package models

import "encoding/json"

// UnmarshalOrderMapRow extracts the Data sub-object from the server's OrderMap wire format
// {"Fields":[...],"Data":{...}} and unmarshals it into dst.
// If the input is not an OrderMap wrapper, it falls back to direct unmarshal.
func UnmarshalOrderMapRow(data []byte, dst interface{}) error {
	var wrapper struct {
		Data json.RawMessage `json:"Data"`
	}
	if err := json.Unmarshal(data, &wrapper); err != nil {
		return err
	}
	if wrapper.Data == nil {
		return json.Unmarshal(data, dst)
	}
	return json.Unmarshal(wrapper.Data, dst)
}