{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://abcs.sirvisetti.com/schemas/objects/finance/invoice.schema.json",
  "title": "ABCS Finance Invoice",
  "type": "object",
  "additionalProperties": false,
  "required": ["number", "issuer", "recipient", "invoiceDate", "currency", "lines", "status"],
  "properties": {
    "number": {"type": "string", "minLength": 1},
    "invoiceDate": {"type": "string", "format": "date"},
    "dueDate": {"type": "string", "format": "date"},
    "issuer": {"$ref": "https://abcs.sirvisetti.com/schemas/common/party-reference.schema.json"},
    "recipient": {"$ref": "https://abcs.sirvisetti.com/schemas/common/party-reference.schema.json"},
    "currency": {"type": "string", "pattern": "^[A-Z]{3}$"},
    "purchaseOrder": {"$ref": "https://abcs.sirvisetti.com/schemas/common/business-object-reference.schema.json"},
    "salesOrder": {"$ref": "https://abcs.sirvisetti.com/schemas/common/business-object-reference.schema.json"},
    "lines": {"type": "array", "minItems": 1, "items": {"type": "object", "additionalProperties": false, "required": ["lineNumber", "description", "amount"], "properties": {"lineNumber": {"type": "integer", "minimum": 1}, "description": {"type": "string", "minLength": 1}, "quantity": {"$ref": "https://abcs.sirvisetti.com/schemas/common/quantity.schema.json"}, "unitPrice": {"$ref": "https://abcs.sirvisetti.com/schemas/common/monetary-amount.schema.json"}, "amount": {"$ref": "https://abcs.sirvisetti.com/schemas/common/monetary-amount.schema.json"}}}},
    "amounts": {"type": "object", "additionalProperties": false, "properties": {"subtotal": {"$ref": "https://abcs.sirvisetti.com/schemas/common/monetary-amount.schema.json"}, "tax": {"$ref": "https://abcs.sirvisetti.com/schemas/common/monetary-amount.schema.json"}, "total": {"$ref": "https://abcs.sirvisetti.com/schemas/common/monetary-amount.schema.json"}}},
    "status": {"type": "object", "additionalProperties": false, "required": ["lifecycle", "approval", "settlement"], "properties": {"lifecycle": {"type": "string", "enum": ["draft", "issued", "cancelled"]}, "approval": {"type": "string", "enum": ["not-required", "not-submitted", "pending", "approved", "rejected"]}, "settlement": {"type": "string", "enum": ["unpaid", "partially-paid", "paid", "written-off"]}}}
  }
}