package options

import (
	"errors"
)

type Int64TranscoderOption struct {
	DefaultValue int64
	Required     bool
	Max          int64
	Min          int64
}

func (option *Int64TranscoderOption) IsRequired() bool {
	return option.Required
}

func (option *Int64TranscoderOption) Default() interface{} {
	return option.DefaultValue
}

func (option *Int64TranscoderOption) Validate(value interface{}) (err error) {
	intValue, ok := value.(int64)
	if !ok {
		err = errors.New("value is not a 64-bit integer")
		return
	}

	if intValue > option.Max {
		err = errors.New("number is too big")
		return
	}

	if intValue < option.Min {
		err = errors.New("number is too small")
		return
	}

	err = nil
	return
}