#!/usr/bin/env ruby

require 'optparse'
begin
  require 'js2bookmarklet'
rescue LoadError => e
  puts "Error: The js2bookmarklet gem is required"
  exit 1
end

options = {}
input_file = ARGV.last
output_file = nil
usage = "Usage: js2bookmarklet [options] [input file]"    

OptionParser.new do |opts|
  opts.banner = usage
  opts.on("-o [file name]", "--output [file name]", "Output file") do |o|
    output_file = o
  end
  opts.on("-a [text]", "--link-text [text]", "Link text") do |t|
    options["text"] = t
  end
  opts.on("-t [title]", "--link-title [title]", "Link title") do |t|
    options["title"] = t
  end
end.parse!

if File.exists?(input_file.to_s)
  input = open(input_file).read
  output = Js2bookmarklet.new(input, options).to_bookmarklet
  if output_file
    open(output_file, "w").write(output)
  else
    puts output
  end
else
  puts usage
  puts "Error: Input file does not exist"
  exit 1
end