--- /dev/null
+# Generated by Django 4.1.9 on 2023-06-20 09:59
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("documents", "0008_book_legimi_id"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="book",
+            name="cover",
+            field=models.FileField(blank=True, upload_to=""),
+        ),
+    ]
 
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
 from django.apps import apps
+from django.core.files.base import ContentFile
 from django.contrib.sites.models import Site
 from django.db import connection, models, transaction
 from django.template.loader import render_to_string
 from django.utils.translation import gettext_lazy as _
 from django.conf import settings
 from slugify import slugify
-
+from librarian.cover import make_cover
+from librarian.dcparser import BookInfo
 
 import apiclient
 from documents.helpers import cached_in_field, GalleryMerger
 import shutil
 import re
 
+
 class Book(models.Model):
     """ A document edited on the wiki """
 
     dc_cover_image = models.ForeignKey(Image, blank=True, null=True,
         db_index=True, on_delete=models.SET_NULL, editable=False)
     dc = models.JSONField(null=True, editable=False)
+    cover = models.FileField(blank=True, upload_to='documents/cover')
     catalogue_book = models.ForeignKey(
         'catalogue.Book',
         models.DO_NOTHING,
         }
         Book.objects.filter(pk=self.pk).update(**update)
         self.refresh_dc_cache()
+        self.build_cover()
+
+    def build_cover(self):
+        width, height = 216, 300
+        try:
+            xml = self.materialize(publishable=True).encode('utf-8')
+            info = BookInfo.from_bytes(xml)
+            cover = make_cover(info, width=width, height=height)
+            out = BytesIO()
+            ext = cover.ext()
+            cover.save(out)
+            self.cover.save(f'{self.slug}.{ext}', out, save=False)
+            type(self).objects.filter(pk=self.pk).update(cover=self.cover)
+        except:
+            type(self).objects.filter(pk=self.pk).update(cover='')
 
     # Materializing & publishing
     # ==========================
 
         Pobierz okładkę:
         <div class="input-group">
           <select class="form-control" name='cover_class'>
-            <option value="default">tradycyjna</option>
-           <option value="m">nowa</option>
+           <option value="default">nowa</option>
            <option value="m-label">nowa + label</option>
+            <option value="legacy">dawna</option>
           </select><br>
           <input class="form-control" name="width" type="number" required value="600" size="3" placeholder="szer.">
           <input class="form-control" name="height" type="number" size="3" placeholder="wys.">