package require

type CommonPaginationReq struct {
	Page int `form:"page" json:"page" swaggerignore:"true" `
	Size int `form:"size" json:"size" swaggerignore:"true" `
}

func (req CommonPaginationReq) ToParam() *PaginationParam {
	p := new(PaginationParam)
	p.Size = req.Size
	p.Page = req.Page
	return p
}

type PaginationParam struct {
	CommonPaginationReq
	// rsp total page_size
	Total int64
}

func (p *PaginationParam) Enable() bool {
	return p.Page > 0 && p.Size > 0
}
func (p *PaginationParam) Offset() int {
	return (p.Page - 1) * p.Size
}