<?php
namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Throwable;

class SystemSetting extends Model
{
    protected $fillable = [
        'key',
        'value',
    ];

    public static function getValue(string $key, mixed $default = null): mixed
    {
        if (! static::settingsTableExists()) {
            return $default;
        }

        try {
            $setting = static::query()->where('key', $key)->value('value');
        } catch (Throwable) {
            return $default;
        }

        if ($setting === null) {
            return $default;
        }

        $decoded = json_decode($setting, true);

        return json_last_error() === JSON_ERROR_NONE ? $decoded : $setting;
    }

    public static function setValue(string $key, mixed $value): void
    {
        if (! static::settingsTableExists()) {
            return;
        }

        $storedValue = is_string($value) ? $value : json_encode($value);

        static::query()->updateOrCreate(
            ['key' => $key],
            ['value' => $storedValue]
        );
    }

    public static function bool(string $key, bool $default = false): bool
    {
        return filter_var(static::getValue($key, $default), FILTER_VALIDATE_BOOL);
    }

    protected static function settingsTableExists(): bool
    {
        try {
            $model = new static();

            return $model->getConnection()->getSchemaBuilder()->hasTable($model->getTable());
        } catch (Throwable) {
            return false;
        }
    }
}