ZClient enhancements for URL and path (#3227)

* Adding url and path improvements to ZClient

* Adding simple test.

zio-http/jvm/src/test/scala/zio/http/ClientSpec.scala

@@ -120,6 +120,16 @@ object ClientSpec extends RoutesRunnableSpec {
         app.deploy(Request(headers = Headers(Header.Authorization.Unparsed("", "my-token")))).flatMap(_.body.asString)
       assertZIO(responseContent)(equalTo("my-token"))
     } @@ timeout(5.seconds),
+    test("URL and path manipulation on client level") {
+      for {
+        baseURL   <- DynamicServer.httpURL
+        _         <-
+          Handler.ok.toRoutes.deployAndRequest { c =>
+            (c.updatePath(_ / "my-service") @@ ZClientAspect.requestLogging()).batched.get("/hello")
+          }.runZIO(())
+        loggedUrl <- ZTestLogger.logOutput.map(_.collectFirst { case m => m.annotations("url") }.mkString)
+      } yield assertTrue(loggedUrl == baseURL + "/my-service/hello")
+    },
   )
 
   override def spec = {

zio-http/shared/src/main/scala/zio/http/ZClient.scala

@@ -151,8 +151,10 @@ final case class ZClient[-Env, ReqEnv, -In, +Err, +Out](
 
   def path(path: String): ZClient[Env, ReqEnv, In, Err, Out] = self.path(Path(path))
 
-  def path(path: Path): ZClient[Env, ReqEnv, In, Err, Out] =
-    copy(url = url.copy(path = path))
+  def path(path: Path): ZClient[Env, ReqEnv, In, Err, Out] = updatePath(_ => path)
+
+  def updatePath(f: Path => Path): ZClient[Env, ReqEnv, In, Err, Out] =
+    copy(url = url.copy(path = f(url.path)))
 
   def patch(suffix: String)(implicit ev: Body <:< In, trace: Trace): ZIO[Env & ReqEnv, Err, Out] =
     request(Method.PATCH, suffix)(ev(Body.empty))
@@ -263,6 +265,8 @@ final case class ZClient[-Env, ReqEnv, -In, +Err, +Out](
   def uri(uri: URI): ZClient[Env, ReqEnv, In, Err, Out] = url(URL.fromURI(uri).getOrElse(URL.empty))
 
   def url(url: URL): ZClient[Env, ReqEnv, In, Err, Out] = copy(url = url)
+
+  def updateURL(f: URL => URL): ZClient[Env, ReqEnv, In, Err, Out] = copy(url = f(url))
 }
 
 object ZClient extends ZClientPlatformSpecific {