<?php

namespace App\Services\Frontdesk;

use App\Models\AuditLog;
use App\Models\Organization;
use App\Models\Visit;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\DB;

class VisitScheduleService
{
    public function __construct(
        protected VisitCheckInService $checkIns,
        protected WatchlistService $watchlist,
        protected NotificationDispatcher $notifications,
    ) {}

    /**
     * Pre-register or schedule a future visit without checking in.
     *
     * @param  array<string, mixed>  $data
     */
    public function schedule(string $ownerRef, Organization $organization, array $data, ?string $actorRef = null): Visit
    {
        return DB::transaction(function () use ($ownerRef, $organization, $data, $actorRef) {
            $visitor = $this->checkIns->resolveVisitorForSchedule($ownerRef, $organization, $data);

            $this->watchlist->assertCanCheckIn($visitor);

            $scheduledAt = isset($data['scheduled_at'])
                ? Carbon::parse($data['scheduled_at'])
                : now();

            $status = $scheduledAt->startOfDay()->isAfter(now()->startOfDay())
                ? Visit::STATUS_SCHEDULED
                : Visit::STATUS_EXPECTED;

            $visit = Visit::create([
                'owner_ref' => $ownerRef,
                'organization_id' => $organization->id,
                'branch_id' => $data['branch_id'] ?? null,
                'visitor_id' => $visitor->id,
                'host_id' => $data['host_id'] ?? null,
                'visitor_type' => $data['visitor_type'] ?? 'visitor',
                'status' => $status,
                'purpose' => $data['purpose'] ?? null,
                'expected_duration_minutes' => (int) ($data['expected_duration_minutes']
                    ?? config('frontdesk.kiosk.default_visit_duration_minutes', 60)),
                'scheduled_at' => $scheduledAt,
                'notes' => $data['notes'] ?? null,
                'external_ref' => $data['external_ref'] ?? null,
                'source' => $data['source'] ?? null,
                'integration_metadata' => $data['integration_metadata'] ?? null,
            ]);

            AuditLog::record(
                $ownerRef,
                'visit.scheduled',
                $organization->id,
                $actorRef,
                Visit::class,
                $visit->id,
                ['visitor' => $visitor->full_name, 'scheduled_at' => $scheduledAt->toIso8601String()],
            );

            if ($status === Visit::STATUS_EXPECTED) {
                $this->notifications->visitorExpected($visit);
            }

            return $visit->load(['visitor', 'host']);
        });
    }
}