<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class GamesController extends Controller
{
    public function index(Request $request) {
        return view('games.index');
    }

    public function instantWin(Request $request) {
        return view('games.instant-win');
    }

    public function instantWinGenerate(Request $request) {
        $start_date = $request->start_date;
        $end_date = $request->end_date;
        $lots = $request->lots;
        $lots = json_decode($lots, true);

        $begin = new \DateTime( $start_date );
        $end = new \DateTime( $end_date );
        $end = $end->modify( '+1 day' );
        $interval = new \DateInterval('P1D');
        $daterange = new \DatePeriod($begin, $interval ,$end);
        $dateGlobal = [];
        $lotsGlobal = [];

        foreach ($lots as $k => $lot)
            for ($i = 0; $i < $lot['qty']; $i++)
                $lotsGlobal[] = ['id' => $lot['id'], 'name' => $lot['name'], 'hour' => str_pad(mt_rand(6, 22), 2, "0", STR_PAD_LEFT) . ":" . str_pad(mt_rand(0, 59), 2, "0", STR_PAD_LEFT) . ":00"];
        shuffle($lotsGlobal);
        foreach($daterange as $date)
            array_push($dateGlobal, ['date' => $date->format("Y-m-d"), 'lots' => []]);


        $res = $this->generate($lotsGlobal,$dateGlobal, 0);

        return redirect()->route('games.instantwin')->with('generated', $res);
    }

    private function generate($lotsGlobal, $dateGlobal, $lotsDone){
        $rKey = array_rand($dateGlobal, 1);
        if ($lotsDone < count($dateGlobal)) {
            if (count($dateGlobal[$rKey]['lots']) > 0) {
                return $this->generate($lotsGlobal, $dateGlobal, $lotsDone);
            }
        }
        array_push($dateGlobal[$rKey]['lots'], $lotsGlobal[$lotsDone++]);
        if ($lotsDone < count($lotsGlobal)) {
            return $this->generate($lotsGlobal, $dateGlobal, $lotsDone);
        }
        foreach ($dateGlobal as $k => $date)
            usort($dateGlobal[$k]['lots'], [$this, 'sortFunction']);
        return $dateGlobal;
    }

    private function sortFunction( $a, $b ) {
        return strtotime($a["hour"]) - strtotime($b["hour"]);
    }

}