<?php

namespace App\Lib\Helpers;

use Illuminate\Container\Container;
use Illuminate\Pagination\LengthAwarePaginator;
use Illuminate\Pagination\Paginator;
use Illuminate\Support\Collection;

class CollectionHelper
{
    /**
     * Paginate a collection.
     *
     * @param \Illuminate\Support\Collection $results
     * @param integer                        $pageSize
     * @return \Illuminate\Pagination\LengthAwarePaginator
     */
    public static function paginate(Collection $results, int $pageSize): \Illuminate\Pagination\LengthAwarePaginator
    {
        $page = Paginator::resolveCurrentPage('page');

        return self::paginateManually($results, $pageSize, $page);
    }

    /**
     * Paginate a collection.
     *
     * @param \Illuminate\Support\Collection $results
     * @param integer                        $pageSize
     * @param integer                        $page
     * @return \Illuminate\Pagination\LengthAwarePaginator
     */
    public static function paginateManually(
        Collection $results,
        int $pageSize,
        int $page = 1
    ): \Illuminate\Pagination\LengthAwarePaginator {
        $total = $results->count();

        return self::paginator($results->forPage($page, $pageSize), $total, $pageSize, $page, [
            'path'     => Paginator::resolveCurrentPath(),
            'pageName' => 'page',
        ]);
    }

    /**
     * Create a new length-aware paginator instance.
     *
     * @param  \Illuminate\Support\Collection $items
     * @param  integer                        $total
     * @param  integer                        $perPage
     * @param  integer                        $currentPage
     * @param  array                          $options
     * @return \Illuminate\Pagination\LengthAwarePaginator
     */
    protected static function paginator(
        Collection $items,
        int $total,
        int $perPage,
        int $currentPage,
        array $options
    ): \Illuminate\Pagination\LengthAwarePaginator {
        return Container::getInstance()->makeWith(LengthAwarePaginator::class, [
            'items'       => $items,
            'total'       => $total,
            'perPage'     => $perPage,
            'currentPage' => $currentPage,
            'options'     => $options
        ]);
    }

    /**
     * Get an array of views for each recipe models given.
     *
     * @param \Illuminate\Pagination\LengthAwarePaginator $models
     * @param string                                      $path
     * @param string                                      $key
     * @return array
     */
    public static function getViewsFromPaginateModels(
        LengthAwarePaginator $models,
        string $path,
        string $key
    ): array {
        return $models->through(function ($model) use ($path, $key) {
            return view($path, [$key => $model])->render();
        })->toArray();
    }

    /**
     * Get an array of views for each item in collection given.
     *
     * @param \Illuminate\Support\Collection $collection
     * @param string                         $path
     * @param string                         $key
     * @return array
     */
    public static function getViewsFromCollection(Collection $collection, string $path, string $key): array
    {
        return $collection->map(function ($item) use ($path, $key) {
            return view($path, [$key => $item])->render();
        })->toArray();
    }
}