docs.rb

require 'sinatra'
require 'indextank'
require 'pdfkit'
require 'coderay'
require 'rack/codehighlighter'

require './topic'
require './indicators'
require './api'
require './lib/term.rb'
require './pdfmaker'
require './version.rb'


class Docs < Sinatra::Base
  unless development?
    PDFKit.configure do |config|
     config.wkhtmltopdf = File.expand_path(File.join( File.dirname(__FILE__), 'bin', 'wkhtmltopdf-amd64')).to_s
    end
  end

  use PdfMaker
  use Rack::Codehighlighter, :coderay, :markdown => true, :element => "pre>code",
    :pattern => /:::(\w+)\s*(\n|&#x000A;)/i, :logging => false

  $LOAD_PATH << File.dirname(__FILE__) + '/lib'

  set :app_file, __FILE__
  enable :static

  not_found do
    begin
    # puts "/v/2.2#{request.path}"
    # puts "****#{request.path.split('/')[1]}:#{request.path.split('/')[2]}"
    @alt_url = ''
    topic = request.path.split('/')[4]
    subpath = request.path.split('/')[3]
    @alt_url = "#{request.scheme}://#{request.host}/en/2.2.0/#{subpath}/#{topic}"
    # puts @alt_url

    docversion = '2.2.0'
    if topic.include?('/')
        topic_file = topic
      elsif subpath
        if docversion.nil?
          # topic_file = File.join(AppConfig['dirs'][subpath], "#{topic}.md")
        else
          topic_file = File.join("docs/en/#{docversion}/#{subpath}/", "#{topic}.md")
        end
      else
        if docversion.nil?
         topic_file = "#{settings.root}/docs/#{topic}.md"
        else
         topic_file = "#{settings.root}/docs/en/#{docversion}/#{topic}.md"
        end
      end
    if  topic == 'apicompatibility'
      source = Indicators.apimatrix_markdown()
    else
      source = File.read(topic_file)
    end
    source = source
    # puts "SOURCE:#{source}"
     topic = Topic.load(topic, source)
    @alt_title   = topic.title
    @alt_content = topic.content
    @alt_intro   = topic.intro
    @alt = true
    erb :not_found

    rescue Exception => e
      puts "ERROR:#{e}"
      @alt=false
      erb :not_found
    end
  end

  ['/en/2.2.0','/en/2.2.0/','/en/2.2.0/home'].each do |path|
    get path do
      @title = "Home"
      @print = 0
      @docversion = '2.2.0'
      cache_long
      erb :oldverhome
    end
  end

  ['/'].each do |path|
     get path do
      puts ENV["RACK_ENV"]
      @title = "Home"
      @print = 0
      if ENV["RACK_ENV"] != 'production'
        redirect "en/edge"
      else
        @docversion = AppConfig['current_version']
      end
      @docversion = params[:vnum]
      if @docversion.nil?
        @docversion = AppConfig['current_version']
      end
      cache_long
      @recent_guides = recent_updates(5,'guide OR rhoconnect',@docversion)
      @recent_api = recent_updates(5,'api',@docversion)
      @recent_blogs = recent_updates(8,'blog','')
      erb :index
    end
  end

  ['/', '/home', '/en/:vnum', '/en/:vnum/home'].each do |path|
    get path do
      @title = "Home"
      @print = 0
      @docversion = nil
      @docversion = params[:vnum]
      if @docversion.nil?
        @docversion = AppConfig['current_version']
      end
      cache_long
      @recent_guides = recent_updates(5,'guide OR rhoconnect',@docversion)
      @recent_api = recent_updates(5,'api',@docversion)
      @recent_blogs = recent_updates(8,'blog','')

      erb :index
    end
  end

  get '/print/home' do
    @print = 1
    cache_long
    erb :index
  end

  get '/search' do
    @print = 0
    q = params[:q].gsub(':','\:')
    page = params[:page].to_i
    category = params[:c]
    version =  params[:v]

    if version.nil? || version == ''
      version = Version::CURR_VERSION
    end
    @docversion = version

    total,dum_prev,dumb_next = search_for(q, page, '','')

    search, prev_page, next_page = search_for(q, page, params[:c],params[:v])

    #searchify object
    categories = {}
      if !category.nil? && category != ''
        catArray = []
        catArray = category.split(",")
        categories["category"] = catArray
      end
      if !version.nil? && version != ''
        verArray = []
        verArray = version.split(",")
        categories["version"] = verArray
      end
      # puts total
    erb :search, :locals => {:search => search, :total => total, :query => params[:q], :category => category, :version => version, :prev_page => prev_page, :next_page => next_page, :categories => categories}
  end

  get '/opensearch' do
	content_type 'application/xml', :charset => 'utf-8'


