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km-BLEscanner.js
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km-BLEscanner.js
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let KMConnector=require('kmconnector/KMConnectorBLE');
////////
module.exports = function(RED) {
let nowScaningNodeId=null;//スキャナーNodeが複数ある場合、他のスキャナーNodeをトリガーしない為のフラグ
let nowScaningRemainingTime=0;
let nowScaningCounterInterval=0;
//スキャンの開始
function startScan(time,countCB=function(){}){
let tm=parseInt(time,10);
tm=isNaN(tm)?20:tm;
clearInterval(nowScaningCounterInterval);
nowScaningRemainingTime=tm;
nowScaningCounterInterval=setInterval(function(){
--nowScaningRemainingTime;
countCB(nowScaningRemainingTime);
if(nowScaningRemainingTime<=0){clearInterval(nowScaningCounterInterval);}
},1000);
KMConnector.KMMotorOneBLE.startScanToCreateInstance(tm*1000,false);
}
/*-------------------------------
node red node constructor
-------------------------------*/
function kmBLEscanner(config) {
RED.nodes.createNode(this,config);//instance init
let node = this;
node.discoverName=[];
node.search_cnt=0;//n個発見でスキャン停止 0は無制限
this._statusUpdateDuringScanning=function(time){
node.status({fill:"blue",shape:"dot",text:"["+time+"] Scanning > ["+node.discoverName.join("] [")+"]"});
};
this._discoverMotorLis=function(kMMotorOneBLE){
if(nowScaningNodeId!==node.id){
return;
}
let fullname=kMMotorOneBLE.deviceInfo.name;
let name= fullname&&typeof fullname ==="string"? fullname.split('#')[0]:null;
let ledColor= fullname&&typeof fullname ==="string"? fullname.split('#')[1]:null;
//console.log("MotorName: "+name);
node.discoverName.push(name);
node._statusUpdateDuringScanning(nowScaningRemainingTime);
node.send([{type:"discoverMotor",payload:name,motorFullname:fullname,motorLedColor: ledColor,isConnect:kMMotorOneBLE.deviceInfo.isConnect}]);
//n個発見で停止
if(node.search_cnt&&node.search_cnt<=node.discoverName.length){
KMConnector.KMMotorOneBLE.stopScan();//info::stopScan停止時はKMMotorOneBLE.EVENT_TYPE.scanTimeout (_scanTimeoutLis)は発火しない
node._scanTimeoutLis();
}
};
this._scanTimeoutLis=function(){
if(nowScaningNodeId!==node.id){
return;
}
clearInterval(nowScaningCounterInterval);
nowScaningNodeId=null;
//console.log('onScanTimeout');
let motors=KMConnector.KMMotorOneBLE.motors;
let motorNemes=Object.keys(motors);
let deviceInfos={};
Object.keys(motors).forEach(function(k){
deviceInfos[k]=motors[k].deviceInfo;
});
node.status({fill:"green",shape:"ring",text:"Discover:["+motorNemes.join("] [")+"]"});
node.send([{type:"scanTimeout", payload: motorNemes,deviceInfos:deviceInfos}]);
};
//
KMConnector.KMMotorOneBLE.on(KMConnector.KMMotorOneBLE.EVENT_TYPE.discoverMotor,this._discoverMotorLis);
KMConnector.KMMotorOneBLE.on(KMConnector.KMMotorOneBLE.EVENT_TYPE.scanTimeout,this._scanTimeoutLis);
KMConnector.KMMotorOneBLE.once(KMConnector.KMMotorOneBLE.EVENT_TYPE.adapterStateChange,function(type){
if(type==="poweredOn"){
node.status({});
}else{
node.status({fill:"gray",shape:"ring",text:"BLE Disable"});
}
});
/**
* 引数 msg.payload
* ○通常スキャン(既存) int:スキャン時間ms
* ○スキャン停止 int:0 又は""
* ○n個発見で停止 string:スキャン時間ms,発見する個数
*/
this.on('input', function(msg){
if(KMConnector.KMMotorOneBLE.bleState!=="poweredOn"){
node.error("BLE adapter is disable");
return;
}
//他のスキャンノードで使用中は動作しない
if(nowScaningNodeId&&nowScaningNodeId!==node.id){
node.error("The scanner is in use on another node \""+nowScaningNodeId+"\"");
node.status({fill:"red",shape:"dot",text:"The scanner is in use on another node"});
return;
}
//引数取得と処置開始
let time=0;
node.search_cnt=0;
switch (typeof msg.payload){
case "number":
time=msg.payload;
break;
case "string":
let args=msg.payload.split(",");
time=isNaN(parseInt(args[0],10))?0:parseInt(args[0],10);
node.search_cnt=isNaN(parseInt(args[1],10))?0:parseInt(args[1],10);
break;
}
if(time){
//スキャン開始
nowScaningNodeId=node.id;
node.discoverName=[];
startScan(time<20?20:time,node._statusUpdateDuringScanning.bind(this));
node.status({fill:"blue",shape:"dot",text:"During scanning.."});
}else{
//スキャン停止コマンド
KMConnector.KMMotorOneBLE.stopScan();//info::stopScan停止時はKMMotorOneBLE.EVENT_TYPE.scanTimeout (_scanTimeoutLis)は発火しない
node._scanTimeoutLis();
}
});
this.on('close', function() {
nowScaningNodeId=null;
KMConnector.KMMotorOneBLE.removeListener(KMConnector.KMMotorOneBLE.EVENT_TYPE.discoverMotor,this._discoverMotorLis);
KMConnector.KMMotorOneBLE.removeListener(KMConnector.KMMotorOneBLE.EVENT_TYPE.scanTimeout,this._scanTimeoutLis);
});
//default status
let _mn=Object.keys(KMConnector.KMMotorOneBLE.motors);
if(_mn.length){
node.status({fill:"green",shape:"ring",text:"Discover:["+_mn.join("] [")+"]"});
}else {
node.status({});
}
}
RED.nodes.registerType("km-BLEscan",kmBLEscanner);
};