package services

import (
	"eta_gn/eta_api/models"
	"eta_gn/eta_api/utils"
	"fmt"
	"time"
)

func GetChartPermissionList(cond string, pars []interface{}) (permissionList []*models.ChartPermission, err error) {
	ob := new(models.ChartPermission)
	permissionList, err = ob.GetItemsByCondition(cond, pars)
	if err != nil {
		err = fmt.Errorf("获取权限列表失败, Err: %s", err.Error())
		return
	}

	return
}

func AddChartPermission(req models.PermissionAddReq) (err error, errMsg string) {
	ob := new(models.ChartPermission)
	existCond := ` AND permission_name = ? AND parent_id = ?`
	existPars := make([]interface{}, 0)
	existPars = append(existPars, req.PermissionName, req.ParentId)
	exist, e := ob.GetItemByCondition(existCond, existPars)
	if e != nil && !utils.IsErrNoRow(e) {
		errMsg = "操作失败"
		err = fmt.Errorf("获取重名品种权限失败, Err: " + e.Error())
		return
	}
	if exist != nil && exist.ChartPermissionId > 0 {
		errMsg = "品种名称已存在"
		err = fmt.Errorf("品种名称已存在")
		return
	}

	maxSort, e := ob.GetMaxSort()
	if e != nil {
		errMsg = "查询品种排序失败"
		err = fmt.Errorf("查询品种排序失败, Err: " + e.Error())
		return
	}
	parentPermissionName := ""
	if req.ParentId > 0 {
		parent, e := ob.GetItemById(req.ParentId)
		if e != nil {
			errMsg = "查询父级品种失败"
			err = fmt.Errorf("查询父级品种失败, Err: " + e.Error())
			return
		}
		if parent.ChartPermissionId == 0 {
			errMsg = "请选择正确的父级品种"
			err = fmt.Errorf("请选择正确的父级品种")
			return
		}
		if parent.ParentId != 0 {
			errMsg = "只能选择一级品种作为父级品种"
			err = fmt.Errorf("只能选择一级品种作为父级品种")
			return
		}
		parentPermissionName = parent.PermissionName
	} else {
		parentPermissionName = req.PermissionName
	}
	ob.ChartPermissionName = req.PermissionName
	ob.PermissionName = req.PermissionName
	ob.Remark = req.PermissionName
	ob.ParentId = req.ParentId
	ob.ProductId = 1
	ob.IsPublic = req.IsPublic
	ob.Enabled = req.Enabled
	ob.Sort = maxSort + 1

	ob.CreatedTime = time.Now()
	ob.LastUpdatedTime = time.Now()
	if ob.ProductId == 1 {
		ob.ProductName = "ficc"
	} else {
		ob.ProductName = "权益"
	}
	ob.ProductPermissionName = ob.ProductName + ob.PermissionName
	ob.ClassifyName = parentPermissionName
	if e = ob.Create(); e != nil {
		errMsg = "操作失败"
		err = fmt.Errorf("新增品种权限失败, Err: " + e.Error())
		return
	}
	if req.ParentId > 0 && req.Enabled == 1 {
		err = ob.SetEnabledByChartPermissionId(req.ParentId, req.Enabled)
		if err != nil {
			errMsg = "更新品种启用禁用状态失败"
			err = fmt.Errorf("更新品种启用禁用状态失败, Err: " + err.Error())
			return
		}
	}
	go func() {
		_, _ = ChartFiccPermissionSync()
	}()
	return
}

func EditChartPermission(req models.PermissionEditReq) (err error, errMsg string) {
	ob := new(models.ChartPermission)
	item, e := ob.GetItemById(req.PermissionId)
	if e != nil {
		errMsg = "查询品种信息失败"
		err = fmt.Errorf("查询品种信息失败, Err: " + e.Error())
		return
	}
	if item.ChartPermissionId == 0 {
		errMsg = "请选择正确的品种"
		err = fmt.Errorf("请选择正确的品种")
		return
	}
	if item.PermissionName != req.PermissionName {
		existCond := ` AND permission_name = ? AND parent_id = ? AND chart_permission_id !=?`
		existPars := make([]interface{}, 0)
		existPars = append(existPars, req.PermissionName, item.ParentId, req.PermissionId)
		exist, e := ob.GetItemByCondition(existCond, existPars)
		if e != nil && !utils.IsErrNoRow(e) {
			errMsg = "操作失败"
			err = fmt.Errorf("获取重名品种权限失败, Err: " + e.Error())
			return
		}
		if exist != nil && exist.ChartPermissionId > 0 {
			errMsg = "品种名称已存在"
			err = fmt.Errorf("品种名称已存在")
			return
		}
	}