    @print = 0
    page = params[:page].to_i
    search, prev_page, next_page = search_for(params[:q], page, params[:c],params[:v])

  	xml_string = '<?xml version="1.0" encoding="UTF-8"?>'
    xml_string +=  ' <rss version="2.0" '
    xml_string +=  '  xmlns:opensearch="http://a9.com/-/spec/opensearch/1.1/"'
    xml_string +=  '  xmlns:atom="http://www.w3.org/2005/Atom">'
    xml_string +=  '    <channel>'
    xml_string +=  '      <title>RhoMobile Suite Documentation</title>'
    xml_string +=  '      <link>http://docs.rhomobile.com</link>'
    xml_string +=  '      <description>Search results for docs.rhomobile.com</description>'
    xml_string +=  '      <opensearch:totalResults>' + search['matches'].to_s + '</opensearch:totalResults>'
    xml_string +=  '      <opensearch:startIndex>' + ((page + 1) * 10).to_s + '</opensearch:startIndex>'
    xml_string +=  '      <opensearch:itemsPerPage>10</opensearch:itemsPerPage>'
    xml_string +=  '      <opensearch:Query role="request" searchTerms="' + params[:q] + '" startPage="1" />'
    search['results'].each do |result|
    xml_string +=  '<item>'
    xml_string +=  '       <title><![CDATA[' + result['title'] + ']]></title>'
    xml_string +=  '       <link>' + request.base_url + '/' + result['docid'] + '</link>'
    xml_string +=  '<pubDate>' + File.mtime('docs/' + result['docid'] + '.md').to_s + '</pubDate>'
    xml_string +=  '       <description><![CDATA['
    xml_string +=  result['snippet_text']
    xml_string +=  '       ]]></description>'
    xml_string +=  '     </item>'

  end
  xml_string +=  '   </channel>'
  xml_string +=  ' </rss>	'
#<?xml version="1.0" encoding="UTF-8"?>
# <rss version="2.0"
#      xmlns:opensearch="http://a9.com/-/spec/opensearch/1.1/"
#      xmlns:atom="http://www.w3.org/2005/Atom">
#   <channel>
#     <title>Example.com Search: New York history</title>
#     <link>http://example.com/New+York+history</link>
#     <description>Search results for "New York history" at Example.com</description>
#     <opensearch:totalResults>4230000</opensearch:totalResults>
#     <opensearch:startIndex>21</opensearch:startIndex>
#     <opensearch:itemsPerPage>10</opensearch:itemsPerPage>
#     <atom:link rel="search" type="application/opensearchdescription+xml" href="http://example.com/opensearchdescription.xml"/>
#     <opensearch:Query role="request" searchTerms="New York History" startPage="1" />
#     <item>
#       <title>New York History</title>
#       <link>http://www.columbia.edu/cu/lweb/eguids/amerihist/nyc.html</link>
#       <description>
#         ... Harlem.NYC - A virtual tour and information on
#         businesses ...  with historic photos of Columbia's own New York
#         neighborhood ... Internet Resources for the City's History. ...
#       </description>
#     </item>
#   </channel>
# </rss>

	#xml_string = '<?xml version="1.0" encoding="UTF-8"?>'
	#xml_string += '<rss version="2.0"  xmlns:opensearch="http://a9.com/-/spec/opensearch/1.1/"    xmlns:atom="http://www.w3.org/2005/Atom">'
#		xml_string += '   <channel>	     <title>Example.com Search: New York history</title>	     <link>http://example.com/New+York+history</link>	     <description>Search results for "New York history" at Example.com</description>	     <opensearch:totalResults>4230000</opensearch:totalResults>	     <opensearch:startIndex>21</opensearch:startIndex>	     <opensearch:itemsPerPage>10</opensearch:itemsPerPage>	     <atom:link rel="search" type="application/opensearchdescription+xml" href="http://example.com/opensearchdescription.xml"/>	     <opensearch:Query role="request" searchTerms="New York History" startPage="1" />	     <item>	       <title>New York History</title>	       <link>http://www.columbia.edu/cu/lweb/eguids/amerihist/nyc.html</link>	       <description>	         ... Harlem.NYC - A virtual tour and information on 	         businesses ...  with historic photos of Columbias own New York 	         neighborhood ... Internet Resources for the Citys History. ...	       </description>	     </item>	   </channel>	 </rss>'
    xml_string
  end


  #get '/:topic' do
  # TODO: use proper regex

  ['/tutorial/:step/:topic/?',  '/tutorial/:topic/?','/en/:vnum/tutorial/:step/:topic/?',  '/en/:vnum/tutorial/:topic/?'].each do |path|
    get path do
      cache_long
      @docversion = params[:vnum]
      if @docversion.nil?
        @docversion = AppConfig['current_version']
      end

