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# frozen_string_literal: true
class LanguageDetector
attr_reader :text, :account
def initialize(text, account = nil)
@text = text
@account = account
@identifier = CLD3::NNetLanguageIdentifier.new(1, 2048)
end
def to_iso_s
detected_language_code || default_locale
end
def prepared_text
simplified_text.strip
end
private
def detected_language_code
result.language.to_sym if detected_language_reliable?
end
def result
@result ||= @identifier.find_language(prepared_text)
end
def detected_language_reliable?
result.reliable?
end
def simplified_text
text.dup.tap do |new_text|
URI.extract(new_text).each do |url|
new_text.gsub!(url, '')
end
new_text.gsub!(Account::MENTION_RE, '')
new_text.gsub!(Tag::HASHTAG_RE, '')
new_text.gsub!(/\s+/, ' ')
end
end
def default_locale
account&.user_locale&.to_sym || nil
end
end