package controllers

import (
	"encoding/json"
	"fmt"
	"hongze/hongze_edb_lib/logic"
	"hongze/hongze_edb_lib/models"
	"hongze/hongze_edb_lib/utils"
	"strconv"
	"strings"
	"time"
)

// PredictController 预测指标
type PredictController struct {
	BaseAuthController
}

// Save
// @Title 新增/编辑预测指标运算接口
// @Description 新增预测指标运算接口
// @Success 200 {object} models.EdbInfoCalculateSaveReq
// @router /save [post]
func (this *PredictController) Save() {
	br := new(models.BaseResponse).Init()
	defer func() {
		this.Data["json"] = br
		this.ServeJSON()
	}()
	var req models.AddPredictEdbInfoReq
	err := json.Unmarshal(this.Ctx.Input.RequestBody, &req)
	if err != nil {
		br.Msg = "参数解析异常！"
		br.ErrMsg = "参数解析失败，Err:" + err.Error()
		return
	}
	if req.EdbInfoId <= 0 {
		addPredict(br, req)
	} else {
		editPredict(br, req)
	}
}

// AddPredictCalculate 添加预测指标运算
func addPredict(br *models.BaseResponse, req models.AddPredictEdbInfoReq) {
	//加入缓存机制，避免创建同一个名称的指标 start
	redisKey := fmt.Sprint("predict_edb_info:calculate:batch:save:", utils.DATA_SOURCE_PREDICT, ":", req.EdbName)
	isExist := utils.Rc.IsExist(redisKey)
	if isExist {
		br.Msg = "指标正在处理,请勿重复提交"
		return
	} else {
		//设置3分钟缓存
		utils.Rc.SetNX(redisKey, 1, time.Second*300)
		defer func() {
			_ = utils.Rc.Delete(redisKey)
		}()
	}

	// 添加指标
	edbInfo, err, errMsg := logic.AddPredictEdbInfo(req.SourceEdbInfoId, req.ClassifyId, req.EdbName, req.RuleList, req.AdminId, req.AdminName)
	if err != nil {
		br.Msg = errMsg
		br.ErrMsg = err.Error()
		return
	}
	resp := models.AddEdbInfoResp{
		EdbInfoId:  edbInfo.EdbInfoId,
		UniqueCode: edbInfo.UniqueCode,
	}
	br.Ret = 200
	br.Success = true
	br.Msg = "保存成功"
	br.Data = resp
	br.IsAddLog = true
}

// editPredictCalculate 编辑预测指标运算
func editPredict(br *models.BaseResponse, req models.AddPredictEdbInfoReq) {
	req.EdbName = strings.Trim(req.EdbName, " ")
	//加入缓存机制，避免创建同一个名称的指标 start
	redisKey := fmt.Sprint("predict_edb_info:calculate:batch:save:", utils.DATA_SOURCE_PREDICT, ":", req.EdbName)
	isExist := utils.Rc.IsExist(redisKey)
	if isExist {
		br.Msg = "指标正在处理,请勿重复提交"
		return
	} else {
		//设置3分钟缓存
		utils.Rc.SetNX(redisKey, 1, time.Second*300)
		defer func() {
			_ = utils.Rc.Delete(redisKey)
		}()
	}

	// 编辑指标
	edbInfo, err, errMsg := logic.EditPredictEdbInfo(req.EdbInfoId, req.ClassifyId, req.EdbName, req.RuleList)
	if err != nil {
		br.Msg = errMsg
		br.ErrMsg = err.Error()
		return
	}
	resp := models.AddEdbInfoResp{
		EdbInfoId:  edbInfo.EdbInfoId,
		UniqueCode: edbInfo.UniqueCode,
	}
	br.Ret = 200
	br.Success = true
	br.Msg = "保存成功"
	br.Data = resp
	br.IsAddLog = true
}

// Refresh
// @Title 刷新计算指标接口
// @Description 刷新计算指标接口
// @Success 200 {object} models.RefreshEdbInfoReq
// @router /refresh [post]
func (this *PredictController) Refresh() {
	br := new(models.BaseResponse).Init()
	var cacheKey string
	defer func() {
		this.Data["json"] = br
		this.ServeJSON()
	}()
	var req models.RefreshEdbInfoReq
	err := json.Unmarshal(this.Ctx.Input.RequestBody, &req)
	if err != nil {
		br.Msg = "参数解析异常！"
		br.ErrMsg = "参数解析失败，Err:" + err.Error()
		return
	}
	if req.EdbCode == "" {
		br.Msg = "请输入指标编码！"
		br.ErrMsg = "请输入指标编码，指标编码为空"
		return
	}
	if req.EdbInfoId <= 0 {
		br.Msg = "请输入指标ID！"
		br.ErrMsg = "请输入指标ID"
		return
	}
	edbInfo, err := models.GetEdbInfoById(req.EdbInfoId)
	if err != nil {
		br.Msg = "指标不存在！"
		br.ErrMsg = "指标不存在"
		return
	}

	cacheKey = utils.CACHE_EDB_DATA_REFRESH + strconv.Itoa(edbInfo.Source) + "_" + req.EdbCode
	if utils.Rc.IsExist(cacheKey) {
		br.Ret = 501
		br.Success = true
		br.Msg = "系统处理中，请稍后重试"
		br.IsSendEmail = false
	}

	utils.Rc.SetNX(cacheKey, 1, 1*time.Minute)
	defer func() {
		_ = utils.Rc.Delete(cacheKey)

