github.com/alibabacloud-go/tea@v1.3.10/dara/date.go (about)

     1  package dara
     2  
     3  import (
     4  	"fmt"
     5  	"strings"
     6  	"time"
     7  )
     8  
     9  type Date struct {
    10  	date time.Time
    11  }
    12  
    13  func NewDate(dateInput string) (*Date, error) {
    14  	var t time.Time
    15  	var err error
    16  	// 解析输入时间，如果输入格式不对，返回错误
    17  	formats := []string{
    18  		"2006-01-02 15:04:05",
    19  		"2006-01-02 15:04:05.999999999 -0700 MST",
    20  		"2006-01-02T15:04:05-07:00",
    21  		"2006-01-02T15:04:05Z",
    22  	}
    23  
    24  	for _, format := range formats {
    25  		t, err = time.Parse(format, dateInput)
    26  		if err == nil {
    27  			return &Date{date: t}, nil
    28  		}
    29  	}
    30  
    31  	return nil, fmt.Errorf("unable to parse date: %v", dateInput)
    32  }
    33  
    34  func (t *Date) Format(layout string) string {
    35  
    36  	layout = strings.Replace(layout, "yyyy", "2006", 1)
    37  	layout = strings.Replace(layout, "MM", "01", 1)
    38  	layout = strings.Replace(layout, "dd", "02", 1)
    39  	// layout = strings.Replace(layout, "HH", "15", 1)
    40  	layout = strings.Replace(layout, "hh", "15", 1)
    41  	layout = strings.Replace(layout, "mm", "04", 1)
    42  	layout = strings.Replace(layout, "ss", "05", 1)
    43  	layout = strings.Replace(layout, "a", "PM", 1)
    44  	layout = strings.Replace(layout, "EEEE", "Monday", 1)
    45  	layout = strings.Replace(layout, "E", "Mon", 1)
    46  	return t.date.Format(layout)
    47  }
    48  
    49  func (t *Date) Unix() int64 {
    50  	return t.date.Unix()
    51  }
    52  
    53  func (t *Date) UTC() string {
    54  	return t.date.UTC().Format("2006-01-02 15:04:05.000000000 -0700 MST")
    55  }
    56  
    57  func (t *Date) Sub(amount int, unit string) *Date {
    58  	var duration time.Duration
    59  	switch unit {
    60  	case "second", "seconds":
    61  		duration = time.Duration(-amount) * time.Second
    62  	case "minute", "minutes":
    63  		duration = time.Duration(-amount) * time.Minute
    64  	case "hour", "hours":
    65  		duration = time.Duration(-amount) * time.Hour
    66  	case "day", "days":
    67  		duration = time.Duration(-amount) * 24 * time.Hour
    68  	case "week", "weeks":
    69  		duration = time.Duration(-amount) * 7 * 24 * time.Hour
    70  	case "month", "months":
    71  		return &Date{date: t.date.AddDate(0, -amount, 0)}
    72  	case "year", "years":
    73  		return &Date{date: t.date.AddDate(-amount, 0, 0)}
    74  	default:
    75  		return nil
    76  	}
    77  	newDate := t.date.Add(duration)
    78  	return &Date{date: newDate}
    79  }
    80  
    81  func (t *Date) Add(amount int, unit string) *Date {
    82  	var duration time.Duration
    83  	switch unit {
    84  	case "second", "seconds":
    85  		duration = time.Duration(amount) * time.Second
    86  	case "minute", "minutes":
    87  		duration = time.Duration(amount) * time.Minute
    88  	case "hour", "hours":
    89  		duration = time.Duration(amount) * time.Hour
    90  	case "day", "days":
    91  		duration = time.Duration(amount) * 24 * time.Hour
    92  	case "week", "weeks":
    93  		duration = time.Duration(amount) * 7 * 24 * time.Hour
    94  	case "month", "months":
    95  		return &Date{date: t.date.AddDate(0, amount, 0)}
    96  	case "year", "years":
    97  		return &Date{date: t.date.AddDate(amount, 0, 0)}
    98  	default:
    99  		return nil
   100  	}
   101  
   102  	newDate := t.date.Add(duration)
   103  	return &Date{date: newDate}
   104  }
   105  
   106  func (t *Date) Diff(amount string, diffDate *Date) int64 {
   107  	switch amount {
   108  	case "second", "seconds":
   109  		return int64(t.date.Sub(diffDate.date).Seconds())
   110  	case "minute", "minutes":
   111  		return int64(t.date.Sub(diffDate.date).Minutes())
   112  	case "hour", "hours":
   113  		return int64(t.date.Sub(diffDate.date).Hours())
   114  	case "day", "days":
   115  		return int64(t.date.Sub(diffDate.date).Hours() / 24)
   116  	case "week", "weeks":
   117  		return int64(t.date.Sub(diffDate.date).Hours() / (24 * 7))
   118  	case "month", "months":
   119  		return int64(diffDate.date.Year()*12 + int(diffDate.date.Month()) - (t.date.Year()*12 + int(t.date.Month())))
   120  	case "year", "years":
   121  		return int64(t.date.Year() - diffDate.date.Year())
   122  	default:
   123  		return 0
   124  	}
   125  }
   126  
   127  func (t *Date) Hour() int {
   128  	return t.date.Hour()
   129  }
   130  
   131  func (t *Date) Minute() int {
   132  	return t.date.Minute()
   133  }
   134  
   135  func (t *Date) Second() int {
   136  	return t.date.Second()
   137  }
   138  
   139  func (t *Date) Month() int {
   140  	return int(t.date.Month())
   141  }
   142  
   143  func (t *Date) Year() int {
   144  	return t.date.Year()
   145  }
   146  
   147  func (t *Date) DayOfMonth() int {
   148  	return t.date.Day()
   149  }
   150  
   151  func (t *Date) DayOfWeek() int {
   152  	weekday := int(t.date.Weekday())
   153  	if weekday == 0 {
   154  		return 7 // Sunday
   155  	}
   156  	return weekday
   157  }
   158  
   159  func (t *Date) WeekOfYear() int {
   160  	_, week := t.date.ISOWeek()
   161  	return week
   162  }