package data_manage

import (
	"encoding/json"
	"eta_gn/eta_api/controllers"
	"eta_gn/eta_api/models"
	"eta_gn/eta_api/models/data_manage"
	"eta_gn/eta_api/services/data"
	"eta_gn/eta_api/utils"
	"fmt"
	"sort"
	"strconv"
	"strings"
	"time"
)

// ChartCollectClassifyController 图表收藏分类
type ChartCollectClassifyController struct {
	controllers.BaseAuthController
}

// List
// @Title 分类列表-含图表
// @Description 分类列表-含图表
// @Param   ParentId  query  int  false  "父级ID"
// @Success 200 {object} data_manage.ChartCollectClassifyListItem
// @router /chart_collect/classify/list [get]
func (this *ChartCollectClassifyController) List() {
	br := new(models.BaseResponse).Init()
	defer func() {
		if br.ErrMsg == "" {
			br.IsSendEmail = false
		}
		this.Data["json"] = br
		this.ServeJSON()
	}()
	sysUser := this.SysUser
	if sysUser == nil {
		br.Msg = "请登录"
		br.ErrMsg = "请登录，SysUser Is Empty"
		br.Ret = 408
		return
	}
	parentId, _ := this.GetInt("ParentId")

	resp := make([]*data_manage.ChartCollectClassifyListItem, 0)
	// 查询分类
	classifyOb := new(data_manage.ChartCollectClassify)
	{
		cond := fmt.Sprintf(" AND %s = ? AND %s = ?", classifyOb.Cols().ParentId, classifyOb.Cols().SysUserId)
		pars := make([]interface{}, 0)
		pars = append(pars, parentId, sysUser.AdminId)
		list, e := classifyOb.GetItemsByCondition(cond, pars, []string{}, fmt.Sprintf("%s ASC", classifyOb.Cols().Sort))
		if e != nil {
			br.Msg = "获取失败"
			br.ErrMsg = fmt.Sprintf("获取子分类失败, %v", e)
			return
		}
		for _, v := range list {
			resp = append(resp, &data_manage.ChartCollectClassifyListItem{
				NodeType:     1,
				ClassifyId:   v.ChartCollectClassifyId,
				ClassifyName: v.ClassifyName,
				ParentId:     v.ParentId,
				Level:        v.Level,
				Sort:         v.Sort,
				UniqueCode:   v.UniqueCode,
			})
		}
	}

	// 查询分类下收藏的图表
	{
		list, e := data_manage.GetCollectChartInfoByClassifyId(parentId)
		if e != nil {
			br.Msg = "获取失败"
			br.ErrMsg = fmt.Sprintf("获取分类下图表失败, %v", e)
			return
		}
		for _, v := range list {
			resp = append(resp, &data_manage.ChartCollectClassifyListItem{
				NodeType:    2,
				ChartInfoId: v.ChartInfoId,
				ChartName:   v.ChartName,
				ParentId:    parentId,
				Sort:        v.Sort,
				UniqueCode:  v.UniqueCode,
			})
		}
	}
	sort.Slice(resp, func(i, j int) bool {
		return resp[i].Sort < resp[j].Sort
	})

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

// Tree
// @Title 分类树
// @Description 分类树
// @Success 200 {object} data_manage.ChartCollectClassifyItem
// @router /chart_collect/classify/tree [get]
func (this *ChartCollectClassifyController) Tree() {
	br := new(models.BaseResponse).Init()
	defer func() {
		if br.ErrMsg == "" {
			br.IsSendEmail = false
		}
		this.Data["json"] = br
		this.ServeJSON()
	}()
	sysUser := this.SysUser
	if sysUser == nil {
		br.Msg = "请登录"
		br.ErrMsg = "请登录，SysUser Is Empty"
		br.Ret = 408
		return
	}

	// 获取所有分类
	classifyOb := new(data_manage.ChartCollectClassify)
	cond := fmt.Sprintf(" AND %s = ?", classifyOb.Cols().SysUserId)
	pars := make([]interface{}, 0)
	pars = append(pars, sysUser.AdminId)
	list, e := classifyOb.GetItemsByCondition(cond, pars, []string{}, fmt.Sprintf("%s ASC, %s ASC", classifyOb.Cols().ParentId, classifyOb.Cols().Sort))
	if e != nil {
		br.Msg = "获取失败"
		br.ErrMsg = fmt.Sprintf("获取分类列表失败, %v", e)
		return
	}
	items := make([]*data_manage.ChartCollectClassifyItem, 0)
	for _, v := range list {
		items = append(items, v.Format2Item())
	}
	tree := data.GetChartCollectClassifyTreeRecursive(items, 0)

