package time

import (
	"database/sql/driver"
	"time"
)

type Time time.Time

const (
	timeFormat = "2006-01-02 15:04:05"
)

func (t *Time) UnmarshalJSON(data []byte) (err error) {
	now, err := time.ParseInLocation(`"`+timeFormat+`"`, string(data), time.Local)
	*t = Time(now)
	return
}

func (t Time) MarshalJSON() ([]byte, error) {
	b := make([]byte, 0, len(timeFormat)+2)
	b = append(b, '"')
	b = time.Time(t).AppendFormat(b, timeFormat)
	b = append(b, '"')
	return b, nil
}

func (t Time) GobEncode() ([]byte, error) {
	return t.Time().MarshalBinary()
}

func (t Time) String() string {
	return time.Time(t).Format(timeFormat)
}

func (t Time) Time() time.Time {
	return time.Time(t)
}

func (t Time) IsZero() bool {
	return t.Time().IsZero()
}

func (t Time) After(u Time) bool {
	return t.Time().After(u.Time())
}

func (t Time) Before(u Time) bool {
	return t.Time().Before(u.Time())
}

func (t Time) Equal(u Time) bool {
	return t.Time().Equal(u.Time())
}

func (t Time) Add(d time.Duration) Time {
	return Time(t.Time().Add(d))
}

func (t Time) AddDate(years int, months int, days int) Time {
	return Time(t.Time().AddDate(years, months, days))
}

func (t Time) Sub(u Time) time.Duration {
	return t.Time().Sub(u.Time())
}

// 实现sql驱动
func (t *Time) Scan(value interface{}) error {
	switch s := value.(type) {
	case time.Time:
		*t = Time(s)
	}
	return nil
}

//实现sql驱动
func (t Time) Value() (driver.Value, error) {
	return t.Time(), nil
}

func Now() Time {
	t := time.Now()
	return Time(t)
}