package knowledge

import (
	"eta_gn/eta_report/models"
	"eta_gn/eta_report/services"
	"eta_gn/eta_report/utils"
	"fmt"
	"html"
	"io/ioutil"
	"mime/multipart"
	"os"
	"path"
	"strconv"
	"strings"
	"time"
)

func ReportKnowledgeResourceAdd(title string, fileUrl []string, adminId int, adminRealName, classifyPath, sourceFrom string, pushTime time.Time) (msg string, err error) {
	classifyObj := new(models.KnowledgeClassify)
	var childClassifyId int
	if classifyPath != "" {
		classifyPathArr := strings.Split(classifyPath, "/")
		var classifyFirst, classifySecond, classifyThird string
		switch len(classifyPathArr) {
		case 1:
			classifyFirst = classifyPathArr[0]
		case 2:
			classifyFirst = classifyPathArr[0]
			classifySecond = classifyPathArr[1]
		case 3:
			classifyFirst = classifyPathArr[0]
			classifySecond = classifyPathArr[1]
			classifyThird = classifyPathArr[2]
		}
		childClassifyId, err = classifyObj.GetChildClassifyIdByNamePath(models.KnowledgeResourceTypeReport, classifyFirst, classifySecond, classifyThird)
		if err != nil {
			if utils.IsErrNoRow(err) {
				msg = "分类不存在，请检查知识资源-报告库中是否存在-" + classifyPath
				return
			}
			msg = "报告库添加失败"
			return
		}
	} else {
		msg = "分类不能为空"
		return
	}
	if childClassifyId == 0 {
		msg = "分类不存在，请检查知识资源-报告库中是否存在-" + classifyPath
		return
	}
	obj := new(models.KnowledgeResource)
	obj.ResourceType = models.KnowledgeResourceTypeReport
	obj.ClassifyId = childClassifyId
	obj.Title = title
	obj.CreateTime = time.Now()
	obj.ModifyTime = time.Now()
	obj.State = models.KnowledgeResourceStatePublished
	timestamp := strconv.FormatInt(time.Now().UnixNano(), 10)
	obj.ResourceCode = utils.MD5(utils.CHART_PREFIX + "_" + timestamp)
	obj.AdminId = adminId
	obj.AdminRealName = adminRealName
	obj.SourceFrom = sourceFrom
	obj.StartTime = &pushTime
	// 此处传入的url会在入库时存入knowledge_resource_file表中
	if len(fileUrl) != 0 {
		obj.IsFile = 1
	}
	err = obj.Create(fileUrl)
	if err != nil {
		return
	}
	return
}

func ReportKnowledgeResourceClassifyCheckAndSave(reportClassifyId int) (classifyId int, err error) {
	classifyObj := new(models.Classify)
	classifyObj, err = classifyObj.GetItemById(reportClassifyId)
	if err != nil {
		if !utils.IsErrNoRow(err) {
			return
		}
	}
	levelPath := classifyObj.LevelPath
	classifyIdStrs := strings.Split(levelPath, ",")
	classifyIds := make([]int, 0, len(classifyIdStrs))
	for _, classifyIdStr := range classifyIdStrs {
		classifyId, _ := strconv.Atoi(classifyIdStr)
		classifyIds = append(classifyIds, classifyId)
	}
	classifyList, err := classifyObj.GetItemsByIds(classifyIds)
	if err != nil {
		return
	}
	knowledgeClassifyObj := new(models.KnowledgeClassify)
	var parentId int
	for i, classify := range classifyList {
		knowledgeClassifyObj, err = knowledgeClassifyObj.GetClassifyByNameTypeAndParentId(classify.ClassifyName, models.KnowledgeResourceTypeOpinion, parentId)
		if err != nil {
			if !utils.IsErrNoRow(err) {
				return
			}
			for j := i; j < len(classifyList); j++ {
				tmp := &models.KnowledgeClassify{
					ClassifyName: classifyList[j].ClassifyName,
					Sort:         1,
					ParentId:     parentId,
					CreateTime:   time.Now(),
					ModifyTime:   time.Now(),
					Enabled:      1,
					Level:        classifyList[j].Level,
					ResourceType: models.KnowledgeResourceTypeOpinion,
				}
				err = tmp.Create()
				if err != nil {
					return
				}
				parentId = tmp.ClassifyId
			}
			classifyId = parentId
			return
		}
		parentId = knowledgeClassifyObj.ClassifyId
	}
	classifyId = parentId
	return
}

