<?php

/**
 * @file
 * TeamSpeak 3 PHP Framework
 * $Id: Reply.php 06/06/2016 22:27:13 scp@Svens-iMac $
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 * @package   TeamSpeak3
 * @version   1.1.24
 * @author    Sven 'ScP' Paulsen
 * @copyright Copyright (c) 2010 by Planet TeamSpeak. All rights reserved.
 */

/**
 * @class TeamSpeak3_Adapter_ServerQuery_Reply
 * @brief Provides methods to analyze and format a ServerQuery reply.
 */
class TeamSpeak3_Adapter_ServerQuery_Reply
{
    /**
     * Stores the command used to get this reply.
     *
     * @var TeamSpeak3_Helper_String
     */
    protected $cmd = null;

    /**
     * Stores the servers reply (if available).
     *
     * @var TeamSpeak3_Helper_String
     */
    protected $rpl = null;

    /**
     * Stores connected TeamSpeak3_Node_Host object.
     *
     * @var TeamSpeak3_Node_Host
     */
    protected $con = null;

    /**
     * Stores an assoc array containing the error info for this reply.
     *
     * @var array
     */
    protected $err = [];

    /**
     * Sotres an array of events that occured before or during this reply.
     *
     * @var array
     */
    protected $evt = [];

    /**
     * Indicates whether exceptions should be thrown or not.
     *
     * @var bool
     */
    protected $exp = true;

    /**
     * Creates a new TeamSpeak3_Adapter_ServerQuery_Reply object.
     *
     * @param  array                $rpl
     * @param  string               $cmd
     * @param  bool                 $exp
     * @param  TeamSpeak3_Node_Host $con
     * @return TeamSpeak3_Adapter_ServerQuery_Reply
     */
    public function __construct(array $rpl, $cmd = null, TeamSpeak3_Node_Host $con = null, $exp = true)
    {
        $this->cmd = new TeamSpeak3_Helper_String($cmd);
        $this->con = $con;
        $this->exp = (bool) $exp;

        $this->fetchError(array_pop($rpl));
        $this->fetchReply($rpl);
    }

    /**
     * Returns the reply as an TeamSpeak3_Helper_String object.
     *
     * @return TeamSpeak3_Helper_String
     */
    public function toString()
    {
        return (!func_num_args()) ? $this->rpl->unescape() : $this->rpl;
    }

    /**
     * Returns the reply as a standard PHP array where each element represents one item.
     *
     * @return array
     */
    public function toLines()
    {
        if (!count($this->rpl)) {
            return [];
        }

        $list = $this->toString(0)->split(TeamSpeak3::SEPARATOR_LIST);

        if (!func_num_args()) {
            for ($i = 0; $i < count($list); $i++) {
                $list[$i]->unescape();
            }
        }

        return $list;
    }

    /**
     * Returns the reply as a standard PHP array where each element represents one item in table format.
     *
     * @return array
     */
    public function toTable()
    {
        $table = [];

        foreach ($this->toLines(0) as $cells) {
            $pairs = $cells->split(TeamSpeak3::SEPARATOR_CELL);

            if (!func_num_args()) {
                for ($i = 0; $i < count($pairs); $i++) {
                    $pairs[$i]->unescape();
                }
            }

            $table[] = $pairs;
        }

        return $table;
    }

    /**
     * Returns a multi-dimensional array containing the reply splitted in multiple rows and columns.
     *
     * @return array
     */
    public function toArray()
    {
        $array = [];
        $table = $this->toTable(1);

        for ($i = 0; $i < count($table); $i++) {
            foreach ($table[$i] as $pair) {
                if (!count($pair)) {
                    continue;
                }

                if (!$pair->contains(TeamSpeak3::SEPARATOR_PAIR)) {
                    $array[$i][$pair->toString()] = null;
                } else {
                    [$ident, $value] = $pair->split(TeamSpeak3::SEPARATOR_PAIR, 2);

