<?php

declare(strict_types=1);

namespace app\common\service\pharmacy;

use Closure;
use DomainException;
use InvalidArgumentException;
use RuntimeException;
use Throwable;

final class EjPharmacyCallbackWorkflow
{
    private Closure $loadInbox;
    private Closure $createInbox;
    private Closure $reloadInbox;
    private Closure $process;
    private Closure $markFailed;
    private Closure $isDuplicateKey;

    public function __construct(
        callable $loadInbox,
        callable $createInbox,
        callable $reloadInbox,
        callable $process,
        callable $markFailed,
        callable $isDuplicateKey
    ) {
        $this->loadInbox = Closure::fromCallable($loadInbox);
        $this->createInbox = Closure::fromCallable($createInbox);
        $this->reloadInbox = Closure::fromCallable($reloadInbox);
        $this->process = Closure::fromCallable($process);
        $this->markFailed = Closure::fromCallable($markFailed);
        $this->isDuplicateKey = Closure::fromCallable($isDuplicateKey);
    }

    /** @param array<string,mixed> $payload @return array<string,mixed> */
    public function handle(array $payload): array
    {
        $eventId = trim((string) ($payload['event_id'] ?? ''));
        if ($eventId === '') {
            return ['http_status' => 422, 'message' => 'event_id is required', 'duplicate' => false];
        }

        $inbox = ($this->loadInbox)($eventId);
        if (is_array($inbox) && strtoupper((string) ($inbox['process_status'] ?? '')) === 'PROCESSED') {
            return ['http_status' => 200, 'message' => 'ok', 'duplicate' => true];
        }

        if (!is_array($inbox)) {
            try {
                $inbox = ($this->createInbox)($payload);
            } catch (Throwable $exception) {
                if (!(bool) ($this->isDuplicateKey)($exception)) {
                    return ['http_status' => 500, 'message' => $exception->getMessage(), 'duplicate' => false];
                }
                $inbox = ($this->reloadInbox)($eventId);
                if (!is_array($inbox)) {
                    return ['http_status' => 500, 'message' => 'callback inbox race could not be reloaded', 'duplicate' => false];
                }
                if (strtoupper((string) ($inbox['process_status'] ?? '')) === 'PROCESSED') {
                    return ['http_status' => 200, 'message' => 'ok', 'duplicate' => true];
                }
            }
        }

        try {
            ($this->process)($inbox, $payload);
            return ['http_status' => 200, 'message' => 'ok', 'duplicate' => false];
        } catch (EjPharmacyCallbackRetryException $exception) {
            ($this->markFailed)($inbox, $exception->getMessage());
            return ['http_status' => 503, 'message' => $exception->getMessage(), 'duplicate' => false];
        } catch (InvalidArgumentException|DomainException $exception) {
            ($this->markFailed)($inbox, $exception->getMessage());
            return ['http_status' => 422, 'message' => $exception->getMessage(), 'duplicate' => false];
        } catch (Throwable $exception) {
            ($this->markFailed)($inbox, $exception->getMessage());
            return ['http_status' => 500, 'message' => $exception->getMessage(), 'duplicate' => false];
        }
    }
}