Validate routes, pretty json, meteo keys

src/main/scala/server/ValidateRoutes.scala

@@ -0,0 +1,43 @@
+package server
+
+import parse.{AggregateMeteo, Meteo}
+
+import java.time.{LocalDate, LocalDateTime}
+import java.time.format.DateTimeFormatter
+import scala.util.Try
+
+object ValidateRoutes {
+  object DateTimeRange {
+    def unapply(str: String): Option[(LocalDateTime, LocalDateTime)] = {
+      val formatter = DateTimeFormatter.ofPattern("yyyyMMdd_HHmm")
+      str.split("-")
+        .toList
+        .map(str => Try(LocalDateTime.parse(str, formatter)).toOption) match {
+        case List(Some(from), Some(to)) => Some(from, to)
+        case _ => None
+      }
+    }
+  }
+
+  object ValidDate {
+    def unapply(str: String): Option[LocalDate] = {
+      val formatter = DateTimeFormatter.ofPattern("yyyyMMdd")
+      Try(LocalDate.parse(str, formatter)).toOption
+    }
+  }
+
+  object CityList {
+    def unapply(str: String): Option[List[String]] = {
+      str.split(",").toList match {
+        case list => Some(list)
+        case Nil => None
+      }
+    }
+  }
+
+  object Aggregate {
+    def unapply(str: String): Option[AggregateMeteo] = {
+      Meteo.stringToAggregateParam(str)
+    }
+  }
+}