<?php

namespace App\Jobs;

use App\Models\AnalyticsSession;
use App\Models\Event;
use App\Models\PageView;
use App\Models\Visitor;
use App\Models\Website;
use App\Services\GoalEvaluationService;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Queue\SerializesModels;
use Illuminate\Support\Carbon;
use Stevebauman\Location\Facades\Location;

class ProcessTrackingPayload implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

    public int $tries = 3;

    public function __construct(
        private readonly array $payload,
        private readonly string $ip,
        private readonly Carbon $receivedAt,
    ) {}

    public function handle(GoalEvaluationService $goalService): void
    {
        $website = Website::where('tracking_id', $this->payload['tid'])
            ->where('is_active', true)
            ->first();

        if (! $website) {
            return;
        }

        $now = $this->receivedAt;

        $visitor = Visitor::updateOrCreate(
            [
                'website_id' => $website->id,
                'uid' => $this->payload['vid'],
            ],
            [
                'last_seen_at' => $now,
                'first_seen_at' => $now,
                'device_type' => $this->payload['device'] ?? null,
                'browser' => $this->payload['browser'] ?? null,
                'browser_version' => $this->payload['browser_version'] ?? null,
                'os' => $this->payload['os'] ?? null,
                'os_version' => $this->payload['os_version'] ?? null,
                'screen_resolution' => $this->payload['sr'] ?? null,
                'language' => $this->payload['lang'] ?? null,
            ],
        );

        if ($visitor->wasRecentlyCreated) {
            $visitor->update(['first_seen_at' => $now]);
            $this->geolocate($visitor);
        }

        $session = AnalyticsSession::firstOrCreate(
            ['uid' => $this->payload['sid']],
            [
                'website_id' => $website->id,
                'visitor_id' => $visitor->id,
                'started_at' => $now,
                'entry_page' => $this->payload['path'] ?? $this->payload['url'] ?? null,
                'ip_address' => $this->ip,
                'referrer_url' => $this->payload['referrer'] ?? null,
                'referrer_domain' => $this->payload['ref_domain'] ?? null,
                'utm_source' => $this->payload['utm_source'] ?? null,
                'utm_medium' => $this->payload['utm_medium'] ?? null,
                'utm_campaign' => $this->payload['utm_campaign'] ?? null,
                'utm_term' => $this->payload['utm_term'] ?? null,
                'utm_content' => $this->payload['utm_content'] ?? null,
            ],
        );

        if ($this->payload['type'] === 'pageview') {
            PageView::create([
                'website_id' => $website->id,
                'visitor_id' => $visitor->id,
                'analytics_session_id' => $session->id,
                'url' => $this->payload['url'] ?? '',
                'path' => $this->payload['path'] ?? '/',
                'title' => $this->payload['title'] ?? null,
                'referrer' => $this->payload['referrer'] ?? null,
                'time_on_page' => $this->payload['time_on_page'] ?? null,
                'viewed_at' => $now,
            ]);
        }

        if ($this->payload['type'] === 'event') {
            Event::create([
                'website_id' => $website->id,
                'visitor_id' => $visitor->id,
                'analytics_session_id' => $session->id,
                'name' => $this->payload['event_name'] ?? 'unknown',
                'category' => $this->payload['event_category'] ?? null,
                'action' => $this->payload['event_action'] ?? null,
                'label' => $this->payload['event_label'] ?? null,
                'value' => $this->payload['event_value'] ?? null,
                'properties' => $this->payload['event_properties'] ?? null,
                'occurred_at' => $now,
            ]);
        }

        // Calculate duration, ensuring it's never negative (handle out-of-order events)
        // Use max() to ensure we use the latest timestamp for ended_at
        $endedAt = $session->ended_at ? max($now, $session->ended_at) : $now;
        $duration = max(0, (int) $endedAt->diffInSeconds($session->started_at, false));

        $session->update([
            'ended_at' => $endedAt,
            'duration' => $duration,
            'exit_page' => $this->payload['path'] ?? $this->payload['url'] ?? $session->exit_page,
            'pages_count' => $session->pageViews()->count(),
            'is_bounce' => $session->pageViews()->count() <= 1,
        ]);

        $session->refresh();

        $goalService->evaluate($website, $visitor, $session, $this->payload, $now);
    }

    private function geolocate(Visitor $visitor): void
    {
        try {
            $position = Location::get($this->ip);

            if ($position) {
                $visitor->update(array_filter([
                    'country' => $position->countryCode ?? null,
                    'region' => $position->regionName ?? null,
                    'city' => $position->cityName ?? null,
                ]));
            }
        } catch (\Throwable) {
            // Geolocation is best-effort; never fail the job over it
        }
    }
}