<?php 
setlocale(LC_ALL, "de_DE@euro", "de_DE", "de", "ge");
set_include_path(get_include_path() . PATH_SEPARATOR . "./lib/");

// start a session
session_start();

// Configs
require_once("config/participo.php");
require_once $config['basePath'] . "/config/cwsvJudo.config.php";

// Libs
require_once("participoLib/user.php");

participo::init($cwsvJudoConfig);

$pmelo = new PmElo();

class PmElo{
    function __construct()
    {
        // starting/continuing a session
        session_start();

        // create 'pmelo' section in the sessions data
        if(!array_key_exists('pmelo', $_SESSION)){
            $_SESSION['pmelo'] = [];
        }        
        // - data storage for id-s of chosen fighters
        if(!array_key_exists('fighterIds', $_SESSION)){
            $_SESSION['pmelo']['fighterIds'] = null; 
        }

        // check for action in post data
        if(array_key_exists('pmelo', $_POST)){
            if(array_key_exists('fighterIds', $_POST['pmelo'])){
                $this->fighters = array_map('User::loadFromDb', $_POST['pmelo']['fighterIds']);
            }
        }

        if(!is_file("pmeloRanking.json")){
            $this->log['info'][] = "Couldn't find `pmeloRanking.json`. Create a new one!";
            file_put_contents("pmeloRanking.json", json_encode([]));
        }

        // init members
        $this->trainees = self::getTrainees();
        $this->rankings = self::createRankings();

    }

    public static function getTrainees(){
        $traineeList = array_map('User::fromDbArray', User::dbSelectWithAttribute(4));
        $traineeAssocArray = [];
        foreach($traineeList as $trainee){
            $traineeAssocArray[$trainee->getId()] = $trainee;
        }
        return $traineeAssocArray;
    }
    public static function loadRankings(){
        return json_decode(file_get_contents("pmeloRanking.json"));
    }
    public static function saveRankings(array $rankings){
        file_put_contents("pmeloRankings.json", json_encode($rankings));
    }

    public function createRankings(){
        // load the last state of the ranking
        $loadedRanking = self::loadRankings();

        // check if the ranked trainees still are in training
        $cleanRanking = [];
        $toBeInsertedTrainees = [];
        foreach($loadedRanking as $rank=>$id){
            if(array_key_exists($id, $this->trainees)){
                $cleanRanking[] = $id;
                continue;
            }
            // id of the not in the ranking, we have to insert
            $toBeInsertedTrainees[$id] = $this->trainees[$id];
        }
        
        usort($toBeInsertedTrainees, function($lhs, $rhs){return $lhs < $rhs ? -1 : 1;});
        var_dump($toBeInsertedTrainees);

        // insert new trainees in the ranking
        // foreach($this->trainees as $trainee){
        //     if(empty($this->rankings)){

        //     }
        // }
    }

    public $log = ['error'=>[], 'warning'=>[], 'info'=>[]];
    public $fighters = null;
    public $trainees = null;
    // list of id-s in the order of the current ranking
    public $rankings = null;
}