module ActionText::PlainTextConversion

# File lib/action_text/plain_text_conversion.rb, line 6
def node_to_plain_text(node)
  remove_trailing_newlines(plain_text_for_node(node))
end

# File lib/action_text/plain_text_conversion.rb, line 70
def bullet_for_li_node(node, index)
  if list_node_name_for_li_node(node) == "ol"
    "#{index + 1}."
  else
    "•"
  end
end

# File lib/action_text/plain_text_conversion.rb, line 78
def list_node_name_for_li_node(node)
  node.ancestors.lazy.map(&:name).grep(/^[uo]l$/).first
end

# File lib/action_text/plain_text_conversion.rb, line 31
def plain_text_for_block(node, index = 0)
  "#{remove_trailing_newlines(plain_text_for_node_children(node))}\n\n"
end

# File lib/action_text/plain_text_conversion.rb, line 55
def plain_text_for_blockquote_node(node, index)
  text = plain_text_for_block(node)
  text.sub(/\A(\s*)(.+?)(\s*)\Z/m, '\1“\2”\3')
end

# File lib/action_text/plain_text_conversion.rb, line 39
def plain_text_for_br_node(node, index)
  "\n"
end

# File lib/action_text/plain_text_conversion.rb, line 47
def plain_text_for_div_node(node, index)
  "#{remove_trailing_newlines(plain_text_for_node_children(node))}\n"
end

# File lib/action_text/plain_text_conversion.rb, line 51
def plain_text_for_figcaption_node(node, index)
  "[#{remove_trailing_newlines(plain_text_for_node_children(node))}]"
end

# File lib/action_text/plain_text_conversion.rb, line 60
def plain_text_for_li_node(node, index)
  bullet = bullet_for_li_node(node, index)
  text = remove_trailing_newlines(plain_text_for_node_children(node))
  "#{bullet} #{text}\n"
end

# File lib/action_text/plain_text_conversion.rb, line 11
def plain_text_for_node(node, index = 0)
  if respond_to?(plain_text_method_for_node(node), true)
    send(plain_text_method_for_node(node), node, index)
  else
    plain_text_for_node_children(node)
  end
end

# File lib/action_text/plain_text_conversion.rb, line 19
def plain_text_for_node_children(node)
  texts = []
  node.children.each_with_index do |child, index|
    texts << plain_text_for_node(child, index)
  end
  texts.join
end

# File lib/action_text/plain_text_conversion.rb, line 43
def plain_text_for_text_node(node, index)
  remove_trailing_newlines(node.text)
end

# File lib/action_text/plain_text_conversion.rb, line 27
def plain_text_method_for_node(node)
  :"plain_text_for_#{node.name}_node"
end

# File lib/action_text/plain_text_conversion.rb, line 66
def remove_trailing_newlines(text)
  text.chomp("")
end