paginate

type APIServiceNextPageInfo struct {
	HasNext    bool
	NextFromId int64
}

type INextPageInfo interface {
	ToMap() map[string]interface{}
}

type PageInfo struct {
	Page         int
	FromId       int
	CountPerPage int
	Mode         string
	Direction    string
}

type PaginateResult struct {
	HasPrev      bool
	HasNext      bool
	HasHead      bool
	HasTail      bool
	Prev         int
	Next         int
	CurPage      int
	MaxPage      int
	TotalCount   int64
	DisplayPages []int

	Offset      int
	CountInPage int
}