From ad754e39b556f8676d0464b0fb229b0498ed4b91 Mon Sep 17 00:00:00 2001
From: ghostbuster91 <ghostbuster91@users.noreply.github.com>
Date: Mon, 2 Sep 2024 11:33:30 +0200
Subject: [PATCH] Rewrite ts to BigDecimal conversion

---
 .../smithy4s/internals/DocumentEncoderSchemaVisitor.scala   | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/modules/core/src/smithy4s/internals/DocumentEncoderSchemaVisitor.scala b/modules/core/src/smithy4s/internals/DocumentEncoderSchemaVisitor.scala
index d7fdd22fb..c6b555d02 100644
--- a/modules/core/src/smithy4s/internals/DocumentEncoderSchemaVisitor.scala
+++ b/modules/core/src/smithy4s/internals/DocumentEncoderSchemaVisitor.scala
@@ -102,7 +102,11 @@ class DocumentEncoderSchemaVisitor(
         case DATE_TIME => ts => DString(ts.format(DATE_TIME))
         case HTTP_DATE => ts => DString(ts.format(HTTP_DATE))
         case EPOCH_SECONDS =>
-          ts => DNumber(BigDecimal(s"${ts.epochSecond}.${ts.nano}"))
+          ts =>
+            val epochSecondsWithNanos =
+              BigDecimal(ts.epochSecond) + (BigDecimal(ts.nano) * BigDecimal(10)
+                .pow(-9))
+            DNumber(epochSecondsWithNanos)
       }
     case PDocument => from(identity)
     case PFloat    => from(float => DNumber(BigDecimal(float.toDouble)))