{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://ingest.profit-base.online/exchange/v1/schemas/envelope.schema.json",
  "title": "Offline-file envelope",
  "description": "The wrapper of an offline exchange file. It carries no handle, player, source folder or file path.",
  "type": "object",
  "properties": {
    "format": {
      "type": "string",
      "pattern": "^[a-z0-9]+(\\.[a-z0-9-]+)+$"
    },
    "formatVersion": {
      "type": "string",
      "pattern": "^[0-9]+\\.[0-9]+$",
      "description": "<major>.<minor>. The Basetool reads every 1.x and refuses any other major: the part before the dot must be exactly 1."
    },
    "generator": {
      "type": "object",
      "properties": {
        "name": {
          "type": "string",
          "minLength": 1,
          "maxLength": 100
        },
        "version": {
          "type": "string",
          "minLength": 1,
          "maxLength": 50
        }
      },
      "required": [
        "name",
        "version"
      ]
    },
    "generatedAt": {
      "type": "string",
      "format": "date-time",
      "description": "RFC 3339 timestamp in UTC."
    },
    "items": {
      "type": "array"
    },
    "extensions": {
      "$ref": "extensions.schema.json"
    }
  },
  "required": [
    "format",
    "formatVersion",
    "items"
  ]
}