app/lib/remote_translations/microsoft/client.rb
class RemoteTranslations::Microsoft::Client
include RemoteTranslations::Microsoft::SentencesParser
CHARACTERS_LIMIT_PER_REQUEST = 5000
PREVENTING_TRANSLATION_KEY = "notranslate".freeze
def call(fields_values, locale)
texts = prepare_texts(fields_values)
valid_locale = RemoteTranslations::Microsoft::AvailableLocales.app_locale_to_remote_locale(locale)
request_translation(texts, valid_locale)
end
def fragments_for(text)
return [text] if text.size <= CHARACTERS_LIMIT_PER_REQUEST
split_position = detect_split_position(text)
start_text = text[0..split_position]
end_text = text[split_position + 1..text.size]
fragments_for(start_text) + [end_text]
end
private
def client
@client ||= BingTranslator.new(Tenant.current_secrets.microsoft_api_key)
end
def request_translation(texts, locale)
response = []
split_response = false
if characters_count(texts) <= CHARACTERS_LIMIT_PER_REQUEST
response = client.translate_array(texts, to: locale)
else
texts.each do |text|
response << translate_text(text, locale)
end
split_response = true
end
parse_response(response, split_response)
end
def translate_text(text, locale)
fragments_for(text).map do |fragment|
client.translate_array([fragment], to: locale)
end.flatten
end
def parse_response(response, split_response)
response.map do |translation|
if split_response
build_translation(translation)
else
get_field_value(translation)
end
end
end
def build_translation(translations)
translations.map { |translation| get_field_value(translation) }.join
end
def get_field_value(translation)
notranslate?(translation) ? nil : translation
end
def prepare_texts(texts)
texts.map { |text| text || PREVENTING_TRANSLATION_KEY }
#https://docs.microsoft.com/es-es/azure/cognitive-services/translator/prevent-translation
end
def notranslate?(text)
text.downcase == PREVENTING_TRANSLATION_KEY
end
end