Add pagination elements

import PaginationControls from "./PaginationControls.js"

const ELEMENTS_PER_PAGE = 25

export default {

    view(vnode) {

        const elements = vnode.attrs.elements.toArray()

        const totalPages = Math.ceil(elements.length / ELEMENTS_PER_PAGE)

        const startIndex = (this.currentPageIndex || 0) * ELEMENTS_PER_PAGE

        return [

            elements.slice(startIndex, startIndex + ELEMENTS_PER_PAGE),

            m(PaginationControls, { currentPage: (this.currentPageIndex || 0) + 1, totalPages, onPageChange: i => this.currentPageIndex = i - 1 })

        ]

    }

}