<?php

/**
 * ZohoCrm Files Api
 *
 */

namespace BitCode\BitForm\Core\Integration\ZohoCRM;

use BitCode\BitForm\Core\Util\ApiResponse as UtilApiResponse;
use BitCode\BitForm\Core\Util\FileHandler;
use BitCode\BitForm\Core\Util\HttpHelper;

/**
 * Provide functionality for Upload files
 */
final class FilesApiHelper
{
  private $_defaultHeader;
  private $_apiDomain;
  private $_payloadBoundary;
  private $_basepath;

  private $_integId;

  private $_logID;

  private $_logResponse;

  private $_formId;

  private $_entryId;

  /**
   *
   * @param object  $tokenDetails Api token details
   * @param integer $formID       ID of the form, for which integration is executing
   * @param integer $entryID      Current submission ID
   */
  public function __construct($tokenDetails, $formID, $entryID, $integId, $logID)
  {
    $this->_integId = $integId;
    $this->_logID = $logID;
    $this->_logResponse = new UtilApiResponse();
    $this->_payloadBoundary = wp_generate_password(24);
    $this->_defaultHeader['Authorization'] = "Zoho-oauthtoken {$tokenDetails->access_token}";
    $this->_defaultHeader['content-type'] = 'multipart/form; boundary=' . $this->_payloadBoundary;
    $this->_apiDomain = \urldecode($tokenDetails->api_domain);
    $this->_basepath = FileHandler::getEntriesFileUploadDir($formID, $entryID) . DIRECTORY_SEPARATOR;

    $this->_formId = $formID;
    $this->_entryId = $entryID;
  }

  /**
   * Helps to execute upload files api
   *
   * @param mixed $files        Files path
   * @param bool  $isAttachment Check upload type
   * @param mixed $module       Attachment Module name
   * @param mixed | boolean $recordID     Record id
   *
   * @return mixed $uploadedFiles ID's of uploaded file in Zoho CRM
   */
  public function uploadFiles($files, $isAttachment = false, $module = '', $recordID = 0)
  {
    $entryDetails = [
      'formId'      => $this->_formId,
      'entryId'     => $this->_entryId,
    ];
    $uploadFileEndpoint = $isAttachment ?
        "{$this->_apiDomain}/crm/v2/{$module}/{$recordID}/Attachments"
        : "{$this->_apiDomain}/crm/v2/files";
    $payload = '';
    if (is_array($files)) {
      foreach ($files as $fileIndex => $fileName) {
        if (file_exists("{$this->_basepath}{$fileName}")) {
          $payload .= '--' . $this->_payloadBoundary;
          $payload .= "\r\n";
          $payload .= 'Content-Disposition: form-data; name="' . 'file' .
              '"; filename="' . basename("{$this->_basepath}{$fileName}") . '"' . "\r\n";
          $payload .= "\r\n";
          $payload .= file_get_contents("{$this->_basepath}{$fileName}");
          $payload .= "\r\n";
        }
      }
    } elseif (file_exists("{$this->_basepath}{$files}")) {
      $payload .= '--' . $this->_payloadBoundary;
      $payload .= "\r\n";
      $payload .= 'Content-Disposition: form-data; name="' . 'file' .
          '"; filename="' . basename("{$this->_basepath}{$files}") . '"' . "\r\n";
      $payload .= "\r\n";
      $payload .= file_get_contents("{$this->_basepath}{$files}");
      $payload .= "\r\n";
    }
    if (empty($payload)) {
      return false;
    }
    $payload .= '--' . $this->_payloadBoundary . '--';
    $uploadResponse = HttpHelper::post($uploadFileEndpoint, $payload, $this->_defaultHeader);
    if (!$isAttachment) {
      $uploadedFiles = [];
      if (!empty($uploadResponse->data) && \is_array($uploadResponse->data)) {
        foreach ($uploadResponse->data as $singleFileResponse) {
          if (!empty($singleFileResponse->code) && 'SUCCESS' === $singleFileResponse->code) {
            $uploadedFiles[] = $singleFileResponse->details->id;
          }
        }
      }
      if (isset($uploadResponse->status) && 'error' === $uploadResponse->status) {
        $this->_logResponse->apiResponse($this->_logID, $this->_integId, ['type' => 'upload', 'type_name' => 'file'], 'error', $uploadResponse, $entryDetails);
      } else {
        $this->_logResponse->apiResponse($this->_logID, $this->_integId, ['type' => 'upload', 'type_name' => 'file'], 'success', $uploadResponse, $entryDetails);
      }
      return $uploadedFiles;
    }
    return $uploadResponse;
  }
}