class Tile38 < Formula
  desc "In-memory geolocation data store, spatial index, and realtime geofence"
  homepage "https://tile38.com/"
  url "https://github.com/tidwall/tile38.git",
    :tag      => "1.19.1",
    :revision => "644f65c7d9801b98e8f6c3c446f54e00e23f81d1"

  bottle do
    cellar :any_skip_relocation
    sha256 "7e0591e39543cdd60fd8d7c8272227e0c5650ea4d6af67e312c39812d6a7e469" => :catalina
    sha256 "1ecbbf44dbb2cd5275091fa8fde44420c79047a43320887ce83d1bc311323191" => :mojave
    sha256 "1a2ec065ec72f51a591fcfc41c0f09155c3aa35e6de08290e6994c73db3f4ca5" => :high_sierra
  end

  depends_on "go" => :build

  def datadir
    var/"tile38/data"
  end

  def install
    commit = Utils.popen_read("git rev-parse --short HEAD").chomp

    ldflags = %W[
      -s -w
      -X github.com/tidwall/tile38/core.Version=#{version}
      -X github.com/tidwall/tile38/core.GitSHA=#{commit}
    ]

    system "go", "build", "-o", bin/"tile38-server", "-ldflags", ldflags.join(" "), "./cmd/tile38-server"
    system "go", "build", "-o", bin/"tile38-cli", "-ldflags", ldflags.join(" "), "./cmd/tile38-cli"
  end

  def post_install
    # Make sure the data directory exists
    datadir.mkpath
  end

  def caveats; <<~EOS
    To connect: tile38-cli
  EOS
  end

  plist_options :manual => "tile38-server -d #{HOMEBREW_PREFIX}/var/tile38/data"

  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>KeepAlive</key>
        <dict>
          <key>SuccessfulExit</key>
          <false/>
        </dict>
        <key>Label</key>
        <string>#{plist_name}</string>
        <key>ProgramArguments</key>
        <array>
          <string>#{opt_bin}/tile38-server</string>
          <string>-d</string>
          <string>#{datadir}</string>
        </array>
        <key>RunAtLoad</key>
        <true/>
        <key>WorkingDirectory</key>
        <string>#{var}</string>
        <key>StandardErrorPath</key>
        <string>#{var}/log/tile38.log</string>
        <key>StandardOutPath</key>
        <string>#{var}/log/tile38.log</string>
      </dict>
    </plist>
  EOS
  end

  test do
    pid = fork do
      exec "#{bin}/tile38-server", "-q"
    end
    sleep 2
    # remove `$408` in the first line output
    json_output = shell_output("#{bin}/tile38-cli server").lines[1]
    tile38_server = JSON.parse(json_output)
    assert_equal tile38_server["ok"], true
  ensure
    Process.kill("HUP", pid)
  end
end