type DailyAllTierStats map[string]lastDayTierStats

func (l DailyAllTierStats) merge(m DailyAllTierStats) {
	for tier, st := range m {
		l[tier] = l[tier].merge(st)
	}
}

func (l DailyAllTierStats) addToTierInfo(tierInfos []madmin.TierInfo) []madmin.TierInfo {
	for i := range tierInfos {
		lst, ok := l[tierInfos[i].Name]
		if !ok {
			continue
		}
		for hr, st := range lst.Bins {

		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	tierStats := dui.tierStats()
	dailyStats := globalNotificationSys.GetLastDayTierStats(ctx)
	tierStats = dailyStats.addToTierInfo(tierStats)

	data, err := json.Marshal(tierStats)
	if err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}
	writeSuccessResponseJSON(w, data)