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package.scala
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package.scala
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/*
* Copyright 2021 Typelevel
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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 feral.lambda
import cats.syntax.all._
import io.circe._
import io.circe.syntax._
import monix.newtypes._
import org.http4s.Uri
import org.http4s.circe.CirceInstances
package object cloudformation {
type PhysicalResourceId = PhysicalResourceId.Type
type StackId = StackId.Type
type RequestId = RequestId.Type
type LogicalResourceId = LogicalResourceId.Type
type ResourceType = ResourceType.Type
}
package cloudformation {
object PhysicalResourceId extends Newtype[String] {
/**
* Applies validation rules from
* https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/crpg-ref-responses.html
*/
def apply(s: String): Option[Type] =
Option.when(s.length <= 1024 && s.nonEmpty)(unsafeCoerce(s))
def unsafeApply(s: String): PhysicalResourceId = unsafeCoerce(s)
def unapply[A](a: A)(implicit ev: A =:= Type): Some[String] =
Some(value(ev(a)))
implicit val PhysicalResourceIdDecoder: Decoder[PhysicalResourceId] = derive[Decoder]
implicit val PhysicalResourceIdEncoder: Encoder[PhysicalResourceId] = derive[Encoder]
}
object StackId extends NewtypeWrapped[String] {
implicit val StackIdDecoder: Decoder[StackId] = derive[Decoder]
implicit val StackIdEncoder: Encoder[StackId] = derive[Encoder]
}
object RequestId extends NewtypeWrapped[String] {
implicit val RequestIdDecoder: Decoder[RequestId] = derive[Decoder]
implicit val RequestIdEncoder: Encoder[RequestId] = derive[Encoder]
}
object LogicalResourceId extends NewtypeWrapped[String] {
implicit val LogicalResourceIdDecoder: Decoder[LogicalResourceId] = derive[Decoder]
implicit val LogicalResourceIdEncoder: Encoder[LogicalResourceId] = derive[Encoder]
}
object ResourceType extends NewtypeWrapped[String] {
implicit val ResourceTypeDecoder: Decoder[ResourceType] = derive[Decoder]
implicit val ResourceTypeEncoder: Encoder[ResourceType] = derive[Encoder]
}
sealed trait CloudFormationRequestType
object CloudFormationRequestType {
case object CreateRequest extends CloudFormationRequestType
case object UpdateRequest extends CloudFormationRequestType
case object DeleteRequest extends CloudFormationRequestType
final case class OtherRequestType(requestType: String) extends CloudFormationRequestType {
override def toString: String = requestType
}
implicit val encoder: Encoder[CloudFormationRequestType] = {
case CreateRequest => "Create".asJson
case UpdateRequest => "Update".asJson
case DeleteRequest => "Delete".asJson
case OtherRequestType(req) => req.asJson
}
implicit val decoder: Decoder[CloudFormationRequestType] = Decoder[String].map {
case "Create" => CreateRequest
case "Update" => UpdateRequest
case "Delete" => DeleteRequest
case other => OtherRequestType(other)
}
}
sealed trait RequestResponseStatus
object RequestResponseStatus {
case object Success extends RequestResponseStatus
case object Failed extends RequestResponseStatus
implicit val encoder: Encoder[RequestResponseStatus] = {
case Success => "SUCCESS".asJson
case Failed => "FAILED".asJson
}
implicit val decoder: Decoder[RequestResponseStatus] = Decoder[String].emap {
case "SUCCESS" => Success.asRight
case "FAILED" => Failed.asRight
case other => s"Invalid response status: $other".asLeft
}
}
final case class CloudFormationCustomResourceRequest[A](
RequestType: CloudFormationRequestType,
ResponseURL: Uri,
StackId: StackId,
RequestId: RequestId,
ResourceType: ResourceType,
LogicalResourceId: LogicalResourceId,
PhysicalResourceId: Option[PhysicalResourceId],
ResourceProperties: A,
OldResourceProperties: Option[JsonObject])
object CloudFormationCustomResourceRequest extends CirceInstances {
implicit def CloudFormationCustomResourceRequestDecoder[A: Decoder]
: Decoder[CloudFormationCustomResourceRequest[A]] =
Decoder.forProduct9(
"RequestType",
"ResponseURL",
"StackId",
"RequestId",
"ResourceType",
"LogicalResourceId",
"PhysicalResourceId",
"ResourceProperties",
"OldResourceProperties"
)(CloudFormationCustomResourceRequest.apply[A])
implicit def CloudFormationCustomResourceRequestEncoder[A: Encoder]
: Encoder[CloudFormationCustomResourceRequest[A]] =
Encoder.forProduct9(
"RequestType",
"ResponseURL",
"StackId",
"RequestId",
"ResourceType",
"LogicalResourceId",
"PhysicalResourceId",
"ResourceProperties",
"OldResourceProperties"
) { r =>
(
r.RequestType,
r.ResponseURL,
r.StackId,
r.RequestId,
r.ResourceType,
r.LogicalResourceId,
r.PhysicalResourceId,
r.ResourceProperties,
r.OldResourceProperties
)
}
}
final case class CloudFormationCustomResourceResponse(
Status: RequestResponseStatus,
Reason: Option[String],
PhysicalResourceId: Option[PhysicalResourceId],
StackId: StackId,
RequestId: RequestId,
LogicalResourceId: LogicalResourceId,
Data: Json)
object CloudFormationCustomResourceResponse {
implicit val CloudFormationCustomResourceResponseDecoder
: Decoder[CloudFormationCustomResourceResponse] =
Decoder
.forProduct7(
"Status",
"Reason",
"PhysicalResourceId",
"StackId",
"RequestId",
"LogicalResourceId",
"Data"
)(CloudFormationCustomResourceResponse.apply)
.prepare {
_.withFocus {
_.mapObject { obj =>
if (obj.contains("Data")) obj
else obj.add("Data", Json.Null)
}
}
}
implicit val CloudFormationCustomResourceResponseEncoder
: Encoder[CloudFormationCustomResourceResponse] =
Encoder.forProduct7(
"Status",
"Reason",
"PhysicalResourceId",
"StackId",
"RequestId",
"LogicalResourceId",
"Data"
) { r =>
(
r.Status,
r.Reason,
r.PhysicalResourceId,
r.StackId,
r.RequestId,
r.LogicalResourceId,
r.Data
)
}
}
final case class HandlerResponse[A](physicalId: PhysicalResourceId, data: Option[A])
object HandlerResponse {
implicit def HandlerResponseCodec[A: Encoder: Decoder]: Codec[HandlerResponse[A]] =
Codec.forProduct2("PhysicalResourceId", "Data")(HandlerResponse.apply[A]) { r =>
(r.physicalId, r.data)
}
}
object MissingResourceProperties extends RuntimeException
}