{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://freecad.org/schemas/freecad-web-facade-v1.json",
  "oneOf": [
    { "$ref": "#/$defs/request" },
    { "$ref": "#/$defs/cancel" },
    { "$ref": "#/$defs/success" },
    { "$ref": "#/$defs/failure" }
  ],
  "$defs": {
    "request": {
      "type": "object",
      "required": ["schema", "version", "kind", "requestId", "command", "payload"],
      "properties": {
        "schema": { "const": "freecad-web-facade/v1" },
        "version": { "const": 1 },
        "kind": { "const": "request" },
        "requestId": { "type": "string", "minLength": 1 },
        "command": { "type": "string", "minLength": 1 },
        "payload": {},
        "documentId": { "type": "string", "minLength": 1 }
      },
      "additionalProperties": false
    },
    "cancel": {
      "type": "object",
      "required": ["schema", "version", "kind", "requestId", "cancelOf"],
      "properties": {
        "schema": { "const": "freecad-web-facade/v1" },
        "version": { "const": 1 },
        "kind": { "const": "cancel" },
        "requestId": { "type": "string", "minLength": 1 },
        "cancelOf": { "type": "string", "minLength": 1 },
        "documentId": { "type": "string", "minLength": 1 }
      },
      "additionalProperties": false
    },
    "success": {
      "type": "object",
      "required": ["schema", "version", "kind", "requestId", "result"],
      "properties": {
        "schema": { "const": "freecad-web-facade/v1" },
        "version": { "const": 1 },
        "kind": { "const": "result" },
        "requestId": { "type": "string", "minLength": 1 },
        "result": {}
      },
      "additionalProperties": false
    },
    "failure": {
      "type": "object",
      "required": ["schema", "version", "kind", "requestId", "error"],
      "properties": {
        "schema": { "const": "freecad-web-facade/v1" },
        "version": { "const": 1 },
        "kind": { "const": "error" },
        "requestId": { "type": "string", "minLength": 1 },
        "error": {
          "type": "object",
          "required": ["code", "message"],
          "properties": {
            "code": { "type": "string", "minLength": 1 },
            "message": { "type": "string", "minLength": 1 },
            "diagnostic": { "type": "object" }
          },
          "additionalProperties": false
        }
      },
      "additionalProperties": false
    }
  }
}