package report

import (
	sql2 "database/sql"
	"eta/eta_api/global"
	"eta/eta_api/utils"
	"gorm.io/gorm"
	"gorm.io/gorm/clause"
	"time"
)

type ReportFreeLayout struct {
	Id              int       `gorm:"primaryKey;autoIncrement;column:id"` // 主键
	ReportId        int       `gorm:"column:report_id"`                   // 研报Id
	ReportChapterId int       `gorm:"column:report_chapter_id"`           // 章节Id
	Page            int       `gorm:"column:page"`                        // 页码
	IsChapter       int       `gorm:"column:is_chapter"`                  // 是否多章节
	Content         string    `gorm:"column:content;size:255"`            // 内容
	ContentStruct   string    `gorm:"column:content_struct;size:255"`     // 内容
	CreateTime      time.Time `gorm:"column:create_time"`                 // 创建时间
	ModifyTime      time.Time `gorm:"column:modify_time"`                 // 修改时间
}
type PagePositionEnum string

const (
	Left   PagePositionEnum = "left"
	Right  PagePositionEnum = "right"
	Center PagePositionEnum = "center"
)

type ContentPage struct {
	Id              int    `json:"Id"`
	Page            int    `json:"Page"`
	Content         string `json:"Content"`
	ContentStruct   string `json:"ContentStruct"`
	ReportId        int    `json:"ChapterId"`
	ReportChapterId int    `json:"ReportChapterId"`
}

func (cp *ContentPage) ToView(isChapter bool, ReportId int, ReportChapterId int) *ReportFreeLayout {
	if isChapter {
		return &ReportFreeLayout{
			ReportId:        ReportId,
			ReportChapterId: ReportChapterId,
			Page:            cp.Page,
			IsChapter:       1,
			Content:         cp.Content,
			ContentStruct:   cp.ContentStruct,
			CreateTime:      time.Now(),
		}
	} else {
		return &ReportFreeLayout{
			ReportId:        ReportId,
			ReportChapterId: ReportChapterId,
			Page:            cp.Page,
			IsChapter:       0,
			Content:         cp.Content,
			ContentStruct:   cp.ContentStruct,
			CreateTime:      time.Now(),
		}
	}
}
func (cp *ReportFreeLayout) ToPageView() *ContentPage {
	return &ContentPage{
		Page:            cp.Page,
		Content:         cp.Content,
		ContentStruct:   cp.ContentStruct,
		ReportId:        cp.ReportId,
		ReportChapterId: cp.ReportChapterId,
	}
}
func ToOrmViewList(srcList []ContentPage, isChapter bool, ReportId int, ReportChapterId int) (list []*ReportFreeLayout) {
	for _, v := range srcList {
		list = append(list, v.ToView(isChapter, ReportId, ReportChapterId))
	}
	return
}

func ToPageViewList(srcList []*ReportFreeLayout) (list []*ContentPage) {
	for _, v := range srcList {
		list = append(list, v.ToPageView())
	}
	return
}

// TableName 设置表名
func (*ReportFreeLayout) TableName() string {
	return "report_free_layout"
}

func SortPage(reportId int, tx *gorm.DB) (err error) {
	if tx == nil {
		tx = global.DbMap[utils.DbNameReport].Begin()
		defer func() {
			if err != nil {
				_ = tx.Rollback()
				return
			}
			_ = tx.Commit()
		}()
	}
	sql := `select * from report_free_layout where report_id = ?  and is_chapter=1   order by page asc`
	var ormList []*ReportFreeLayout
	err = tx.Raw(sql, reportId).Find(&ormList).Error
	if err != nil {
		return
	}
	if len(ormList) == 0 {
		return
	}
	chapterPages := make(map[int][]*ReportFreeLayout)
	for _, v := range ormList {
		chapterPages[v.ReportChapterId] = append(chapterPages[v.ReportChapterId], v)
	}

	chapterSql := `select report_chapter_id from report_chapter where report_id =? order by sort asc`
	var chapterIds []int
	err = tx.Raw(chapterSql, reportId).Scan(&chapterIds).Error
	if err != nil {
		return
	}
	initPage := 1
	for _, chapter := range chapterIds {
		chapterList := chapterPages[chapter]
		for _, v := range chapterList {
			v.Page = initPage
			initPage++
		}

	}
	var updateList []*ReportFreeLayout
	for _, chapterList := range chapterPages {
		updateList = append(updateList, chapterList...)
	}
	err = tx.Model(&ReportFreeLayout{}).Clauses(clause.OnConflict{
		Columns:   []clause.Column{{Name: "Id"}},
		DoUpdates: clause.AssignmentColumns([]string{"Page"}),
	}).CreateInBatches(updateList, len(updateList)).Error
	return
}

