package service

import (
	"encoding/json"
	"errors"
	"github.com/sirupsen/logrus"
	"reflect"
	"time"
	"youngee_b_api/app/dao"
	"youngee_b_api/app/entity"
	"youngee_b_api/app/util"
	"youngee_b_api/app/vo"
)

type SelectionInfoService struct{}

//func (s *SelectionInfoService) GetSelectionInfo(ctx *gin.Context, selectionId string) (*http_model.SelectionDetail, error) {
//	selectionDetail := http_model.SelectionDetail{}
//	selectionInfo, err := db.GetSelectionById(ctx, selectionId)
//
//	if err != nil {
//		logrus.WithContext(ctx).Errorf("[selectionDB service] call GetSelectionInfo error,err:%+v", err)
//		return nil, err
//	}
//	selectionBriefInfo, err := db.GetSelectionBriefInfo(ctx, selectionId)
//	if err != nil {
//		logrus.WithContext(ctx).Errorf("[selectionDB service] call GetSelectionBriefInfo error,err:%+v", err)
//		return nil, err
//	}
//	selectionExampleInfo, err := db.GetSelectionExampleInfo(ctx, selectionId)
//	if err != nil {
//		logrus.WithContext(ctx).Errorf("[selectionDB service] call GetSelectionExampleInfo error,err:%+v", err)
//		return nil, err
//	}
//	productInfo, err := db.GetProductInfoBySelectionId(ctx, selectionId)
//	if err != nil {
//		logrus.WithContext(ctx).Errorf("[selectionDB service] call GetProductInfo error,err:%+v", err)
//		return nil, err
//	}
//	productPhotoInfo, err := db.GetProductPhotoInfoBySelectionId(ctx, selectionId)
//	if err != nil {
//		logrus.WithContext(ctx).Errorf("[selectionDB service] call GetProductPhotoInfo error,err:%+v", err)
//		return nil, err
//	}
//	selectionDetail.SelectionBrief = selectionBriefInfo
//	selectionDetail.SelectionInfo = selectionInfo
//	selectionDetail.SelectionExample = selectionExampleInfo
//	selectionDetail.ProductInfo = productInfo
//	selectionDetail.ProductPhotoInfo = productPhotoInfo
//	return &selectionDetail, nil
//}

// 创建带货任务
func (s SelectionInfoService) CreateSelectionInfo(param *vo.SelectionInfoCreateParam) (*string, error) {
	// a) 生成选品id
	selectionId := util.GetSelectionID()
	// b) 查找关联商品信息
	product, err := dao.ProductDAO{}.GetProductByID(param.ProductId)
	if err != nil {
		return nil, err
	}
	if product == nil {
		return nil, errors.New("未找到关联商品")
	}
	productPhotos, err := dao.ProductPhotoDAO{}.GetProductPhotoByProductID(param.ProductId)
	productInfoToJson, _ := json.Marshal(product)
	productPhotosToJson, _ := json.Marshal(productPhotos)
	// c) 选品名称
	//selectionName := product.ProductName
	// d)创建选品
	// 获取定时任务配置
	infoAutoTask := entity.InfoAutoTask{}
	infoAutoTask = dao.InfoAutoTaskDao{}.GetAutoTaskLast(param.EnterpriseId)
	t := time.Now()
	newSelection := entity.SelectionInfo{
		SelectionStatus:  1,
		SelectionID:      selectionId,
		ProductID:        param.ProductId,
		ProductCategory:  product.ProductCategory,
		EnterpriseID:     param.EnterpriseId,
		SubAccountId:     param.SubAccountId,
		Platform:         param.Platform,
		ProductSnap:      string(productInfoToJson),
		ProductPhotoSnap: string(productPhotosToJson),
		CreatedAt:        t,
		UpdatedAt:        t,
		AutoTaskID:       infoAutoTask.AutoTaskID,
	}
	err = dao.SelectionInfoDAO{}.CreateSelectionInfo(newSelection)
	if err != nil {
		return nil, err
	}

