{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:orbiplex:schema:room-relay-endpoint:v1",
  "title": "RoomRelayEndpoint v1",
  "description": "Durable, Agora-signed selection fact for a Room WSS relay. The fact carries no live payload and grants no authority by itself. sealed-sender-key-v1 is valid only with federation-service placement.",
  "type": "object",
  "additionalProperties": false,
  "x-dia-workflow": "project",
  "x-dia-status": "draft",
  "x-dia-basis": ["P070"],
  "required": [
    "schema/v", "room/id", "seq/no", "relay/epoch", "relay/subject",
    "relay/placement", "endpoint/url", "crypto/profile", "ordering/profile",
    "selection/evidence-refs", "issued-at", "expires-at", "authority/subject"
  ],
  "properties": {
    "schema/v": { "const": 1 },
    "room/id": { "$ref": "room.v1.schema.json#/$defs/room_id" },
    "seq/no": { "type": "integer", "minimum": 1 },
    "relay/epoch": { "type": "integer", "minimum": 1 },
    "relay/subject": { "$ref": "room.v1.schema.json#/$defs/subject" },
    "relay/placement": {
      "type": "string",
      "enum": ["requester", "room-member", "federation-service"]
    },
    "endpoint/url": {
      "type": "string",
      "format": "uri",
      "minLength": 8,
      "maxLength": 2048,
      "pattern": "^wss://"
    },
    "crypto/profile": {
      "type": "string",
      "enum": ["member-visible-tls-v1", "sealed-sender-key-v1"]
    },
    "ordering/profile": { "const": "relay-total-order-v1" },
    "selection/evidence-refs": {
      "type": "array",
      "minItems": 2,
      "maxItems": 16,
      "uniqueItems": true,
      "items": {
        "type": "string",
        "minLength": 1,
        "maxLength": 256,
        "pattern": "^(node-advertisement|node-address-attestation):sha256:[A-Za-z0-9_-]+$"
      },
      "allOf": [
        { "contains": { "pattern": "^node-advertisement:sha256:" }, "minContains": 1 },
        { "contains": { "pattern": "^node-address-attestation:sha256:" }, "minContains": 1 }
      ]
    },
    "issued-at": { "type": "string", "format": "date-time" },
    "expires-at": { "type": "string", "format": "date-time" },
    "authority/subject": { "$ref": "room.v1.schema.json#/$defs/subject" },
    "extensions": { "$ref": "room.v1.schema.json#/$defs/extensions" }
  },
  "allOf": [
    {
      "if": {
        "properties": { "crypto/profile": { "const": "sealed-sender-key-v1" } },
        "required": ["crypto/profile"]
      },
      "then": {
        "properties": { "relay/placement": { "const": "federation-service" } }
      }
    }
  ]
}