<?php
namespace App\Models;

use Core\Model;

class Setting extends Model
{
    protected $table = 'settings';
    protected $orderBy = 'id';

    /** 读取单个设置 */
    public function get(string $key, $default = '')
    {
        $row = $this->where('skey', $key);
        return $row ? $row['sval'] : $default;
    }

    /** 批量读取为 [skey => sval] */
    public function allKV(): array
    {
        $out = [];
        foreach ($this->all() as $r) $out[$r['skey']] = $r['sval'];
        return $out;
    }

    /** 设置（不存在则新增） */
    public function set(string $key, $val, string $group = 'site'): void
    {
        $row = $this->where('skey', $key);
        if ($row) {
            $this->update($row['id'], ['sval' => $val, 'sgroup' => $group]);
        } else {
            $this->insert(['skey' => $key, 'sval' => $val, 'sgroup' => $group]);
        }
    }

    /** 批量保存 */
    public function saveMany(array $pairs, string $group = 'site'): void
    {
        foreach ($pairs as $k => $v) $this->set($k, $v, $group);
    }
}