<?php

namespace ps_metrics_module_v4_0_9;

class Segment_Consumer_Socket extends Segment_QueueConsumer
{
    protected $type = "Socket";
    private $socket_failed;
    /**
     * Creates a new socket consumer for dispatching async requests immediately
     * @param string $secret
     * @param array  $options
     *     number   "timeout" - the timeout for connecting
     *     function "error_handler" - function called back on errors.
     *     boolean  "debug" - whether to use debug output, wait for response.
     */
    public function __construct($secret, $options = array())
    {
        if (!isset($options["timeout"])) {
            $options["timeout"] = 0.5;
        }
        if (!isset($options["host"])) {
            $options["host"] = "api.segment.io";
        }
        parent::__construct($secret, $options);
    }
    public function flushBatch($batch)
    {
        $socket = $this->createSocket();
        if (!$socket) {
            return;
        }
        $payload = array("batch" => $batch);
        $payload = \json_encode($payload);
        $body = $this->createBody($this->options["host"], $payload);
        return $this->makeRequest($socket, $body);
    }
    private function createSocket()
    {
        if ($this->socket_failed) {
            return \false;
        }
        $protocol = $this->ssl() ? "ssl" : "tcp";
        $host = $this->options["host"];
        $port = $this->ssl() ? 443 : 80;
        $timeout = $this->options["timeout"];
        try {
            # Open our socket to the API Server.
            $socket = \pfsockopen($protocol . "://" . $host, $port, $errno, $errstr, $timeout);
            # If we couldn't open the socket, handle the error.
            if ($errno != 0) {
                $this->handleError($errno, $errstr);
                $this->socket_failed = \true;
                return \false;
            }
            return $socket;
        } catch (\Exception $e) {
            $this->handleError($e->getCode(), $e->getMessage());
            $this->socket_failed = \true;
            return \false;
        }
    }
    /**
     * Attempt to write the request to the socket, wait for response if debug
     * mode is enabled.
     * @param  stream  $socket the handle for the socket
     * @param  string  $req    request body
     * @return boolean $success
     */
    private function makeRequest($socket, $req, $retry = \true)
    {
        $bytes_written = 0;
        $bytes_total = \strlen($req);
        $closed = \false;
        # Write the request
        while (!$closed && $bytes_written < $bytes_total) {
            try {
                $written = \fwrite($socket, \substr($req, $bytes_written));
            } catch (\Exception $e) {
                $this->handleError($e->getCode(), $e->getMessage());
                $closed = \true;
            }
            if (!isset($written) || !$written) {
                $closed = \true;
            } else {
                $bytes_written += $written;
            }
        }
        # If the socket has been closed, attempt to retry a single time.
        if ($closed) {
            \fclose($socket);
            if ($retry) {
                $socket = $this->createSocket();
                if ($socket) {
                    return $this->makeRequest($socket, $req, \false);
                }
            }
            return \false;
        }
        $success = \true;
        if ($this->debug()) {
            $res = $this->parseResponse(\fread($socket, 2048));
            if ($res["status"] != "200") {
                $this->handleError($res["status"], $res["message"]);
                $success = \false;
            }
        }
        return $success;
    }
    /**
     * Create the body to send as the post request.
     * @param  string $host
     * @param  string $content
     * @return string body
     */
    private function createBody($host, $content)
    {
        $req = "";
        $req .= "POST /v1/import HTTP/1.1\r\n";
        $req .= "Host: " . $host . "\r\n";
        $req .= "Content-Type: application/json\r\n";
        $req .= "Authorization: Basic " . \base64_encode($this->secret . ":") . "\r\n";
        $req .= "Accept: application/json\r\n";
        $req .= "Content-length: " . \strlen($content) . "\r\n";
        $req .= "\r\n";
        $req .= $content;
        return $req;
    }
    /**
     * Parse our response from the server, check header and body.
     * @param  string $res
     * @return array
     *     string $status  HTTP code, e.g. "200"
     *     string $message JSON response from the api
     */
    private function parseResponse($res)
    {
        $contents = \explode("\n", $res);
        # Response comes back as HTTP/1.1 200 OK
        # Final line contains HTTP response.
        $status = \explode(" ", $contents[0], 3);
        $result = $contents[\count($contents) - 1];
        return array("status" => isset($status[1]) ? $status[1] : null, "message" => $result);
    }
}