{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:orbiplex:schema:room-membership:v1",
  "title": "RoomMembership v1",
  "description": "Durable room membership grant, join, leave or revoke payload carried by an Agora record envelope.",
  "type": "object",
  "additionalProperties": false,
  "x-dia-workflow": "project",
  "x-dia-status": "draft",
  "x-dia-basis": ["P070"],
  "required": [
    "schema/v",
    "room/id",
    "subject",
    "op",
    "authority/subject",
    "seq/no",
    "created-at"
  ],
  "properties": {
    "schema/v": { "const": 1 },
    "room/id": { "$ref": "room.v1.schema.json#/$defs/room_id" },
    "subject": { "$ref": "room.v1.schema.json#/$defs/subject" },
    "op": { "type": "string", "enum": ["grant", "revoke", "join", "leave"] },
    "grants": {
      "type": "array",
      "uniqueItems": true,
      "items": { "$ref": "room.v1.schema.json#/$defs/grant" }
    },
    "authority/subject": { "$ref": "room.v1.schema.json#/$defs/subject" },
    "seq/no": { "type": "integer", "minimum": 0 },
    "created-at": { "type": "string", "format": "date-time" },
    "reason/ref": { "type": "string", "minLength": 1 },
    "extensions": { "$ref": "room.v1.schema.json#/$defs/extensions" }
  },
  "allOf": [
    {
      "if": { "properties": { "op": { "enum": ["grant", "join"] } }, "required": ["op"] },
      "then": { "required": ["grants"], "properties": { "grants": { "minItems": 1 } } }
    }
  ]
}