package frame

/*var permissions []*TreePermission*/

const (
	DIR  = 1 //目录
	MENU = 2 //菜单
	AUTH = 3 //权限
)

// 权限输出
type TreePermission struct {
	Label    string            `json:"label"`
	Id       string            `json:"id"`
	Children []*TreePermission `json:"children"`
	Pid      string            `json:"pid"`
	Cat      int               `json:"cat"`
}

type Permission struct {
	Cat   int
	Code  string
	Label string
}

/*func GetPermissions() []*TreePermission {
	return permissions
}*/

func (this *Permission) add(permissions *[]*TreePermission, parent *Permission, cat int, code string, label string) *[]*TreePermission {
	//判断是否查找到父节点，未查找到就直接放入数组中
	if parent == nil {
		parentVo := &TreePermission{
			Label:    label,
			Id:       code,
			Children: nil,
			Pid:      "0",
			Cat:      cat,
		}
		*permissions = append(*permissions, parentVo)

	} else {
		//找到code为parent的节点并添加进去
		parentVo := this.FindParent(*permissions, parent)
		if parentVo != nil {
			child := &TreePermission{
				Label:    label,
				Id:       code,
				Children: nil,
				Pid:      parentVo.Id,
				Cat:      cat,
			}
			if parentVo.Children == nil {
				childs := make([]*TreePermission, 0)
				parentVo.Children = childs
			}
			parentVo.Children = append(parentVo.Children, child)
			/*	}*/
		}
	}
	return permissions
}

func (this *Permission) FindParent(permissions []*TreePermission, parent *Permission) *TreePermission {
	var vo *TreePermission
	for _, item := range permissions {
		if item.Id == parent.Code && item.Label == parent.Label {
			vo = item
		}
		if vo == nil {
			if item.Children != nil && len(item.Children) > 0 {
				vo = this.FindSubParent(item.Children, parent)
			}
		}
	}
	return vo
}

func (this *Permission) FindSubParent(permissions []*TreePermission, parent *Permission) *TreePermission {
	for _, item := range permissions {
		if item.Id == parent.Code {
			return item
		}
		if item.Children != nil && len(item.Children) > 0 {
			for _, child := range item.Children {
				if child.Id == parent.Code && child.Label == parent.Label {
					return child
				}
				if child.Children != nil && len(child.Children) > 0 {
					return this.FindSubParent(child.Children, parent)
				}
			}
		}
	}
	return nil
}