{
  "title": "SignNow Document Structure",
  "description": "Structural documentation for the SignNow Document resource and its nested components.",
  "version": "2.0",
  "structure": {
    "Document": {
      "description": "A SignNow document submitted for e-signature processing.",
      "fields": {
        "id": {"type": "string", "description": "Unique document identifier (UUID)."},
        "document_name": {"type": "string", "description": "Human-readable document name."},
        "created": {"type": "datetime", "description": "ISO 8601 creation timestamp."},
        "updated": {"type": "datetime", "description": "ISO 8601 last modified timestamp."},
        "user_id": {"type": "string", "description": "Owner's user ID."},
        "origin_document_id": {"type": "string", "description": "Source template ID (if applicable)."},
        "page_count": {"type": "integer", "description": "Number of document pages."},
        "fieldinvite_status": {"type": "enum", "values": ["pending", "fulfilled", "declined", "expired"], "description": "Overall signing invite status."},
        "signing_session_caching": {"type": "boolean", "description": "Session caching enabled flag."},
        "roles": {"type": "array", "items": "Role", "description": "Defined signing roles."},
        "fields": {"type": "array", "items": "Field", "description": "Form fields embedded in document."},
        "requests": {"type": "array", "items": "SigningRequest", "description": "Signing invitations sent."},
        "tags": {"type": "array", "items": "string", "description": "Organizational tags."}
      }
    },
    "Role": {
      "description": "A signing role within a document or template.",
      "fields": {
        "unique_id": {"type": "string", "description": "Role identifier."},
        "name": {"type": "string", "description": "Role display name (e.g., Signer, Approver)."},
        "signing_order": {"type": "integer", "description": "Sequential signing order (1-based)."}
      }
    },
    "Field": {
      "description": "A form field placed on a document page.",
      "fields": {
        "type": {"type": "enum", "values": ["signature", "initials", "text", "date", "checkbox", "dropdown", "radiobutton"]},
        "x": {"type": "number", "description": "X coordinate (pixels from left)."},
        "y": {"type": "number", "description": "Y coordinate (pixels from top)."},
        "width": {"type": "number", "description": "Field width in pixels."},
        "height": {"type": "number", "description": "Field height in pixels."},
        "page_number": {"type": "integer", "description": "Zero-indexed page number."},
        "role_id": {"type": "string", "description": "Signing role assigned to fill this field."},
        "required": {"type": "boolean"},
        "label": {"type": "string", "description": "Field label text."}
      }
    },
    "SigningRequest": {
      "description": "A signature invitation sent to a recipient.",
      "fields": {
        "id": {"type": "string"},
        "signer_email": {"type": "string", "format": "email"},
        "status": {"type": "enum", "values": ["pending", "fulfilled", "declined", "expired"]},
        "created": {"type": "datetime"},
        "updated": {"type": "datetime"}
      }
    },
    "Template": {
      "description": "A reusable document template for e-signature workflows.",
      "fields": {
        "id": {"type": "string"},
        "document_name": {"type": "string"},
        "created": {"type": "datetime"},
        "updated": {"type": "datetime"},
        "roles": {"type": "array", "items": "Role"},
        "fields": {"type": "array", "items": "Field"},
        "page_count": {"type": "integer"}
      }
    }
  }
}