#!/usr/bin/env ruby
# encoding: utf-8
#
# Copyright (c) 2014-2017 Yegor Bugayenko
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the 'Software'), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

STDOUT.sync = true

require 'slop'
require 'nokogiri'
require_relative '../lib/pdd'
require_relative '../lib/pdd/version'

args = []
args += File.read('.pdd').split(/\s+/).map(&:strip) if File.exist?('.pdd')
args += ARGV

opts = Slop.parse(args, strict: true, help: true) do |o|
  o.banner = "Usage (#{PDD::VERSION}): pdd [options]"
  o.bool '-h', '--help', 'Show these instructions'
  o.bool '-v', '--verbose', 'Enable verbose mode'
  o.bool '-q', '--quiet', 'Enable quiet mode'
  o.bool '--version', 'Show current version'
  o.string '-s', '--source', 'Source directory to parse'
  o.string '-f', '--file', 'File to save XML into'
  o.array '-e', '--exclude', 'Glob pattern to exclude'
  o.string '-t', '--format', 'Format to use (xml|html)'
  o.array '-r', '--rule', 'Rule to apply'
end

raise '-f is mandatory when using -v' if opts.verbose? && !opts.file?

if opts.help?
  puts opts
  exit
end

if opts.version?
  puts PDD::VERSION
  exit
end

Encoding.default_external = Encoding::UTF_8
Encoding.default_internal = Encoding::UTF_8
file = opts.file? ? File.new(opts[:file], 'w') : STDOUT
output = PDD::Base.new(opts).xml
if opts[:format]
  if opts[:format] == 'html'
    xslt = File.join(
      File.dirname(File.dirname(__FILE__)),
      'assets', 'puzzles.xsl'
    )
    output = Nokogiri::XSLT(File.read(xslt)).transform(Nokogiri::XML(output))
  elsif opts[:format] != 'xml'
    raise 'invalid format, use html or xml'
  end
end
file << output