class PerconaServerMongodb < Formula
  desc "Drop-in MongoDB replacement"
  homepage "https://www.percona.com"
  url "https://www.percona.com/downloads/percona-server-mongodb-3.6/percona-server-mongodb-3.6.6-1.4/source/tarball/percona-server-mongodb-3.6.6-1.4.tar.gz"
  version "3.6.6-1.4"
  sha256 "a30d3932c449b61df049807a51d7fbaf6c3534b68116e82829f63049dff69d2a"

  bottle do
    cellar :any
    rebuild 1
    sha256 "65e23fd9b4e0a03964950fa1d0323e3730c41d47c511e3f7ef8c08352538e2de" => :mojave
    sha256 "2908790361d2e6248f0505c6e7997f6fb45f33e436a6eb8c35e42fc49625486d" => :high_sierra
    sha256 "f43cd51a2678db2ca1a1ef80076bd029681c91cc8ccb176dc9931b1638b1db82" => :sierra
  end

  depends_on "go" => :build
  depends_on "pkg-config" => :build
  depends_on "scons" => :build
  depends_on :macos => :sierra
  depends_on "openssl"

  conflicts_with "mongodb",
    :because => "percona-server-mongodb and mongodb install the same binaries."

  resource "Cheetah" do
    url "https://files.pythonhosted.org/packages/cd/b0/c2d700252fc251e91c08639ff41a8a5203b627f4e0a2ae18a6b662ab32ea/Cheetah-2.4.4.tar.gz"
    sha256 "be308229f0c1e5e5af4f27d7ee06d90bb19e6af3059794e5fd536a6f29a9b550"
  end

  resource "PyYAML" do
    url "https://files.pythonhosted.org/packages/9e/a3/1d13970c3f36777c583f136c136f804d70f500168edc1edea6daa7200769/PyYAML-3.13.tar.gz"
    sha256 "3ef3092145e9b70e3ddd2c7ad59bdd0252a94dfe3949721633e41344de00a6bf"
  end

  resource "typing" do
    url "https://files.pythonhosted.org/packages/ec/cc/28444132a25c113149cec54618abc909596f0b272a74c55bab9593f8876c/typing-3.6.4.tar.gz"
    sha256 "d400a9344254803a2368533e4533a4200d21eb7b6b729c173bc38201a74db3f2"
  end

  def install
    ["Cheetah", "PyYAML", "typing"].each do |r|
      resource(r).stage do
        system "python", *Language::Python.setup_install_args(buildpath/"vendor")
      end
    end

    (buildpath/".brew_home/Library/Python/2.7/lib/python/site-packages/vendor.pth").write <<~EOS
      import site; site.addsitedir("#{buildpath}/vendor/lib/python2.7/site-packages")
    EOS

    # New Go tools have their own build script but the server scons "install" target is still
    # responsible for installing them.

    cd "src/mongo/gotools" do
      inreplace "build.sh" do |s|
        s.gsub! "$(git describe)", version.to_s.split("-")[0]
        s.gsub! "$(git rev-parse HEAD)", "homebrew"
      end

      ENV["LIBRARY_PATH"] = Formula["openssl"].opt_lib
      ENV["CPATH"] = Formula["openssl"].opt_include

      system "./build.sh", "ssl"
    end

    (buildpath/"src/mongo-tools").install Dir["src/mongo/gotools/bin/*"]

    args = %W[
      --prefix=#{prefix}
      --ssl
      --use-new-tools
      -j#{ENV.make_jobs}
      CC=#{ENV.cc}
      CXX=#{ENV.cxx}
      CCFLAGS=-I#{Formula["openssl"].opt_include}
      LINKFLAGS=-L#{Formula["openssl"].opt_lib}
    ]

    args << "--disable-warnings-as-errors" if MacOS.version >= :yosemite

    scons "install", *args

    (buildpath/"mongod.conf").write <<~EOS
      systemLog:
        destination: file
        path: #{var}/log/mongodb/mongo.log
        logAppend: true
      storage:
        dbPath: #{var}/mongodb
      net:
        bindIp: 127.0.0.1
    EOS
    etc.install "mongod.conf"
  end

  def post_install
    (var/"mongodb").mkpath
    (var/"log/mongodb").mkpath
  end

  plist_options :manual => "mongod --config #{HOMEBREW_PREFIX}/etc/mongod.conf"

  def plist; <<~EOS
    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
    <plist version="1.0">
    <dict>
      <key>Label</key>
      <string>#{plist_name}</string>
      <key>ProgramArguments</key>
      <array>
        <string>#{opt_bin}/mongod</string>
        <string>--config</string>
        <string>#{etc}/mongod.conf</string>
      </array>
      <key>RunAtLoad</key>
      <true/>
      <key>KeepAlive</key>
      <false/>
      <key>WorkingDirectory</key>
      <string>#{HOMEBREW_PREFIX}</string>
      <key>StandardErrorPath</key>
      <string>#{var}/log/mongodb/output.log</string>
      <key>StandardOutPath</key>
      <string>#{var}/log/mongodb/output.log</string>
      <key>HardResourceLimits</key>
      <dict>
        <key>NumberOfFiles</key>
        <integer>4096</integer>
      </dict>
      <key>SoftResourceLimits</key>
      <dict>
        <key>NumberOfFiles</key>
        <integer>4096</integer>
      </dict>
    </dict>
    </plist>
  EOS
  end

  test do
    begin
      (testpath/"mongodb_test.js").write <<~EOS
        printjson(db.getCollectionNames())
        // create test collection
        db.test.insertOne(
          {
            "name": "test"
          }
        )
        printjson(db.getCollectionNames())
        // shows documents
        cursor = db.test.find({})
        while (cursor.hasNext()) {
          printjson(cursor.next())
        }
        db.test.deleteMany({})
        // drop test collection
        db.test.drop()
        printjson(db.getCollectionNames())
      EOS
      pid = fork do
        exec "#{bin}/mongod", "--port", "27018", "--dbpath", testpath
      end
      sleep 1
      system "#{bin}/mongo", "localhost:27018", testpath/"mongodb_test.js"
    ensure
      Process.kill "SIGTERM", pid
      Process.wait pid
    end
  end
end