#!/usr/bin/env ruby

require_relative '../lib/wayback_machine_downloader'
require 'optparse'
require 'pp'

options = {}
option_parser = OptionParser.new do |opts|
  opts.banner = "Usage: wayback_machine_downloader http://example.com"

  opts.separator ""
  opts.separator "Download an entire website from the Wayback Machine."

  opts.separator ""
  opts.separator "Optional options:"

  opts.on("-f", "--from TIMESTAMP", Integer, "Only files on or after timestamp supplied (ie. 20060716231334)") do |t|
    options[:from_timestamp] = t
  end

  opts.on("-t", "--to TIMESTAMP", Integer, "Only files on or before timestamp supplied (ie. 20100916231334)") do |t|
    options[:to_timestamp] = t
  end

  opts.on("-o", "--only ONLY_FILTER", String, "Restrict downloading to urls that match this filter (use // notation for the filter to be treated as a regex)") do |t|
    options[:only_filter] = t
  end

  opts.on("-x", "--exclude EXCLUDE_FILTER", String, "Skip downloading of urls that match this filter (use // notation for the filter to be treated as a regex)") do |t|
    options[:exclude_filter] = t
  end

  opts.on("-v", "--version", "Display version") do |t|
    options[:version] = t
  end
end.parse!

if (base_url = ARGV[-1])
  options[:base_url] = base_url
  wayback_machine_downloader = WaybackMachineDownloader.new options
  wayback_machine_downloader.download_files
elsif options[:version]
  puts WaybackMachineDownloader::VERSION
else
  puts "You need to specify a website to backup. (e.g., http://example.com)"
  puts "Run `wayback_machine_downloader --help` for more help."
end