package model

import (
	"encoding/json"

	"gorm.io/datatypes"
)

// JSONMap is a convenience type for JSON map fields used in request DTOs.
// Maps to datatypes.JSON for GORM storage.
type JSONMap map[string]interface{}

// ToDatatypesJSON converts a JSONMap to datatypes.JSON for GORM storage.
// Returns nil if the input is nil or empty.
func ToDatatypesJSON(m *JSONMap) datatypes.JSON {
	if m == nil || len(*m) == 0 {
		return datatypes.JSON("{}")
	}
	b, err := json.Marshal(*m)
	if err != nil {
		return datatypes.JSON("{}")
	}
	return datatypes.JSON(b)
}