<?php

namespace PrestaShop\Module\PsEventbus\Api\Post;

use Psr\Http\Message\StreamInterface;
/**
 * Post file upload
 */
class PostFileApi implements \PrestaShop\Module\PsEventbus\Api\Post\PostFileInterface
{
    /** @var string */
    private $name;
    /** @var string|null */
    private $filename;
    /** @var StreamInterface|MultipartBody|mixed */
    private $content;
    /** @var array */
    private $headers = [];
    /**
     * @param string $name Name of the form field
     * @param StreamInterface|MultipartBody|string $content Data to send
     * @param string|null $filename Filename content-disposition attribute
     * @param array $headers Array of headers to set on the file (can override any default headers)
     *
     * @@throws \RuntimeException when filename is not passed or can't be determined
     */
    public function __construct($name, $content, $filename = null, array $headers = [])
    {
        $this->headers = $headers;
        $this->name = $name;
        $this->prepareContent($content);
        $this->prepareFilename($filename);
        $this->prepareDefaultHeaders();
    }
    public function getName()
    {
        return $this->name;
    }
    /**
     * @return string|null
     */
    public function getFilename()
    {
        return $this->filename;
    }
    public function getContent()
    {
        return $this->content;
    }
    public function getHeaders()
    {
        return $this->headers;
    }
    /**
     * Prepares the contents of a POST file.
     *
     * @param StreamInterface|MultipartBody|string $content Content of the POST file
     *
     * @return void
     */
    private function prepareContent($content)
    {
        $this->content = $content;
        if (!$this->content instanceof StreamInterface) {
            $this->content = \PrestaShop\Module\PsEventbus\Api\Post\Stream::factory($this->content);
        } elseif ($this->content instanceof \PrestaShop\Module\PsEventbus\Api\Post\MultipartBody) {
            if (!$this->hasHeader('Content-Disposition')) {
                $disposition = 'form-data; name="' . $this->name . '"';
                $this->headers['Content-Disposition'] = $disposition;
            }
            if (!$this->hasHeader('Content-Type')) {
                $this->headers['Content-Type'] = \sprintf('multipart/form-data; boundary=%s', $this->content->getBoundary());
            }
        }
    }
    /**
     * Applies a file name to the POST file based on various checks.
     *
     * @param string|null $filename Filename to apply (or null to guess)
     *
     * @return void
     */
    private function prepareFilename($filename)
    {
        $this->filename = $filename;
        if (!$this->filename) {
            $this->filename = $this->content->getMetadata('uri');
        }
        if (!$this->filename || \substr($this->filename, 0, 6) === 'php://') {
            $this->filename = $this->name;
        }
    }
    /**
     * Applies default Content-Disposition and Content-Type headers if needed.
     *
     * @return void
     */
    private function prepareDefaultHeaders()
    {
        // Set a default content-disposition header if one was no provided
        if (!$this->hasHeader('Content-Disposition')) {
            $this->headers['Content-Disposition'] = \sprintf('form-data; name="%s"; filename="%s"', $this->name, \basename(\is_null($this->filename) ? '' : $this->filename));
        }
        // Set a default Content-Type if one was not supplied
        if (!$this->hasHeader('Content-Type')) {
            $this->headers['Content-Type'] = 'text/plain';
        }
    }
    /**
     * Check if a specific header exists on the POST file by name.
     *
     * @param string $name Case-insensitive header to check
     *
     * @return bool
     */
    private function hasHeader($name)
    {
        return isset(\array_change_key_case($this->headers)[\strtolower($name)]);
    }
}