#!/usr/bin/env ruby

# A few helpful tips about the Rules file:
#
# * The string given to #compile and #route are matching patterns for
#   identifiers--not for paths. Therefore, you can’t match on extension.
#
# * The order of rules is important: for each item, only the first matching
#   rule is applied.
#
# * Item identifiers start and end with a slash (e.g. “/about/” for the file
#   “content/about.html”). To select all children, grandchildren, … of an
#   item, use the pattern “/about/*/”; “/about/*” will also select the parent,
#   because “*” matches zero or more characters.

require 'pry'
require './cg_config.rb'

preprocess do
  Toc.instance.prepare @items, SECTION_CONFIG
end

compile '/bootstrap/*' do
  nil
end

compile '/tipuesearch/*' do
  nil
end

compile '/content/scripts/*' do
  nil
end

compile "/search_index/tipuesearch_content/" do
  filter :erb
end

compile '*' do
  if item.binary? || item[:status] == "hidden"
    nil
  elsif item[:status] == "hidden"
    nil
  elsif item[:type] == "subsection"
    nil    
  elsif item[:extension] == "haml"
    filter :haml;
    layout 'course'
  else
    item[:extension].split('.').reverse.each do
      |f|
      case f
      when 'md', 'markdown'
        filter :kramdown, coderay_tab_width: 3
      when 'erb'
        filter :erb
      end
    end
    layout 'course'
  end
end

route '/bootstrap/*' do
  @item.identifier.chop + '.' + @item[:extension]
end

route '/tipuesearch/*' do
  @item.identifier.chop + '.' + @item[:extension]
end  

route '/content/' do
  '/index.html'
end

route "/search_index/tipuesearch_content/" do
  '/tipuesearch/js/tipuesearch_content.js'
end

route '*' do
  if item[:extension].nil?
    raise RuntimeError, "Missing required extension: \".#{item.identifier}\""
  elsif item.binary?
    # Write item with identifier /foo/ to /foo.ext
    item.identifier.chop + '.' + item[:extension] rescue binding.pry
  elsif item.identifier == "/search_index/tipuesearch_content/"
      item.identifier.chop + '.' + item[:extension] rescue binding.pry
  elsif item[:status] == "hidden"
    nil
  elsif item[:type] == "subsection"
    nil
  elsif item[:extension] != "css"
    # Write item with identifier /foo/ to /foo/index.html
    item.identifier + 'index.html'
  end
end

layout '*', :erb