<?php

namespace App\Models;

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

class Setting extends Model
{
    protected $primaryKey = 'key';

    public $incrementing = false;

    protected $keyType = 'string';

    protected $fillable = [
        'key',
        'value',
    ];

    /**
     * @var array<string, mixed>|null
     */
    protected static ?array $runtimeCache = null;

    public static function flushCache(): void
    {
        static::$runtimeCache = null;
    }

    public static function get(string $key, mixed $default = null): mixed
    {
        if (static::$runtimeCache === null) {
            try {
                static::$runtimeCache = static::query()->pluck('value', 'key')->all();
            } catch (Throwable) {
                return $default;
            }
        }

        if (! array_key_exists($key, static::$runtimeCache) || static::$runtimeCache[$key] === null) {
            return $default;
        }

        $val = static::$runtimeCache[$key];

        if (is_string($val) && (str_starts_with($val, '{') || str_starts_with($val, '['))) {
            $decoded = json_decode($val, true);
            if (json_last_error() === JSON_ERROR_NONE) {
                return $decoded;
            }
        }

        return $val;
    }

    public static function set(string $key, mixed $value): static
    {
        $encoded = is_array($value) || is_object($value) ? json_encode($value) : (string) $value;

        if (static::$runtimeCache !== null) {
            static::$runtimeCache[$key] = $encoded;
        }

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

    public static function forget(string $key): bool
    {
        if (static::$runtimeCache !== null) {
            unset(static::$runtimeCache[$key]);
        }

        return (bool) static::query()->where('key', $key)->delete();
    }
}