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

// Add
// @Title 新增分类
// @Description 新增分类
// @Param	request	body data_manage.ChartCollectClassifyAddReq true "type json string"
// @Success Ret=200 保存成功
// @router /chart_collect/classify/add [post]
func (this *ChartCollectClassifyController) Add() {
	br := new(models.BaseResponse).Init()
	defer func() {
		if br.ErrMsg == "" {
			br.IsSendEmail = false
		}
		this.Data["json"] = br
		this.ServeJSON()
	}()
	sysUser := this.SysUser
	if sysUser == nil {
		br.Msg = "请登录"
		br.ErrMsg = "请登录，SysUser Is Empty"
		br.Ret = 408
		return
	}
	var req data_manage.ChartCollectClassifyAddReq
	if e := json.Unmarshal(this.Ctx.Input.RequestBody, &req); e != nil {
		br.Msg = "参数解析异常"
		br.ErrMsg = fmt.Sprintf("参数解析异常: %v", e)
		return
	}
	req.ClassifyName = strings.TrimSpace(req.ClassifyName)
	if req.ClassifyName == "" {
		br.Msg = "请输入名称"
		return
	}
	classifyOb := new(data_manage.ChartCollectClassify)

	// 校验分类名称
	//{
	//	cond := fmt.Sprintf(" AND %s = ? AND %s = ?", classifyOb.Cols().ParentId, classifyOb.Cols().ClassifyName)
	//	pars := make([]interface{}, 0)
	//	pars = append(pars, req.ParentId, req.ClassifyName)
	//	count, e := classifyOb.GetCountByCondition(cond, pars)
	//	if e != nil {
	//		br.Msg = "操作失败"
	//		br.ErrMsg = fmt.Sprintf("获取分类名称重复数失败, %v", e)
	//		return
	//	}
	//	if count > 0 {
	//		br.Msg = "分类名称已存在"
	//		return
	//	}
	//}

	// 层级路径
	var levelPath string
	var rootId int
	if req.ParentId > 0 {
		parent, e := classifyOb.GetItemById(req.ParentId)
		if e != nil {
			br.Msg = "上级分类有误"
			br.ErrMsg = fmt.Sprintf("获取上级分类失败, %v", e)
			return
		}
		levelPath = parent.LevelPath
		rootId = parent.RootId
	}

	sortMax, e := classifyOb.GetSortMax(req.ParentId)
	if e != nil {
		br.Msg = "操作失败"
		br.ErrMsg = fmt.Sprintf("获取分类最大排序失败, %v", e)
		return
	}
	timestamp := strconv.FormatInt(time.Now().UnixNano(), 10)
	classifyOb.ParentId = req.ParentId
	classifyOb.ClassifyName = req.ClassifyName
	classifyOb.Level = req.Level + 1
	classifyOb.Sort = sortMax + 1
	classifyOb.SysUserId = sysUser.AdminId
	classifyOb.SysUserRealName = sysUser.RealName
	classifyOb.UniqueCode = utils.MD5(classifyOb.TableName() + "_" + timestamp)
	classifyOb.CreateTime = time.Now().Local()
	classifyOb.ModifyTime = time.Now().Local()
	if e = classifyOb.Create(); e != nil {
		br.Msg = "操作失败"
		br.ErrMsg = fmt.Sprintf("新增分类失败, %v", e)
		return
	}
	if req.ParentId > 0 {
		classifyOb.LevelPath = fmt.Sprintf("%s,%d", levelPath, classifyOb.ChartCollectClassifyId)
		classifyOb.RootId = rootId
	} else {
		classifyOb.LevelPath = fmt.Sprint(classifyOb.ChartCollectClassifyId)
		classifyOb.RootId = classifyOb.ChartCollectClassifyId
	}
	if e = classifyOb.Update([]string{classifyOb.Cols().LevelPath, classifyOb.Cols().RootId}); e != nil {
		br.Msg = "操作失败"
		br.ErrMsg = fmt.Sprintf("更新分类失败, %v", e)
		return
	}

	br.Data = classifyOb.Format2Item()
	br.Ret = 200
	br.Success = true
	br.Msg = "操作成功"
}

