<?php

/**
 * @Name   minecraft_server
 * @Unique Name
 * @Unique Domain, Port
 */
class MinecraftServer extends Entity
{
    /**
     * @DB-Column
     * @Name ID
     * @Type INT
     * @Primary
     * @AutoIncrement
     * @NotNull
     */
    public $ID;
    /**
     * @DB-Column
     * @Name Name
     * @Type VARCHAR(256)
     * @NotNull
     */
    public $Name;
    /**
     * @DB-Column
     * @Name Domain
     * @Type VARCHAR(256)
     */
    public $Domain = null;
    /**
     * @DB-Column
     * @Name Port
     * @Type INT(4)
     */
    public $Port = null;
    /**
     * @DB-Column
     * @Name Password
     * @Type VARCHAR(256)
     */
    public $Password = null;
    /**
     * @DB-Column
     * @Name ServerPath
     * @Type VARCHAR(256)
     */
    public $ServerPath = null;
    /**
     * @DB-Column
     * @Name PerMonthPrice
     * @Type INT(4)
     */
    public $PerMonthPrice = null;
    /**
     * @DB-Column
     * @Name MaxPerMonthPrice
     * @Type INT(4)
     */
    public $MaxPerMonthPrice = null;
    /**
     * @DB-Relation
     * @Field     ID
     * @FieldName SubscriptionID
     * @OneToMany
     * @OnUpdate  CASCADE
     * @OnDelete  CASCADE
     * @var MinecraftServerSubscription[]
     */
    public $Subscriptions;

    public function IsUnlocked( MinecraftUser $user ): bool
    {
        return in_array( strtolower( $user->GetUsername() ), $this->GetWhitelistedNames() );
    }

    private $RCon = null;

    private function GetRCon()
    {
        if ( $this->RCon == null ) $this->RCon = new Rcon( $this->GetDomain(), $this->GetPort(), $this->GetPassword(), 1500 );
        return $this->RCon;
    }

    public function Unlock( MinecraftUser $user, bool $keepOpen = false ): bool
    {
        $rcon = $this->GetRCon();
        if ( !$rcon->isConnected() ) $rcon->connect();
        $rcon->sendCommand( 'whitelist add ' . $user->GetUsername() );
        $res = $rcon->getResponse();
        if ( !$keepOpen ) $rcon->disconnect();
        return $this->IsUnlocked( $user );
    }

    public function Lock( MinecraftUser $user, bool $keepOpen = false ): bool
    {
        $rcon = $this->GetRCon();
        if ( !$rcon->isConnected() ) $rcon->connect();
        $rcon->sendCommand( 'whitelist remove ' . $user->GetUsername() );
        $res = $rcon->getResponse();
        if ( !$keepOpen ) $rcon->disconnect();
        return !$this->IsUnlocked( $user );
    }

    public function GetWhitelistedNames( bool $keepOpen = false )
    {
        // There are 1 whitelisted players: DragonSkills99
        $rcon = $this->GetRCon();
        if ( !$rcon->isConnected() ) $rcon->connect();
        $rcon->sendCommand( 'whitelist list' );
        $res = $rcon->getResponse();
        if ( !$keepOpen ) $rcon->disconnect();
        if ( nocase_compare( 'There are no whitelisted players', trim( $res ) ) ) return [];
        preg_match( '/^There are [0-9]+ whitelisted players: (.*)/', trim( $res ), $m );
        if ( !isset( $m[ 1 ] ) ) return [];
        $players = explode( ', ', strtolower( $m[ 1 ] ) );
        if ( trim( $players[ 0 ] ) == '' ) return [];
        else return $players;
    }

    public function ClearWhitelist( int $tries = 3 )
    {
        $rcon = $this->GetRCon();
        $players = $this->GetWhitelistedNames( true );
        if ( !count( $players ) ) {
            $rcon->disconnect();
            return true;
        }

        foreach ( $players as $player ) {
            $rcon->sendCommand( "whitelist remove $player" );
        }

        $nplayers = $this->GetWhitelistedNames( true );
        if ( count( $nplayers ) ) {
            if ( $tries > 0 ) $this->ClearWhitelist( $tries - 1 );
            else {
                $rcon->disconnect();
                return false;
            }
        }
        $rcon->disconnect();
        return true;
    }
}