	return &selectionId, nil
}

// 更新带货任务（样品奖励、补充信息）
func (s SelectionInfoService) UpdateSelectionInfo(selectionUpdateParam *vo.SelectionInfoUpdateParam) (*string, error) {
	// 1. 检查该企业id和商品id有无选品
	selectionID := selectionUpdateParam.SelectionID
	selectionInfo, err := dao.SelectionInfoDAO{}.GetSelectionInfoById(selectionID)
	if err != nil {
		return nil, err
	}
	if selectionInfo == nil {
		return nil, errors.New("选品不存在")
	}
	// 2. 数据准备
	// a) 查找关联商品信息
	product, err := dao.ProductDAO{}.GetProductByID(selectionInfo.ProductID)
	if err != nil {
		return nil, err
	}
	productPhotos, err := dao.ProductPhotoDAO{}.GetProductPhotoByProductID(selectionInfo.ProductID)
	productInfoToJson, _ := json.Marshal(product)
	productPhotosToJson, _ := json.Marshal(productPhotos)
	// d) 任务截止时间
	taskDdl := time.Time{} //赋零值
	taskDdl, _ = time.ParseInLocation("2006-01-02 15:04:05", selectionUpdateParam.TaskDdl, time.Local)
	// f) 更新选品状态
	if selectionUpdateParam.SelectionStatus != 2 && selectionUpdateParam.SelectionStatus != 7 {
		selectionUpdateParam.SelectionStatus = 1
	}
	t := time.Now()
	var sampleMode, taskMode int64
	if len(selectionUpdateParam.FreeStrategys) > 0 {
		sampleMode = 1
	} else {
		sampleMode = 3
	}
	if len(selectionUpdateParam.RewardStrategys) > 0 {
		taskMode = 1
	} else {
		taskMode = 2
	}
	updateSelection := entity.SelectionInfo{
		SelectionID:      selectionUpdateParam.SelectionID,
		SelectionStatus:  selectionUpdateParam.SelectionStatus,
		SelectionName:    selectionUpdateParam.SelectionName,
		EnterpriseID:     selectionUpdateParam.EnterpriseId,
		SubAccountId:     selectionUpdateParam.SubAccountId,
		ProductID:        selectionUpdateParam.ProductId,
		ProductUrl:       selectionUpdateParam.ProductUrl,
		TaskMode:         taskMode,
		SampleMode:       sampleMode,
		SampleNum:        selectionUpdateParam.SampleNum,
		RemainNum:        selectionUpdateParam.SampleNum,
		CommissionRate:   selectionUpdateParam.CommissionRate,
		TaskReward:       selectionUpdateParam.TaskReward,
		SettlementAmount: selectionUpdateParam.SettlementAmount,
		EstimatedCost:    selectionInfo.EstimatedCost,
		SampleCondition:  selectionUpdateParam.SampleCondition,
		RewardCondition:  selectionUpdateParam.RewardCondition,
		TaskDdl:          taskDdl,
		Detail:           selectionUpdateParam.Detail,
		ProductSnap:      string(productInfoToJson),
		ProductPhotoSnap: string(productPhotosToJson),
		CreatedAt:        selectionInfo.CreatedAt,
		UpdatedAt:        t,
	}
	if selectionUpdateParam.SelectionStatus == 2 {
		updateSelection.SubmitAt = t
	}
	if selectionUpdateParam.Status == 1 {
		updateSelection.Status = 1
	}
	// 合并传入参数和数据表中原记录，若传入参数字段值为空，则将字段赋值为原记录中值
	result := util.MergeStructValue(&updateSelection, selectionInfo)
	// 利用反射机制将interface类型转换为结构体类型
	v := reflect.ValueOf(&result).Elem()
	if v.Kind() == reflect.Struct {
		updateSelection = v.Interface().(entity.SelectionInfo)
		//fmt.Println(p)
	}
	// c) 计算预估成本（如果有）
	/*
		var estimatedCost float64
		if conv.MustInt(updateSelection.TaskMode, 0) == 1 {
			estimatedCost = conv.MustFloat64(updateSelection.TaskReward, 0) * conv.MustFloat64(updateSelection.SampleNum, 0)
		}
		estimatedCostToString, _ := conv.String(estimatedCost)
		updateSelection.EstimatedCost = estimatedCostToString
	*/
	// 3. 更新选品
	err = dao.SelectionInfoDAO{}.UpdateSelectionInfo(updateSelection)
	if err != nil {
		return nil, err
	}

