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SchemaState.scala
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SchemaState.scala
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/*
* Copyright 2023 Valdemar Grange
*
* 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 gql
import cats._
import gql.resolver.Step.BatchKey
final case class SchemaState[F[_]](
nextId: Int,
batchFunctions: Map[BatchKey[?, ?], SchemaState.BatchFunction[F, ?, ?]]
) {
def mapK[G[_]](fk: F ~> G): SchemaState[G] =
SchemaState(
nextId,
batchFunctions.map { case (k, v) => k -> SchemaState.BatchFunction(v.f.andThen(fk.apply)) }
)
}
object SchemaState {
final case class BatchFunction[F[_], K, V](f: Set[K] => F[Map[K, V]])
def empty[F[_]] = SchemaState[F](nextId = 0, batchFunctions = Map.empty)
}