require "language/haskell"

class Purescript < Formula
  include Language::Haskell::Cabal

  desc "Strongly typed programming language that compiles to JavaScript"
  homepage "http://www.purescript.org"
  url "https://github.com/purescript/purescript/archive/v0.9.3.tar.gz"
  sha256 "70ea9ea189300e8ce7ea89eec818a1c9e39be1e758638898b936028fc0155783"
  head "https://github.com/purescript/purescript.git"

  bottle do
    sha256 "7493c36c9072080361e7c4e894fbc3b6207a41e28f916bbf832c45af17a9acd5" => :el_capitan
    sha256 "0de9573c7822f266ac6ef4bfdd67c42c34dea0647bf9f7c00b1a2dea0f54c7a0" => :yosemite
    sha256 "56219c3380d978226a1d7291352b9fba92b46d14c50414a4143ffce0235bfbd7" => :mavericks
  end

  depends_on "ghc" => :build
  depends_on "cabal-install" => :build

  def install
    install_cabal_package :using => ["alex", "happy"]
  end

  test do
    test_module_path = testpath/"Test.purs"
    test_target_path = testpath/"test-module.js"
    test_module_path.write <<-EOS.undent
      module Test where

      main :: Int
      main = 1
    EOS
    system bin/"psc", test_module_path, "-o", test_target_path
    assert File.exist?(test_target_path)
  end
end