<?php

namespace App\Http\Controllers\Admin;

use App\Actions\Draw\RunDraw;
use App\Http\Controllers\Controller;
use App\Http\Requests\ClearDrawRequest;
use App\Http\Requests\RunDrawRequest;
use App\Models\Audition;
use App\Models\Event;
use App\Services\DrawService;
use Illuminate\Http\Request;

use function array_keys;
use function to_route;

class DrawController extends Controller
{
    protected $drawService;

    public function __construct(DrawService $drawService)
    {
        $this->drawService = $drawService;
    }

    public function index(Request $request)
    {
        $events = Event::with('auditions.flags')->get();

        // $drawnAuditionsExist is true if any audition->hasFlag('drawn') is true
        $drawnAuditionsExist = Audition::whereHas('flags', function ($query) {
            $query->where('flag_name', 'drawn');
        })->exists();

        return view('admin.draw.index', compact('events', 'drawnAuditionsExist'));
    }

    public function store(RunDrawRequest $request)
    {
        // Request will contain audition which is an array of audition IDs all with a value of 1
        // Code below results in a collection of auditions that were checked on the form
        $auditions = Audition::with('flags')->findMany(array_keys($request->input('audition', [])));

        if ($this->drawService->checkCollectionForDrawnAuditions($auditions)) {
            return to_route('admin.draw.index')->with('error',
                'Cannot run draw. Some auditions have already been drawn.');
        }

        app(RunDraw::class)($auditions);

        return to_route('admin.draw.index')->with('success', 'Draw completed successfully');
    }

    /**
     * generates the page with checkboxes for each drawn audition with an intent to clear them
     */
    public function edit(Request $request)
    {
        $drawnAuditions = Audition::whereHas('flags', function ($query) {
            $query->where('flag_name', 'drawn');
        })->get();

        return view('admin.draw.edit', compact('drawnAuditions'));
    }

    /**
     * Clears the draw for auditions
     */
    public function destroy(ClearDrawRequest $request)
    {
        // Request will contain audition which is an array of audition IDs all with a value of 1
        // Code below results in a collection of auditions that were checked on the form
        $auditions = Audition::with('flags')->findMany(array_keys($request->input('audition', [])));
        $this->drawService->clearDrawsOnCollection($auditions);

        return to_route('admin.draw.index')->with('success', 'Draws cleared successfully');

    }
}