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package meta
import (
"shrine/types/common"
"strconv"
"github.com/gofiber/fiber/v2"
"gorm.io/gorm"
)
type Pagination struct {
Page int
PerPage int
}
func Paginate(context *fiber.Ctx) Pagination {
request := Request(context)
pageStr, _ := request.Query("page")
page, _ := strconv.Atoi(pageStr)
if page < 1 {
page = 1
}
perPageStr, _ := request.Query("per_page")
perPage, _ := strconv.Atoi(perPageStr)
if perPage < 1 || perPage > 50 {
perPage = 20
}
return Pagination{Page: page, PerPage: perPage}
}
func (p Pagination) Apply(query *gorm.DB) *gorm.DB {
return query.Offset((p.Page - 1) * p.PerPage).Limit(p.PerPage)
}
func (p Pagination) Response(items any, total int64) common.PaginatedResponse {
totalPages := int(total) / p.PerPage
if int(total)%p.PerPage > 0 {
totalPages++
}
return common.PaginatedResponse{
Items: items,
Total: total,
Page: p.Page,
PerPage: p.PerPage,
TotalPages: totalPages,
}
}
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