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

require 'pwn'
require 'optparse'
require 'yaml'

opts = {}
OptionParser.new do |options|
  options.banner = "USAGE:
    #{$PROGRAM_NAME} [opts]
  "

  options.on('-cYPATH', '--yaml-config=YPATH', '<Required - YAML Config Containing Access & Secret Keys for Authentication>') do |c|
    opts[:yaml_config] = c
  end

  options.on('-nVALUE', '--scan-name=VALUE', '<Required - Name of Scan to Launch>') do |n|
    opts[:scan_name] = n
  end

  options.on('-rRPATH', '--report-path=RPATH', '<Required - Path / Filename of Report>') do |r|
    opts[:path_to_export] = r
  end

  options.on('-fFORMAT', '--report-format=FORMAT', '<Optional - Report Format :csv|:db|:html|:nessus|:pdf (defaults to :csv)>') do |f|
    opts[:format] = f
  end
end.parse!

if opts.empty?
  puts `#{$PROGRAM_NAME} --help`
  exit 1
end

begin
  yaml_config = opts[:yaml_config]

  raise "YAML Config Not Found: #{yaml_config}" unless File.exist?(yaml_config)

  yaml = YAML.load_file(
    yaml_config,
    symbolize_names: true
  )

  access_key = yaml[:access_key]
  secret_key = yaml[:secret_key]
  scan_name = opts[:scan_name]
  path_to_export = opts[:path_to_export]
  format = opts[:format]

  nessus_obj = PWN::Plugins::NessusCloud.login(
    access_key: access_key,
    secret_key: secret_key
  )

  scan = PWN::Plugins::NessusCloud.get_scans(
    nessus_obj: nessus_obj,
    name: scan_name
  )
  scan_id = scan[:id]

  PWN::Plugins::NessusCloud.launch_scan(
    nessus_obj: nessus_obj,
    scan_id: scan_id
  )

  scan_status = 'initializing'

  loop do
    print '.'
    sleep 60

    scan_status_resp = PWN::Plugins::NessusCloud.get_scan_status(
      nessus_obj: nessus_obj,
      scan_id: scan_id
    )

    scan_status = scan_status_resp[:status]
    break if scan_status != 'initializing' && scan_status != 'pending' && scan_status != 'running'
  end

  raise "Scan status reached an unexpected condition: #{scan_status}.  Re-verify the scan config for, '#{scan_name}' and try again." unless scan_status == 'completed'

  puts 'scan complete.'

  print "Exporting results to #{path_to_export}..."
  PWN::Plugins::NessusCloud.export_scan_results(
    nessus_obj: nessus_obj,
    scan_id: scan_id,
    path_to_export: path_to_export,
    format: format
  )
  puts 'complete.'
rescue Interrupt
  puts 'CTRL+C detected...goodbye.'
rescue StandardError => e
  raise e
end