class AfterTheDeadline

# File lib/after_the_deadline.rb, line 52
def check(data)
  results = Crack::XML.parse(perform('/checkDocument', :data => data))['results']
  return [] if results.nil? # we have no errors in our data

  raise "Server returned an error: #{results['message']}" if results['message']
  errors = if results['error'].kind_of?(Array)
    results['error'].map { |e| AfterTheDeadline::Error.new(e) }
  else
    [AfterTheDeadline::Error.new(results['error'])]
  end

  # Remove any error types we don't care about
  errors.reject! { |e| @@ignore_types.include?(e.description) }

  # Remove spelling errors from our custom dictionary
  errors.reject! { |e| e.type == 'spelling' && @@custom_dictionary.include?(e.string) }
  return errors
end

# File lib/after_the_deadline.rb, line 75
def metrics(data)
  results = Crack::XML.parse(perform('/stats', :data => data))['scores']
  return if results.nil? # we have no stats about our data
  AfterTheDeadline::Metrics.new results['metric']
end

# File lib/after_the_deadline.rb, line 34
def set_api_key(key)
  @@api_key = key
end

# File lib/after_the_deadline.rb, line 22
def set_custom_dictionary(dict)
  if dict.kind_of?(Array)
    @@custom_dictionary = dict
  elsif dict.kind_of?(String)
    File.open(dict) { |f| @@custom_dictionary = f.readlines.map &:strip }
  end
end

# File lib/after_the_deadline.rb, line 30
def set_ignore_types(types)
  @@ignore_types = types if types.kind_of?(Array)
end

# File lib/after_the_deadline.rb, line 38
def set_language(language)
  language.downcase!
  unless AfterTheDeadline::SUPPORTED_LANGUAGES.include? language
    raise AfterTheDeadline::Exception.new ("Unsupported language #{language}. Supported languages are #{AfterTheDeadline::SUPPORTED_LANGUAGES}")
  end

  @uri = 'en'.eql?(language) ? BASE_URI : "http://#{language}.service.afterthedeadline.com"
  # do not return anything (the assignation in this case)
  nil
end

# File lib/after_the_deadline.rb, line 82
def perform(action, params)
  params[:key] = @@api_key if @@api_key
  response = Net::HTTP.post_form URI.parse("#{@uri}#{action}"), params
  raise "Unexpected response code from AtD service: #{response.code} #{response.message}" unless response.is_a? Net::HTTPSuccess
  response.body
end