package services

import (
	"eta/eta_api/models"
	"eta/eta_api/models/rag"
	"eta/eta_api/utils"
	"fmt"
	"golang.org/x/net/html"
	"golang.org/x/net/html/atom"
	"regexp"
	"strings"
	"time"
)

// ReportAddOrModifyKnowledge
// @Description: ETA报告加入/修改到知识库
// @author: Roc
// @datetime 2025-04-07 14:41:45
// @param reportId int
// @param reportChapterId int
func ReportAddOrModifyKnowledge(reportId, reportChapterId int) {
	if reportId <= 0 {
		return
	}
	var err error
	defer func() {
		if err != nil {
			//fmt.Println("ReportAddOrModifyKnowledge error:", err)
			utils.FileLog.Error("ReportAddOrModifyKnowledge error:", err)
		}
	}()

	var title, author, htmlContent string
	var publishTime time.Time

	if reportChapterId > 0 {
		chapterInfo, tmpErr := models.GetReportChapterInfoById(reportChapterId)
		if tmpErr != nil {
			return
		}
		title = chapterInfo.Title
		author = chapterInfo.Author
		publishTime = chapterInfo.PublishTime
		htmlContent = chapterInfo.Content
	} else {
		reportInfo, tmpErr := models.GetReportByReportId(reportId)
		if tmpErr != nil {
			return
		}
		title = reportInfo.Title
		author = reportInfo.Author
		publishTime = reportInfo.PublishTime
		htmlContent = reportInfo.Content
	}

	err = handleReportAddOrModifyKnowledge(reportId, reportChapterId, title, author, htmlContent, publishTime)

	return
}

// ReportAddOrModifyKnowledgeByReportId
// @Description: ETA报告加入/修改到知识库（只传id的情况）
// @author: Roc
// @datetime 2025-04-07 15:41:15
// @param reportId int
func ReportAddOrModifyKnowledgeByReportId(reportId int) {
	if reportId <= 0 {
		return
	}
	errList := make([]string, 0)
	defer func() {
		if len(errList) > 0 {
			utils.FileLog.Error("ReportAddOrModifyKnowledge error，报告ID：%d:%s", reportId, strings.Join(errList, "\n"))
		}
	}()

	reportInfo, err := models.GetReportByReportId(reportId)
	if err != nil {
		errList = append(errList, err.Error())
		return
	}

	// 如果是单篇报告，那么直接处理
	if reportInfo.HasChapter == 0 {
		err = handleReportAddOrModifyKnowledge(reportId, 0, reportInfo.Title, reportInfo.Author, reportInfo.Content, reportInfo.PublishTime)
		if err != nil {
			errList = append(errList, err.Error())
		}
		return
	}

	// 章节类型的报告，需要查询出来后再处理
	chapterInfoList, err := models.GetPublishedChapterListByReportId(reportId)
	if err != nil {
		errList = append(errList, err.Error())
		return
	}
	for _, v := range chapterInfoList {
		err = handleReportAddOrModifyKnowledge(reportId, v.ReportChapterId, v.Title, reportInfo.Author, v.Content, v.PublishTime)
		if err != nil {
			errList = append(errList, fmt.Sprintf("第%d章：%s，异常：\n%s", v.ReportChapterId, v.Title, err.Error()))
			continue
		}
	}

	return
}

// handleReportAddOrModifyKnowledge
// @Description: 处理ETA报告加入/修改到知识库
// @author: Roc
// @datetime 2025-04-07 15:33:38
// @param reportId int
// @param reportChapterId int
// @param title string
// @param author string
// @param htmlContent string
// @param publishTime time.Time
// @return err error
func handleReportAddOrModifyKnowledge(reportId, reportChapterId int, title, author, htmlContent string, publishTime time.Time) (err error) {
	htmlContent = html.UnescapeString(htmlContent)
	doc, err := html.Parse(strings.NewReader(htmlContent))
	if err != nil {
		return
	}
	// 只获取文本内容
	content := &strings.Builder{}
	getArticleContent(content, doc)

	textContent := content.String()
	textContent = regexp.MustCompile(`\n+`).ReplaceAllString(textContent, "\n")
	textContent = strings.Trim(textContent, "\n")

	publishTimeStr := `未知`
	if !publishTime.IsZero() {
		title = fmt.Sprintf("%s(%s)", title, publishTime.Format(utils.FormatMonthDayUnSpace))
		publishTimeStr = publishTime.Format(utils.FormatDateTime)
	}