      # If the topic ends in ".pdf" or ".print", tell render_topic to use the print view

      topic_doc = params[:topic]
      if topic_doc != 'welcome'
        @tut = TUT.steps(params[:topic])
        @doc = @tut[0]
        @docTitle = @tut[1]
        @baseurl = @tut[3]
        @steps = @tut[4]
        @topic = params[:topic]
        @step = params[:step]
        @prevStep = ''
        @nextStep = ''
        @currindex = -1
        @stepTitle = ''
        @steps.each do |gitlabel, title|

          @currindex += 1 if !@step.nil?
          @stepTitle = title if !@step.nil?
          break if @step == gitlabel
        end
        @prevStep = @steps[@currindex - 1][0] if @currindex > 0
        @nextStep = @steps[@currindex + 1][0] if @currindex < @steps.length - 1
        @codediffUrl = "#{@baseurl}/compare/#{@prevStep}...#{@step}" if @prevStep != '' && @baseurl != ''

        if !@step.nil?
          topic_doc += '.' + @step
        end
        render_topic topic_doc, 'tutorial', 0, @docversion
        erb :tutorial
      else
        render_topic topic_doc, 'tutorial', 0, @docversion
        erb :topic, :layout => !pjax?
      end

    end
  end

  ['/en/:vnum/:topic/?', '/en/:vnum/:subpath/:topic/?'].each do |path|
    get path do
      # puts params[:vnum]
      # puts params[:subpath]
      # puts params[:topic]

      cache_long
      @docversion = nil

      # If the topic ends in ".pdf" or ".print", tell render_topic to use the print view
      if params[:topic] =~ /(\.pdf|\.print)$/
        newtopic = params[:topic].gsub(/(\.pdf|\.print)/,"")
        render_topic newtopic, params[:subpath], 1

      else
        if params[:topic].nil?
          render_topic params[:topic], params[:subpath], 0
        else
          @docversion = params[:vnum]
          render_topic params[:topic], params[:subpath], 0, params[:vnum]
        end

      end
    end
  end

get '/exists' do
  status 200
  topic = params[:doc]
  if !File.exist?("docs/#{topic}.md")
    status 404
  end
end

  helpers do
  	def render_topic(topic, subpath = nil, print = 0, docversion = nil)
         # puts "#{subpath} :#{topic} :  #{docversion}"
      if TOC.find("/#{subpath}/#{topic}") == '' && docversion.nil?

          #if not in TOC then make it default to 2.2 version
          # docversion='2.2'
          # @docversion = '2.2'
          # redirect "/v/#{docversion}/#{subpath}/#{topic}"
      end
      @topic_file = topic_file(topic,subpath,docversion)
       # puts @topic_file
      if  topic == 'apicompatibility'
        source = Indicators.apimatrix_markdown()
      else
        source = File.read(topic_file(topic, subpath,docversion))
      end
      source = source
      @topic = Topic.load(topic, source)

  		@title   = @topic.title
  		@content = @topic.content
      @intro   = @topic.intro
      @indicatorslang = ""
      @oslist = ""

      if(subpath and topic)
  		  # @title  += Indicators.load('/' + subpath + '/' + topic + '/')
         @indicatorslang = Indicators.languages('/' + subpath + '/' + topic + '/')
         @oslist = Indicators.oslist('/' + subpath + '/' + topic + '/')
		  end

  		@toc     = @topic.toc
  		@toc_sub     = @topic.toc_sub
      @body    = @topic.body

  		@print = print
      if subpath.nil? || subpath == ''
        @topicmodel = Topic.model('/' + topic)
        erb :topic, :layout => !pjax?
      else
        @topicmodel = Topic.model(subpath + '/' + topic)
        if subpath == 'api'
          erb :topic_sidebar, :layout => !pjax?
        else
          erb :topic, :layout => !pjax?
        end
      end

  	rescue Errno::ENOENT
  		status 404
  	end

  	def search_for(query, page = 0, category='', version='')
      client = IndexTank::Client.new(ENV['SEARCHIFY_API_URL'])
      index = client.indexes(AppConfig['index'])

      categories = {}
      if !category.nil? && category != ''
        catArray = []
        catArray = category.split(",")
        categories["category"] = catArray
         categories["chunknum"] = '0'
      end
      if !version.nil? && version != ''
        verArray = []
        verArray = version.split(",")
        categories["version"] = verArray
      end



      search = index.search(query, :start => page * 10, :len => 10,
        :fetch => 'title,dockey,version,category,docexternal',
        :snippet => 'text', :category_filters => categories)
      next_page =
        if search and search['matches'] and search['matches'] > (page + 1) * 10
          page + 1
        end
      prev_page =
        if page > 0
          page - 1
        end

