<?php

namespace CorpusParole\Http\Controllers\Api;

// use CorpusParole\Http\Requests;

use CorpusParole\Http\Controllers\Controller;

use Illuminate\Http\Request;

use EasyRdf\Resource;

use EasyRdf\Literal;

use CorpusParole\Libraries\Sparql\SparqlClient;

use CorpusParole\Services\LexvoResolverInterface;

use CorpusParole\Services\BnfResolverInterface;

class DiscourseController extends Controller

{

    private $sparqlClient = null;

    public function __construct(SparqlClient $sparqlClient) {

        $this->sparqlClient = $sparqlClient;

    }

    /**

     * Display the specified resource.

     *

     * @return \Illuminate\Http\Response

     */

    public function index(Request $request)

    {

        $query =  preg_replace('/\s+/', ' ', "SELECT (?o AS ?res) (COUNT(?s) AS ?count) WHERE {

            ?s a <http://www.europeana.eu/schemas/edm/ProvidedCHO>.

            ?s <http://purl.org/dc/elements/1.1/type> ?o.

            FILTER(uri(?o) in (<".implode('>,<', array_keys(config('corpusparole.corpus_discourse_type'))).">))

        }

        GROUP BY ?o

        ORDER BY DESC(?count)");

        $docs = $this->sparqlClient->query($query);

        $discourses = [];

        foreach ($docs as $row) {

            $key = $row->res->getUri();

            $count = $row->count->getValue();

            $label = config('corpusparole.corpus_discourse_type')[$key];

            $discourses[$key] = [

                "label" => $label,

                "count" => $count

            ];

        }

        return response()->json(['discourses' => $discourses ]);

    }

}