carbon/season.go
2021-07-23 11:06:32 +08:00

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package carbon
import (
"strings"
"time"
)
// Season 获取当前季节(以气象划分)支持i18n
func (c Carbon) Season() string {
if c.IsInvalid() {
return ""
}
if len(c.Lang.resources) == 0 {
c.Lang.SetLocale(defaultLocale)
}
index := -1
switch {
case c.Month() == 3 || c.Month() == 4 || c.Month() == 5:
index = 0
case c.Month() == 6 || c.Month() == 7 || c.Month() == 8:
index = 1
case c.Month() == 9 || c.Month() == 10 || c.Month() == 11:
index = 2
case c.Month() == 12 || c.Month() == 1 || c.Month() == 2:
index = 3
}
if seasons, ok := c.Lang.resources["seasons"]; ok {
slice := strings.Split(seasons, "|")
return slice[index]
}
return ""
}
// StartOfSeason 本季节开始时间
func (c Carbon) StartOfSeason() Carbon {
if c.IsInvalid() {
return c
}
if c.Month() == 1 || c.Month() == 2 {
c.Time = time.Date(c.Year()-1, time.Month(12), 1, 0, 0, 0, 0, c.Loc)
return c
}
c.Time = time.Date(c.Year(), time.Month(c.Month()/3*3), 1, 0, 0, 0, 0, c.Loc)
return c
}
// EndOfSeason 本季节结束时间
func (c Carbon) EndOfSeason() Carbon {
if c.IsInvalid() {
return c
}
if c.Month() == 1 || c.Month() == 2 {
c.Time = time.Date(c.Year(), time.Month(2), 1, 23, 59, 59, 999999999, c.Loc).AddDate(0, 1, -1)
return c
}
if c.Month() == 12 {
c.Time = time.Date(c.Year()+1, time.Month(2), 1, 23, 59, 59, 999999999, c.Loc).AddDate(0, 1, -1)
return c
}
c.Time = time.Date(c.Year(), time.Month(c.Month()/3*3+2), 1, 23, 59, 59, 999999999, c.Loc).AddDate(0, 1, -1)
return c
}
// IsSpring 是否是春季
func (c Carbon) IsSpring() bool {
if c.IsInvalid() {
return false
}
if c.Month() == 3 || c.Month() == 4 || c.Month() == 5 {
return true
}
return false
}
// IsSummer 是否是夏季
func (c Carbon) IsSummer() bool {
if c.IsInvalid() {
return false
}
if c.Month() == 6 || c.Month() == 7 || c.Month() == 8 {
return true
}
return false
}
// IsAutumn 是否是秋季
func (c Carbon) IsAutumn() bool {
if c.IsInvalid() {
return false
}
if c.Month() == 9 || c.Month() == 10 || c.Month() == 11 {
return true
}
return false
}
// IsWinter 是否是冬季
func (c Carbon) IsWinter() bool {
if c.IsInvalid() {
return false
}
if c.Month() == 12 || c.Month() == 1 || c.Month() == 2 {
return true
}
return false
}