	}()
	startDate := req.StartDate
	var errMsg string
	edbInfoId := edbInfo.EdbInfoId
	source := edbInfo.Source

	var latestDateStr string // 最近实际数据的日期
	var latestValue float64  // 最近实际数据的值
	switch source {
	case utils.DATA_SOURCE_PREDICT_CALCULATE:
		//startDate = edbInfo.StartDate
		//sTime, err := time.Parse(utils.FormatDate, edbInfo.EndDate)
		//if err != nil {
		//	return
		//}
		//startDate = sTime.Format(utils.FormatDate)
		startDate = ""
		var edbInfoIdBytes []string
		calculateMap, err := models.GetEdbInfoCalculateDetailList(edbInfo.EdbInfoId)
		if err != nil {
			errMsg = "GetEdbInfoCalculateDetail Err:" + err.Error()
			break
		}
		var formulaStr string
		edbInfoList := make([]*models.EdbInfo, 0)

		for _, v := range calculateMap {
			formulaStr += v.FromTag + ","
			edbInfoIdBytes = append(edbInfoIdBytes, v.FromTag)
			edbInfo, _ := models.GetEdbInfoById(v.FromEdbInfoId)
			edbInfoList = append(edbInfoList, edbInfo)
		}
		latestDateStr, latestValue, err = models.RefreshAllPredictCalculate(edbInfoList, edbInfo.EdbInfoId, source, edbInfo.EdbCode, edbInfo.CalculateFormula, startDate, edbInfoIdBytes)
		if err != nil && err.Error() != utils.ErrNoRow() {
			errMsg = "RefreshCalculate Err:" + err.Error()
			break
		}
	case utils.DATA_SOURCE_PREDICT_CALCULATE_TBZ: //刷新同比值
		calculateTbz, err := models.GetEdbInfoCalculateMappingDetail(edbInfoId)
		if err != nil {
			errMsg = "GetEdbInfoCalculateTbzDetail Err:" + err.Error()
			break
		}
		fromEdbInfo, err := models.GetEdbInfoById(calculateTbz.FromEdbInfoId)
		if err != nil {
			errMsg = "GetEdbInfoById Err:" + err.Error()
			break
		}
		startDate = edbInfo.StartDate
		latestDateStr, latestValue, err = models.RefreshAllPredictCalculateTbz(edbInfoId, source, fromEdbInfo, calculateTbz.EdbCode, startDate)
		if err != nil && err.Error() != utils.ErrNoRow() {
			errMsg = "RefreshAllCalculateTbz Err:" + err.Error()
			break
		}
	case utils.DATA_SOURCE_PREDICT_CALCULATE_TCZ: //同差值
		calculateTcz, err := models.GetEdbInfoCalculateMappingDetail(edbInfoId)
		if err != nil {
			errMsg = "GetEdbInfoCalculateTczDetail Err:" + err.Error()
			break
		}
		fromEdbInfo, err := models.GetEdbInfoById(calculateTcz.FromEdbInfoId)
		if err != nil {
			errMsg = "GetEdbInfoById Err:" + err.Error()
			break
		}
		startDate = edbInfo.StartDate
		latestDateStr, latestValue, err = models.RefreshAllPredictCalculateTcz(edbInfoId, source, fromEdbInfo, calculateTcz.EdbCode, startDate)
		if err != nil && err.Error() != utils.ErrNoRow() {
			errMsg = "RefreshCalculateTcz Err:" + err.Error()
			break
		}
	default:
		br.Msg = "来源异常，请联系相关开发！"
		br.ErrMsg = "来源异常，请联系相关开发"
		return
	}
	if errMsg != `` {
		br.Msg = "刷新指标失败！"
		br.ErrMsg = "刷新指标失败，err:" + errMsg
		return
	}

	// 更新指标最大最小值
	err, errMsg = models.UnifiedModifyPredictEdbInfoMaxAndMinInfo(edbInfo, latestDateStr, latestValue)
	if err != nil {
		br.Msg = errMsg
		br.ErrMsg = err.Error()
		return
	}

	br.Ret = 200
	br.Success = true
	br.Msg = "获取成功"
}