{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://temenos.com/schemas/temenos/event.json",
  "title": "Temenos Banking Event",
  "description": "Schema for Temenos banking events published through the event-driven architecture via Apache Kafka and JMS messaging. Covers business events, system events, and data replication events.",
  "type": "object",
  "required": ["eventId", "eventType", "timestamp"],
  "properties": {
    "eventId": {
      "type": "string",
      "description": "Unique event identifier for deduplication and tracking"
    },
    "eventType": {
      "type": "string",
      "description": "Classification of the event type",
      "enum": [
        "account.created",
        "account.closed",
        "account.status.changed",
        "payment.order.accepted",
        "payment.order.confirmed",
        "payment.order.failed",
        "customer.onboarded",
        "customer.updated",
        "customer.kyc.changed",
        "transaction.committed",
        "compliance.sanction.alert",
        "compliance.risk.changed",
        "data.replication",
        "system.health",
        "system.config.changed"
      ]
    },
    "source": {
      "type": "string",
      "description": "Source application or service that generated the event"
    },
    "correlationId": {
      "type": "string",
      "description": "Correlation identifier for tracing related events across services"
    },
    "timestamp": {
      "type": "string",
      "format": "date-time",
      "description": "ISO 8601 timestamp when the event occurred"
    },
    "version": {
      "type": "string",
      "description": "Event schema version for compatibility",
      "pattern": "^[0-9]+\\.[0-9]+$"
    },
    "payload": {
      "type": "object",
      "description": "Event-specific payload data in JSON format",
      "additionalProperties": true
    },
    "metadata": {
      "$ref": "#/$defs/EventMetadata"
    }
  },
  "$defs": {
    "EventMetadata": {
      "type": "object",
      "description": "Additional metadata about the event for processing and routing",
      "properties": {
        "tenantId": {
          "type": "string",
          "description": "Multi-tenant identifier"
        },
        "userId": {
          "type": "string",
          "description": "User who triggered the event"
        },
        "channel": {
          "type": "string",
          "description": "Channel through which the event originated",
          "enum": ["API", "ONLINE_BANKING", "MOBILE", "BRANCH", "ATM", "BATCH", "SYSTEM"]
        },
        "priority": {
          "type": "string",
          "description": "Event processing priority",
          "enum": ["LOW", "NORMAL", "HIGH", "CRITICAL"]
        },
        "retryCount": {
          "type": "integer",
          "description": "Number of delivery retry attempts",
          "minimum": 0
        }
      }
    }
  }
}