<?php

declare(strict_types=1);

namespace App\Exceptions;

use App\Enums\HoldStatus;
use App\Models\Hold;
use RuntimeException;

/**
 * Доменные отказы бронирования. Сопоставление с ответами HTTP — в bootstrap/app.php.
 */
final class SlotBookingException extends RuntimeException
{
    private function __construct(
        public readonly string $reason,
        public readonly int $status,
        string $message,
    ) {
        parent::__construct($message);
    }

    public static function capacityExhausted(int $slotId): self
    {
        return new self(
            'capacity_exhausted',
            409,
            "Slot {$slotId} has no remaining capacity.",
        );
    }

    public static function holdNotActive(Hold $hold): self
    {
        $reason = $hold->status === HoldStatus::Cancelled ? 'hold_cancelled' : 'hold_expired';

        return new self(
            $reason,
            409,
            "Hold {$hold->id} is no longer active and cannot be confirmed.",
        );
    }

    public static function idempotencyKeyReuse(string $key, int $slotId): self
    {
        return new self(
            'idempotency_key_reuse',
            422,
            "Idempotency-Key {$key} was already used for a different slot than {$slotId}.",
        );
    }
}