{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "pattern": "^[A-Fa-f\\d]{24}$"
    },
    "eventId": {
      "type": "string",
      "pattern": "^[A-Fa-f\\d]{24}$"
    },
    "applicationId": {
      "type": "string",
      "pattern": "^[A-Fa-f\\d]{24}$"
    },
    "creationDate": {
      "type": "string",
      "format": "date-time"
    },
    "lastUpdated": {
      "type": "string",
      "format": "date-time"
    },
    "sourceType": {
      "type": "string",
      "enum": [
        "flow",
        "user",
        "device",
        "apiToken",
        "notebook"
      ]
    },
    "sourceId": {
      "type": "string",
      "pattern": "^[A-Fa-f\\d]{24}$"
    },
    "level": {
      "type": "string",
      "enum": [
        "info",
        "warning",
        "error",
        "critical"
      ]
    },
    "state": {
      "type": "string",
      "enum": [
        "new",
        "acknowledged",
        "resolved"
      ]
    },
    "subject": {
      "type": "string",
      "minLength": 1,
      "maxLength": 255
    },
    "message": {
      "type": "string",
      "maxLength": 32767
    },
    "data": {},
    "deviceId": {
      "type": "string",
      "pattern": "^[A-Fa-f\\d]{24}$"
    },
    "eventTags": {
      "type": "object",
      "patternProperties": {
        "^[0-9a-zA-Z_-]{1,255}$": {
          "type": "string",
          "minLength": 1,
          "maxLength": 255
        }
      },
      "additionalProperties": false
    },
    "updates": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "sourceType": {
            "type": "string",
            "enum": [
              "flow",
              "user",
              "device",
              "apiToken",
              "notebook"
            ]
          },
          "sourceId": {
            "type": "string",
            "pattern": "^[A-Fa-f\\d]{24}$"
          },
          "creationDate": {
            "type": "string",
            "format": "date-time"
          },
          "comment": {
            "type": "string",
            "maxLength": 32767
          },
          "data": {},
          "stateChange": {
            "type": "object",
            "properties": {
              "old": {
                "type": "string",
                "enum": [
                  "new",
                  "acknowledged",
                  "resolved"
                ]
              },
              "new": {
                "type": "string",
                "enum": [
                  "new",
                  "acknowledged",
                  "resolved"
                ]
              }
            }
          }
        }
      }
    }
  }
}