<?php

namespace App\Http\Controllers\Events;

use App\Http\Controllers\Controller;
use App\Models\QrCode;
use App\Models\QrEventRegistration;
use App\Services\Billing\BillingClient;
use App\Support\Qr\QrTypeCatalog;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Log;
use Illuminate\View\View;
use Throwable;

class OverviewController extends Controller
{
    public function __construct(private BillingClient $billing) {}

    public function index(Request $request): View
    {
        $account = ladill_account();

        $events = $account->qrCodes()
            ->where('type', QrCode::TYPE_EVENT)
            ->get();

        $eventIds = $events->pluck('id');

        $upcomingCount = $events->filter(function (QrCode $event) {
            $startsAt = $event->content()['starts_at'] ?? null;
            if (! $startsAt) {
                return true;
            }

            return strtotime((string) $startsAt) >= now()->startOfDay()->timestamp;
        })->count();

        $registrationsQuery = QrEventRegistration::query()
            ->whereIn('qr_code_id', $eventIds)
            ->where('status', QrEventRegistration::STATUS_CONFIRMED);

        $ticketsSold = (clone $registrationsQuery)->count();
        $revenueMinor = (int) (clone $registrationsQuery)->sum('amount_minor');
        $checkedIn = QrEventRegistration::query()
            ->whereIn('qr_code_id', $eventIds)
            ->whereNotNull('checked_in_at')
            ->count();

        $checkInRate = $ticketsSold > 0 ? round(($checkedIn / $ticketsSold) * 100) : 0;

        $recentEvents = $account->qrCodes()
            ->where('type', QrCode::TYPE_EVENT)
            ->latest()
            ->limit(5)
            ->get()
            ->map(function (QrCode $event) {
                $event->confirmed_count = $event->eventRegistrations()
                    ->where('status', QrEventRegistration::STATUS_CONFIRMED)
                    ->count();

                return $event;
            });

        $programmeCount = $account->qrCodes()
            ->whereIn('type', QrTypeCatalog::programmeTypes())
            ->count();

        $balanceMinor = 0;
        try {
            $balanceMinor = $this->billing->balanceMinor($account->public_id);
        } catch (Throwable $e) {
            Log::warning('Events dashboard could not load wallet balance', [
                'user' => $account->public_id,
                'error' => $e->getMessage(),
            ]);
        }

        return view('events.dashboard', [
            'upcomingCount' => $upcomingCount,
            'ticketsSold' => $ticketsSold,
            'revenueMinor' => $revenueMinor,
            'checkInRate' => $checkInRate,
            'recentEvents' => $recentEvents,
            'programmeCount' => $programmeCount,
            'balanceMinor' => $balanceMinor,
        ]);
    }
}