#!/usr/bin/env ruby
# frozen_string_literal: true

require "optparse"
require_relative "../lib/code-ruby"

options = {
  timeout: 0,
  profile: false,
  profiler: "text",
  input: "",
  parse: false
}

argv = OptionParser
  .new do |opts|
    opts.banner = "Usage: code INPUT\n\n"

    opts.on("-v", "--version", "Version of Code") do |_input|
      puts Code::Version
      exit
    end

    opts.on(
      "-i INPUT",
      "--input INPUT",
      "Input in the Code language (String or File)"
    ) do |input|
      input = File.read(input) if File.exist?(input)

      options[:input] = input
    end

    opts.on("-p", "--parse", "Parser tree for input") do |parse|
      options[:parse] = parse
    end

    opts.on(
      "-t TIMEOUT",
      "--timeout TIMEOUT",
      "Set timeout in seconds"
    ) { |timeout| options[:timeout] = timeout.to_f }

    opts.on("--profile", "Profile Ruby code") do |_timeout|
      require "ruby-prof"
      options[:profile] = true
    end

    opts.on(
      "--profiler TYPE",
      "Profiler output type (text (default) or html)"
    ) do |profiler|
      require "ruby-prof"
      options[:profile] = true
      options[:profiler] = profiler
    end
  end
  .parse!

options[:input] = argv.join(" ") if options[:input].empty?

if options[:input].empty?
  abort <<~HELP
    Usage: code INPUT

      -v, --version                    Version of Code
      -i, --input INPUT                Input in the Code language (String or File)
      -p, --parse                      Parser tree for input
      -t, --timeout TIMEOUT            Set timeout in seconds
          --profile                    Profile Ruby code
          --profiler TYPE              Profiler output type (text (default) or html)
  HELP
end

RubyProf.start if options[:profile]

if options[:parse]
  pp Code::Parser.parse(options[:input]).to_raw
else
  print Code.evaluate(
          options[:input],
          output: $stdout,
          error: $stderr,
          timeout: options[:timeout]
        )
end

if options[:profile]
  result = RubyProf.stop

  if options[:profiler] == "text"
    printer = RubyProf::FlatPrinter.new(result)
    printer.print($stdout)
  elsif options[:profiler] == "html"
    printer = RubyProf::GraphHtmlPrinter.new(result)
    printer.print($stdout)
  else
    abort "#{options[:profiler]} not recognized"
  end
end