<?php

class SeederUtil
{
    public static function saveList($model, $items, $identifierKeys = [], $deleteIfNotPresent = false)
    {
        if (is_string($identifierKeys)) {

            $identifierKeys = [$identifierKeys];
        }

        $ids = [];

        foreach ($items as $item) {

            $identifiers = [];

            foreach ($identifierKeys as $key) {

                $identifiers[$key] = $item[$key];
            }

            if (empty($identifiers)) {

                $ids[] = $model::create($item)->id;

                continue;
            }

            $ids[] = $model::updateOrCreate($identifiers, $item)->id;
        }

        if ($deleteIfNotPresent && !empty($ids)) {

            $idsToDelete = $model::whereNotIn('id', $ids)->pluck('id');

            if (!empty($idsToDelete)) {

                $model::destroy($idsToDelete);
            }
        }
    }
}