<?php
/**
 * Created by PhpStorm.
 * User: jeroen
 * Date: 1/02/19
 * Time: 11:18
 */

namespace JeroenED\Libpairtwo;

use JeroenED\Libpairtwo\Enums\Result;
use JeroenED\Libpairtwo\Models\Tournament as TournamentModel;
use JeroenED\Libpairtwo\Player;
use JeroenED\Libpairtwo\Enums\Color;
use JeroenED\Libpairtwo\Enums\Gameresult;

class Tournament extends TournamentModel
{
    /**
     * @param integer $id
     * @return Player
     */
    public function getPlayerById(int $id)
    {
        return $this->GetPlayers()[$id];
    }

    /**
     * @param Player $Player
     */
    public function addPlayer(Player $Player)
    {
        $newArray = $this->GetPlayers();
        $newArray[] = $Player;
        $this->setPlayers($newArray);
    }

    /**
     * @param int $id
     * @param Player $player
     */
    public function updatePlayer(int $id, Player $player)
    {
        $newArray = $this->GetPlayers();
        $newArray[$id] = $player;
        $this->setPlayers($newArray);
    }

    /**
     * @param Round $round
     */
    public function addRound(Round $round)
    {
        $newArray = $this->getRounds();
        $newArray[$round->getRoundNo()] = $round;
        $this->setRounds($newArray);
    }

    /**
     * @param int $roundNo
     * @return Round
     */
    public function getRoundByNo(int $roundNo): Round
    {
        return $this->getRounds()[$roundNo];
    }

    /**
     * @param Pairing $pairing
     */
    public function addPairing(Pairing $pairing)
    {
        $newArray = $this->GetPairings();
        $newArray[] = $pairing;
        $this->setPairings($newArray);
    }

    /**
     * This function converts the array of pairings into rounds
     */
    public function pairingsToRounds(): void
    {
        $pairings = $this->getPairings();
        foreach ($pairings as $pairing) {
            $round = $pairing->getRound();
            $player = $pairing->getPlayer();
            $opponent = $pairing->getOpponent();
            $color = $pairing->getColor();
            $result = $pairing->getResult();

            $game = new Game();
            if ($color->getValue() == Color::white) {
                if(! is_null($player)) $game->setWhite($player);
                if(! is_null($opponent)) $game->setBlack($opponent);
                switch ($result->getValue()) {
                    case Result::won:
                    case Result::wonbye:
                        $game->setResult(new Gameresult("1-0")); break;
                    case Result::wonforfait:
                        $game->setResult(new Gameresult("1-0FF")); break;
                    case Result::wonadjourned:
                        $game->setResult(new Gameresult("1-0A")); break;
                    case Result::lost:
                    case Result::bye:
                        $game->setResult(new Gameresult("0-1")); break;
                    case Result::absent:
                        $game->setResult(new Gameresult("0-1FF")); break;
                    case Result::adjourned:
                        $game->setResult(new Gameresult("0-1A")); break;
                    case Result::draw:
                        $game->setResult(new Gameresult("0.5-0.5")); break;
                    case Result::drawadjourned:
                        $game->setResult(new Gameresult("0.5-0.5A")); break;
                    case Result::none:
                    default:
                        $game->setResult(new Gameresult('-')); break;
                }
            } elseif ($color->getValue() == Color::black) {
                if(! is_null($player)) $game->setBlack($player);
                if(! is_null($opponent)) $game->setWhite($opponent);
                switch ($result->getValue()) {
                    case Result::won:
                    case Result::wonbye:
                        $game->setResult(new Gameresult("0-1")); break;
                    case Result::wonforfait:
                        $game->setResult(new Gameresult("0-1FF")); break;
                    case Result::wonadjourned:
                        $game->setResult(new Gameresult("0-1A")); break;
                    case Result::lost:
                    case Result::bye:
                        $game->setResult(new Gameresult("1-0")); break;
                    case Result::absent:
                        $game->setResult(new Gameresult("1-0FF")); break;
                    case Result::adjourned:
                        $game->setResult(new Gameresult("1-0A")); break;
                    case Result::draw:
                        $game->setResult(new Gameresult("0.5-0.5")); break;
                    case Result::drawadjourned:
                        $game->setResult(new Gameresult("0.5-0.5A")); break;
                    case Result::none:
                    default:
                        $game->setResult(new Gameresult('-')); break;
                }
            }

            // Check if game already exists
            if (!$this->GameExists($game, $round)) {
                $this->AddGame($game, $round);
            }
        }
    }

    /**
     * Checks if a game already is already registered
     *
     * @param Game $game
     * @param int $round
     * @return bool
     */
    public function GameExists(Game $game, int $round = -1): bool
    {
        $search = [ $round ];
        if ($round == -1) {
            $search = [];
            for ($i = 0; $i < $this->getNoOfRounds(); $i++) {
                $search[] = $i;
            }
        }

        foreach ($search as $round) {
            if (!isset($this->getRounds()[$round])) {
                return false;
            }
            $games = $this->getRounds()[$round]->getGames();
            if(is_null($games)) return false;
            foreach ($games as $roundgame) {
                if ($roundgame->getWhite() == $game->getWhite() &&
                    $roundgame->getBlack() == $game->getBlack() &&
                    $roundgame->getResult() == $game->getResult()
                ) {
                    return true;
                }
            }
        }

        return false;
    }

    /**
     * @param Game $game
     * @param int $round
     */
    public function addGame(Game $game, int $round)
    {
        if (!isset($this->getRounds()[$round])) {
            $roundObj = new Round();
            $roundObj->setRoundNo($round);
            $this->addRound($roundObj);
        }

        $this->getRoundByNo($round)->addGame($game);
    }

    /**
     * @param bool $americansort
     * @return Player[]
     */
    public function getRanking(bool $americansort = false)
    {
        $players = $this->getPlayers();

        $americansort ? usort($players, array($this, "SortAmerican")) : usort($players, array($this, "SortNormal"));

        return $players;
    }

    /**
     * @param Player $a
     * @param Player $b
     * @return int
     */
    private function sortNormal(Player $a, Player $b)
    {
        return $b->getPoints() - $a->getPoints();
    }

    /**
     * @param Player $a
     * @param Player $b
     * @return int
     */
    private function sortAmerican(Player $a, Player $b)
    {
        return $b->getScoreAmerican() - $a->getScoreAmerican();
    }
}