Implemented ListResponse in spray json format

1 files changed, 39 insertions, 0 deletions

diff --git a/src/main/scala/xyz/driver/pdsuidomain/formats/json/sprayformats/ListResponse.scala b/src/main/scala/xyz/driver/pdsuidomain/formats/json/sprayformats/ListResponse.scala
new file mode 100644
index 0000000..e8778cf
--- /dev/null
+++ b/src/main/scala/xyz/driver/pdsuidomain/formats/json/sprayformats/ListResponse.scala
@@ -0,0 +1,39 @@
+package xyz.driver.pdsuidomain.formats.json.sprayformats
+
+import java.time.LocalDateTime
+
+import spray.json.{JsArray, RootJsonFormat, _}
+import xyz.driver.pdsuicommon.db.Pagination
+import xyz.driver.pdsuidomain.formats.json.sprayformats.common._
+
+final case class ListResponse[+T](items: Seq[T], meta: ListResponse.Meta)
+
+object ListResponse extends DefaultJsonProtocol {
+  private val itemsField = "items"
+  private val metaField  = "meta"
+
+  final case class Meta(itemsCount: Int, pageNumber: Int, pageSize: Int, lastUpdate: Option[LocalDateTime])
+
+  object Meta {
+    def apply(itemsCount: Int, pagination: Pagination, lastUpdate: Option[LocalDateTime]): Meta = {
+      Meta(
+        itemsCount,
+        pagination.pageNumber,
+        pagination.pageSize,
+        lastUpdate
+      )
+    }
+  }
+
+  implicit val listResponseMetaFormat: RootJsonFormat[Meta] = jsonFormat4(Meta.apply)
+
+  implicit def listResponseMetaWriter[T: RootJsonWriter]: RootJsonWriter[ListResponse[T]] =
+    new RootJsonWriter[ListResponse[T]] {
+      override def write(listResponse: ListResponse[T]): JsValue = {
+        JsObject(
+          itemsField -> JsArray(listResponse.items.map(_.toJson).toVector),
+          metaField -> listResponse.meta.toJson
+        )
+      }
+    }
+}