<?php

namespace app\Middleware;

use app\Core\CoreMedia;
use app\Middleware\Http;
use app\Middleware\ApiAgente;
use app\Providers\Positus;
use app\Providers\WebHeader;
use app\Providers\Whatsapp;

/**
 * Description of WppController
 *
 * @author Lucas Awade
 */
class Middleware extends Http
{

    /** @var array request */
    private $request;

    /** @class WebHeader */
    private $header;

    /** @var String local downloads image|document|video|sticker|audio */
    private $link;

    public function __construct($config = null)
    {
        $this->link = $config['LINK_UPLOAD'];
        $this->header = new WebHeader($config);
        $this->api();
        $this->hook();
    }

    /**
     * Start API headers
     * @param array $config
     */
    public function api($contentType = "application/json; charset=UTF-8")
    {
        $this->header->API($contentType);
    }

    /**
     * Redirect request to media Social
     * @return null
     */
    private function router()
    {
        $coremedia = new CoreMedia();
        $this->baseUri();
        switch (strtolower($this->param()[1])) {
            case 'whatsapp':
                $provedor = returnChannel('whatsapp');
                $coremedia->inicia($this->request, $provedor);
                $this->api($provedor->getContentType());
                echo '';
                return null;
            case 'api':
                $this->api();
                switch ($this->param()[2]) {
                    case 'agente':
                        $apiAgente = new ApiAgente();
                        $apiAgente->router($this->param()[3], $this->request);
                        return null;
                    case 'supervisor':
                        $apiSupervisor = new ApiSupervisor();
                        $apiSupervisor->router($this->param()[3], $this->request);
                        return null;
                    default:
                        echo 'erro';
                }
            case 'link':
                $this->api();
                $this->header->fileTransfer($this->param()[2], CONF_PATH_FILES . $this->param()[2], base64_decode($this->param()[3]));
                exit(0);
            case 'info':
                $this->api();
                $apiInfo = new ApiInfo();
                $apiInfo->router($this->param()[3], $this->request);
                exit(0);
            default:
                $this->header->redirect();
                exit(0);
        }
    }

    /**
     * Read input requests 
     */
    private function hook()
    {
        $this->request = file_get_contents('php://input');
        $this->router();
    }

    /**
     * Create file and download in browser
     */
    private function download($file = null)
    {
        if ($file) {
            $this->header->fileTransfer($this->param()[3], $file, base64_decode($this->param()[4]));
            exit(0);
        }

        if ($this->param()[3] && $this->param()[4]) {
            return ["FILE" => strtolower($this->param()[3]), "MIMETYPE" => $this->param()[4]];
        } else {
            return null;
        }
    }

    ########################################################################
    #####                         FUNCTION UTIL                        #####
    ########################################################################

    private function formatLink()
    {
        $link = str_split($this->link);
        if (strpos($this->link, 'http://') === false && strpos($this->link, 'http://') === false) {
            $this->link = "http://" . $this->link;
        }

        if (end($link) != "/") {
            $this->link .= "/";
        }
    }

    ########################################################################
    #####                         FUNCTION CLASS                       #####
    ########################################################################

    /**
     * Set new link download
     * @param string $link
     */
    public function setLink($link)
    {
        $this->link = $link;
        $this->formatLink();
    }

    /**
     * Get link download
     * @return string
     */
    public function getLink()
    {
        $this->formatLink();
        return $this->link;
    }
}