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/*
* Copyright 2021-2024 Disney Streaming
*
* Licensed under the Tomorrow Open Source Technology License, Version 1.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://disneystreaming.github.io/TOST-1.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package smithy4s.server
import smithy4s.schema.OperationSchema
import smithy4s.capability.MonadThrowLike
// scalafmt: {maxColumn = 120}
final class UnaryServerCodecs[F[_], Request, Response, I, E, O](
val inputDecoder: Request => F[I],
val errorEncoder: E => F[Response],
val throwableEncoder: Throwable => F[Response],
val outputEncoder: O => F[Response]
) {
def transformRequest[Request0](f: Request0 => F[Request])(implicit
F: MonadThrowLike[F]
): UnaryServerCodecs[F, Request0, Response, I, E, O] = {
new UnaryServerCodecs(
f.andThen(F.flatMap(_)(inputDecoder)),
errorEncoder,
throwableEncoder,
outputEncoder
)
}
def transformResponse[Response1](
f: Response => F[Response1]
)(implicit F: MonadThrowLike[F]): UnaryServerCodecs[F, Request, Response1, I, E, O] = {
new UnaryServerCodecs(
inputDecoder,
errorEncoder.andThen(F.flatMap(_)(f)),
throwableEncoder.andThen(F.flatMap(_)(f)),
outputEncoder.andThen(F.flatMap(_)(f))
)
}
}
object UnaryServerCodecs {
trait Make[F[_], Request, Response] { self =>
def apply[I, E, O, SI, SO](
schema: OperationSchema[I, E, O, SI, SO]
): UnaryServerCodecs[F, Request, Response, I, E, O]
final def transformResponse[Response1](
f: Response => F[Response1]
)(implicit F: MonadThrowLike[F]): Make[F, Request, Response1] = new Make[F, Request, Response1] {
def apply[I, E, O, SI, SO](
schema: OperationSchema[I, E, O, SI, SO]
): UnaryServerCodecs[F, Request, Response1, I, E, O] = self(schema).transformResponse(f)
}
final def transformRequest[Request0](
f: Request0 => F[Request]
)(implicit F: MonadThrowLike[F]): Make[F, Request0, Response] = new Make[F, Request0, Response] {
def apply[I, E, O, SI, SO](
schema: OperationSchema[I, E, O, SI, SO]
): UnaryServerCodecs[F, Request0, Response, I, E, O] = self(schema).transformRequest(f)
}
}
}
