package util

import (
	"fmt"
	"server/modules/backend/values"
	"server/util"
	"strconv"
	"strings"
	"time"
)

// 将查询日期的字符串转化成实际查询日期
func GetQueryDate(start, end string) (string, string) {
	if start == "" {
		start = values.StartDate
	}
	if end == "" {
		end = time.Now().Format("2006-01-02")
	}
	e, _ := time.ParseInLocation("2006-01-02", end, time.Local)
	return start, e.AddDate(0, 0, 1).Format("2006-01-02")
}

// 将查询日期的字符串转化成实际查询时间戳
func GetQueryUnix(start, end string) (int64, int64) {
	var s, e int64
	if start == "" {
		// s = values.StartTime
		s = util.GetZeroTime(time.Now().AddDate(0, -2, 0)).Unix() // 设定默认最多查询两个月
	} else {
		st, _ := time.ParseInLocation("2006-01-02", start, time.Local)
		s = st.Unix()
	}
	if end == "" {
		e = util.GetZeroTime(time.Now().AddDate(0, 0, 1)).Unix()
	} else {
		st, _ := time.ParseInLocation("2006-01-02", end, time.Local)
		e = st.AddDate(0, 0, 1).Unix()
	}
	if s < values.StartTime {
		s = values.StartTime
	}
	now := util.GetZeroTime(time.Now().AddDate(0, 0, 1)).Unix()
	if e > now {
		e = now
	}
	return s, e
}

// 获取分页查询参数,返回开始时间，结束时间，总数
func GetPageQuery(start, end string, page, num int) (int64, int64, int64) {
	su, eu := GetQueryUnix(start, end)
	e := eu - int64(((page-1)*num)*24*60*60)
	s := e - int64((num-1)*24*60*60)
	if s < su {
		s = su
	}
	count := (eu - su) / (24 * 60 * 60)
	return s, e, count
}

// 获取百分比
func GetPer(a, b int64) string {
	if b == 0 {
		return fmt.Sprintf("%d", a) + "%"
	}
	return util.FormatFloat(float64(a*100)/float64(b), 2) + "%"
}

// 获取比例小数点
func GetPoint(a, b int64) string {
	if b == 0 {
		return "0"
	}
	return util.FormatFloat(float64(a)/float64(b), 2)
}

// 获取比例小数点
func GetPoint2(a, b int64) string {
	if b == 0 {
		return "0"
	}
	return util.FormatFloat(float64(a)/float64(b), 5)
}

func AddPerFloat(f float64, s string) float64 {
	num, _ := strconv.ParseFloat(strings.ReplaceAll(s, "%", ""), 64)
	return f + num
}