require 'cgi' module SocialHelper::TwitterMethods include MarkdownHelper def prepare_tweet(answer, post_tag = nil) question_content = twitter_markdown answer.question.content.gsub(/\@(\w+)/, '\1') original_question_length = question_content.length answer_content = twitter_markdown answer.content original_answer_length = answer_content.length answer_url = answer_url( id: answer.id, username: answer.user.screen_name, host: APP_CONFIG['hostname'], protocol: (APP_CONFIG['https'] ? :https : :http) ) parsed_tweet = { :valid => false } tweet_text = "" until parsed_tweet[:valid] shortened_question = "#{question_content[0..122]}#{'…' if original_question_length > [123, question_content.length].min}" shortened_answer = "#{answer_content[0..123]}#{'…' if original_answer_length > [124, answer_content.length].min}" components = [ shortened_question, '—', shortened_answer, post_tag, answer_url ] tweet_text = components.compact.join(' ') parsed_tweet = Twitter::TwitterText::Validation::parse_tweet(tweet_text) question_content = question_content[0..-2] answer_content = answer_content[0..-2] end tweet_text end def twitter_share_url(answer) "https://twitter.com/intent/tweet?text=#{CGI.escape(prepare_tweet(answer))}" end end