	// 4. 更新选品brief和示例（带货任务补充信息）
	if selectionUpdateParam.SecBrief != nil {
		// 删除已有brief
		err = dao.SecBriefDao{}.DeleteSecBriefBySelectionId(selectionInfo.SelectionID)
		if err != nil {
			return nil, err
		}
		// 插入新的brief
		for _, v := range selectionUpdateParam.SecBrief {
			brief := entity.SecBrief{
				SelectionID: selectionInfo.SelectionID,
				FileUid:     v.FileUid,
				FileName:    v.Name,
				FileUrl:     v.FileUrl,
				CreatedAt:   time.Now(),
			}
			err = dao.SecBriefDao{}.CreateSecBrief(brief)
			if err != nil {
				return nil, err
			}
		}
	}

	if selectionUpdateParam.SecMaterial != nil {
		// 删除已有示例
		err = dao.SecMaterialDao{}.DeleteSecMaterialBySelectionId(selectionInfo.SelectionID)
		if err != nil {
			return nil, err
		}
		// 插入新的示例
		for _, v := range selectionUpdateParam.SecMaterial {
			secMaterial := entity.SecMaterial{
				SelectionID: selectionInfo.SelectionID,
				FileUid:     v.FileUid,
				FileName:    v.Name,
				FileUrl:     v.FileUrl,
				CreatedAt:   time.Now(),
			}
			err = dao.SecMaterialDao{}.CreateSecMaterial(secMaterial)
			if err != nil {
				return nil, err
			}
		}
	}

	println("更新带货任务的免费领样策略")
	// 更新带货任务的免费领样策略
	if selectionUpdateParam.FreeStrategys != nil {
		// 1. 删除已有的免费领样策略
		err = dao.FreeStrategyDao{}.DeleteFreeStrategyBySelectionId(selectionUpdateParam.SelectionID)
		if err != nil {
			return nil, err
		}
		// 2. 接收并创建新的免费领样策略
		if sampleMode == 1 {
			var frees []entity.FreeStrategy
			for _, v := range selectionUpdateParam.FreeStrategys {
				free := entity.FreeStrategy{
					SelectionId:    selectionInfo.SelectionID,
					StrategyId:     v.StrategyId,
					FansNum:        v.FansNum,
					SaleNum:        v.SaleNum,
					StrategyStatus: 1,
					EnrollNum:      0,
					ChooseNum:      0,
				}
				frees = append(frees, free)
			}
			err = dao.FreeStrategyDao{}.CreateFreeStrategy(frees)
			if err != nil {
				return nil, err
			}
		}
	}

	println("更新带货任务的悬赏策略")
	// 更新带货任务的悬赏策略
	if selectionUpdateParam.RewardStrategys != nil {
		// 1. 删除已有的悬赏策略
		err = dao.RewardStrategyDao{}.DeleteRewardStrategyBySelectionId(selectionUpdateParam.SelectionID)
		if err != nil {
			return nil, err
		}
		if taskMode == 1 {
			var rewards []entity.RewardStrategy
			for _, v := range selectionUpdateParam.RewardStrategys {
				reward := entity.RewardStrategy{
					SelectionId:    selectionInfo.SelectionID,
					Reward:         v.Reward,
					SaleActual:     v.SaleActual,
					PerReward:      v.PerReward,
					StrategyStatus: 1,
				}
				rewards = append(rewards, reward)
			}
			err = dao.RewardStrategyDao{}.CreateRewardStrategy(rewards)
			if err != nil {
				return nil, err
			}
		}
	}

