<?php
/**
 * Created by PhpStorm.
 * User: stanley-king
 * Date: 2018/7/7
 * Time: 下午11:29
 */

namespace room;

use Exception;
use Log;
use member_info;

class chatwo
{
    protected $mUserInfos;
    private   $mod_room;
    private   $mMapChat;

    public function __construct()
    {
        $this->mUserInfos = [];
        $this->mMapChat = [];
        $this->mod_room = Model('room');
    }

    public function messageOp($input)
    {
        $from = intval($input['from']);
        $to   = intval($input['to']);
        $seq  = $input['seq'];

        if($from <= 0 || $to <= 0) return false;

        $finfo = $this->find($from);
        $tinfo = $this->find($to);
        if($tinfo == false || $tinfo == false) return false;

        $type = proto_type::to_msgtype($input['type']);
        $content = $this->validate_content($input['content']);

        if($type == false || $content == false) return false;

        $msgid = $this->record_message($from,$to,$type,$content);
        $msg = ['from' => $finfo,'content' => $content, 'type' => $input['type'],'send_time' => time(),'msgid' => $msgid,'seq' => $seq];
        return $this->format_msg($from,$to,"message",$msg);
    }

    private function chatid($from,$to)
    {
        if($from > $to) {
            $hash = "{$to}_{$from}";
        } else {
            $hash = "{$from}_{$to}";
        }

        if(array_key_exists($hash,$this->mMapChat)) {
            return $this->mMapChat[$hash];
        }
        else
        {
            $chat_id = $this->mod_room->findChatid($from,$to);
            if($chat_id === false) {
                $chat_id = $this->mod_room->addChatwo($from,$to);
            }

            if($chat_id != false) {
                $this->mMapChat[$hash] = $chat_id;
            }

            return $chat_id;
        }
    }

    private function format_msg($from,$to,$op,$content)
    {
        $msg = [];

        $msg['msgtype'] = proto_type::msgtype_message;
        $msg['act']  = "room";
        $msg['op']   = "relay";
        $msg['relay_type'] = "users";
        if($from == $to) {
            $msg['receivers'] = [$to];
        } else {
            $msg['receivers'] = [$from,$to];
        }
        $msg['room'] = 0;
        $msg['receiver_type'] = proto_type::sroom_chatwo;

        $msg['body']['act']  = proto_type::act_chatwo;
        $msg['body']['op']   = $op;
        $msg['body']['content'] = $content;
        $msg['body']['msgtype'] = proto_type::msgtype_message;

        return $msg;
    }

    protected function find($userid)
    {
        try
        {
            if(array_key_exists($userid,$this->mUserInfos)) {
                return $this->mUserInfos[$userid];
            }
            else {
                $item = Model('member')->getMemberInfoByID($userid);
                $uinfo = new member_info($item);
                $result = ['nickname' => $uinfo->nickname(),'avatar' => $uinfo->avatar(),'userid' => intval($userid)];
                $this->mUserInfos[$userid] = $result;
                return $result;
            }
        }
        catch (Exception $ex)
        {
            Log::record($ex->getMessage(),Log::ERR);
            return false;
        }
    }

    protected function validate_content($content)
    {
        return $content;
    }

    protected function record_message($from,$to,$type,$content)
    {
        $chat_id = $this->chatid($from,$to);
        if($chat_id != false) {
            return $this->mod_room->addRoomMsg(['room_id' => $chat_id,'member_id' => $from, 'type' => $type,'msg' => $content,'add_time' => time(),'msg_type' => 1]);
        }
        else {
            return false;
        }
    }
}