                    $array[$i][$ident->toString()] = $value->isInt() ? $value->toInt() : (!func_num_args() ? $value->unescape() : $value);
                }
            }
        }

        return $array;
    }

    /**
     * Returns a multi-dimensional assoc array containing the reply splitted in multiple rows and columns.
     * The identifier specified by key will be used while indexing the array.
     *
     * @param       $key
     * @param mixed $ident
     * @return array
     */
    public function toAssocArray($ident)
    {
        $nodes = (func_num_args() > 1) ? $this->toArray(1) : $this->toArray();
        $array = [];

        foreach ($nodes as $node) {
            if (isset($node[$ident])) {
                $array[(is_object($node[$ident])) ? $node[$ident]->toString() : $node[$ident]] = $node;
            } else {
                throw new TeamSpeak3_Adapter_ServerQuery_Exception('invalid parameter', 0x602);
            }
        }

        return $array;
    }

    /**
     * Returns an array containing the reply splitted in multiple rows and columns.
     *
     * @return array
     */
    public function toList()
    {
        $array = func_num_args() ? $this->toArray(1) : $this->toArray();

        if (count($array) == 1) {
            return array_shift($array);
        }

        return $array;
    }

    /**
     * Returns an array containing stdClass objects.
     *
     * @return ArrayObject
     */
    public function toObjectArray()
    {
        $array = (func_num_args() > 1) ? $this->toArray(1) : $this->toArray();

        for ($i = 0; $i < count($array); $i++) {
            $array[$i] = (object) $array[$i];
        }

        return $array;
    }

    /**
     * Returns the command used to get this reply.
     *
     * @return TeamSpeak3_Helper_String
     */
    public function getCommandString()
    {
        return new TeamSpeak3_Helper_String($this->cmd);
    }

    /**
     * Returns an array of events that occured before or during this reply.
     *
     * @return array
     */
    public function getNotifyEvents()
    {
        return $this->evt;
    }

    /**
     * Returns the value for a specified error property.
     *
     * @param  string $ident
     * @param  mixed  $default
     * @return mixed
     */
    public function getErrorProperty($ident, $default = null)
    {
        return (array_key_exists($ident, $this->err)) ? $this->err[$ident] : $default;
    }

    /**
     * Parses a ServerQuery error and throws a TeamSpeak3_Adapter_ServerQuery_Exception object if
     * there's an error.
     *
     * @param  string $err
     * @throws TeamSpeak3_Adapter_ServerQuery_Exception
     * @return void
     */
    protected function fetchError($err)
    {
        $cells = $err->section(TeamSpeak3::SEPARATOR_CELL, 1, 3);

        foreach ($cells->split(TeamSpeak3::SEPARATOR_CELL) as $pair) {
            [$ident, $value] = $pair->split(TeamSpeak3::SEPARATOR_PAIR);

            $this->err[$ident->toString()] = $value->isInt() ? $value->toInt() : $value->unescape();
        }

        TeamSpeak3_Helper_Signal::getInstance()->emit('notifyError', $this);

        if ($this->getErrorProperty('id', 0x00) != 0x00 && $this->exp) {
            if ($permid = $this->getErrorProperty('failed_permid')) {
                $suffix = $permsid = key($this->con->request('permget permid=' . $permid, false)->toAssocArray('permsid')) ? ' (failed on ' . $permsid . ')' : ' (failed on ' . $this->cmd->section(TeamSpeak3::SEPARATOR_CELL) . ' ' . $permid . '/0x' . strtoupper(dechex($permid)) . ')';
            } elseif ($details = $this->getErrorProperty('extra_msg')) {
                $suffix = ' (' . trim($details) . ')';
            } else {
                $suffix = '';
            }

            throw new TeamSpeak3_Adapter_ServerQuery_Exception($this->getErrorProperty('msg') . $suffix, $this->getErrorProperty('id'));
        }
    }

    /**
     * Parses a ServerQuery reply and creates a TeamSpeak3_Helper_String object.
     *
     * @param  string $rpl
     * @return void
     */
    protected function fetchReply($rpl)
    {
        foreach ($rpl as $key => $val) {
            if ($val->startsWith(TeamSpeak3::GREET)) {
                unset($rpl[$key]);
            } elseif ($val->startsWith(TeamSpeak3::EVENT)) {
                $this->evt[] = new TeamSpeak3_Adapter_ServerQuery_Event($rpl[$key], $this->con);
                unset($rpl[$key]);
            }
        }

        $this->rpl = new TeamSpeak3_Helper_String(implode(TeamSpeak3::SEPARATOR_LIST, $rpl));
    }
}
