<?php

declare(strict_types=1);

namespace ACA\ACF\Search\Comparison;

use AC\Helper\Select\Options\Paginated;
use AC\Meta\Query;
use ACP;
use ACP\Helper\Select\User\LabelFormatter\UserName;
use ACP\Helper\Select\User\PaginatedFactory;
use ACP\Search\Comparison\SearchableValues;
use ACP\Search\Operators;

class User extends ACP\Search\Comparison\Meta
    implements SearchableValues
{

    protected ?Query $query = null;

    use ACP\Search\UserValuesTrait;

    public function __construct(string $meta_key, ?Query $query = null)
    {
        $operators = new Operators([
            Operators::EQ,
            Operators::NEQ,
            Operators::CURRENT_USER,
            Operators::IS_EMPTY,
            Operators::NOT_IS_EMPTY,
        ]);

        $this->query = $query;

        parent::__construct($operators, $meta_key);
    }

    protected function get_label_formatter(): UserName
    {
        return new UserName();
    }

    public function format_label($value): string
    {
        $user = get_userdata($value);

        return $user
            ? $this->get_label_formatter()->format_label($user)
            : '';
    }

    public function get_values(string $search, int $page): Paginated
    {
        $include = [];
        if ($this->query) {
            $include = $page === 1 ? $this->get_used_user_ids() : [];
        }

        return (new PaginatedFactory())->create([
            'include' => $include,
            'paged'   => $page,
            'search'  => $search,
        ], $this->get_label_formatter());
    }

    public function get_used_user_ids(): array
    {
        return array_filter($this->query->get(), 'is_numeric');
    }

}