	return &updateSelection.SelectionID, nil
}

// 电商带货任务预览
func (s SelectionInfoService) GetSelectionDetail(selectionId string) (*vo.ReSelectionDetail, error) {
	reSelectionDetail := vo.ReSelectionDetail{}
	selection, err := dao.SelectionInfoDAO{}.GetSelectionInfoById(selectionId)
	if err != nil {
		logrus.Errorf("[selectionInfoDB service] call GetSelection error,err:%+v", err)
		return nil, err
	}
	// 系统信息
	reSelectionDetail.SelectionId = selectionId
	reSelectionDetail.SelectionStatus = selection.SelectionStatus
	reSelectionDetail.SelectionPlatform = selection.Platform
	reSelectionDetail.CreatedAt = selection.CreatedAt.Format("2006-01-02 15:04:05")
	reSelectionDetail.SubmitAt = selection.SubmitAt.Format("2006-01-02 15:04:05")
	var creatorName, phone string
	var rewardSum float64
	if selection.SubAccountId == 0 {
		enterprise, err := dao.EnterpriseDao{}.GetEnterprise(selection.EnterpriseID)
		if err == nil && enterprise != nil {
			creatorName = enterprise.BusinessName
			phone, err = dao.UserDao{}.GetPhoneByUserId(enterprise.UserId)
		}
	} else {
		subAccount, err := dao.SubAccountDao{}.GetSubAccount(selection.SubAccountId)
		if err == nil && subAccount != nil {
			creatorName = subAccount.SubAccountName
			phone, err = dao.UserDao{}.GetPhoneByUserId(subAccount.UserId)
		}
	}
	reSelectionDetail.CreatorName = creatorName
	reSelectionDetail.Phone = phone
	// 关联商品
	var reProduct vo.ReTaskProduct
	product, err := dao.ProductDAO{}.GetProductByID(selection.ProductID)
	if err == nil {
		photoUrl, e := dao.ProductPhotoDAO{}.GetMainPhotoByProductID(product.ProductID)
		if e != nil {
			photoUrl = ""
		}
		reProduct = vo.ReTaskProduct{
			ProductID:       product.ProductID,
			ProductName:     product.ProductName,
			ProductType:     product.ProductType,
			ProductCategory: product.ProductCategory,
			ProductPrice:    product.ProductPrice,
			ProductDetail:   product.ProductDetail,
			CreatedAt:       product.CreatedAt.Format("2006-01-02 15:04:05"),
			PhotoUrl:        photoUrl,
		}
	}
	reSelectionDetail.ProductInfo = &reProduct
	// 样品奖励
	reSelectionDetail.TaskDdl = selection.TaskDdl.Format("2006-01-02 15:04:05")
	reSelectionDetail.SampleNum = selection.SampleNum
	var freeStrategyPreviews []*vo.FreeStrategyPreview // 领样策略
	freeStrategys, err := dao.FreeStrategyDao{}.GetFreeStrategyBySelectionId(selectionId)
	if err != nil {
		logrus.Errorf("[selectionInfoDB service] call GetFreeStrategy error,err:%+v", err)
		return nil, err
	}
	for _, freeStrategy := range freeStrategys {
		freeStrategyPreview := &vo.FreeStrategyPreview{
			StrategyId:     freeStrategy.StrategyId,
			FansNum:        freeStrategy.FansNum,
			SaleNum:        freeStrategy.SaleNum,
			StrategyStatus: freeStrategy.StrategyStatus,
		}
		freeStrategyPreviews = append(freeStrategyPreviews, freeStrategyPreview)
	}
	reSelectionDetail.FreeStrategys = freeStrategyPreviews
	var rewardStrategyPreviews []*vo.RewardStrategyPreview // 悬赏策略
	rewardStrategys, err := dao.RewardStrategyDao{}.GetRewardStrategyBySelectionId(selectionId)
	if err != nil {
		logrus.Errorf("[selectionInfoDB service] call GetRewardStrategy error,err:%+v", err)
		return nil, err
	}
	for _, rewardStrategy := range rewardStrategys {
		rewardStrategyPreview := &vo.RewardStrategyPreview{
			Reward:         rewardStrategy.Reward,
			SaleActual:     rewardStrategy.SaleActual,
			PerReward:      rewardStrategy.PerReward,
			StrategyStatus: rewardStrategy.StrategyStatus,
		}
		rewardStrategyPreviews = append(rewardStrategyPreviews, rewardStrategyPreview)
	}
	reSelectionDetail.FreeStrategys = freeStrategyPreviews
	reSelectionDetail.RewardStrategys = rewardStrategyPreviews
	for _, rewardStrategy := range rewardStrategys {
		rewardSum += rewardStrategy.Reward
	}
	reSelectionDetail.RewardSum = rewardSum
	// 补充信息
	selectionBriefInfos, err := dao.SecBriefDao{}.GetSelectionBriefInfo(selectionId)
	if err != nil {
		logrus.Errorf("[selectionInfoDB service] call GetSelectionBriefInfo error,err:%+v", err)
		return nil, err
	}
	selectionMaterials, err := dao.SecMaterialDao{}.GetSelectionMaterialInfo(selectionId)
	if err != nil {
		logrus.Errorf("[selectionInfoDB service] call GetSelectionMaterialInfo error,err:%+v", err)
		return nil, err
	}
	reSelectionDetail.SelectionBriefs = selectionBriefInfos
	reSelectionDetail.SelectionMaterials = selectionMaterials

	return &reSelectionDetail, nil
}

// 电商带货提交审核
func (s SelectionInfoService) SelectionToReview(selectionUpdateParam *vo.SelectionInfoUpdateParam) (*string, error) {
	selectionId := selectionUpdateParam.SelectionID
	t := time.Now()
	updateSelection := entity.SelectionInfo{
		SelectionID:     selectionId,
		SelectionStatus: 2,
		UpdatedAt:       t,
	}
	err := dao.SelectionInfoDAO{}.UpdateSelectionInfo(updateSelection)
	if err != nil {
		return nil, err
	}
	return &selectionId, nil
}