	parentPermissionName := ""
	if req.ParentId > 0 {
		parent, e := ob.GetItemById(req.ParentId)
		if e != nil {
			errMsg = "查询父级品种失败"
			err = fmt.Errorf("查询父级品种失败, Err: " + e.Error())
			return
		}
		if parent.ChartPermissionId == 0 {
			errMsg = "请选择正确的父级品种"
			err = fmt.Errorf("请选择正确的父级品种")
			return
		}
		if parent.ParentId != 0 {
			errMsg = "只能选择一级品种作为父级品种"
			err = fmt.Errorf("只能选择一级品种作为父级品种")
			return
		}
		parentPermissionName = parent.PermissionName
	} else {
		parentPermissionName = req.PermissionName
	}
	updateCol := []string{"PermissionName", "IsPublic", "ParentId", "ClassifyName", "LastUpdatedTime", "ProductPermissionName"}
	if item.ProductId == 1 {
		item.Remark = req.PermissionName //remark 在权益品种中用来区分主客观
		updateCol = append(updateCol, "Remark")
	}
	item.PermissionName = req.PermissionName
	item.IsPublic = req.IsPublic
	item.ParentId = req.ParentId
	item.ClassifyName = parentPermissionName
	item.ProductPermissionName = item.ProductName + item.PermissionName
	item.LastUpdatedTime = time.Now()
	err = item.Update(updateCol)
	if err != nil {
		errMsg = "更新失败"
		err = fmt.Errorf("更新品种失败, Err: " + err.Error())
		return
	}

	if item.ParentId == 0 {
		if len(req.PublicPermissionIds) > 0 {
			err = ob.SetIsPublic(req.PublicPermissionIds, item.ChartPermissionId, 1)
			if err != nil {
				errMsg = "更新品种公有权限失败"
				err = fmt.Errorf("更新品种公有权限失败, Err: " + err.Error())
				return
			}
		}
		err = ob.UpdateClassifyNameByParentId(item.ChartPermissionId, req.PermissionName)
		if err != nil {
			errMsg = "更新品种启用禁用状态失败"
			err = fmt.Errorf("更新品种启用禁用状态失败, Err: " + err.Error())
			return
		}
	} else if item.ParentId > 0 {
		if item.Enabled == 1 {
			err = ob.SetEnabledByChartPermissionId(item.ParentId, item.Enabled)
			if err != nil {
				errMsg = "更新品种启用禁用状态失败"
				err = fmt.Errorf("更新品种启用禁用状态失败, Err: " + err.Error())
				return
			}
		}
	}
	go func() {
		_, _ = ChartFiccPermissionSync()
	}()
	return
}

func SetEnabledChartPermission(req models.PermissionEnabledReq) (err error, errMsg string) {
	ob := new(models.ChartPermission)
	item, e := ob.GetItemById(req.PermissionId)
	if e != nil {
		errMsg = "查询品种信息失败"
		err = fmt.Errorf("查询品种信息失败, Err: " + e.Error())
		return
	}
	if item.ChartPermissionId == 0 {
		errMsg = "请选择正确的品种"
		err = fmt.Errorf("请选择正确的品种")
		return
	}
	item.Enabled = req.Enabled
	item.LastUpdatedTime = time.Now()
	err = item.Update([]string{"Enabled", "LastUpdatedTime"})
	if err != nil {
		errMsg = "更新失败"
		err = fmt.Errorf("更新品种失败, Err: " + err.Error())
		return
	}

	if item.ParentId == 0 {
		err = ob.SetEnabledByParentId(item.ChartPermissionId, req.Enabled)
		if err != nil {
			errMsg = "更新品种启用禁用状态失败"
			err = fmt.Errorf("更新品种启用禁用状态失败, Err: " + err.Error())
			return
		}

	} else if item.ParentId > 0 {
		if req.Enabled == 1 {
			err = ob.SetEnabledByChartPermissionId(item.ParentId, req.Enabled)
			if err != nil {
				errMsg = "更新品种启用禁用状态失败"
				err = fmt.Errorf("更新品种启用禁用状态失败, Err: " + err.Error())
				return
			}
		}
	}
	go func() {
		_, _ = ChartFiccPermissionSync()
	}()
	return
}

func MoveChartPermission(req models.PermissionMoveReq) (err error, errMsg string) {
	ob := new(models.ChartPermission)
	chartPermissionId := req.PermissionId
	prevChartPermissionId := req.PrevPermissionId
	nextChartPermissionId := req.NextPermissionId

	var (
		permissionInfo *models.ChartPermission
		prevPermission *models.ChartPermission
		nextPermission *models.ChartPermission