// ViewPointSave 知识资源观点库保存
func ViewPointSave(outId, adminId int, adminRealName, title, content, sourceFrom, classifyName string, classifyId, outSource int, startTime *time.Time) (msg string, err error) {
	if classifyId <= 0 {
		tmpClassifyId, er := ViewPointKnowledgeResourceClassifyCheckAndSave(classifyName, models.KnowledgeResourceTypeOpinion)
		if er != nil {
			msg = "观点保存失败"
			err = er
			return
		}
		classifyId = tmpClassifyId
	}
	obj := new(models.KnowledgeResource)
	knowledgeResource, err := obj.GetKnowledgeResourceByOutId(outId)
	esObj := new(models.KnowledgeResource)
	if err != nil && !utils.IsErrNoRow(err) {
		msg = "观点保存失败"
		return
	}
	if outId <= 0 || utils.IsErrNoRow(err) {
		// 创建新的知识资源库
		err = nil
		obj.ResourceType = models.KnowledgeResourceTypeOpinion
		obj.ClassifyId = classifyId
		obj.Title = title
		obj.CreateTime = time.Now()
		obj.ModifyTime = time.Now()
		obj.State = models.KnowledgeResourceStateApproved
		obj.OutSource = outSource
		obj.Content = html.EscapeString(content)
		timestamp := strconv.FormatInt(time.Now().UnixNano(), 10)
		obj.ResourceCode = utils.MD5(utils.CHART_PREFIX + "_" + timestamp)
		obj.AdminId = adminId
		if adminRealName == "" || obj.AdminId == 0 {
			obj.AdminRealName = "无"
		} else {
			obj.AdminRealName = adminRealName
		}
		obj.SourceFrom = sourceFrom
		obj.StartTime = startTime
		obj.IsFile = 0
		err = obj.Create([]string{})
		if err != nil {
			msg = "观点保存失败"
			return
		}
		esObj = obj
	} else {
		// 更新知识资源库的状态
		var updateCols []string
		if knowledgeResource.Title != title {
			knowledgeResource.Title = title
			updateCols = append(updateCols, "title")
		}
		if knowledgeResource.Content != content {
			knowledgeResource.Content = content
			updateCols = append(updateCols, "content")
		}
		if !knowledgeResource.StartTime.Equal(*startTime) {
			knowledgeResource.StartTime = startTime
			updateCols = append(updateCols, "start_time")
		}
		if knowledgeResource.SourceFrom != sourceFrom {
			knowledgeResource.SourceFrom = sourceFrom
			updateCols = append(updateCols, "source_from")
		}

		if len(updateCols) > 0 {
			knowledgeResource.ModifyTime = time.Now()
			updateCols = append(updateCols, "modify_time")
			err = knowledgeResource.Update(updateCols)
			if err != nil {
				msg = "观点保存失败"
				return
			}
		}
		esObj = knowledgeResource
	}

	go func() {
		er := EsAddOrEditKnowledgeResource(esObj)
		if er != nil {
			utils.FileLog.Info("es ViewPointSave error:%v", er)
		}
	}()
	return
}

func ViewPointKnowledgeResourceClassifyCheckAndSave(classifyName string, resourceType int) (classifyId int, err error) {
	obj := new(models.KnowledgeClassify)
	obj, err = obj.GetClassifyByNameTypeAndParentId(classifyName, resourceType, 0)
	if err != nil {
		if !utils.IsErrNoRow(err) {
			return
		}
		// 创建新的分类
		err = nil
		obj.ClassifyName = classifyName
		obj.ResourceType = resourceType
		obj.CreateTime = time.Now()
		obj.ModifyTime = time.Now()
		obj.Enabled = 1
		obj.Level = 1
		obj.Sort = 1
		err = obj.Create()
		if err != nil {
			return
		}
		classifyId = obj.ClassifyId
	} else {
		classifyId = obj.ClassifyId
	}
	return
}

func UploadFormFile(multipartFile map[string][]*multipart.FileHeader) (fileUrl []string, msg string, err error) {
	client := services.NewOssClient()

	// 定义允许的文件格式
	allowedExtensions := map[string]bool{
		".pdf":  true,
		".doc":  true,
		".docx": true,
		".ppt":  true,
		".pptx": true,
	}
	for _, file := range multipartFile {
		for _, f := range file {
			if f.Filename == "" {
				continue
			}
			ext := path.Ext(f.Filename)
			if !allowedExtensions[ext] {
				msg = "文件格式不正确"
				err = fmt.Errorf("文件格式不正确")
				return
			}
			saveName := fmt.Sprint(utils.MD5(f.Filename), time.Now().Format(utils.FormatDateTimeUnSpace), time.Now().Nanosecond(), ext)
			dataDir := time.Now().Format(utils.FormatDate)
			filePath := utils.StaticDir + "files/" + dataDir
			ok, _ := utils.PathExists(filePath)
			if !ok {
				err = os.MkdirAll(filePath, utils.DIR_MOD)
				if err != nil {
					msg = "目录创建失败"
					return
				}
			}
			fileContent, er := f.Open()
			if er != nil {
				msg = "文件打开失败"
				err = er
				return
			}
			fileContentBytes, er := ioutil.ReadAll(fileContent)
			if er != nil {
				msg = "文件读取失败"
				err = er
				return
			}
			filePath = filePath + "/" + saveName
			// 保存到本地
			er = utils.SaveToFile(fileContentBytes, filePath)
			if er != nil {
				msg = "文件保存失败"
				err = er
				return
			}
			_, er = os.Stat(filePath)
			if er != nil {
				msg = "文件信息获取失败"
				err = er
				return
			}
			randStr := utils.GetRandStringNoSpecialChar(28)
			fileName := randStr + ext

			savePath := fmt.Sprintf("%s%s%s", utils.UploadFileDir, time.Now().Format("200601/20060102/"), fileName)
			resourceUrl, er := client.UploadFile(fileName, filePath, savePath)
			if er != nil {
				msg = "文件上传失败"
				err = er
				return
			}
			fileUrl = append(fileUrl, resourceUrl)
		}
	}
	return
}