// 电商带货任务列表
func (s SelectionInfoService) GetSelectionTaskList(param *vo.SelectionSearchParam) (vo.ResultVO, error) {
	if param.Page == 0 {
		param.Page = 1
	}
	if param.PageSize == 0 {
		param.PageSize = 10
	}
	var result vo.ResultVO
	reSelectionTaskPreviews, total, err := (&dao.SelectionInfoDAO{}).GetSelectionPreviews(param)
	if err != nil {
		return result, err
	}
	for i := range reSelectionTaskPreviews {
		var creatorName string
		var productName string
		var productPrice float64
		var mainImage string
		var reward float64
		if reSelectionTaskPreviews[i].SubAccountId == 0 {
			enterprise, err := dao.EnterpriseDao{}.GetEnterprise(reSelectionTaskPreviews[i].EnterpriseId)
			if err == nil && enterprise != nil {
				creatorName = enterprise.BusinessName
			}
		} else {
			subAccount, err := dao.SubAccountDao{}.GetSubAccount(reSelectionTaskPreviews[i].SubAccountId)
			if err == nil && subAccount != nil {
				creatorName = subAccount.SubAccountName
			}
		}
		product, err := dao.ProductDAO{}.GetProductByID(reSelectionTaskPreviews[i].ProductId)
		if err == nil && product != nil {
			productName = product.ProductName
			productPrice = product.ProductPrice
		}
		mainImage, err = dao.ProductPhotoDAO{}.GetMainPhotoByProductID(reSelectionTaskPreviews[i].ProductId)
		rewardStrategys, err := dao.RewardStrategyDao{}.GetRewardStrategyBySelectionId(reSelectionTaskPreviews[i].SelectionId)
		for _, rewardStrategy := range rewardStrategys {
			reward += rewardStrategy.Reward
		}
		reSelectionTaskPreviews[i].CreatorName = creatorName
		reSelectionTaskPreviews[i].ProductName = productName
		reSelectionTaskPreviews[i].ProductPrice = productPrice
		reSelectionTaskPreviews[i].MainImage = mainImage
		reSelectionTaskPreviews[i].Reward = reward
	}
	result = vo.ResultVO{
		Page:     param.Page,
		PageSize: param.PageSize,
		Total:    total,
		Data:     reSelectionTaskPreviews,
	}
	return result, nil
}

// 删除带货任务
func (s SelectionInfoService) DeleteSelection(selectionId string) (*string, error) {
	res, err := dao.SelectionInfoDAO{}.DeleteSelection(selectionId)
	if err != nil {
		logrus.Errorf("[projectDB service] call DeleteSelection error,err:%+v", err)
		return res, err
	}
	return res, nil
}

// 草稿箱——电商带货
func (s SelectionInfoService) GetSelectionDraftList(param *vo.SelectionDraftParam) (vo.ResultVO, error) {
	if param.Page == 0 {
		param.Page = 1
	}
	if param.PageSize == 0 {
		param.PageSize = 10
	}
	var result vo.ResultVO
	reSelectionTaskPreviews, total, err := (&dao.SelectionInfoDAO{}).GetSelectionDraftList(param)
	if err != nil {
		return result, err
	}
	for i := range reSelectionTaskPreviews {
		var creatorName string
		var productName string
		var productPrice float64
		var mainImage string
		if reSelectionTaskPreviews[i].SubAccountId == 0 {
			enterprise, err := dao.EnterpriseDao{}.GetEnterprise(reSelectionTaskPreviews[i].EnterpriseId)
			if err == nil && enterprise != nil {
				creatorName = enterprise.BusinessName
			}
		} else {
			subAccount, err := dao.SubAccountDao{}.GetSubAccount(reSelectionTaskPreviews[i].SubAccountId)
			if err == nil && subAccount != nil {
				creatorName = subAccount.SubAccountName
			}
		}
		product, err := dao.ProductDAO{}.GetProductByID(reSelectionTaskPreviews[i].ProductId)
		if err == nil && product != nil {
			productName = product.ProductName
			productPrice = product.ProductPrice
		}
		mainImage, err = dao.ProductPhotoDAO{}.GetMainPhotoByProductID(reSelectionTaskPreviews[i].ProductId)
		reSelectionTaskPreviews[i].CreatorName = creatorName
		reSelectionTaskPreviews[i].ProductName = productName
		reSelectionTaskPreviews[i].ProductPrice = productPrice
		reSelectionTaskPreviews[i].MainImage = mainImage
	}
	result = vo.ResultVO{
		Page:     param.Page,
		PageSize: param.PageSize,
		Total:    total,
		Data:     reSelectionTaskPreviews,
	}
	return result, nil
}