{
  "$id": "https://alwaysai.co/cloud-message-schema.json",
  "title": "cloud_message",
  "$schema": "https://json-schema.org/draft/2019-09/schema",
  "description": "The messaging payload structure for messages sent from device agent to the cloud",
  "type": "object",
  "properties": {
    "timestamp": {
      "type": "string"
    },
    "deviceId": {
      "description": "Device UUID of device sending the message",
      "type": "string"
    },
    "topic": {
      "oneOf": [{ "$ref": "#/$defs/toCloud" }]
    },
    "messageType": {
      "type": "string",
      "enum": [
        "signed_urls_request"
      ]
    },
    "txId": {
      "$ref": "https://alwaysai.co/common-schema.json#/$defs/txId"
    },
    "payload": {
      "type": "object"
    }
  },
  "allOf":[
  {
    "if": {
      "properties": {
        "messageType": { "const": "signed_urls_request" }
      }
    },
    "then": {
      "properties": {
        "payload": {"$ref": "https://alwaysai.co/signed-urls-request-schema.json"}
      }
    }
  }
  ],
  "required": ["timestamp", "deviceId", "txId", "payload", "messageType"],
  "$defs": {
    "toCloud": {
      "description": "Messages sent from the device agent to cloud backend client",
      "type": "string",
      "pattern": "to-cloud/aai-device/[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$"
    }
  }
}