{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://api-evangelist.com/schemas/amazon/emr/cluster.json",
  "name": "Amazon EMR Cluster",
  "description": "Represents an Amazon EMR cluster with its associated configuration, state, and metadata.",
  "type": "object",
  "required": [
    "id",
    "name",
    "status"
  ],
  "properties": {
    "id": {
      "type": "string",
      "description": "The unique identifier of the cluster",
      "pattern": "^j-[A-Z0-9]{13}$"
    },
    "name": {
      "type": "string",
      "description": "The name of the cluster"
    },
    "status": {
      "type": "object",
      "description": "The current status of the cluster",
      "properties": {
        "state": {
          "type": "string",
          "enum": [
            "STARTING",
            "BOOTSTRAPPING",
            "RUNNING",
            "WAITING",
            "TERMINATING",
            "TERMINATED",
            "TERMINATED_WITH_ERRORS"
          ],
          "description": "The current state of the cluster"
        },
        "stateChangeReason": {
          "type": "object",
          "properties": {
            "code": {
              "type": "string",
              "description": "The programmatic code for the state change reason"
            },
            "message": {
              "type": "string",
              "description": "The descriptive message for the state change reason"
            }
          }
        },
        "timeline": {
          "type": "object",
          "properties": {
            "creationDateTime": {
              "type": "datetime"
            },
            "readyDateTime": {
              "type": "datetime"
            },
            "endDateTime": {
              "type": "datetime"
            }
          }
        }
      }
    },
    "releaseLabel": {
      "type": "string",
      "description": "The Amazon EMR release label (e.g., emr-6.10.0)"
    },
    "applications": {
      "type": "array",
      "description": "The applications installed on the cluster",
      "items": {
        "type": "object",
        "properties": {
          "name": {
            "type": "string",
            "description": "The name of the application (e.g., Spark, Hadoop, Hive)"
          },
          "version": {
            "type": "string",
            "description": "The version of the application"
          }
        }
      }
    },
    "instanceCollectionType": {
      "type": "string",
      "enum": [
        "INSTANCE_FLEET",
        "INSTANCE_GROUP"
      ],
      "description": "The instance collection type"
    },
    "logUri": {
      "type": "string",
      "description": "The S3 path for log storage"
    },
    "autoTerminate": {
      "type": "boolean",
      "description": "Whether the cluster auto-terminates after steps complete"
    },
    "tags": {
      "type": "array",
      "description": "Tags associated with the cluster",
      "items": {
        "type": "object",
        "properties": {
          "key": {
            "type": "string"
          },
          "value": {
            "type": "string"
          }
        }
      }
    }
  }
}