Latest PDS UI utils

3 files changed, 20 insertions, 15 deletions

diff --git a/src/main/scala/xyz/driver/pdsuicommon/computation/Computation.scala b/src/main/scala/xyz/driver/pdsuicommon/computation/Computation.scala
index ad458de..159c144 100644
--- a/src/main/scala/xyz/driver/pdsuicommon/computation/Computation.scala
+++ b/src/main/scala/xyz/driver/pdsuicommon/computation/Computation.scala
@@ -16,7 +16,7 @@ import scala.concurrent.{ExecutionContext, Future}
   * {{{
   * import scala.concurrent.ExecutionContext.Implicits.global
   * import scala.concurrent.{ExecutionContext, Future}
-  * import com.drivergrp.server.com.drivergrp.server.common.utils.Computation
+  * import xyz.driver.pdsuicommon.computation.Computation
   *
   * def successful = for {
   *   x <- Computation.continue(1)
@@ -65,6 +65,13 @@ final case class Computation[+R, +T](future: Future[Either[R, T]]) {
     Computation.continue(f(a))
   }
 
+  def mapLeft[R2](f: R => R2)(implicit ec: ExecutionContext): Computation[R2, T] = {
+    Computation(future.map {
+      case Left(x)  => Left(f(x))
+      case Right(x) => Right(x)
+    })
+  }
+
   def andThen(f: T => Any)(implicit ec: ExecutionContext): Computation[R, T] = map { a =>
     f(a)
     a
diff --git a/src/main/scala/xyz/driver/pdsuicommon/computation/FutureToComputationOps.scala b/src/main/scala/xyz/driver/pdsuicommon/computation/FutureToComputationOps.scala
index c5800dc..6951e79 100644
--- a/src/main/scala/xyz/driver/pdsuicommon/computation/FutureToComputationOps.scala
+++ b/src/main/scala/xyz/driver/pdsuicommon/computation/FutureToComputationOps.scala
@@ -6,19 +6,17 @@ import scala.concurrent.{ExecutionContext, Future}
 
 final class FutureToComputationOps[T](val self: Future[T]) extends AnyVal {
 
-  def handleDomainError[U, ER](f: PartialFunction[T, U])
-                              (implicit unsuitableToErrorsResponse: DomainError => ER,
-                               ec: ExecutionContext): Future[Either[ER, U]] = {
+  def handleDomainError[U, ER](f: PartialFunction[T, U])(implicit unsuitableToErrorsResponse: DomainError => ER,
+                                                         ec: ExecutionContext): Future[Either[ER, U]] = {
     self.map {
       case x if f.isDefinedAt(x) => Right(f(x))
-      case x: DomainError => Left(unsuitableToErrorsResponse(x))
-      case x => throw new RuntimeException(s"Can not process $x")
+      case x: DomainError        => Left(unsuitableToErrorsResponse(x))
+      case x                     => throw new RuntimeException(s"Can not process $x")
     }
   }
 
-  def toComputation[U, ER](f: PartialFunction[T, U])
-    (implicit unsuitableToErrorsResponse: DomainError => ER,
-      ec: ExecutionContext): Computation[ER, U] = {
+  def toComputation[U, ER](f: PartialFunction[T, U])(implicit unsuitableToErrorsResponse: DomainError => ER,
+                                                     ec: ExecutionContext): Computation[ER, U] = {
     Computation(handleDomainError(f))
   }
 }
diff --git a/src/main/scala/xyz/driver/pdsuicommon/computation/TryToComputationOps.scala b/src/main/scala/xyz/driver/pdsuicommon/computation/TryToComputationOps.scala
index 8282bc6..45f6d41 100644
--- a/src/main/scala/xyz/driver/pdsuicommon/computation/TryToComputationOps.scala
+++ b/src/main/scala/xyz/driver/pdsuicommon/computation/TryToComputationOps.scala
@@ -6,10 +6,10 @@ import scala.util.{Failure, Success, Try}
 
 final class TryToComputationOps[T](val self: Try[T]) extends AnyVal {
 
-  def toComputation[ER](implicit exceptionToErrorResponse: Throwable => ER,
-                        ec: ExecutionContext): Computation[ER, T] = self match {
-    case Success(x) => Computation.continue(x)
-    case Failure(NonFatal(e)) => Computation.abort(exceptionToErrorResponse(e))
-    case Failure(e) => Computation.fail(e)
-  }
+  def toComputation[ER](implicit exceptionToErrorResponse: Throwable => ER, ec: ExecutionContext): Computation[ER, T] =
+    self match {
+      case Success(x)           => Computation.continue(x)
+      case Failure(NonFatal(e)) => Computation.abort(exceptionToErrorResponse(e))
+      case Failure(e)           => Computation.fail(e)
+    }
 }