package utils

import (
	"fmt"
	"math"

	"github.com/gofiber/fiber/v2"
)

func Pagination(c *fiber.Ctx, total int64, page int, limit int) (*fiber.Map, *fiber.Map) {
	totalPages := int(math.Ceil(float64(total) / float64(limit)))
	paginationInformation := fiber.Map{
		"page":        page,
		"limit":       limit,
		"total":       total,
		"total_pages": totalPages,
	}

	paginationLinks := fiber.Map{
		"self": fiber.Map{
			"href": fmt.Sprintf("%s?page=%d&limit=%d", c.Path(), page, limit),
		},
		"first": fiber.Map{
			"href": fmt.Sprintf("%s?page=1&limit=%d", c.Path(), limit),
		},
		"last": fiber.Map{
			"href": fmt.Sprintf("%s?page=%d&limit=%d", c.Path(), totalPages, limit),
		},
		"next": nil,
		"prev": nil,
	}

	if page > 1 {
		paginationLinks["prev"] = fiber.Map{
			"href": fmt.Sprintf("%s?page=%d&limit=%d", c.Path(), page-1, limit),
		}
	}

	if page < totalPages {
		paginationLinks["next"] = fiber.Map{
			"href": fmt.Sprintf("%s?page=%d&limit=%d", c.Path(), page+1, limit),
		}
	}

	return &paginationInformation, &paginationLinks
}