add json format for date (ISO)

1 files changed, 17 insertions, 0 deletions

diff --git a/src/main/scala/xyz/driver/core/json.scala b/src/main/scala/xyz/driver/core/json.scala
index 277543b..ecd7cce 100644
--- a/src/main/scala/xyz/driver/core/json.scala
+++ b/src/main/scala/xyz/driver/core/json.scala
@@ -7,6 +7,7 @@ import akka.http.scaladsl.unmarshalling.Unmarshaller
 import spray.json.{DeserializationException, JsNumber, _}
 import xyz.driver.core.revision.Revision
 import xyz.driver.core.time.Time
+import xyz.driver.core.date.Date
 
 import scala.reflect.runtime.universe._
 
@@ -66,6 +67,22 @@ object json {
     }
   }
 
+  implicit val dateFormat = new RootJsonFormat[Date] {
+    def write(date: Date) = JsObject("calendarDate" -> JsString(date.iso8601))
+
+    def read(value: JsValue): Date = value match {
+      case JsObject(fields) =>
+        fields
+          .get("calendarDate")
+          .flatMap {
+            case JsString(iso) => Date.parseIso(iso)
+            case _             => None
+          }
+          .getOrElse(throw DeserializationException("Date expects YYYY-MM-DD"))
+      case _ => throw DeserializationException("Date expects YYYY-MM-DD")
+    }
+  }
+
   def RevisionInPath[T]: PathMatcher1[Revision[T]] =
     PathMatcher("""[\da-fA-F]{8}-[\da-fA-F]{4}-[\da-fA-F]{4}-[\da-fA-F]{4}-[\da-fA-F]{12}""".r) flatMap { string =>
       Some(Revision[T](string))