package response

type PaginationHelper struct{}

func NewPaginationHelper() *PaginationHelper {
	return &PaginationHelper{}
}

func (p *PaginationHelper) BuildPagingMeta(offset, limit int, total int64) *PagingMeta {
	page := 1
	if limit > 0 {
		page = (offset / limit) + 1
	}

	return &PagingMeta{
		Page:  page,
		Total: total,
		Limit: limit,
	}
}

func (p *PaginationHelper) calculateTotalPages(total int64, limit int) int {
	if limit <= 0 {
		return 1
	}
	return int((total + int64(limit) - 1) / int64(limit))
}

func (p *PaginationHelper) hasNextPage(offset, limit int, total int64) bool {
	if limit <= 0 {
		return false
	}
	return int64(offset+limit) < total
}