Extraire les partiels de calcul du thème 2026

layouts/partials/dossier-first-page.html

@@ -0,0 +1,31 @@
+{{- $page := . -}}
+{{- $firstPage := false -}}
+
+{{- with $page.Params.dossier -}}
+  {{- $dossierID := index . 0 -}}
+  {{- if $dossierID -}}
+    {{- $group := where site.RegularPages "Params.dossier" "intersect" (slice $dossierID) -}}
+    {{- if gt (len $group) 0 -}}
+      {{- $weighted := slice -}}
+      {{- range $group -}}
+        {{- if isset .Params "weight" -}}
+          {{- $weighted = $weighted | append . -}}
+        {{- end -}}
+      {{- end -}}
+
+      {{- $candidates := $group -}}
+      {{- if gt (len $weighted) 0 -}}
+        {{- $sortedByWeight := sort $weighted "Weight" "asc" -}}
+        {{- $minWeight := (index $sortedByWeight 0).Weight -}}
+        {{- $candidates = where $sortedByWeight "Weight" $minWeight -}}
+      {{- end -}}
+
+      {{- $sortedByDate := sort $candidates "Date" "asc" -}}
+      {{- $firstDate := (index $sortedByDate 0).Date -}}
+      {{- $sameDate := where $sortedByDate "Date" $firstDate -}}
+      {{- $firstPage = index (sort $sameDate "RelPermalink" "asc") 0 -}}
+    {{- end -}}
+  {{- end -}}
+{{- end -}}
+
+{{- return $firstPage -}}