      [search, prev_page, next_page]
  	end

    def recent_updates(count = 5, category='', version='')
      client = IndexTank::Client.new(ENV['SEARCHIFY_API_URL'])

      index = client.indexes(AppConfig['index'])
      query = "category:(#{category})"
      categories = {
        "version" => version,
        "chunknum" => '0'
      }
      # puts categories
      if version != ''
      search = index.search(query,
       :len => count,
       :function => 1,
       :fetch => 'title,timestamp,docexternal,dockey',
       :category_filters => categories)
      else
      search = index.search(query,
       :len => count,
       :function => 1,
       :fetch => 'title,timestamp,docexternal,dockey')
      end

      puts search["matches"]
      search
    end


  	def topic_file(topic, subpath = nil,docversion = nil )
      # puts "topic_file:#{topic}:#{subpath}:#{docversion}"
  	  if topic.include?('/')
        topic
  		# elsif subpath
    #     if docversion.nil?
    #       File.join(AppConfig['dirs'][subpath], "#{topic}.md")
    #     else
    #       File.join((AppConfig['dirs'][subpath]).gsub("docs/","v/#{docversion}/docs/"), "#{topic}.md")
    #     end
  		else
        File.join("docs/en/#{docversion}/#{subpath}/#{topic}.md")
  		end
  	end

  	def topic_path
  	  params[:subpath] ? ['en', params[:vnum], params[:subpath], params[:topic]].join('/') : params[:topic]
    end

  	def cache_long
  		response['Cache-Control'] = "public, max-age=#{60 * 60}" unless Sinatra::Base.environment == :development
  	end

  	def slugify(title)
  		title.downcase.gsub(/[^a-z0-9 -]/, '').gsub(/ /, '-')
  	end

  	def sections
      #toc.rb in root will be latest TOC
      #doc versions can have unique TOC found in /v/VERSION/toc.rb
      TOC.reload(params[:vnum])
  		TOC.sections
  	end

    def related
      #toc.rb in root will be latest TOC
      #doc versions can have unique TOC found in /v/VERSION/toc.rb

      TOC.related
    end

  	def next_section(current_slug, root=sections)
  		return sections.first if current_slug.nil?
  		# root.each_with_index do |(slug, title, group, topics), i|
  		# 	if current_slug == slug and i < root.length-1
  		# 		return root[i+1]
  		# 	elsif topics.any?
  		# 		res = next_section(current_slug, topics)
  		# 		return res if res
  		# 	end
  		# end
  		# nil
  	end

    def pjax?
      env['HTTP_X_PJAX'] || params['_pjax']
    end

  	alias_method :h, :escape_html
  end
end

module TOC
	extend self

  def reload(docversion)
    @sections = []
    if docversion.nil?
      file = File.dirname(__FILE__) + "/docs/en/#{AppConfig['current_version']}/toc.rb"
    else
      file = File.dirname(__FILE__) + "/docs/en/#{docversion}/toc.rb"
    end
    eval File.read(file), binding, file
  end

	def sections
		@sections ||= []
	end

	# define a section
	def section(name, title,group)
		sections << [name, title,group, []]
    yield if block_given?
	end


	# define a topic
	def topic(name, title)
		sections.last.last << [name, title, []]
	end

  def find(path)
    puts "find path: #{path}"
    compare = path.dup
    compare.slice!(0)
    compare.gsub!(/v\/([^\/]+)\//,'')
    found=''
    # found = @sections[0][0] # Default to first section
    @sections.map do |section|
      section[3].map do |slug, title, _|

        found = section[0] if slug == compare

      end
    end
    puts "Found:#{found}"
    found
  end

  def findGroup(path)
    compare = path.dup
    compare.slice!(0)
    compare.gsub!(/v\/([^\/]+)\//,'')
    found = 'Home' # Default to first section
    @sections.map do |section|
      section[3].map do |slug, title, group, _|
        found = section[2] if slug == compare
      end
    end
    found
  end
  	file = File.dirname(__FILE__) + "/docs/en/#{AppConfig['current_version']}/toc.rb"
	eval File.read(file), binding, file
end

module TUT
  extend self

  def tutorials
    @tutorials ||= []
  end

  # define a section
  def tutorial(name, title,group,giturl)
    tutorials << [name, title,group, giturl, []]
    yield if block_given?
  end

  # define a topic
  def gitlabel(name, title)
    tutorials.last.last << [name, title, []]
  end

  def steps(tut)
    # puts "#{tut}"
    found={}
    # found = @tutorials[0][0] # Default to first section
    @tutorials.each do |tutsection|
      # puts tutsection
      if tutsection[0] == tut
        found = tutsection
      end
    end
    # puts "Found:#{found}"
    found
  end

  file = File.dirname(__FILE__) + '/tuts.rb'
  eval File.read(file), binding, file
end