module OpenTox
  class Application < Service

    head "/model/?" do
    end

    head '/model/:id/?' do
      halt 404 unless FourStore.head(@uri.split('?').first)
    end


    post "/model/:id/?" do
      if ( (params[:compound_uri] and params[:dataset_uri]) or 
           (!params[:compound_uri] and !params[:dataset_uri])
         )
        bad_request_error "Please submit either a compound_uri or a dataset_uri parameter."
      end
      sparql = "SELECT ?t ?v FROM <#{@uri}> WHERE {
        ?p <#{RDF.type}> <#{RDF::OT.Parameter}> ;
           <#{RDF::DC.title}> ?t ;
           <#{RDF::OT.paramValue}> ?v . }"
      parameters = Hash[FourStore.query(sparql, "text/uri-list").split("\n").collect{|row| row.split("\t")}]
      parameters.each{|k,v| v.sub!(/\^\^.*$/,'')} # remove type information
      parameters[:compound_uri] = params[:compound_uri] if params[:compound_uri] 
      parameters[:dataset_uri] = params[:dataset_uri] if params[:dataset_uri] 
      parameters[:model_uri] = @uri
      sparql = "SELECT ?uri FROM <#{@uri}> WHERE {
        <#{@uri}> <#{RDF::OT.predictedVariables}> ?uri .
      }"
      FourStore.query(sparql, "text/uri-list").split("\n").each do |uri|
        feat = OpenTox::Feature.new( uri)
        if feat.title =~ /confidence/
          parameters[:predicted_confidence_uri] = uri
        else
          parameters[:predicted_variable_uri] = uri 
        end 
      end
      
      # pass parameters instead of model_uri, because model service is blocked by incoming call
      RestClientWrapper.post(File.join($algorithm[:uri],"lazar","predict"), parameters, { :content_type => "text/uri-list"})
    end
  end
end