<?php

namespace App\Http\Controllers;

use App\Http\Requests\DoublerRequestsStoreRequest;
use App\Models\DoublerRequest;
use App\Models\Event;
use Illuminate\Contracts\Foundation\Application;
use Illuminate\Contracts\View\Factory;
use Illuminate\Contracts\View\View;

use function auth;
use function compact;
use function to_route;

class DoublerRequestController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * Data sent to view:
     * - events - all existing events
     * - existingRequests - previously made requests for each event, keyed by student id
     *      existingRequest[eventId][student id]-> Request
     * - doublers - existing doublers, grouped by event. Keyed by event_id and student_id
     *
     * @return Application|Factory|View|\Illuminate\Foundation\Application|\Illuminate\View\View
     */
    public function index()
    {
        $events = Event::all();
        $existingRequests = auth()->user()->school->doublerRequests
            ->groupBy('event_id')
            ->map(function ($requestsForEvent) {
                return $requestsForEvent->keyBy('student_id');
            });
        $doublers = auth()->user()->school->doublers()
            ->with('student')
            ->with('event')
            ->get()
            ->groupBy('event_id');

        return view('doubler_request.index', compact('events', 'doublers', 'existingRequests'));
    }

    public function makeRequest(DoublerRequestsStoreRequest $request)
    {
        foreach ($request->getDoublerRequests() as $thisRequest) {

            DoublerRequest::upsert([
                'event_id' => $thisRequest['event_id'],
                'student_id' => $thisRequest['student_id'],
                'request' => $thisRequest['request'],
            ],
                uniqueBy: ['event_id', 'student_id'],
                update: ['request']
            );
        }

        return to_route('doubler_request.index')->with('success', 'Recorded doubler requests');

    }
}