{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schema.ontai.dev/v1alpha1/app-core/AppEventSchema.json",
  "title": "AppEventSchema",
  "description": "Application event schema registration. Declares this application's role (producer, consumer, or both) for a specific DomainEvent type. The schemaVersion declared here must be compatible with the schemaVersion declared on the referenced DomainEvent.",
  "x-ont-layer": "app-core",
  "x-ont-stability": "alpha",
  "x-ont-depends-on": [
    {"group": "app.ontai.dev", "kind": "AppIdentity", "version": "v1alpha1"},
    {"group": "core.ontai.dev", "kind": "DomainEvent", "version": "v1alpha1"}
  ],
  "type": "object",
  "required": ["apiVersion", "kind", "metadata", "spec"],
  "properties": {
    "apiVersion": {
      "type": "string",
      "const": "app.ontai.dev/v1alpha1",
      "description": "API version for this resource."
    },
    "kind": {
      "type": "string",
      "const": "AppEventSchema",
      "description": "Resource kind."
    },
    "metadata": {
      "$ref": "https://schema.ontai.dev/v1alpha1/shared/KubernetesMetadata.json",
      "description": "Standard Kubernetes object metadata."
    },
    "spec": {
      "type": "object",
      "description": "Desired state of the AppEventSchema.",
      "required": ["appIdentityRef", "domainEventRef", "role", "topicName", "schemaVersion"],
      "properties": {
        "appIdentityRef": {
          "type": "object",
          "description": "Structured reference to the AppIdentity that owns this event schema registration.",
          "required": ["group", "kind", "version", "name"],
          "properties": {
            "group": { "type": "string", "const": "app.ontai.dev" },
            "kind": { "type": "string", "const": "AppIdentity" },
            "version": { "type": "string", "const": "v1alpha1" },
            "name": { "type": "string", "description": "Name of the AppIdentity resource." }
          },
          "additionalProperties": false
        },
        "domainEventRef": {
          "type": "object",
          "description": "Structured reference to the DomainEvent type this registration covers.",
          "required": ["group", "kind", "version", "name"],
          "properties": {
            "group": { "type": "string", "const": "core.ontai.dev" },
            "kind": { "type": "string", "const": "DomainEvent" },
            "version": { "type": "string", "const": "v1alpha1" },
            "name": { "type": "string", "description": "Name of the DomainEvent resource." }
          },
          "additionalProperties": false
        },
        "role": {
          "type": "string",
          "description": "Role of this application with respect to the referenced event type.",
          "enum": ["producer", "consumer", "both"]
        },
        "brokerRef": {
          "type": "object",
          "description": "Reference to the message broker resource used for this event type.",
          "required": ["kind", "name"],
          "properties": {
            "kind": { "type": "string", "description": "Kind of the broker resource." },
            "name": { "type": "string", "description": "Name of the broker resource." }
          },
          "additionalProperties": false
        },
        "topicName": {
          "type": "string",
          "description": "Name of the topic or channel on the broker for this event type."
        },
        "schemaVersion": {
          "type": "string",
          "description": "Version of the event payload schema used by this application. Must be compatible with DomainEvent.spec.schemaVersion."
        }
      },
      "additionalProperties": false
    },
    "status": {
      "type": "object",
      "description": "Observed state of the AppEventSchema.",
      "properties": {
        "conditions": {
          "type": "array",
          "description": "Standard Kubernetes condition array for this resource.",
          "items": { "$ref": "#/$defs/Condition" }
        }
      },
      "additionalProperties": false
    }
  },
  "additionalProperties": false,
  "$defs": {
    "Condition": {
      "type": "object",
      "required": ["type", "status", "lastTransitionTime", "reason", "message"],
      "properties": {
        "type": { "type": "string" },
        "status": { "type": "string", "enum": ["True", "False", "Unknown"] },
        "lastTransitionTime": { "type": "string", "format": "date-time" },
        "reason": { "type": "string" },
        "message": { "type": "string" },
        "observedGeneration": { "type": "integer" }
      },
      "additionalProperties": false
    }
  }
}