package utils

import (
	"database/sql"
	"time"
)

type timeUtil interface {
	// TimeNowUTC Use it everywhere, when you need current time.
	TimeNowUTC() time.Time

	// DeletedNullTime returns empty sql.NullTime struct.
	DeletedNullTime() sql.NullTime

	// NullTimeNowUTC returns valid sql.NullTime struct with current time in UTC.
	NullTimeNowUTC() sql.NullTime

	// NullTimeFromNow converts time.Time to valid sql.NullTime struct.
	NullTimeFromNow(now time.Time) sql.NullTime
}

func (h *Handler) TimeNowUTC() time.Time {
	return time.Now().UTC()
}

func (h *Handler) DeletedNullTime() sql.NullTime {
	return sql.NullTime{Time: time.Time{}, Valid: false}
}

func (h *Handler) NullTimeNowUTC() sql.NullTime {
	return sql.NullTime{Time: h.TimeNowUTC(), Valid: true}
}

func (h *Handler) NullTimeFromNow(now time.Time) sql.NullTime {
	return sql.NullTime{Time: now, Valid: true}
}