#!/usr/bin/env ruby
# encoding: utf-8
#
# Copyright (c) 2016 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 'xembly'
require 'xembly/version'
require 'slop'

opts = Slop.parse(ARGV, strict: true, help: true) do |o|
  o.banner = "Usage (#{Xembly::VERSION}): xembly [options] [directives]"
  o.on '-h', '--help', 'Print help' do
    puts o
    exit
  end
  o.on '-v', '--verbose', 'Enable verbose mode'
  o.on '--version', 'Show current version' do
    puts Xembly::VERSION
    exit
  end
  o.string(
    '-d',
    '--dirs',
    'File path with Xembly directives (command line args by default)',
    argument: :required
  )
  o.string(
    '-x',
    '--xml',
    'File to read XML from (stdin by default)',
    argument: :required
  )
  o.string(
    '-f',
    '--file',
    'File to save XML into (stdout by default)',
    argument: :required
  )
end

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

Encoding.default_external = Encoding::UTF_8
Encoding.default_internal = Encoding::UTF_8
output = Xembly::Base.new(opts).xml
file = opts.file? ? File.new(opts[:file], 'w') : STDOUT
file << output