{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/amberflo/refs/heads/main/json-schema/billing-invoice-schema.json",
  "title": "Invoice",
  "description": "A customer invoice",
  "type": "object",
  "properties": {
    "invoiceId": {
      "type": "string",
      "description": "Unique invoice identifier",
      "example": "inv-500123"
    },
    "customerId": {
      "type": "string",
      "description": "Customer identifier",
      "example": "customer-123456"
    },
    "startTime": {
      "type": "integer",
      "description": "Invoice period start in Unix seconds",
      "example": 1718100000
    },
    "endTime": {
      "type": "integer",
      "description": "Invoice period end in Unix seconds",
      "example": 1718186400
    },
    "totalAmount": {
      "type": "number",
      "description": "Total invoice amount",
      "example": 99.5
    },
    "currency": {
      "type": "string",
      "description": "Invoice currency code",
      "example": "USD"
    },
    "status": {
      "type": "string",
      "description": "Invoice payment status",
      "enum": [
        "DRAFT",
        "PENDING",
        "PAID",
        "VOID"
      ],
      "example": "PAID"
    }
  }
}