fc43a1db3c7ee7/jedi-0.11.0.tar.gz"
    sha256 "f6d5973573e76b1fd2ea75f6dcd6445d02d41ff3af5fc61b275b4e323d1dd396"
  end

  resource "jupyter_client" do
    url "https://files.pythonhosted.org/packages/d4/51/09da9a18cd858b28cee596a628660a8cbf9830bdd89fe94361bfe18a0bb4/jupyter_client-5.1.0.tar.gz"
    sha256 "08756b021765c97bc5665390700a4255c2df31666ead8bff116b368d09912aba"
  end

  resource "jupyter_core" do
    url "https://files.pythonhosted.org/packages/2f/39/5138f975100ce14d150938df48a83cd852a3fd8e24b1244f4113848e69e2/jupyter_core-4.3.0.tar.gz"
    sha256 "a96b129e1641425bf057c3d46f4f44adce747a7d60107e8ad771045c36514d40"
  end

  resource "parso" do
    url "https://files.pythonhosted.org/packages/32/f4/9f1ee3fc5f7a23aee6454feeadef423ef1aed405208135e81620b4e3ba77/parso-0.1.0.tar.gz"
    sha256 "c5279916bb417aa2bf634648ff895cf35dce371d7319744884827bfad06f8d7b"
  end

  resource "pexpect" do
    url "https://files.pythonhosted.org/packages/e8/13/d0b0599099d6cd23663043a2a0bb7c61e58c6ba359b2656e6fb000ef5b98/pexpect-4.2.1.tar.gz"
    sha256 "3d132465a75b57aa818341c6521392a06cc660feb3988d7f1074f39bd23c9a92"
  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/54/bb/f1db86504f7a49e1d9b9301531181b00a1c7325dc85a29160ee3eaa73a54/python-dateutil-2.6.1.tar.gz"
    sha256 "891c38b2a02f5bb1be3e4793866c8df49c7d19baabf9c1bad62547e0b4866aca"
  end

  resource "pyzmq" do
    url "https://files.pythonhosted.org/packages/af/37/8e0bf3800823bc247c36715a52e924e8f8fd5d1432f04b44b8cd7a5d7e55/pyzmq-16.0.2.tar.gz"
    sha256 "0322543fff5ab6f87d11a8a099c4c07dd8a1719040084b6ce9162bcdf5c45c9d"
  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/fa/14/52e2072197dd0e63589e875ebf5984c91a027121262aa08f71a49b958359/tornado-4.5.2.tar.gz"
    sha256 "1fb8e494cd46c674d86fac5885a3ff87b0e283937a47d74eb3c02a48c9e89ad0"
  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