<?php

namespace App\Services\Meet;

use App\Models\QrCode;
use Illuminate\Support\Facades\Log;

class MeetLifecycleService
{
    /** @param  array<string, mixed>  $payload */
    public function handle(string $event, array $payload): void
    {
        $room = (array) ($payload['room'] ?? []);
        $source = (array) ($room['source'] ?? []);

        if (($source['app'] ?? '') !== 'events') {
            return;
        }

        $eventId = (int) ($source['event_id'] ?? 0);
        $sessionId = (string) ($source['entity_id'] ?? '');

        if ($eventId <= 0 || $sessionId === '') {
            return;
        }

        $qrCode = QrCode::find($eventId);
        if (! $qrCode || $qrCode->type !== QrCode::TYPE_EVENT) {
            return;
        }

        $content = $qrCode->content();
        $sessions = (array) ($content['virtual_sessions'] ?? []);
        $updated = false;

        foreach ($sessions as $index => $session) {
            if (! is_array($session) || ($session['id'] ?? '') !== $sessionId) {
                continue;
            }

            $sessions[$index] = array_merge($session, $this->patchForEvent($event, $payload, $room));
            $updated = true;
            break;
        }

        if (! $updated) {
            return;
        }

        $payloadData = (array) ($qrCode->payload ?? []);
        $payloadData['content'] = array_merge($content, ['virtual_sessions' => array_values($sessions)]);
        $qrCode->update(['payload' => $payloadData]);

        Log::info('Events Meet lifecycle applied', ['event' => $event, 'event_id' => $eventId, 'session_id' => $sessionId]);
    }

    /** @return array<string, mixed> */
    private function patchForEvent(string $event, array $payload, array $room): array
    {
        return match ($event) {
            'meeting.started' => ['meet_status' => 'live', 'meet_live_at' => now()->toIso8601String()],
            'meeting.ended' => ['meet_status' => 'ended', 'meet_ended_at' => now()->toIso8601String()],
            'meeting.cancelled' => ['meet_status' => 'cancelled'],
            'recording.ready' => [
                'recording_url' => (string) (($payload['recording']['download_url'] ?? '') ?: ''),
                'recording_ready_at' => now()->toIso8601String(),
            ],
            default => [],
        };
    }
}