		prevSort int
		nextSort int
	)

	permissionInfo, err = ob.GetItemById(chartPermissionId)
	if err != nil {
		if utils.IsErrNoRow(err) {
			errMsg = "当前品种不存在"
			err = fmt.Errorf("获取品种信息失败,Err:" + err.Error())
			return
		}
		errMsg = "移动失败"
		err = fmt.Errorf("获取分类信息失败,Err:" + err.Error())
		return
	} else if permissionInfo.ChartPermissionId == 0 {
		errMsg = "当前品种不存在"
		err = fmt.Errorf("获取品种信息失败,Err:" + err.Error())
		return
	}

	parentChartPermissionId := permissionInfo.ParentId
	productId := permissionInfo.ProductId
	if prevChartPermissionId > 0 {
		prevPermission, err = ob.GetItemById(prevChartPermissionId)
		if err != nil {
			errMsg = "移动失败"
			err = fmt.Errorf("获取上一个兄弟节点分类信息失败,Err:" + err.Error())
			return
		}
		prevSort = prevPermission.Sort
	}

	if nextChartPermissionId > 0 {
		nextPermission, err = ob.GetItemById(nextChartPermissionId)
		if err != nil {
			errMsg = "移动失败"
			err = fmt.Errorf("获取下一个兄弟节点分类信息失败,Err:" + err.Error())
			return
		}
		nextSort = nextPermission.Sort
	}

	err, errMsg = moveChartPermission(permissionInfo, prevPermission, nextPermission, parentChartPermissionId, prevSort, nextSort, productId)
	return
}

func moveChartPermission(permissionInfo, prevPermission, nextPermission *models.ChartPermission, parentId, prevSort, nextSort, productId int) (err error, errMsg string) {
	ob := new(models.ChartPermission)
	updateCol := make([]string, 0)

	if permissionInfo.ParentId != parentId {
		errMsg = "移动失败"
		err = fmt.Errorf("不支持目录层级变更")
		return
	}

	if prevSort > 0 {
		if nextSort > 0 {
			if prevSort == nextSort || prevSort == permissionInfo.Sort {
				updateSortStr := `sort + 2`

				if prevPermission != nil {
					_ = models.UpdateChartPermissionSortByParentId(parentId, prevPermission.ChartPermissionId, prevPermission.Sort, updateSortStr, productId)
				} else {
					_ = models.UpdateChartPermissionSortByParentId(parentId, 0, prevSort, updateSortStr, productId)
				}

			} else {
				if nextSort-prevSort == 1 {
					updateSortStr := `sort + 1`

					if prevPermission != nil {
						_ = models.UpdateChartPermissionSortByParentId(parentId, prevPermission.ChartPermissionId, prevSort, updateSortStr, productId)
					} else {
						_ = models.UpdateChartPermissionSortByParentId(parentId, 0, prevSort, updateSortStr, productId)
					}

				}
			}
		}

		permissionInfo.Sort = prevSort + 1
		permissionInfo.LastUpdatedTime = time.Now()
		updateCol = append(updateCol, "Sort", "LastUpdatedTime")
	} else if prevPermission == nil && nextPermission == nil && parentId > 0 {
		var maxSort int
		maxSort, err = ob.GetMaxSortByParentId(parentId)
		if err != nil {
			errMsg = "移动失败"
			err = fmt.Errorf("查询组内排序信息失败,Err:" + err.Error())
			return
		}
		permissionInfo.Sort = maxSort + 1 //那就是排在组内最后一位
		permissionInfo.LastUpdatedTime = time.Now()
		updateCol = append(updateCol, "Sort", "LastUpdatedTime")
	} else {
		firstPermission, tmpErr := ob.GetFirstChartPermissionByParentId(parentId)
		if tmpErr != nil && !utils.IsErrNoRow(tmpErr) {
			errMsg = "移动失败"
			err = fmt.Errorf("获取获取当前父级分类下的排序第一条的分类信息失败,Err:" + tmpErr.Error())
			return
		}

		if firstPermission != nil && firstPermission.ChartPermissionId > 0 && firstPermission.Sort == 0 {
			updateSortStr := ` sort + 1 `
			_ = models.UpdateChartPermissionSortByParentId(parentId, firstPermission.ChartPermissionId-1, 0, updateSortStr, productId)
		}

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

	if len(updateCol) > 0 {
		err = permissionInfo.Update(updateCol)
		if err != nil {
			errMsg = "移动失败"
			err = fmt.Errorf("修改失败,Err:" + err.Error())
			return
		}
	}

	go func() {
		_, _ = ChartFiccPermissionSync()
	}()
	return
}