From e66f97217088f74963c4218182e0cec754e69c4d Mon Sep 17 00:00:00 2001
From: Brian Holt <bholt@dwolla.com>
Date: Mon, 25 Sep 2023 15:18:30 -0500
Subject: [PATCH] switch from Shapeless tagged types to Monix Newtypes

  this is a step towards Scala 3 support
---
 README.md                                     |  2 +-
 build.sbt                                     |  2 +-
 .../scala/com/dwolla/config/package.scala     | 21 +++++++------------
 3 files changed, 10 insertions(+), 15 deletions(-)

diff --git a/README.md b/README.md
index 1ea87c7..8e95c56 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 ![Dwolla/scala-secure-config CI](https://github.com/Dwolla/scala-secure-config/actions/workflows/ci.yml/badge.svg)
 [![license](https://img.shields.io/github/license/Dwolla/scala-secure-config.svg?style=flat-square)](https://github.com/Dwolla/scala-secure-config/blob/master/LICENSE)
 
-Tagged type and [PureConfig](https://pureconfig.github.io) [ConfigReader](https://github.com/pureconfig/pureconfig/blob/master/core/src/main/scala/pureconfig/ConfigReader.scala) for automatically decrypting encrypted config values in TypeSafe Config files.
+ [PureConfig](https://pureconfig.github.io) [ConfigReader](https://github.com/pureconfig/pureconfig/blob/master/core/src/main/scala/pureconfig/ConfigReader.scala) for automatically decrypting encrypted config values using AWS KMS.
 
 ## Artifacts
 
diff --git a/build.sbt b/build.sbt
index d62c69e..838c18e 100644
--- a/build.sbt
+++ b/build.sbt
@@ -24,7 +24,7 @@ lazy val `secure-config` = (project in file("."))
     libraryDependencies ++= {
       Seq(
         "com.github.pureconfig" %% "pureconfig-cats-effect" % "0.17.4",
-        "com.chuusai" %% "shapeless" % "2.3.10",
+        "io.monix" %% "newtypes-core" % "0.2.3",
         "com.dwolla" %% "fs2-aws-java-sdk2" % "3.0.0-RC2",
       )
     },
diff --git a/src/main/scala/com/dwolla/config/package.scala b/src/main/scala/com/dwolla/config/package.scala
index 6c40c5d..9fca398 100644
--- a/src/main/scala/com/dwolla/config/package.scala
+++ b/src/main/scala/com/dwolla/config/package.scala
@@ -1,11 +1,10 @@
 package com.dwolla
 
-import cats._
-import cats.syntax.all._
-import com.dwolla.fs2aws.kms._
+import cats.*
+import cats.syntax.all.*
+import com.dwolla.fs2aws.kms.*
+import monix.newtypes.NewtypeWrapped
 import pureconfig.ConfigReader
-import shapeless.tag
-import shapeless.tag.@@
 
 package object config {
   private[this] val secureStringRegex = "^SECURE: (.+)".r
@@ -15,14 +14,10 @@ package object config {
       case secureStringRegex(cryptotext) =>
         for {
           bytes <- decryptionClient.decrypt(cryptotext)
-        } yield tagSecurableString(bytes)
-      case s => tagSecurableString(s).pure[F]
+        } yield SecurableString(bytes)
+      case s => SecurableString(s).pure[F]
     }
 
-  type SecurableString = String @@ SecurableStringTag
-  val tagSecurableString: String => SecurableString = tag[SecurableStringTag][String](_)
-}
-
-package config {
-  trait SecurableStringTag
+  type SecurableString = SecurableString.Type
+  object SecurableString extends NewtypeWrapped[String]
 }