{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:orbiplex:schema:sensorium-web-refresh-status:v1",
  "title": "Sensorium Web Refresh Status v1",
  "$defs": {
    "digest": { "type": "string", "pattern": "^sha256:[A-Za-z0-9_-]{43}$" },
    "ref": { "type": "string", "minLength": 1, "maxLength": 512, "pattern": "^[^\\s\\u0000]+$" }
  },
  "type": "object",
  "additionalProperties": false,
  "required": ["schema", "schema/v", "operation/id", "source/ref", "source/generation-ref", "status", "outcome", "attempt", "started/at", "request/digest"],
  "properties": {
    "schema": { "const": "sensorium-web-refresh-status.v1" },
    "schema/v": { "const": 1 },
    "operation/id": { "$ref": "#/$defs/ref" },
    "source/ref": { "$ref": "#/$defs/ref" },
    "source/generation-ref": { "$ref": "#/$defs/ref" },
    "status": { "enum": ["pending", "running", "terminal"] },
    "outcome": { "enum": ["pending", "changed", "no-change", "refused", "failed", "unknown", "cancelled"] },
    "attempt": { "type": "integer", "minimum": 1, "maximum": 1000000 },
    "started/at": { "type": "string", "format": "date-time" },
    "completed/at": { "type": "string", "format": "date-time" },
    "request/digest": { "$ref": "#/$defs/digest" },
    "snapshot/id": { "$ref": "#/$defs/ref" },
    "snapshot/digest": { "$ref": "#/$defs/digest" },
    "observation/id": { "$ref": "#/$defs/ref" },
    "failure/code": { "enum": ["source-not-found", "source-superseded", "refresh-in-progress", "cache-evidence-missing", "cache-binding-mismatch", "artifact-binding-mismatch", "receipt-binding-mismatch", "broker-unavailable", "fetch-not-completed", "extraction-refused", "observation-rejected", "storage-failed", "interrupted", "cancelled"] },
    "failure/phase": { "enum": ["claim", "fetch", "extract", "retain", "observe", "commit", "fence", "recovery", "cancel"] },
    "receipt/refs": {
      "type": "array",
      "minItems": 1,
      "maxItems": 4,
      "uniqueItems": true,
      "items": { "type": "string", "pattern": "^execution-receipt:[A-Za-z0-9_-]{43}$" }
    },
    "retry/class": { "enum": ["terminal", "retryable", "policy-dependent"] }
  },
  "allOf": [
    {
      "if": { "properties": { "status": { "const": "terminal" } }, "required": ["status"] },
      "then": { "required": ["completed/at"] },
      "else": { "not": { "required": ["completed/at"] } }
    },
    {
      "if": { "properties": { "outcome": { "enum": ["changed", "no-change"] } }, "required": ["outcome"] },
      "then": { "required": ["snapshot/id", "snapshot/digest", "observation/id"] },
      "else": {
        "if": { "properties": { "outcome": { "enum": ["refused", "failed", "unknown"] } }, "required": ["outcome"] },
        "then": { "required": ["failure/code", "failure/phase", "retry/class"] }
      }
    }
  ]
}