/app/helpers/spanish_verb_conjugation_helper.rb

module SpanishVerbConjugationHelper

  COMMON_VERBS = %w[ser ir hacer tener estar ver decir poder comer dar querer poner saber venir hablar salir haber pedir leer dormir traer llegar jugar conocer empezar volver vivir oir seguir pensar escribir]

  def common_verbs
    COMMON_VERBS
  end

  def verb_links
    more_verbs = GlobalVerb.random_verbs(20).find_all{|v| !v.lookup_key.index('_') && !common_verbs.member?(v.verb) && v.verb.length < 12}.collect{|v| v.verb}
    all_verbs = more_verbs + common_verbs
    verbs_html = all_verbs.sort.collect{|cv| %Q{<a href="/spanish_verb_conjugation/#{cv}">#{cv}</a>} }.join("  ")
    message = %Q{
      <style>
        .verb-conjugation-links a { display:block; float:left; width: 60px; height:20px; padding:3px; margin-right: 10px; text-align:left; }
      </style>
      <p>Listed below are some of the commonly selected verbs.  Click on the verb and you will see its full conjugation and translation.
      <br />
      <br />
      <div class="verb-conjugation-links">
	#{verbs_html}
      </div>
      <br clear="all" />
      </p>
    }
    message.html_safe
  end

  def most_recent_verb_links
    more_verbs = GlobalVerb.last(5).find_all{|v| !v.lookup_key.index('_') && !common_verbs.member?(v.verb) && v.verb.length < 12}.collect{|v| v.verb}
    all_verbs = more_verbs
    verbs_html = all_verbs.sort.collect{|cv| %Q{<a href="/spanish_verb_conjugation/#{cv}">#{cv}</a>} }.join("<br />  ")
    message = %Q{
      <div class="verb-conjugation-links">
  #{verbs_html}
      </div>
      <br clear="all" />
    }
    message.html_safe
  end

  # this is purely for SEO purposes - ask before changing
  def seo_for_conjugation_home
    return '' if at_conjugation_home? 
    link = %Q{<a href="/spanish_verb_conjugation">Spanish Verb Conjugation</a>} 
    return "Please spread the word about our #{link} tool!".html_safe  if request.fullpath.end_with?('er')	# Vary message slightly for 'er' verbs
    return '' if request.fullpath.end_with?('se')								# Remove message completely for some verbs
    return "Return to the #{link} index page".html_safe 
  end


  # true if this is the conjugation home page
  # false if it's on a verb page
  def at_conjugation_home?
    request.fullpath.end_with?('spanish_verb_conjugation')
  end

  def format_conjugation(global_verb)
    conjugation = global_verb.conjugations
    return conjugation if global_verb.source!='jehle'
    html = conjugation.gsub( %r{.*?(<TABLE.*?</TABLE>).*}m, '\1')
    html.gsub!( %r{<SUP>.*?</SUP>}, '')
    html.gsub!( %r{<i>(.*?)</i>}i, '\1')
    html.gsub!( %r{osotros,&nbsp;+-as}, 'osotros')
    html.gsub!( %r{Uds./ellos/ellas}, 'ellos/ellas/Uds.')
    #html.gsub!( %r{Ud./..?l/ella}u, '?Šl/ella/Ud.')
    html
  end


end