package controller

import (
	"context"
	"encoding/json"
	"fmt"
	"github.com/gin-gonic/gin"
	"hongze/fms_api/controller/resp"
	"hongze/fms_api/global"
	"hongze/fms_api/models"
	"hongze/fms_api/models/fms"
	"hongze/fms_api/services/alarm_msg"
	"hongze/fms_api/utils"
	"strconv"
	"time"
)

// // StatisticController 统计报告
type StatisticController struct{}

// Home
// @Title 获取首页工作台数据
// @Description 获取首页工作台数据接口
// @Success 200 {object} response.WorktopResp
// @router /statistic [get]
func (this *StatisticController) Statistic(c *gin.Context) {

	//近6收入统计
	var incomeList models.IncomeChartResp
	ch := make(chan models.IncomeChartResp, 1)
	go getIncomeListV2(ch)

	for v := range ch {
		incomeList = v
		close(ch)
	}

	resp.OkData("获取成功", incomeList, c)
}

// 获取收入统计
func getIncomeList(ch chan models.IncomeChartResp) (incomeChart models.IncomeChartResp, err error) {
	defer func() {
		if err != nil {
			go alarm_msg.SendAlarmMsg("获取近两年的收入统计数据异常，Err："+err.Error(), 3)
			//go utils.SendEmail(utils.APPNAME+"获取近12个月的收入统计数据异常："+time.Now().Format("2006-01-02 15:04:05"), err.Error(), utils.EmailSendToUsers)
		}
		ch <- incomeChart
	}()
	todayStr := utils.GetToday("20060102")
	key := "admin:home:fmsIncomeList:" + todayStr

	redisJsonData, redisErr := global.Redis.Get(context.TODO(), key).Result()
	if redisErr != nil {
		var dateSlice []string
		var contractMoneySlice []float64
		var ArrivalMoneySlice []float64

		yearNum := time.Now().Year() - time.Now().AddDate(-2, 0, 0).Year()
		monthNum := time.Now().Month() - 1
		numMonth := yearNum*12 + int(monthNum) //距离2021-01存在多少个月

		for i := numMonth; i >= 0; i-- {
			timeNow, _ := time.Parse("2006-01", time.Now().Format("2006-01"))
			dateSlice = append(dateSlice, timeNow.AddDate(0, -i, 0).Format("06/01"))
			//开始日期
			startDate := timeNow.AddDate(0, -i, 0).Format("2006-01")
			startDate = fmt.Sprint(startDate, "-01")

			//结束日期
			endDateTime := timeNow.AddDate(0, -i+1, 0)
			endDate := endDateTime.Format("2006-01")

			//因为就算是当月的后续事件还没到，也要计入数据统计，所以不做限制到当天处理
			//if endDateTime.After(time.Now()) {
			//	endDate = time.Now().AddDate(0, 0, 1).Format(utils.FormatDate)
			//} else {
			//	endDate = fmt.Sprint(endDate, "-01")
			//}
			endDate = fmt.Sprint(endDate, "-01")
			cond := ` AND invoice_time >= '` + startDate + `' AND invoice_time < '` + endDate + `' `

			item, countErr := models.GetIncomeListCount(cond)
			if countErr != nil && countErr != utils.ErrNoRow {
				err = countErr
				return
			}
			contractMoneySlice = append(contractMoneySlice, item.ContractMoney)
			ArrivalMoneySlice = append(ArrivalMoneySlice, item.ArrivalMoney)
		}
		incomeChart.Title = "开票到款统计图"
		incomeChart.Date = dateSlice
		incomeChart.ContractMoney = contractMoneySlice
		incomeChart.ArrivalMoney = ArrivalMoneySlice

		redisJsonData, err := json.Marshal(incomeChart)
		if err == nil {
			global.Redis.SetEX(context.TODO(), key, string(redisJsonData), time.Minute*30)
		}
	} else {
		err = json.Unmarshal([]byte(redisJsonData), &incomeChart)
		if err != nil {
			fmt.Println("近两年的收入统计数据，json转换失败")
		}
	}

