show upload date next to filesize in slideshow

templates/slideshow.html

@@ -164,6 +164,7 @@
         const tags_list     = {{ tags_list|tojson }};
         const file_sizes    = {{ file_sizes|tojson }};
         const preview_sizes = {{ preview_sizes|tojson }};
+        const created_ats   = {{ created_ats|tojson }};
 
         let use_full = false;
 
@@ -171,6 +172,8 @@
         function cur_size(n) { return use_full ? file_sizes[n]   : preview_sizes[n]; }
 
         function fmt_size(b){ return b >= 1048576 ? (b/1048576).toFixed(1)+' MB' : Math.round(b/1024)+' KB'; }
+        function fmt_date(ts){ if (!ts) return ''; const d = new Date(ts*1000); return d.getFullYear()+'-'+String(d.getMonth()+1).padStart(2,'0')+'-'+String(d.getDate()).padStart(2,'0'); }
+        function fmt_label(n){ const d = fmt_date(created_ats[n]); return fmt_size(cur_size(n)) + (d ? '  ·  '+d : ''); }
         const sidebar   = document.getElementById('tag-sidebar');
 
         const current_query = {{ tag_query|tojson }};
@@ -286,7 +289,7 @@
             i = n;
             img.src = cur_src(n);
             counter.textContent = `${i+1} / ${images.length}`;
-            file_size_el.textContent = fmt_size(cur_size(n));
+            file_size_el.textContent = fmt_label(n);
             render_tags(n);
             reset_zoom();
             preload_next();