#!/usr/bin/env ruby
# encoding: utf-8
#
# Copyright (c) 2014 TechnoPark Corp.
# Copyright (c) 2014 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 'est'
require 'est/version'

opts = Slop.parse(ARGV, strict: true, help: true) do
  banner "Usage (#{Est::VERSION}): est [options]"
  on 'v', 'verbose', 'Enable verbose mode'
  on 'version', 'Show current version'
  on(
    'd',
    'dir',
    'Source directory to parse',
    argument: :required
  )
  on(
    'f',
    'file',
    'File to save output into',
    argument: :required
  )
  on(
    't',
    'format',
    'Format to use (xml|html|text)',
    argument: :required
  )
end

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

if opts.help?
  puts opts
  exit
end

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

Encoding.default_external = Encoding::UTF_8
Encoding.default_internal = Encoding::UTF_8
if opts.file?
  file = File.new(opts[:file], 'w')
  Est.log.info "output saving into #{file.path}"
else
  file = STDOUT
end
output = Est::Base.new(opts).xml
if opts[:format].nil? || opts[:format] == 'text'
  xslt = File.join(
    File.dirname(File.dirname(__FILE__)),
    'assets', 'est-text.xsl'
  )
  output = Nokogiri::XSLT(File.read(xslt)).apply_to(Nokogiri::XML(output))
elsif opts[:format] == 'html'
  Est.log.info 'using HTML format'
  xslt = File.join(
    File.dirname(File.dirname(__FILE__)),
    'assets', 'est.xsl'
  )
  output = Nokogiri::XSLT(File.read(xslt)).transform(Nokogiri::XML(output))
elsif opts[:format] == 'xml'
  Est.log.info 'using XML format'
else
  fail 'invalid format, use html, text, or xml'
end
file << output