	return
}

func getIncomeListV2(ch chan models.IncomeChartResp) (incomeChart models.IncomeChartResp, err error) {
	defer func() {
		if err != nil {
			global.LOG.Error(err)
			go alarm_msg.SendAlarmMsg("获取近两年的收入统计数据异常，Err："+err.Error(), 3)
			//go utils.SendEmail(utils.APPNAME+"获取近12个月的收入统计数据异常："+time.Now().Format("2006-01-02 15:04:05"), err.Error(), utils.EmailSendToUsers)
		}
		ch <- incomeChart
	}()
	todayStr := utils.GetToday("20060102")
	key := "admin:home:fmsIncomeList:" + todayStr

	redisJsonData, redisErr := global.Redis.Get(context.TODO(), key).Result()
	if redisErr != nil {
		var dateSlice []string
		var contractMoneySlice []float64
		var ArrivalMoneySlice []float64

		yearNum := time.Now().Year() - time.Now().AddDate(-2, 0, 0).Year()
		monthNum := time.Now().Month() - 1
		numMonth := yearNum*12 + int(monthNum) //距离2021-01存在多少个月

		for i := numMonth; i >= 0; i-- {
			timeNow, _ := time.Parse("2006-01", time.Now().Format("2006-01"))
			dateSlice = append(dateSlice, timeNow.AddDate(0, -i, 0).Format("06/01"))
			//开始日期
			startDate := timeNow.AddDate(0, -i, 0).Format("2006-01")
			startDate = fmt.Sprint(startDate, "-01")

			//结束日期
			endDateTime := timeNow.AddDate(0, -i+1, -1)
			endDate := endDateTime.Format(utils.FormatDate)

			//因为就算是当月的后续事件还没到，也要计入数据统计，所以不做限制到当天处理
			//if endDateTime.After(time.Now()) {
			//	endDate = time.Now().AddDate(0, 0, 1).Format(utils.FormatDate)
			//} else {
			//	endDate = fmt.Sprint(endDate, "-01")
			//}

			cond := `1 = 1`
			pars := make([]interface{}, 0)

			st := fmt.Sprint(startDate, " 00:00:00")
			ed := fmt.Sprint(endDate, " 23:59:59")
			cond += ` AND ((c.invoice_time BETWEEN ? AND ?) or (d.invoice_time BETWEEN ? AND ?))`
			pars = append(pars, st, ed, st, ed)

			summaryIds, e := fms.GetInvoicePaymentCensusSummaryDataIds(cond, pars)
			if e != nil {
				return
			}

			// 开票到款金额合计(换算后)
			var invoiceTotal, paymentTotal float64

			if len(summaryIds) > 0 {
				//amountTotalCond := `a.id IN ?`
				amountTotalCond := `a.id IN ? AND (b.invoice_time BETWEEN ? AND ?)`
				amountTotalPars := make([]interface{}, 0)
				amountTotalPars = append(amountTotalPars, summaryIds, st, ed)
				invoiceSum, e := fms.GetContractSummaryInvoicePaymentAmountTotal(amountTotalCond, amountTotalPars, 1)
				if e != nil {
					return
				}
				invoiceTotal, _ = strconv.ParseFloat(fmt.Sprintf("%.2f", invoiceSum), 64)
				paymentSum, e := fms.GetContractSummaryInvoicePaymentAmountTotal(amountTotalCond, amountTotalPars, 2)
				if e != nil {
					return
				}
				paymentTotal, _ = strconv.ParseFloat(fmt.Sprintf("%.2f", paymentSum), 64)
			}

			contractMoneySlice = append(contractMoneySlice, invoiceTotal)
			ArrivalMoneySlice = append(ArrivalMoneySlice, paymentTotal)
		}
		incomeChart.Title = "开票到款统计图"
		incomeChart.Date = dateSlice
		incomeChart.ContractMoney = contractMoneySlice
		incomeChart.ArrivalMoney = ArrivalMoneySlice

		redisJsonData, err := json.Marshal(incomeChart)
		if err == nil {
			global.Redis.SetEX(context.TODO(), key, string(redisJsonData), time.Minute*30)
		}
	}else {
		err = json.Unmarshal([]byte(redisJsonData), &incomeChart)
		if err != nil {
			fmt.Println("近两年的收入统计数据，json转换失败")
		}
	}

	return
}