class SnippetConverter

# File lib/snippet_converter.rb, line 158
def self.convert_to_vsc(file)
  # Get the first snippet element
  snippet_element = read_snippet(file)
  # Convert the snippet to VSC snippet format
  create_json_snippet(snippet_element)
end

# File lib/snippet_converter.rb, line 135
def self.create_json_snippet(snippet_element)
  snippet = {}
  snippet_element.elements.each do |element|
    key = KEYS[element.name.to_sym]
    case key
    when 'body'
      value = SnippetConverter.format_body(element.text)
    else
      value = element.text
    end

    snippet[key.to_sym] = value
  end
  snippet
end

# File lib/snippet_converter.rb, line 172
def self.format_body(body)
  # Split by \n
  formatted_body = body.split("\n")
  # Remove any empty element from the array
  formatted_body.delete('')
  formatted_body
end

# File lib/snippet_converter.rb, line 29
def self.info
  name = Gem.loaded_specs['snippet_converter'].name
  name = name.split('_').map(&:capitalize).join
  license = Gem.loaded_specs['snippet_converter'].license
  puts ''
  puts "#{name}, version #{VERSION}"
  puts "#{license} License"
  puts 'Copyright (c) 2018 Jeremie Henri - Cubytz'
  puts ''
end

# File lib/snippet_converter.rb, line 47
def self.parse(args)
  options = OpenStruct.new
  options.encoding = 'utf8'
  options.verbose = false
  options.split = false
  options.output = 'json'
  options.destination = 'snippets'

  opts = OptionParser.new do |op|
    op.banner = "Usage:\tsnippetconverter.rb [options]\n\tFile(s) or directory required"

    op.separator ''
    op.separator 'Specific options:'

    # File
    op.on('-f', '--file file', 'Snippet file(s) to convert') do |f|
      options.file = f
    end

    # Directory
    op.on('-d', '--directory directory', 'Directory of snippets file to convert') do |d|
      options.directory = d
    end

    # Split
    op.on('-s', '--[no-]split', 'Split output into multiple files') do |s|
      options.split = s
    end

    # Output
    op.on('-o', '--output output', 'Output format (default: json)') do |o|
      options.output = o
    end

    # Destination folder
    op.on('--destination destination', 'Destination directory (default: snippets)') do |dest|
      options.destination = dest
    end

    # Verbose
    op.on('-v', '--[no-]verbose', 'Run verbosely') do |v|
      options.verbose = v
    end

    op.separator ''
    op.separator 'Common options:'

    # Print an options summary.
    op.on_tail('-h', '--help', 'Show this help message') do
      info
      puts opts
      exit
    end

    # Print the version.
    op.on_tail('--version', 'Show version') do
      puts "SnippetConverter, version #{VERSION}"
      exit
    end
  end

  opts.parse!(args)
  options
end

# File lib/snippet_converter.rb, line 119
def self.read_snippet(file)
  xmlfile = File.new(file)
  doc = Document.new(xmlfile)

  # return the snippet element
  XPath.first(doc.root, '//snippet')
end

# File lib/snippet_converter.rb, line 186
def self.write_file(file, snippet)
  File.open(file, 'w') do |f|
    # Pretty generate the JSON before saving
    f.write(JSON.pretty_generate(snippet))
  end
end