package models

import (
	"fmt"
	"github.com/go-xorm/xorm"
	"lapp_-wy/utils"
	"strings"
	"time"
)

type Chargeallocationtab struct {
	Cid                int     `json:"cid" xorm:"not null pk INT(4)"`
	Chargeallocationnr int     `json:"chargeallocationnr" xorm:"not null pk INT(4)"`
	Chargenr           int     `json:"chargenr" xorm:"INT(4)"`
	Allocateyear       int     `json:"allocateyear" xorm:"INT(4)"`
	Allocatemonth      int     `json:"allocatemonth" xorm:"INT(2)"`
	Allocateexpense    float64 `json:"allocateexpense" xorm:"DECIMAL(10,2)"`
	Createtime         string  `json:"createtime" xorm:"VARCHAR(14)"`
	Lastmodifytime     string  `json:"lastmodifytime" xorm:"VARCHAR(20)"`
	Lastmodifyby       string  `json:"lastmodifyby" xorm:"VARCHAR(20)"`
}

func (t *Chargeallocationtab) TableName() string {
	return "chargeallocationtab"
}

/***
*分摊算法:递归
*逻辑:把跨年的费用分摊到每年，
*@param:begdate   开始时间
*@param:enddate   结束时间
*@param:money     分摊金额
*@param:chargenr  费用单号
***********/
func ChargeDiGui(session *xorm.Session, cid int, chargenr int, begdate string, enddate string, money float64) bool {
	//计算当前开始时间的最后一天
	begtime, _ := utils.TimeParseyyyyMMdd(begdate)
	lastYearDay := utils.TimeReturnLastYear(begtime)
	//比较日期，退出条件
	t1, _ := utils.TimeParseyyyyMMdd(lastYearDay)
	t2, _ := utils.TimeParseyyyyMMdd(enddate)
	ok := t1.After(t2)
	if ok {
		//生成流水号
		Cnr := new(Snrtab)
		Cnr.Cid = cid
		orderId, err := Cnr.GetNextSnr("Yearnr")
		if err != nil {
			return false
		}

		//直接添加费用记录
		info := new(Chargeallocationtab)
		info.Cid = cid
		info.Chargenr = chargenr
		info.Createtime = utils.TimeFormat(time.Now(), "yyyyMMddHHmmss")
		info.Lastmodifytime = utils.TimeFormat(time.Now(), "yyyyMMddHHmmss")
		info.Allocateexpense = money
		info.Allocateyear = t1.Year()
		info.Chargeallocationnr = utils.ValueToInt(orderId, 0)
		_, err = session.Table("chargeallocationtab").Insert(info)
		if err != nil {
			return false
		}
		return true
	}
	//计算分摊比例金额，添加记录，并进入下一次递归循环
	allday := utils.TimeSub(begtime, t2) //总天数
	nowday := utils.TimeSub(begtime, t1) //当前年份总天数
	rate := utils.ValueToFloat(nowday, 0.0) / utils.ValueToFloat(allday, 0.0)
	temMoney := money * rate //当前金额
	tem := fmt.Sprintf("%0.0f", temMoney)
	nowMoney := utils.ValueToFloat(tem, 0.0)
	remainMoney := money - nowMoney //剩余金额
	//生成流水号
	Cnr := new(Snrtab)
	Cnr.Cid = cid
	orderId, err := Cnr.GetNextSnr("Yearnr")
	if err != nil {
		return false
	}

	info := new(Chargeallocationtab)
	info.Cid = cid
	info.Chargenr = chargenr
	info.Createtime = utils.TimeFormat(time.Now(), "yyyyMMddHHmmss")
	info.Lastmodifytime = utils.TimeFormat(time.Now(), "yyyyMMddHHmmss")
	info.Allocateexpense = nowMoney
	info.Allocateyear = t1.Year()
	info.Chargeallocationnr = utils.ValueToInt(orderId, 0)
	_, err = session.Table("chargeallocationtab").Insert(info)
	if err != nil {
		return false
	}
	//递归循环
	begYear := t1.AddDate(0, 0, 1)
	begYearDay := utils.TimeFormat(begYear, "yyyy-MM-dd")
	res := ChargeDiGui(session, cid, chargenr, begYearDay, enddate, remainMoney)
	if !res {
		return false
	}
	return true
}

/***
*逻辑:把跨年的费用分摊到每年每月，
*@param:begdate   开始时间
*@param:enddate   结束时间
*@param:money     分摊金额，保留四位小数
*@param:chargenr  费用单号
***********/
func ChargeShareTheMonth(session *xorm.Session, cid int, chargenr int, begdate string, enddate string, money float64) bool {
	//计算出一共有多少个年月的数组
	fmt.Println("begdate:", begdate, "enddate:", enddate)
	months := utils.SelectMonth(begdate, enddate)
	//计算出总数
	lenth := len(months)
	if lenth == 0 {
		fmt.Println("month here error:")

		return false
	}
	monthAmt := money / float64(lenth)
	for _, v := range months {
		//分割年月
		yam := strings.Split(v, "/")
		year := yam[0]
		month := yam[1]
		//生成流水号
		Cnr := new(Snrtab)
		Cnr.Cid = cid
		orderId, err := Cnr.GetNextSnr("Yearnr")
		if err != nil {
			fmt.Println("here error:", err)
			return false
		}

		//直接添加费用记录
		info := new(Chargeallocationtab)
		info.Cid = cid
		info.Chargenr = chargenr
		info.Createtime = utils.TimeFormat(time.Now(), "yyyyMMddHHmmss")
		info.Lastmodifytime = utils.TimeFormat(time.Now(), "yyyyMMddHHmmss")
		info.Allocateexpense = monthAmt
		info.Allocateyear = utils.ValueToInt(year, 0)
		info.Allocatemonth = utils.ValueToInt(month, 0)
		info.Chargeallocationnr = utils.ValueToInt(orderId, 0)
		_, err = session.Table("chargeallocationtab").Insert(info)
		if err != nil {
			continue
		}
	}
	return true
}