<?php

namespace App\Modules\Subscriptions\Application;

use App\Models\User;
use App\Modules\Identity\Domain\Enums\AccountStatus;
use App\Modules\Identity\Domain\UserInvitation;
use App\Modules\Subscriptions\Domain\Subscription;
use Illuminate\Validation\ValidationException;

final class SeatQuota
{
    public function assertAvailable(string $organizationId, string $errorField = 'email'): void
    {
        $subscription = Subscription::query()
            ->where('organization_id', $organizationId)
            ->where('status', 'active')
            ->where('starts_at', '<=', now())
            ->where(fn ($query) => $query->whereNull('expires_at')->orWhere('expires_at', '>', now()))
            ->latest('starts_at')
            ->first();

        if (! $subscription || $subscription->seat_limit === null) {
            return;
        }

        $users = User::query()
            ->where('organization_id', $organizationId)
            ->whereIn('status', [AccountStatus::Active, AccountStatus::Invited])
            ->count();
        $pendingInvitations = UserInvitation::query()
            ->where('organization_id', $organizationId)
            ->whereNull('accepted_at')
            ->whereNull('revoked_at')
            ->where('expires_at', '>', now())
            ->count();

        if ($users + $pendingInvitations >= $subscription->seat_limit) {
            throw ValidationException::withMessages([
                $errorField => ['The organization has reached its seat limit.'],
            ]);
        }
    }
}