Add a route to get search summary

modules/restserver/src/main/scala/docspell/restserver/conv/Conversions.scala

@@ -27,6 +27,22 @@ import org.log4s.Logger
 
 trait Conversions {
 
+  def mkSearchStats(sum: OItemSearch.SearchSummary): SearchStats =
+    SearchStats(sum.count, mkTagCloud(sum.tags), sum.fields.map(mkFieldStats))
+
+  def mkFieldStats(fs: docspell.store.queries.FieldStats): FieldStats =
+    FieldStats(
+      fs.field.id,
+      fs.field.name,
+      fs.field.label,
+      fs.field.ftype,
+      fs.count,
+      fs.sum.doubleValue,
+      fs.avg.doubleValue,
+      fs.max.doubleValue,
+      fs.min.doubleValue
+    )
+
   // insights
   def mkItemInsights(d: InsightData): ItemInsights =
     ItemInsights(

modules/restserver/src/main/scala/docspell/restserver/routes/ItemRoutes.scala

@@ -143,6 +143,14 @@ object ItemRoutes {
           }
         } yield resp
 
+      case req @ POST -> Root / "searchStats" =>
+        for {
+          mask <- req.as[ItemSearch]
+          query = Conversions.mkQuery(mask, user.account)
+          stats <- backend.itemSearch.findItemsSummary(query)
+          resp  <- Ok(Conversions.mkSearchStats(stats))
+        } yield resp
+
       case GET -> Root / Ident(id) =>
         for {
           item <- backend.itemSearch.findItem(id, user.account.collective)