// Edit
// @Title 编辑分类
// @Description 编辑分类
// @Param	request	body data_manage.ChartCollectClassifyEditReq true "type json string"
// @Success Ret=200 保存成功
// @router /chart_collect/classify/edit [post]
func (this *ChartCollectClassifyController) Edit() {
	br := new(models.BaseResponse).Init()
	defer func() {
		if br.ErrMsg == "" {
			br.IsSendEmail = false
		}
		this.Data["json"] = br
		this.ServeJSON()
	}()
	sysUser := this.SysUser
	if sysUser == nil {
		br.Msg = "请登录"
		br.ErrMsg = "请登录，SysUser Is Empty"
		br.Ret = 408
		return
	}
	var req data_manage.ChartCollectClassifyEditReq
	if e := json.Unmarshal(this.Ctx.Input.RequestBody, &req); e != nil {
		br.Msg = "参数解析异常"
		br.ErrMsg = fmt.Sprintf("参数解析异常: %v", e)
		return
	}
	if req.ClassifyId < 0 {
		br.Msg = "请选择分类"
		return
	}
	req.ClassifyName = strings.TrimSpace(req.ClassifyName)
	if req.ClassifyName == "" {
		br.Msg = "请输入分类名称"
		return
	}

	classifyOb := new(data_manage.ChartCollectClassify)
	classifyItem, e := classifyOb.GetItemById(req.ClassifyId)
	if e != nil {
		if utils.IsErrNoRow(e) {
			br.Msg = "分类不存在, 请刷新页面"
			return
		}
		br.Msg = "操作失败"
		br.ErrMsg = fmt.Sprintf("获取分类失败, %v", e)
		return
	}

	// 校验分类名称
	//{
	//	cond := fmt.Sprintf(" AND %s <> ? AND %s = ?", classifyOb.Cols().PrimaryId, classifyOb.Cols().ClassifyName)
	//	pars := make([]interface{}, 0)
	//	pars = append(pars, req.ClassifyId, req.ClassifyName)
	//	count, e := classifyOb.GetCountByCondition(cond, pars)
	//	if e != nil {
	//		br.Msg = "操作失败"
	//		br.ErrMsg = fmt.Sprintf("获取分类名称重复数失败, %v", e)
	//		return
	//	}
	//	if count > 0 {
	//		br.Msg = "分类名称已存在"
	//		return
	//	}
	//}
	classifyItem.ClassifyName = req.ClassifyName
	classifyItem.ModifyTime = time.Now().Local()
	updateCols := []string{classifyOb.Cols().ClassifyName, classifyOb.Cols().ModifyTime}
	if e = classifyItem.Update(updateCols); e != nil {
		br.Msg = "操作失败"
		br.ErrMsg = fmt.Sprintf("更新分类失败, %v", e)
		return
	}

	br.Data = classifyItem.Format2Item()
	br.Ret = 200
	br.Success = true
	br.Msg = "操作成功"
}

// Remove
// @Title 删除分类
// @Description 删除分类
// @Param	request	body data_manage.ChartCollectClassifyRemoveReq true "type json string"
// @Success 200 string "操作成功"
// @router /chart_collect/classify/remove [post]
func (this *ChartCollectClassifyController) Remove() {
	br := new(models.BaseResponse).Init()
	defer func() {
		if br.ErrMsg == "" {
			br.IsSendEmail = false
		}
		this.Data["json"] = br
		this.ServeJSON()
	}()
	sysUser := this.SysUser
	if sysUser == nil {
		br.Msg = "请登录"
		br.ErrMsg = "请登录，SysUser Is Empty"
		br.Ret = 408
		return
	}
	var req data_manage.ChartCollectClassifyRemoveReq
	if e := json.Unmarshal(this.Ctx.Input.RequestBody, &req); e != nil {
		br.Msg = "参数解析异常"
		br.ErrMsg = fmt.Sprintf("参数解析异常, %v", e)
		return
	}
	if req.ClassifyId < 0 {
		br.Msg = "请选择分类"
		return
	}

	classifyOb := new(data_manage.ChartCollectClassify)
	_, e := classifyOb.GetItemById(req.ClassifyId)
	if e != nil {
		if utils.IsErrNoRow(e) {
			br.Ret = 200
			br.Success = true
			br.Msg = "操作成功"
			return
		}
		br.Msg = "操作失败"
		br.ErrMsg = fmt.Sprintf("获取分类失败, %v", e)
		return
	}

	// 获取子分类IDs
	classifyIds, e := data.GetChartCollectClassifyChildIds(req.ClassifyId, sysUser.AdminId, true)
	if e != nil {
		br.Msg = "操作失败"
		br.ErrMsg = fmt.Sprintf("获取子分类IDs失败, %v", e)
		return
	}
	if len(classifyIds) == 0 {
		br.Ret = 200
		br.Success = true
		br.Msg = "操作成功"
		return
	}

