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<?php

namespace SAREhub\Commons\Misc;

/**
 * Helper builder for DSN string format: <transport>://endpoint
 */
class Dsn
{

    /** @var string */
    private $transport;

    /** @var string */
    private $endpoint;

    /**
     * Sets INPROC transport type
     * @return Dsn
     */
    public static function inproc()
    {
        return (new self())->transport('inproc');
    }

    /**
     * Sets IPC transport type
     * @return Dsn
     */
    public static function ipc()
    {
        return (new self())->transport('ipc');
    }

    /**
     * Sets TCP transport type
     * @return Dsn
     */
    public static function tcp()
    {
        return (new self())->transport('tcp');
    }

    /**
     * Sets custom transport type
     * @param $type
     * @return $this
     */
    public function transport($type)
    {
        $this->transport = $type;
        return $this;
    }

    /**
     * @return string
     */
    public function getTransport()
    {
        return $this->transport;
    }

    /**
     * Sets address for dsn
     * @param string $endpoint
     * @return $this
     */
    public function endpoint($endpoint)
    {
        $this->endpoint = $endpoint;
        return $this;
    }

    /**
     * @return string
     */
    public function getEndpoint()
    {
        return $this->endpoint;
    }

    /**
     * Returns string in DSN format <transport>://endpoint
     * @return string
     */
    public function __toString()
    {
        return $this->transport . '://' . $this->endpoint;
    }
}