package common

import (
	"math"

	"github.com/gogf/gf/v2/errors/gerror"
)

func validateTrafficCutoffConfig(status int, threshold float64) error {
	if status < 0 || status > 2 {
		return gerror.New("达量断网配置状态无效")
	}
	if threshold < 0 {
		return gerror.New("达量断网阈值不能小于0")
	}
	if status == 0 && threshold != 0 {
		return gerror.New("未配置达量断网时阈值必须为0")
	}
	if status == 1 && threshold <= 0 {
		return gerror.New("开启达量断网时阈值必须大于0")
	}
	rounded := math.Round(threshold*1000) / 1000
	if math.Abs(threshold-rounded) > 0.0000001 {
		return gerror.New("达量断网阈值最多保留3位小数")
	}
	return nil
}