<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\Crypt;

/**
 * @property string $id
 * @property int|null $owner_user_id
 * @property string|null $anonymous_token_hash
 * @property int $version_no
 * @property string $create_key_hash
 * @property string $create_payload_hash
 * @property string $snapshot_sha256
 * @property string $personal_snapshot
 * @property string $economic_snapshot
 * @property Carbon|null $deleted_at
 * @property Carbon|null $expires_at
 * @property string|null $claimed_token_hash
 * @property Carbon|null $created_at
 * @property Carbon|null $updated_at
 */
class SimulationFormDraft extends Model
{
    public $incrementing = false;

    protected $table = 'simulation_form_drafts';

    protected $keyType = 'string';

    protected $fillable = [
        'id', 'owner_user_id', 'anonymous_token_hash', 'version_no', 'create_key_hash', 'create_payload_hash', 'snapshot_sha256',
        'personal_snapshot', 'economic_snapshot', 'deleted_at', 'expires_at', 'claimed_token_hash',
    ];

    protected function casts(): array
    {
        return ['version_no' => 'integer', 'deleted_at' => 'immutable_datetime', 'expires_at' => 'immutable_datetime'];
    }

    /** @param array<string,mixed> $snapshot */
    public static function encryptSnapshot(array $snapshot): string
    {
        return Crypt::encryptString(json_encode($snapshot, JSON_THROW_ON_ERROR | JSON_UNESCAPED_UNICODE));
    }

    /** @return array<string,mixed> */
    public static function decryptSnapshot(string $snapshot): array
    {
        $decoded = json_decode(Crypt::decryptString($snapshot), true, 32, JSON_THROW_ON_ERROR);

        return is_array($decoded) ? $decoded : [];
    }
}