boutes

#!/usr/bin/env ruby
# boutes - bundle exec rails routes cache
require "colorize"
require "optimist"
require_relative "lib/dbrady_cli"
String.disable_colorization unless $stdout.tty?

class Application
  include DbradyCli

  opt_flag :grape, :line_numbers, :rails
  opt_reader :output

  DEFAULT_BOUTES_PATH = File.expand_path("tmp/rails-routes.log").freeze

  def run
    @opts = Optimist.options do
      banner <<~BANNER
        Usage:
          boutes           - create boutes cache
          boutes [<regex>] - search boutes cache

        Options:
      BANNER
      opt :debug, "Print extra debug info", default: false
      opt :grape, "Emit grape API routes", default: true
      opt :line_numbers, "Include line numbers in output", short: :l, default: false
      opt :output, "Name of file to output", default: DEFAULT_BOUTES_PATH
      opt :pretend, "Print commands but do not run them", default: false
      opt :rails, "Emit rails routes", default: true
      opt :quiet, "Run with minimal output", default: false
      opt :verbose, "Run with verbose output (overrides --quiet)", default: false
    end
    opts[:quiet] = !opts[:verbose] if opts[:verbose_given]
    puts opts.inspect if opts[:debug]

    cache_routes if ARGV.empty? || !boutes_file_exists?

    run_command %Q|ag --nonumbers -i "#{ARGV.first}" "#{boutes_path}"| unless ARGV.empty?
  end

  def cache_routes
    puts "Caching routes."
    run_command "bin/rails routes > #{boutes_path}" if rails?
    run_command "bin/rails grape:routes >> #{boutes_path}" if grape?
    number_boute_file_lines
  end

  def boutes_file_exists?
    File.exist?(boutes_path)
  end

  def number_boute_file_lines
    lines = File.readlines(boutes_path).map(&:rstrip)
    digits = 1 + (Math.log(lines.size) / Math.log(100)).ceil
    format = "%#{digits}d | %s"
    lines_with_numbers = lines.map.with_index(1) do |line, index|
      format % [index, line]
    end
    output_lines = line_numbers? ? lines_with_numbers : lines
    File.open(boutes_path, "w") { |fp| fp.puts output_lines }
  end

  def boutes_path
    @boutes_path ||= opts[:output_given] ? opts[:output] : DEFAULT_BOUTES_PATH
  end

end


if __FILE__ == $0
  Application.new.run
end