package model

import (
	"database/sql/driver"
	"encoding/json"
)

// ScanJSON scans a database value (nil, []byte, or string) into any JSON-unmarshalable pointer.
func ScanJSON[T any](ptr *T, value any) error {
	if value == nil {
		return nil
	}
	var data []byte
	switch v := value.(type) {
	case []byte:
		data = v
	case string:
		data = []byte(v)
	default:
		return nil
	}
	return json.Unmarshal(data, ptr)
}

// ValueJSON marshals any value to JSON for database storage.
func ValueJSON[T any](val T) (driver.Value, error) {
	return json.Marshal(val)
}