func DeleteChapters(reportId int, chapterId int) (err error) {
	tx := global.DbMap[utils.DbNameReport].Begin()
	defer func() {
		if err != nil {
			_ = tx.Rollback()
			return
		}
		_ = tx.Commit()
	}()
	err = tx.Exec("delete from report_free_layout where   report_id = ?  and report_chapter_id=? and is_chapter=1", reportId, chapterId).Error
	if err != nil {
		return
	}
	err = SortPage(reportId, tx)
	return
}
func BatchInsertOrUpdatePages(tx *gorm.DB, list []*ReportFreeLayout, isChapter bool, reportId, chapterId int) (err error) {
	if isChapter {
		err = tx.Exec("delete from report_free_layout where   report_id = ?  and report_chapter_id=? and is_chapter=1", reportId, chapterId).Error
		if err != nil {
			return
		}
		//err = tx.Model(&ReportFreeLayout{}).Clauses(clause.OnConflict{
		//	Columns:   []clause.Column{{Name: "id"}},
		//	DoUpdates: clause.AssignmentColumns([]string{"content", "content_struct", "modify_time"}),
		//}).CreateInBatches(list, len(list)).Error
		err = tx.Model(&ReportFreeLayout{}).CreateInBatches(list, len(list)).Error
		if err != nil {
			return
		}
		err = SortPage(reportId, tx)
		return
	} else {
		err = tx.Exec("delete from  report_free_layout where report_id = ? and  is_chapter=0", reportId).Error
		if err != nil {
			return
		}
		err = tx.Model(&ReportFreeLayout{}).CreateInBatches(list, len(list)).Error
		//.Clauses(clause.OnConflict{
		//	Columns:   []clause.Column{{Name: "id"}},
		//	DoUpdates: clause.AssignmentColumns([]string{"content", "content_struct", "page", "modify_time"}),
		//})

	}
	return
}
func GetPrevFreeLayoutChaptersPagesByChapterId(reportId int, chapterId int) (pageNum int, err error) {
	var pageNumNullable sql2.NullInt64
	sql := `SELECT count(*) 
FROM report_free_layout rfl
JOIN report_chapter rc ON rc.report_id = rfl.report_id and rc.report_chapter_id=rfl.report_chapter_id
WHERE rfl.report_id = ?
  AND rc.sort < (
    SELECT sort
    FROM report_chapter
    WHERE report_id = ? and report_chapter_id=?
  )`
	err = global.DbMap[utils.DbNameReport].Raw(sql, reportId, reportId, chapterId).Scan(&pageNumNullable).Error
	if err != nil {
		return
	}
	if pageNumNullable.Valid {
		pageNum = int(pageNumNullable.Int64)
	}
	return
}
func GetFreeLayoutChapterPagesByReportId(reportId int) (list []*ContentPage, err error) {
	var ormList []*ReportFreeLayout
	sql := `select rfl.*,rc.sort from report_free_layout rfl LEFT JOIN report_chapter rc on rc.report_id=rfl.report_id and rc.report_chapter_id=rfl.report_chapter_id where rfl.report_id =? order by rc.sort,rfl.page asc`
	err = global.DbMap[utils.DbNameReport].Raw(sql, reportId).Find(&ormList).Error
	if err != nil {
		return nil, err
	}
	list = ToPageViewList(ormList)
	return
}
func GetSingleFreeLayoutChapterPagesByReportId(reportId, chapterId int) (list []*ContentPage, err error) {
	var ormList []*ReportFreeLayout
	sql := `select * from report_free_layout where report_id =? and report_chapter_id=? order by page asc`
	err = global.DbMap[utils.DbNameReport].Raw(sql, reportId, chapterId).Find(&ormList).Error
	if err != nil {
		return nil, err
	}
	list = ToPageViewList(ormList)
	return
}
func GetFreeLayoutPagesByReportId(id int) (list []*ContentPage, err error) {
	var ormList []*ReportFreeLayout
	sql := `select * from report_free_layout  where report_id =? and is_chapter=0 order by page asc`
	err = global.DbMap[utils.DbNameReport].Raw(sql, id).Find(&ormList).Error
	if err != nil {
		return nil, err
	}
	list = ToPageViewList(ormList)
	return
}

// GetReportFreeLayoutListByReportId
// @Description: 根据报告ID和章节ID获取所有的布局列表
// @author: Roc
// @datetime 2025-04-16 13:46:38
// @param reportId int
// @param chapterId int
// @return list []*ReportFreeLayout
// @return err error
func GetReportFreeLayoutListByReportId(reportId, chapterId int) (list []*ReportFreeLayout, err error) {
	sql := `select * from report_free_layout  where report_id =? and report_chapter_id=? order by page asc`
	err = global.DbMap[utils.DbNameReport].Raw(sql, reportId, chapterId).Find(&list).Error

	return
}

// GetAllReportFreeLayoutListByReportId
// @Description: 根据报告id获取所有的报告自由布局列表（含章节的）
// @author: Roc
// @datetime 2025-04-16 13:46:24
// @param reportId int
// @return list []*ReportFreeLayout
// @return err error
func GetAllReportFreeLayoutListByReportId(reportId int) (list []*ReportFreeLayout, err error) {
	sql := `select * from report_free_layout  where report_id =? order by page asc`
	err = global.DbMap[utils.DbNameReport].Raw(sql, reportId).Find(&list).Error

	return
}