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Rework Update JSON encoders and decoders #3261

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merged 3 commits into from
Jan 15, 2025
Merged

Rework Update JSON encoders and decoders #3261

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f362631
Rework `Update` JSON encoders and decoders
fthomas Jan 15, 2025
1aa0972
Use Decoder/Encoder forProduct to define instances
fthomas Jan 15, 2025
61e4780
Scala 3 needs more type annotations
fthomas Jan 15, 2025
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136 changes: 83 additions & 53 deletions modules/core/src/main/scala/org/scalasteward/core/data/Update.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -18,9 +18,7 @@ package org.scalasteward.core.data

import cats.Order
import cats.implicits.*
import io.circe.generic.semiauto.*
import io.circe.syntax.*
import io.circe.{Decoder, Encoder, HCursor, Json}
import io.circe.{Decoder, Encoder}
import org.scalasteward.core.repoconfig.PullRequestGroup
import org.scalasteward.core.util
import org.scalasteward.core.util.Nel
Expand Down Expand Up @@ -198,66 +196,98 @@ object Update {
}
}

// TODO: Derive all instances of `Encoder`/`Decoder` here using `deriveCodec`
// Partially manually implemented so we don't fail reading old caches (those
// still using `Single`/`Group`)
implicit val SingleOrder: Order[Single] =
Order.by((u: Single) => (u.crossDependencies, u.newerVersions))

implicit val ForArtifactIdEncoder: Encoder[ForArtifactId] = {
val derived = deriveEncoder[ForArtifactId]
// Encoder and Decoder instances

derived.mapJson(json => Json.obj("ForArtifactId" -> json))
}
// ForArtifactId

implicit val ForArtifactIdDecoder: Decoder[ForArtifactId] = {
val derived = deriveDecoder[ForArtifactId]
derived
.prepare(_.downField("ForArtifactId"))
.or(derived.prepare(_.downField("Single")))
}
implicit private val forArtifactIdEncoder: Encoder[ForArtifactId] =
Encoder.forProduct1("ForArtifactId")(identity[ForArtifactId]) {
Encoder.forProduct4("crossDependency", "newerVersions", "newerGroupId", "newerArtifactId") {
s => (s.crossDependency, s.newerVersions, s.newerGroupId, s.newerArtifactId)
}
}

implicit val ForGroupIdEncoder: Encoder[ForGroupId] = {
val derived = deriveEncoder[ForGroupId]
private val unwrappedForArtifactIdDecoder: Decoder[ForArtifactId] =
Decoder.forProduct4("crossDependency", "newerVersions", "newerGroupId", "newerArtifactId") {
(
crossDependency: CrossDependency,
newerVersions: Nel[Version],
newerGroupId: Option[GroupId],
newerArtifactId: Option[String]
) =>
ForArtifactId(crossDependency, newerVersions, newerGroupId, newerArtifactId)
}

derived.mapJson(json => Json.obj("ForGroupId" -> json))
}
private val forArtifactIdDecoderV1: Decoder[ForArtifactId] =
Decoder.forProduct1("Single")(identity[ForArtifactId])(unwrappedForArtifactIdDecoder)

private val oldForGroupIdDecoder: Decoder[ForGroupId] =
(c: HCursor) =>
for {
crossDependencies <- c.downField("crossDependencies").as[Nel[CrossDependency]]
newerVersions <- c.downField("newerVersions").as[Nel[Version]]
forArtifactIds = crossDependencies
.map(crossDependency => ForArtifactId(crossDependency, newerVersions))
} yield ForGroupId(forArtifactIds)

implicit val ForGroupIdDecoder: Decoder[ForGroupId] =
deriveDecoder[ForGroupId]
.prepare(_.downField("ForGroupId"))
.or(oldForGroupIdDecoder.prepare(_.downField("ForGroupId")))
.or(oldForGroupIdDecoder.prepare(_.downField("Group")))

implicit val GroupedEncoder: Encoder[Grouped] = {
val derived = deriveEncoder[Grouped]

derived.mapJson(json => Json.obj("Grouped" -> json))
}
private val forArtifactIdDecoderV2 =
Decoder.forProduct1("ForArtifactId")(identity[ForArtifactId])(unwrappedForArtifactIdDecoder)

implicit val GroupedDecoder: Decoder[Grouped] =
deriveDecoder[Grouped].prepare(_.downField("Grouped"))
implicit private val forArtifactIdDecoder: Decoder[ForArtifactId] =
forArtifactIdDecoderV2.or(forArtifactIdDecoderV1)

implicit val SingleOrder: Order[Single] =
Order.by((u: Single) => (u.crossDependencies, u.newerVersions))
// ForGroupId

private val forGroupIdEncoder: Encoder[ForGroupId] =
Encoder.forProduct1("ForGroupId")(identity[ForGroupId]) {
Encoder.forProduct1("forArtifactIds")(_.forArtifactIds)
}

private val unwrappedForGroupIdDecoderV1: Decoder[ForGroupId] =
Decoder.forProduct2("crossDependencies", "newerVersions") {
(crossDependencies: Nel[CrossDependency], newerVersions: Nel[Version]) =>
val forArtifactIds =
crossDependencies.map(crossDependency => ForArtifactId(crossDependency, newerVersions))
ForGroupId(forArtifactIds)
}

implicit val UpdateEncoder: Encoder[Update] = {
case update: Grouped => update.asJson
case update: ForArtifactId => update.asJson
case update: ForGroupId => update.asJson
private val unwrappedForGroupIdDecoderV3: Decoder[ForGroupId] =
Decoder.forProduct1("forArtifactIds") { (forArtifactIds: Nel[ForArtifactId]) =>
ForGroupId(forArtifactIds)
}

private val forGroupIdDecoderV1: Decoder[ForGroupId] =
Decoder.forProduct1("Group")(identity[ForGroupId])(unwrappedForGroupIdDecoderV1)

private val forGroupIdDecoderV2: Decoder[ForGroupId] =
Decoder.forProduct1("ForGroupId")(identity[ForGroupId])(unwrappedForGroupIdDecoderV1)

private val forGroupIdDecoderV3: Decoder[ForGroupId] =
Decoder.forProduct1("ForGroupId")(identity[ForGroupId])(unwrappedForGroupIdDecoderV3)

private val forGroupIdDecoder: Decoder[ForGroupId] =
forGroupIdDecoderV3.or(forGroupIdDecoderV2).or(forGroupIdDecoderV1)

// Grouped

private val groupedEncoder: Encoder[Grouped] =
Encoder.forProduct1("Grouped")(identity[Grouped]) {
Encoder.forProduct3("name", "title", "updates")(s => (s.name, s.title, s.updates))
}

private val groupedDecoder: Decoder[Grouped] =
Decoder.forProduct1("Grouped")(identity[Grouped]) {
Decoder.forProduct3("name", "title", "updates") {
(name: String, title: Option[String], updates: List[ForArtifactId]) =>
Grouped(name, title, updates)
}
}

// Update

implicit val updateEncoder: Encoder[Update] = {
case update: ForArtifactId => forArtifactIdEncoder.apply(update)
case update: ForGroupId => forGroupIdEncoder.apply(update)
case update: Grouped => groupedEncoder.apply(update)
}

implicit val UpdateDecoder: Decoder[Update] =
ForArtifactIdDecoder
implicit val updateDecoder: Decoder[Update] =
forArtifactIdDecoder
.widen[Update]
.or(ForGroupIdDecoder.widen[Update])
.or(Decoder[Grouped].widen[Update])

.or(forGroupIdDecoder.widen[Update])
.or(groupedDecoder.widen[Update])
}
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