feat: add CSV export button in panel for contact database

- Plugin csv-export: authenticated route /wg-export/contacts generates
  CSV with UTF-8 BOM, semicolon separator, white-paper titles resolved
- Panel section with k-button wired to the route, index.css for spacing
- white-papers.yml dataTab converted to sections to host the custom section
- Filename format: YYMMDD-contacts.csv

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

site/blueprints/pages/white-papers.yml

@@ -48,62 +48,68 @@ tabs:
   dataTab:
     label: Contacts
     icon: chart
-    fields:
-      contactDatabase:
-        label: Ont téléchargé un livre blanc
-        type: structure
-        translate: false
-        columns:
-          firstName:
-            label: Prénom
-            width: 1/4
-          lastName:
-            label: Nom
-            width: 1/4
-          email:
-            label: Email
-            width: 1/4
-          company:
-            label: Entreprise
-            width: 1/4
-          role:
-            label: Fonction
-          whitePaper:
-            label: Livres blancs
-          downloadedAt:
-            label: Date
+    sections:
+      export:
+        type: csv-export
+      contacts:
+        type: fields
         fields:
-          firstName:
-            label: Prénom
-            type: text
+          contactDatabase:
+            label: Ont téléchargé un livre blanc
+            type: structure
             translate: false
-            required: true
-          lastName:
-            label: Nom
-            type: text
-            translate: false
-            required: true
-          company:
-            label: Société
-            type: text
-            translate: false
-          role:
-            label: Fonction
-            type: text
-            translate: false
-          email:
-            type: email
-            translate: false
-            required: true
-          whitePaper:
-            label: Livres blancs
-            type: pages
-            translate: false
-            query: site.find('livres-blancs').children
-          downloadedAt:
-            type: text
-            translate: false
-            label: Date
+            columns:
+              firstName:
+                label: Prénom
+                width: 1/5
+              lastName:
+                label: Nom
+                width: 1/5
+              email:
+                label: Email
+                width: 1/5
+              company:
+                label: Entreprise
+                width: 1/5
+              role:
+                label: Fonction
+                width: 1/5
+              whitePaper:
+                label: Livres blancs
+              downloadedAt:
+                label: Date
+            fields:
+              firstName:
+                label: Prénom
+                type: text
+                translate: false
+                required: true
+              lastName:
+                label: Nom
+                type: text
+                translate: false
+                required: true
+              company:
+                label: Société
+                type: text
+                translate: false
+              role:
+                label: Fonction
+                type: text
+                translate: false
+              email:
+                type: email
+                translate: false
+                required: true
+              whitePaper:
+                label: Livres blancs
+                type: pages
+                translate: false
+                query: site.find('livres-blancs').children
+              downloadedAt:
+                type: text
+                translate: false
+                label: Date
 
   files: tabs/files
   seo: seo/page

site/plugins/csv-export/index.css

@@ -0,0 +1,3 @@
+.csv-export-btn {
+  margin-bottom: 2rem;
+}

site/plugins/csv-export/index.js

@@ -0,0 +1,17 @@
+panel.plugin("world-game/csv-export", {
+  sections: {
+    "csv-export": {
+      template: `
+        <k-button
+          icon="download"
+          text="Exporter en CSV"
+          variant="filled"
+          theme="positive"
+          link="/wg-export/contacts"
+          target="_blank"
+          class="csv-export-btn"
+        />
+      `,
+    },
+  },
+});

site/plugins/csv-export/index.php

@@ -0,0 +1,50 @@
+<?php
+
+Kirby::plugin('world-game/csv-export', [
+    'sections' => [
+        'csv-export' => [],
+    ],
+
+    'routes' => [
+        [
+            'pattern' => 'wg-export/contacts',
+            'method'  => 'GET',
+            'action'  => function () {
+                if (!kirby()->user()) {
+                    http_response_code(403);
+                    exit;
+                }
+
+                $entries = page('livres-blancs')->contactDatabase()->toStructure();
+
+                header('Content-Type: text/csv; charset=UTF-8');
+                header('Content-Disposition: attachment; filename="' . date('ymd') . '-contacts.csv"');
+                header('Cache-Control: no-cache');
+
+                $out = fopen('php://output', 'w');
+                fputs($out, "\xEF\xBB\xBF"); // BOM pour Excel
+                fputcsv($out, ['Prénom', 'Nom', 'Email', 'Entreprise', 'Fonction', 'Livres blancs', 'Date'], ';');
+
+                foreach ($entries as $entry) {
+                    $titles = [];
+                    foreach ($entry->whitePaper()->toPages() as $wp) {
+                        $titles[] = $wp->title()->value();
+                    }
+
+                    fputcsv($out, [
+                        $entry->firstName()->value(),
+                        $entry->lastName()->value(),
+                        $entry->email()->value(),
+                        $entry->company()->value(),
+                        $entry->role()->value(),
+                        implode(' | ', $titles),
+                        $entry->downloadedAt()->value(),
+                    ], ';');
+                }
+
+                fclose($out);
+                exit;
+            },
+        ],
+    ],
+]);