<?php
defined('BASEPATH') or exit('No direct script access allowed');
date_default_timezone_set('UTC');

use GuzzleHttp\Client;
use GuzzleHttp\Exception\GuzzleException;
use LZCompressor\LZString;

class Bpjs extends CI_Controller
{
    /**
     * @var string
     */
    protected $baseUrl;

    /**
     * @var int
     */
    protected $consumerId;

    /**
     * @var string
     */
    protected $consumerSecret;

    /**
     * @var string
     */
    protected $userKey;

    /**
     * Class constructor
     */
    public function __construct()
    {
        parent::__construct();

        $this->baseUrl = 'https://apijkn-dev.bpjs-kesehatan.go.id/';
        $this->consumerId = 3972;
        $this->consumerSecret = '2wJ5630AAA';
        $this->userKey = 'a931e9e40ac3d692fbdc5bb608ff5707';

        $this->load->database();
    }

    /**
     * @return void
     * @throws GuzzleException
     */
    public function getData()
    {
        $currentTimestamp = strval(time() - strtotime('1970-01-01 00:00:00'));

        $signatureData = "{$this->consumerId}&{$currentTimestamp}";

        $signature = hash_hmac('sha256', $signatureData, $this->consumerSecret, true);
        $signature = base64_encode($signature);

        $headers = [
            'X-cons-id' => $this->consumerId,
            'X-Timestamp' => $currentTimestamp,
            'X-Signature' => $signature,
            'user_key' => $this->userKey,

        ];

        $client = new Client([
            'base_uri' => $this->baseUrl,
            'timeout' => 10,
        ]);

        try {
            $response = $client->get('antreanrs_dev/ref/poli', [
                'headers' => $headers,
            ]);

            if ($response->getStatusCode() == 200) {
                $responseBody = $response->getBody();
                $content = $responseBody->getContents();

                $data = json_decode($content);
                $response = $data->response;

                $key = "{$this->consumerId}{$this->consumerSecret}{$currentTimestamp}";
                $dataHasilAPI = $this->decode($response, $key);

                return $dataHasilAPI;
            }
            else {
                // error lain
            }
        }
        catch (GuzzleException $e) {
            $responseData = $e->getResponse()->getBody()->getContents();
            $responseCode = $e->getResponse()->getStatusCode();

            if ($responseCode == 403) {
                echo 'User key atau detail akses lain salah.<br>';
                echo 'Balasan server: ' . $responseData;
            }
            else {
                echo $responseBody;
            }
        }
    }

    public function index()
    {
        $data = $this->getData();

        $this->load->view('data', [
            'data' => $data,
        ]);
    }

    public function simpan()
    {
        $data = $this->getData();

        foreach ($data as $item) {
            $this->db->insert('namatabelnya', [
                'nmpoli' => $item->nmpoli,
                'kdsubspesialis' => $item->kdsubspesialis,
                'kdpoli' => $item->kdpoli,
            ]);
        }

        redirect('bpjs');
    }

    protected function decode($string, $key)
    {
        $encryptMethod = 'AES-256-CBC';
        $keyHash = hex2bin(hash('sha256', $key));

        $iv = substr(hex2bin(hash('sha256', $key)), 0, 16);

        $output = openssl_decrypt(base64_decode($string), $encryptMethod, $keyHash, OPENSSL_RAW_DATA, $iv);

        return json_decode(LZString::decompressFromEncodedURIComponent($output));
    }
}