	// 移除所有子分类以及子分类所收藏的图表
	if e = classifyOb.RemoveClassifyAndCollect(classifyIds); e != nil {
		br.Msg = "操作失败"
		br.ErrMsg = fmt.Sprintf("移除分类及收藏失败, %v", e)
		return
	}

	br.Ret = 200
	br.Success = true
	br.Msg = "操作成功"
}

// Move
// @Title 移动分类
// @Description 移动分类
// @Param	request	body data_manage.ChartCollectClassifyMoveReq true "type json string"
// @Success 200 string "操作成功"
// @router /chart_collect/classify/move [post]
func (this *ChartCollectClassifyController) Move() {
	br := new(models.BaseResponse).Init()
	defer func() {
		if br.ErrMsg == "" {
			br.IsSendEmail = false
		}
		this.Data["json"] = br
		this.ServeJSON()
	}()
	sysUser := this.SysUser
	if sysUser == nil {
		br.Msg = "请登录"
		br.ErrMsg = "请登录，SysUser Is Empty"
		br.Ret = 408
		return
	}
	var req data_manage.ChartCollectClassifyMoveReq
	if e := json.Unmarshal(this.Ctx.Input.RequestBody, &req); e != nil {
		br.Msg = "参数解析异常！"
		br.ErrMsg = fmt.Sprintf("参数解析失败, %v", e)
		return
	}

	classifyOb := new(data_manage.ChartCollectClassify)
	item, e := classifyOb.GetItemById(req.ClassifyId)
	if e != nil {
		if utils.IsErrNoRow(e) {
			br.Msg = "分类不存在, 请刷新页面"
			return
		}
		br.Msg = "操作失败"
		br.ErrMsg = fmt.Sprintf("获取分类失败, %v", e)
		return
	}

	updateCol := make([]string, 0)
	//如果有传入 上一个兄弟节点分类id
	if req.PrevClassifyId > 0 {
		prevClassify, err := data_manage.GetChartCollectClassifyById(sysUser.AdminId, req.PrevClassifyId)
		if err != nil {
			br.Msg = "移动失败"
			br.ErrMsg = "获取上一个兄弟节点分类信息失败,Err:" + err.Error()
			return
		}

		//如果是移动在两个兄弟节点之间
		if req.NextClassifyId > 0 {
			//下一个兄弟节点
			nextClassify, err := data_manage.GetChartCollectClassifyById(sysUser.AdminId, req.NextClassifyId)
			if err != nil {
				br.Msg = "移动失败"
				br.ErrMsg = "获取下一个兄弟节点分类信息失败,Err:" + err.Error()
				return
			}
			//如果上一个兄弟与下一个兄弟的排序权重是一致的，那么需要将下一个兄弟（以及下个兄弟的同样排序权重）的排序权重+2，自己变成上一个兄弟的排序权重+1
			if prevClassify.Sort == nextClassify.Sort || prevClassify.Sort == item.Sort {
				//变更兄弟节点的排序
				updateSortStr := `sort + 2`
				_ = data_manage.UpdateChartCollectClassifySortByClassifyId(sysUser.AdminId, prevClassify.ChartCollectClassifyId, prevClassify.Sort, updateSortStr)
			} else {
				//如果下一个兄弟的排序权重正好是上个兄弟节点的下一层，那么需要再加一层了
				if nextClassify.Sort-prevClassify.Sort == 1 {
					//变更兄弟节点的排序
					updateSortStr := `sort + 1`
					_ = data_manage.UpdateChartCollectClassifySortByClassifyId(sysUser.AdminId, 0, prevClassify.Sort, updateSortStr)
				}
			}
		}

		item.Sort = prevClassify.Sort + 1
		item.ModifyTime = time.Now()
		updateCol = append(updateCol, "Sort", "ModifyTime")
	} else {
		firstClassify, err := data_manage.GetFirstChartCollectClassifyByAdminId(sysUser.AdminId)
		if err != nil && !utils.IsErrNoRow(err) {
			br.Msg = "移动失败"
			br.ErrMsg = "获取获取当前账号下的排序第一条的分类信息失败,Err:" + err.Error()
			return
		}

		//如果该分类下存在其他分类，且第一个其他分类的排序等于0，那么需要调整排序
		if firstClassify != nil && firstClassify.ChartCollectClassifyId > 0 && firstClassify.Sort == 0 {
			updateSortStr := ` sort + 1 `
			_ = data_manage.UpdateChartCollectClassifySortByClassifyId(sysUser.AdminId, firstClassify.ChartCollectClassifyId-1, 0, updateSortStr)
		}

		item.Sort = 0 //那就是排在第一位
		item.ModifyTime = time.Now()
		updateCol = append(updateCol, "Sort", "ModifyTime")
	}

	if len(updateCol) > 0 {
		if e = item.Update(updateCol); e != nil {
			br.Msg = "操作失败"
			br.ErrMsg = fmt.Sprintf("更新分类失败, %v", e)
			return
		}
	}

	br.Ret = 200
	br.Success = true
	br.Msg = "操作成功"
}