/**
 * build the custom kit
 */
function serviceskit_build_kit($array_of_form_names) {
    //define('FPDF_FONTPATH','sites/all/libraries/fpdf-i/font');
    require_once('sites/all/libraries/pdf-gen/fpdf1.7/fpdf.php');
  require_once('sites/all/libraries/pdf-gen/fpdi/fpdi.php');

    /* -----
     *  build the array's with
     *  file info and build
     *  the command string for the passthru
     * -----
     */

    // the forms that are being requested
  $forms = $array_of_form_names;
    $file_ids = array();
    $file_locations = array();

    foreach ($forms as $form) {
      // get the file id
        $file_ids[] = (int)str_replace('download-form-', '', $form);
    }
    $all_files = file_load_multiple($file_ids);
    //_dvd($all_files);
    $file_count = count($all_files);
    //var_dump($all_files);
    $command = '';
    if (!empty($all_files)) {
      // get started with pdf merge
        // likely can be removed, no longer using
        // passthru() due to linking issues
        foreach ($all_files as $file) {
            $url = file_create_url($file->uri);
            $command = $command. ' ' . $url;
        }
        //
    }

    /* -----
     *  make the table of contents
     * -----
     */
    $pdf = new FPDI('P','pt','A4');
    $pdf->AddPage();
    // in order to use fpdi we must pass a relative url
    // this conflicts with what Drupal gives us to return
    // the actual location of a public file, file_create_url(),
    // we must make the url into a relative path

    $url = _absolute_to_relative(file_create_url('public://service_kit/TOC.pdf'));
    $pdf->setSourceFile($url);
    $tplIdx = $pdf->importPage(1);
    //die($tplIdx);

    $pdf->useTemplate($tplIdx, 0, 0, 612, 792, TRUE);
    //_dvd($pdf->getTemplateSize($tplIdx));
    $pdf->SetFont('Arial');
  $pdf->SetTextColor(0,0,0);
    $pdf->SetFontSize('10');

    // arrange the toc
    // starting at
  $pdf->SetXY(12, 75);

    // General Services
    //$pdf->Cell(50,5,'Shipping & Drayage',0,1,'L');
    $genservice = serviceskit_get_forms_by_category(1);
    $genservice = _is_form_requested_and_or_available($genservice, serviceskit_get_forms_by_id($file_ids));

    $kecservice = serviceskit_get_forms_by_category(2);
    $kecservice = _is_form_requested_and_or_available($kecservice, serviceskit_get_forms_by_id($file_ids));

    $shipping = serviceskit_get_forms_by_category(3);
    $shipping = _is_form_requested_and_or_available($shipping, serviceskit_get_forms_by_id($file_ids));

    $rules = serviceskit_get_forms_by_category(4);
    $rules = _is_form_requested_and_or_available($rules, serviceskit_get_forms_by_id($file_ids));

    $other = serviceskit_get_forms_by_category(5);
    $other = _is_form_requested_and_or_available($other, serviceskit_get_forms_by_id($file_ids));

    $promotion = serviceskit_get_forms_by_category(6);
    $promotion = _is_form_requested_and_or_available($promotion, serviceskit_get_forms_by_id($file_ids));

    $addlinfo = serviceskit_get_forms_by_category(7);
    $addlinfo = _is_form_requested_and_or_available($addlinfo, serviceskit_get_forms_by_id($file_ids));

    $page_counter = 0;

    $full_kit = array($genservice, $kecservice, $shipping, $rules, $other, $promotion, $addlinfo);
    //_dvd($full_kit);
    $internal_page_counter = 2;
    // height increment
    $hi = 5;
    $width_tracker = 0;
    $addon_forms = array();
    foreach ($full_kit as $section) {
        $_helper = prev($section);
        // this gives section title if there are no forms
        $section_title = serviceskit_get_category_name_from_id($_helper->category_id);
        // section title if there are forms
        if (!$section_title) {
          $section_title = serviceskit_get_category_name_from_id($_helper->servicekit_form->category_id);
        }
        if ($_helper->category_id == 4) {
            //_dvd($section);
        }
        if ($_helper->category_id == 2) {
          $pdf->SetXY(85,75);
        }
        if ($_helper->category_id == 5) {
          $pdf->SetXY(155,75);
        }