	textContent = fmt.Sprintf("标题：%s\n发布时间：%s\n%s", title, publishTimeStr, textContent)

	obj := rag.RagEtaReport{}
	item, err := obj.GetByReportAndChapterId(reportId, reportChapterId)
	if err != nil && !utils.IsErrNoRow(err) {
		// 查询异常，且不是没找到数据的报错
		return
	}

	if err == nil {
		// 标记删除了的话，那就不处理了
		if item.IsDeleted == 1 {
			return
		}
		item.Title = title
		item.Author = author
		item.TextContent = textContent
		item.IsPublished = 1
		//item.PublishTime = publishTime
		item.ModifyTime = time.Now()
		//err = item.Update([]string{"title", "author", "text_content", "is_published", "publish_time", "modify_time"})
		err = item.Update([]string{"title", "author", "text_content", "is_published", "modify_time"})
	} else {
		// 无数据的时候，需要新增
		err = nil
		item = &rag.RagEtaReport{
			RagEtaReportId:  0,
			ReportId:        reportId,
			ReportChapterId: reportChapterId,
			Title:           title,
			Author:          author,
			TextContent:     textContent,
			VectorKey:       "",
			IsPublished:     1,
			IsDeleted:       0,
			PublishTime:     publishTime,
			ModifyTime:      time.Now(),
			CreateTime:      time.Now(),
		}
		err = item.Create()
	}

	return
}

// ReportUnPublishedKnowledge
// @Description: 知识库取消发布
// @author: Roc
// @datetime 2025-04-07 14:58:25
// @param reportId int
// @param reportChapterId int
func ReportUnPublishedKnowledge(reportId, reportChapterId int) {
	if reportId <= 0 && reportChapterId <= 0 {
		return
	}
	var err error
	defer func() {
		if err != nil {
			//fmt.Println("ReportAddOrModifyKnowledge error:", err)
			utils.FileLog.Error("ReportAddOrModifyKnowledge error:", err)
		}
	}()

	obj := rag.RagEtaReport{}
	item, err := obj.GetByReportAndChapterId(reportId, reportChapterId)
	if err != nil && !utils.IsErrNoRow(err) {
		// 查询异常，且不是没找到数据的报错
		return
	}

	if item.RagEtaReportId > 0 {
		item.IsPublished = 0
		item.ModifyTime = time.Now()
		err = item.Update([]string{"is_published", "modify_time"})
	}

	return
}

// ReportUnPublishedKnowledgeByReportId
// @Description: ETA报告取消发布同步到知识库（只传报告id的情况）
// @author: Roc
// @datetime 2025-04-07 15:41:15
// @param reportId int
func ReportUnPublishedKnowledgeByReportId(reportId int) {
	errList := make([]string, 0)
	defer func() {
		if len(errList) > 0 {
			utils.FileLog.Error("ReportUnPublishedKnowledgeByReportId error，报告ID：%d:%s", reportId, strings.Join(errList, "\n"))
		}
	}()

	obj := rag.RagEtaReport{}
	list, err := obj.GetListByCondition(``, ` AND report_id = ? `, []interface{}{reportId}, 0, 1000)
	if err != nil && !utils.IsErrNoRow(err) {
		// 查询异常，且不是没找到数据的报错
		return
	}

	for _, item := range list {
		item.IsPublished = 0
		item.ModifyTime = time.Now()
		err = item.Update([]string{"is_published", "modify_time"})
		if err != nil {
			errList = append(errList, fmt.Sprintf("第%d章：%s，异常：\n%s", item.ReportChapterId, item.Title, err.Error()))
			continue
		}
	}

	return
}

func getArticleContent(content *strings.Builder, htmlContentNode *html.Node) {
	if htmlContentNode.Type == html.TextNode {
		cleanData := strings.TrimSpace(htmlContentNode.Data)
		if cleanData != `` && cleanData != "</p>" {
			content.WriteString(cleanData)
		}
	} else if htmlContentNode.Type == html.ElementNode {
		switch htmlContentNode.DataAtom {
		case atom.Ul:
			content.WriteString("\n")
		case atom.Br:
			// 遇到 <br> 标签时添加换行符
			content.WriteString("\n")
		case atom.P:
			content.WriteString("\n")
		}
	}
	for c := htmlContentNode.FirstChild; c != nil; c = c.NextSibling {
		getArticleContent(content, c)
	}
}