def reads()

in magenta-lib/src/main/scala/magenta/deployment_type/param_reads/PatternValue.scala [12:37]

• 26 lines of code
• 8 McCabe index (conditional complexity)

    def reads(json: JsValue) = {
      json match {
        case JsString(default) => JsSuccess(List(PatternValue(".*", default)))
        case JsArray(patternValues) =>
          patternValues.zipWithIndex
            .foldLeft(
              Valid(Nil): Validated[List[
                (JsPath, scala.collection.Seq[JsonValidationError])
              ], List[PatternValue]]
            ) { case (acc, (value, index)) =>
              val validated = Json.fromJson[PatternValue](value) match {
                case JsSuccess(v, _) => Valid(List(v))
                case JsError(e) =>
                  Invalid(e.toList.map { case (p, valerr) =>
                    (JsPath \ index.toString) ++ p -> valerr
                  })
              }
              acc combine validated
            }
            .fold(JsError.apply, res => JsSuccess(res))
        case other =>
          JsError(
            "Need a string or an array of objects with pattern and value fields"
          )
      }
    }