/*
@Time : 2019-07-08 11:12
@Author : zr
*/
package utils

import (
	"math"
	"math/rand"
	"time"
	"video_course/errors"
)

func TimeFormatter() string {
	return "2006-01-02 15:04:05"
}
func TimeFormatterDate() string {
	return "2006-01-02"
}

func TimeStdQueryBegin(stdTimeStr string) (newTime time.Time, err error) {
	if stdTimeStr == "" {
		return time.Parse(TimeFormatter(), "2000-01-01 00:00:00")
	}

	newTime, err = time.Parse(TimeFormatter(), stdTimeStr)
	if err != nil {
		return newTime, err
	}
	newTimeStr := newTime.Format("2006-01-02") + " 00:00:00"

	return time.Parse(TimeFormatter(), newTimeStr)
}
func TimeStdQueryEnd(stdTimeStr string) (newTime time.Time, err error) {
	if stdTimeStr == "" {
		newTime = time.Now()
	} else {
		newTime, err = time.Parse(TimeFormatter(), stdTimeStr)
		if err != nil {
			return newTime, err
		}
	}
	newTimeStr := newTime.Format("2006-01-02") + " 23:59:59"
	return time.Parse(TimeFormatter(), newTimeStr)
}

func TimeDayBegin(day time.Time) time.Time {
	dayBeginStr := day.Format("2006-01-02") + " 00:00:00"
	dayBegin, _ := time.Parse(TimeFormatter(), dayBeginStr)
	return dayBegin
}
func TimeTodayBegin() time.Time {
	timeNow := time.Now()
	dayBeginStr := timeNow.Format("2006-01-02") + " 00:00:00"
	dayBegin, _ := time.Parse(TimeFormatter(), dayBeginStr)
	return dayBegin
}

func TimeDayEnd(day time.Time) time.Time {
	dayStr := day.Format("2006-01-02") + " 23:59:59"
	day, _ = time.Parse(TimeFormatter(), dayStr)
	return day
}
func RandomInt(n int) int {
	min := int(math.Pow(10, float64(n-1)))
	max := min*9 - 1

	rand1 := rand.New(rand.NewSource(time.Now().UnixNano()))
	code := rand1.Intn(max) + min
	return code
}

func GetAgeByBirthday(b time.Time) (age int) {
	//b, err := time.Parse(TimeFormatter(), birthday)
	//if err != nil {
	//	return 0, err
	//}
	year := b.Year()
	month := int(b.Month())
	day := b.Day()

	nowYear := time.Now().Year()
	nowMonth := int(time.Now().Month())
	nowDay := time.Now().Day()

	if nowYear < year {
		panic(errors.ErrBirthday)
	}
	age = nowYear - year
	if month > nowMonth { // 当生日月份>当前月份的时候，年龄-1
		age = age - 1
	}
	if month == nowMonth && day > nowDay {
		age = age - 1 // 当生日月份与当前月份相等的时候，如果生日日期大于当天日期，则生日未到，年龄-1
	}

	return
}

func GetStaticHrByAge(age int) (staticHr int) {
	switch age {
	case 2:
		staticHr = 80
	case 3:
		staticHr = 80
	case 4:
		staticHr = 80
	case 5:
		staticHr = 75
	case 6:
		staticHr = 75
	case 7:
		staticHr = 70
	case 8:
		staticHr = 70
	case 9:
		staticHr = 70
	default:
		if age >= 10 {
			staticHr = 60
		} else {
			panic(errors.ErrStaticHr)
		}
	}
	return
}