<?php
/**
 * 家庭级键值对设置。
 */

declare(strict_types=1);

namespace App;

final class Setting
{
    public static function get(int $familyId, string $key, $default = null)
    {
        $st = Database::get()->prepare('SELECT v FROM settings WHERE family_id = ? AND k = ?');
        $st->execute([$familyId, $key]);
        $v = $st->fetchColumn();
        return $v === false ? $default : $v;
    }

    public static function set(int $familyId, string $key, string $value): void
    {
        $st = Database::get()->prepare(
            'INSERT INTO settings (family_id, k, v) VALUES (?, ?, ?)
             ON DUPLICATE KEY UPDATE v = VALUES(v)'
        );
        $st->execute([$familyId, $key, $value]);
    }
}