<?php

namespace App\Http\Controllers;

use App\Enums\EventStatus;
use App\Enums\EventType;
use App\Models\ActivityLog;
use App\Models\Event;
use App\Models\Setting;
use App\Models\Team;
use Illuminate\Http\Request;
use Illuminate\View\View;

class EventController extends Controller
{
    public function index(Request $request): View
    {
        $user = auth()->user();

        $query = Event::with(['team', 'participants'])
            ->withCount([
                'caterings as caterings_yes_count' => fn ($q) => $q->where('status', 'yes'),
                'timekeepers as timekeepers_yes_count' => fn ($q) => $q->where('status', 'yes'),
            ]);

        // Admins sehen auch Entwürfe, Eltern nur published
        if ($user->canAccessAdminPanel()) {
            $teams = Team::where('is_active', true)->orderBy('name')->get();
        } else {
            $teamIds = $user->accessibleTeamIds();
            $query->published()->whereIn('team_id', $teamIds);
            $teams = Team::whereIn('id', $teamIds)->orderBy('name')->get();
        }

        // Filter: Team (nur Integer-IDs akzeptieren)
        if ($request->filled('team_id')) {
            $query->where('team_id', (int) $request->team_id);
        }

        // Filter: Typ (nur gueltige EventType-Werte)
        if ($request->filled('type')) {
            $validTypes = array_column(EventType::cases(), 'value');
            if (in_array($request->type, $validTypes)) {
                $query->where('type', $request->type);
            }
        }

        // Filter: Zeitraum
        if ($request->input('period') === 'past') {
            $query->where('start_at', '<', now())->orderByDesc('start_at');
        } else {
            $query->where('start_at', '>=', now())->orderBy('start_at');
        }

        $events = $query->paginate(15)->withQueryString();

        return view('events.index', compact('events', 'teams'));
    }

    public function show(Event $event): View
    {
        $user = auth()->user();

        // Entwürfe nur für Admins
        if ($event->status === EventStatus::Draft && !$user->canAccessAdminPanel()) {
            abort(403);
        }

        // Kinder einmal laden, für Zugriffsprüfung + Teilnahme-Buttons
        $userChildren = $user->children()->select('players.id', 'players.team_id', 'players.first_name', 'players.last_name')->get();

        // Zugriffsbeschraenkung: User muss Zugang zum Team haben (ueber accessibleTeamIds)
        if (!$user->canAccessAdminPanel()) {
            $accessibleTeamIds = $user->accessibleTeamIds();
            if (!$accessibleTeamIds->contains($event->team_id)) {
                abort(403);
            }
        }

        $event->syncParticipants($user->id);

        $isMeeting = $event->type === EventType::Meeting;

        $relations = ['team', 'comments.user', 'files.category'];
        $relations[] = $isMeeting ? 'participants.user' : 'participants.player';
        $relations[] = 'participants.setByUser';
        if ($event->type->hasCatering()) {
            $relations[] = 'caterings.user';
        }
        if ($event->type->hasTimekeepers()) {
            $relations[] = 'timekeepers.user';
        }
        if ($event->type->hasCarpool()) {
            $relations[] = 'carpools.driver';
            $relations[] = 'carpools.passengers.player';
        }
        $event->load($relations);

        $userChildIds = $userChildren->pluck('id');

        // Eigener Catering-Status
        $myCatering = $event->type->hasCatering()
            ? $event->caterings->where('user_id', $user->id)->first()
            : null;

        // Eigener Zeitnehmer-Status
        $myTimekeeper = $event->type->hasTimekeepers()
            ? $event->timekeepers->where('user_id', $user->id)->first()
            : null;

        // Eigene Fahrgemeinschaft
        $myCarpool = $event->type->hasCarpool()
            ? $event->carpools->where('user_id', $user->id)->first()
            : null;

        // Catering/Zeitnehmer-Verlauf für Staff (chronologische Statusänderungen)
        $cateringHistory = collect();
        $timekeeperHistory = collect();

        if ($user->canAccessAdminPanel() && Setting::isFeatureVisibleFor('catering_history', $user)) {
            $statusLogs = ActivityLog::where('model_type', 'Event')
                ->where('model_id', $event->id)
                ->where('action', 'status_changed')
                ->orderBy('created_at')
                ->get();

            $cateringHistory = $statusLogs->filter(
                fn ($log) => ($log->properties['new']['source'] ?? null) === 'catering'
            );
            $timekeeperHistory = $statusLogs->filter(
                fn ($log) => ($log->properties['new']['source'] ?? null) === 'timekeeper'
            );
        }

        return view('events.show', compact('event', 'userChildIds', 'userChildren', 'myCatering', 'myTimekeeper', 'myCarpool', 'cateringHistory', 'timekeeperHistory'));
    }
}