        //$pdf->SetFontSize('11');
        $pdf->SetTextColor(0,0,0);
        $pdf->SetFont('Arial', '');
        $pdf->Cell(50, 7, strtoupper($section_title), 0, 2, 'L', false);
        $height_tracker = $height_tracker + $hi;
        $pdf->SetFontSize('10');
        foreach ($section as $form) {
            // first if requested
            if ($form->form_requested) {
                $pdf->SetTextColor(245,114,23); // orange
                $pdf->SetFont('Arial', 'U');
                if ($form->fid != 0) {

                    // these pdfs are going to be added
                    // onto our document.  We need to set a
                    // link also
                    $addon_forms[$form->fid]['url'] = _absolute_to_relative(file_create_url($form->uri));
                    $addon_link = $pdf->AddLink();
                    $addon_forms[$form->fid]['link'] = $addon_link;

                    $pdf->Cell(50, $hi, $form->servicekit_form->form_title, 0, 2, 'L', false, $addon_link);
                    $height_tracker = $height_tracker + $hi;
                    unset($addon_link);
                }
                else {
                  $link = $form->servicekit_form->form_url;
                    $pdf->Cell(50, $hi, $form->servicekit_form->form_title, 0, 2, 'L', false, $link);
                    $height_tracker = $height_tracker + $hi;
                }


                continue;
            }
            // next if available
            if (!($form->form_requested) && $form->form_available) {
                $pdf->SetTextColor(51,51,102); // purple
                $pdf->SetFont('Arial', 'U');
              if ($form->fid != 0) {
                $link = file_create_url($form->uri);
                    $pdf->Cell(50, $hi, $form->servicekit_form->form_title, 0, 2, 'L', false, $link);
                    $height_tracker = $height_tracker + $hi;
                }
                else {
                  $link = $form->servicekit_form->form_url;
                    $pdf->Cell(50, $hi, $form->servicekit_form->form_title, 0, 2, 'L', false, $link);
                    $height_tracker = $height_tracker + $hi;
                }

                continue;
            }
            // form is not available
            else {
                $pdf->SetFont('Arial', '');
                $pdf->SetTextColor(204,51,51); // red
                $pdf->Cell(50, $hi, $form->form_title, 0, 2, 'L');
                $height_tracker = $height_tracker + $hi;
            }

        }
    }
    //_dvd($addon_forms);
    // here we need to add more pages
    if (!empty($addon_forms)) {
        foreach ($addon_forms as $af) {
          $pdf->AddPage();
          $pdf->SetLink($af['link']);
          $url = $af['url'];
            //die($url);
          $pagecount = $pdf->setSourceFile($url);
          $newIdx = $pdf->importPage(1);
          $pdf->useTemplate($newIdx, 0, 0, 0, 0, TRUE);
          if ($pagecount > 1) {
            for ($i = 2; $i <= $pagecount; $i++) {
                $pdf->AddPage();
                  $thiscount = $pdf->setSourceFile($url);
                  $thisIdx = $pdf->importPage($i);
                  $pdf->useTemplate($thisIdx, 0, 0, 0, 0, TRUE);
                  unset($thiscount, $thisIdx);
              }
          }
        }
    }


    //$pdf->Cell(50,5,'Shipping & Drayage',0,1,'L');
    // save the file
    $random_string = user_password(10);
    $file_save_as = 'sites/default/files/img/service_kit/customkit' . $random_string . '.pdf';
    // save the file locally and move on for testing purposes
    $pdf->Output($file_save_as, 'F');
    /* -----
     *  merge the pdfs
     *  adding in the table of contents
     *  to the front
     * -----
     */
    $old_command = $command;
    $command = $base_url . '/' . $file_save_as . ' ' . $old_command;

    $output = 'sites/default/files/img/service_kit/' . $random_string . 'merged-pdf.pdf';
    $command = "pdftk $command output $output";
    passthru($command); //run the command
  header(sprintf('Location: %s', $output)); //open the merged pdf file in the browser
    die('Want to stay in processing');
}