<?php

return [
  'pattern' => 'upload-images.json',
  'method' => 'POST',
  'action' => function () {
    
    $kirby = kirby();
    $request = $kirby->request();

    $files = $request->files();
    $data = $request->data();
    
    $pageUri = $request->query()->get('pageUri');
    $page = page($pageUri);    
    
    if ($uploads = $request->files()) {
      
      $existingFiles = $page->files();
      $allFiles = $page->clientBriefImages()->toFiles()->pluck('uuid', ',');      
      
      $existingFileMap = [];
      foreach ($existingFiles as $file) {
        $pos              = strpos($file->filename(), '_');
        $originalSafename = substr($file->filename(), $pos + 1);
        $existingFileMap[$originalSafename . '|' . $file->mime() . '|' . $file->size()] = $file->uuid();
      }
      
      $alerts  = [];
      $newFiles = []; 

      foreach ($uploads->get('images') as $upload) {
        $key = F::safeName($upload['name']) . '|' . $upload['type'] . '|' . $upload['size'];
        
        if (isset($existingFileMap[$key])) {
          $duplicateUUID = $existingFileMap[$key];
          if (!in_array($duplicateUUID, $allFiles)) {
            $allFiles[] = $duplicateUUID;
            $alerts[$upload['name']] = "The file already exists, added to the field.";
          }
        } else {
          try {
            $name = crc32($upload['name'] . microtime()) . '_' . $upload['name'];
            $newFile = $page->createFile([
              'source'   => $upload['tmp_name'],
              'filename' => $name,
              'template' => 'image',
              'content' => [
                  'date' => date('Y-m-d H:i:s') 
              ]
            ]);

            $newFiles[] = $newFile;

            $success = 'Your file upload was successful';

            $allFiles[] = (string) $newFile->uuid();
          } catch (Exception $e) {
            $alerts[$upload['name']] = $e->getMessage();
          }
        }
      }

      $newPage = $page->update([
        'clientBriefImages' => $allFiles
      ]);

      $images = [];

      foreach ($newPage->clientBriefImages()->toFiles() as $image) {
        $images[] = [
          'url' => $image->url(),
          'uuid' => (string) $image->uuid(),
          'tags' => $image->tags()->split(),
          'name' => $image->filename(),
          'description' => $image->description()->value(),
        ];
      }
      
      return compact('images', 'alerts');
    }

    return [
      'error' => 'Aucun fichier reçu.',
    ];
  }
];