<?php

namespace App\Services\Hosting;

use App\Jobs\ProvisionHostingOrderJob;
use App\Models\CustomerHostingOrder;
use Illuminate\Support\Facades\Log;

class HostingOrderFulfillmentService
{
    /**
     * Approve and queue provisioning. Upstream failures (e.g. Contabo low balance)
     * are handled when {@see ProvisionHostingOrderJob} runs.
     *
     * @return array{fulfilled: bool, reasons: array<int, string>}
     */
    public function attemptAutoFulfillment(CustomerHostingOrder $order): array
    {
        $order->refresh()->loadMissing('product');

        if (! $this->isEligibleForAutoFulfillment($order)) {
            return ['fulfilled' => false, 'reasons' => ['Order is not eligible for automatic fulfillment.']];
        }

        $this->approveAndQueue($order);

        return ['fulfilled' => true, 'reasons' => []];
    }

    public function approveAndQueue(CustomerHostingOrder $order): void
    {
        if ($order->status === CustomerHostingOrder::STATUS_APPROVED) {
            ProvisionHostingOrderJob::dispatch($order->fresh());

            return;
        }

        $meta = $order->meta ?? [];
        unset($meta['upstream_funds_hold'], $meta['upstream_funds_hold_at'], $meta['provisioning_hold']);

        $order->update([
            'status' => CustomerHostingOrder::STATUS_APPROVED,
            'approved_at' => now(),
            'approved_by' => null,
            'meta' => $meta,
        ]);

        ProvisionHostingOrderJob::dispatch($order->fresh());

        Log::info('Hosting order queued for provisioning', [
            'order_id' => $order->id,
            'domain_name' => $order->domain_name,
        ]);
    }

    private function isEligibleForAutoFulfillment(CustomerHostingOrder $order): bool
    {
        return in_array($order->status, [
            CustomerHostingOrder::STATUS_PENDING_APPROVAL,
            CustomerHostingOrder::STATUS_PENDING_PAYMENT,
        ], true) || (
            $order->status === CustomerHostingOrder::STATUS_APPROVED
            && $order->provisioned_at === null
            && $order->hosting_account_id === null
            && $order->vps_instance_id === null
        );
    }
}