package postgres

import "time"

type RequestPagination struct {
	PageNumber    int64     `json:"page_number"`
	LastTimeStamp time.Time `json:"last_time_stamp"`
}

type ResponsePagination struct {
	PageNumber           int64 `json:"page_number"`
	PageSize             int64 `json:"page_size"`
	ShowableNextPagesNum int64 `json:"showable_next_pages_num"`
}

type DBPagination struct {
	LastTimeStamp time.Time
	PageNumber    int64
	MaxNextPages  int64
	PageSize      int64
}

func ComputeNextPages(listLen int64, pageSize int64, maxNextPages int64) int64 {

	pages := float64(listLen) / float64(pageSize)

	for i := maxNextPages - 1; i >= 0; i-- {
		if pages > float64(i) {
			return i + 1
		}
	}

	return 0

}