Merge seeded platform links on container upgrades

entrypoint.sh

@@ -23,4 +23,83 @@ if [ -d "$SEED_DIR" ]; then
   done
 fi
 
+# Merge newly added seeded platform links into existing admin content on upgrades
+# without overwriting user-edited values already present in the live volume.
+merge_seed_platform_links() {
+  target_file="$1"
+  seed_file="$2"
+
+  [ -f "$target_file" ] || return 0
+  [ -f "$seed_file" ] || return 0
+
+  node - "$target_file" "$seed_file" <<'NODE'
+const fs = require('fs')
+
+const [targetFile, seedFile] = process.argv.slice(2)
+
+function readJson(file) {
+  return JSON.parse(fs.readFileSync(file, 'utf8'))
+}
+
+function normalizeLinks(value) {
+  return Array.isArray(value) ? value.filter(item => item && typeof item === 'object') : []
+}
+
+const target = readJson(targetFile)
+const seed = readJson(seedFile)
+
+if (!target.siteContent || !seed.siteContent) process.exit(0)
+
+const targetLinks = normalizeLinks(target.siteContent.customLinks)
+const seedLinks = normalizeLinks(seed.siteContent.customLinks)
+
+let changed = false
+
+for (const seedLink of seedLinks) {
+  if (seedLink.placement !== 'platforms' || !seedLink.id || !seedLink.label || !seedLink.url) continue
+
+  const existingIndex = targetLinks.findIndex(link => link.id === seedLink.id)
+  if (existingIndex === -1) {
+    targetLinks.push(seedLink)
+    changed = true
+    continue
+  }
+
+  const existing = targetLinks[existingIndex]
+  const merged = { ...existing }
+
+  if (!merged.imageUrl && seedLink.imageUrl) {
+    merged.imageUrl = seedLink.imageUrl
+    changed = true
+  }
+
+  if (!merged.placement && seedLink.placement) {
+    merged.placement = seedLink.placement
+    changed = true
+  }
+
+  if (!merged.label && seedLink.label) {
+    merged.label = seedLink.label
+    changed = true
+  }
+
+  if (!merged.url && seedLink.url) {
+    merged.url = seedLink.url
+    changed = true
+  }
+
+  targetLinks[existingIndex] = merged
+}
+
+if (!changed) process.exit(0)
+
+target.siteContent.customLinks = targetLinks
+fs.writeFileSync(targetFile, `${JSON.stringify(target, null, 2)}\n`)
+console.log(`[siteforge] Merged seeded platform links into ${targetFile}`)
+NODE
+}
+
+merge_seed_platform_links "$DATA_DIR/admin-content.json" "$SEED_DIR/admin-content.json"
+merge_seed_platform_links "$DATA_DIR/admin-content-draft.json" "$SEED_DIR/admin-content-draft.json"
+
 exec node server.js