<?php

declare(strict_types=1);

namespace app\common\service\pharmacy;

use DomainException;

final class PharmacySubmissionClaimPolicy
{
    /** @param array<string,mixed> $claim @return array<string,mixed> */
    public static function existingDecision(array $claim, string $requestedTarget, ?int $now = null): array
    {
        $target = (string) ($claim['target'] ?? '');
        $status = strtoupper(trim((string) ($claim['status'] ?? '')));
        if ($status === 'SUCCESS') {
            if ($target !== $requestedTarget) {
                throw new DomainException('该订单已上传其他药房');
            }
            return ['action' => 'IDEMPOTENT'] + $claim;
        }
        if ($status === 'PENDING') {
            $leaseExpiresAt = (int) ($claim['lease_expires_at'] ?? 0);
            if ($leaseExpiresAt > 0 && $leaseExpiresAt <= ($now ?? time())) {
                return [
                    'action' => $target === 'gancao' ? 'RECONCILE' : 'RETRY',
                    'lease_expired' => true,
                ] + $claim;
            }
            throw new DomainException('该订单正在上传药房，请勿重复提交');
        }
        if (in_array($status, ['UNKNOWN', 'PENDING_RECONCILE'], true)) {
            if ($target !== $requestedTarget) {
                throw new DomainException('该订单远端结果待对账，禁止切换药房');
            }
            return ['action' => 'RECONCILE'] + $claim;
        }
        if ($status === 'FAILED') {
            return ['action' => 'RETRY'] + $claim;
        }

        throw new DomainException('药房提交状态异常，请先对账处理');
    }
}