const MAGIC=0xdead;
const PKT_TYPE=function(){
    var len = 0;
    return {
        PKT_TYPE_ACK:len++,
        PKT_TYPE_PARAS:len++,             
        PKT_TYPE_POWER_CH:len++,          //power_ch_t
        PKT_TYPE_POWER_TOTAL:len++,       //power_total_t
        PKT_TYPE_POWER_RESET:len++,
        PKT_TYPE_CH_ALL:len++,
        PKT_TYPE_SCAN:len++,
        PKT_TYPE_FACTORY:len++,
        PKT_TYPE_ALARM:len++,
        PKT_TYPE_SENSOR:len++,
        PKT_TYPE_BREAKER:len++,
        PKT_TYPE_STAT:len++,
        PKT_TYPE_MESG:len++,
        PKT_TYPE_FILE:len++,
        PKT_TYPE_SLAVE_LIST:len++,
    }
}();
const SUB_TYPE=function(){
    var len = 0;
    return {
        SUB_TYPE_POWER_SWITCH:len++,             
        SUB_TYPE_POWER_ALARM:len++,             
        SUB_TYPE_POWER_THRESHOLD:len++,         //power_ch_t
        SUB_TYPE_POWER_OPEN_DELAY:len++,        //power_total_t
        SUB_TYPE_POWER_CLOSE_DELAY:len++,
        
        SUB_TYPE_PARAS_SYS:len++,
        SUB_TYPE_PARAS_MODBUS:len++,
        SUB_TYPE_PARAS_MISC:len++,
        SUB_TYPE_PARAS_PROD:len++,
        SUB_TYPE_PARAS_SERV:len++,
        SUB_TYPE_PARAS_NETWORK:len++,
    }
}();
const PDU_TYPE=function(){
    var len = 0;
    return {
    PDU_AC_I1O1:len++,
    PDU_DC_I1O1:len+=2,
    PDU_AC_I3O3:len++,
    PDU_AC_I3O1:len++,
    PDU_AC_I3O1_H:len++,
    }
}();
const ALARM_ACT=function(){
    var len = 1;
    return {
    ALARM_ACT_CLOSE_CH:len++,
    ALARM_ACT_MESG:len++,
    ALARM_ACT_CLOSE_CHALL:len++,
    }
}();
const IP_MODE=function(){
    var len = 0;
    return {
    IP_MODE_DHCP:len++,
    IP_MODE_STATIC:len++,
    }
}();
const IP_VER=function(){
    var len = 0;
    return {
    IP_VER_ERR:len++,
    IP_VER_V4:len++,
    IP_VER_V6:len++,
    }
}();
const MODBUS_MODE=function(){
    var len = 0;
    return {
    MODBUS_MASTER:len++,
    MODBUS_SLAVE:len++,
    }
}();
const LANG_ID=function(){
    var len = 0;
    return {
    LANG_ID_CHINESE:len++,
    LANG_ID_ENGLISH:len++,
    LANG_ID_RUSSIAN:len++,
    LANG_ID_SPANISH:len++,
    LANG_ID_PORTYGYESE:len++,
    LANG_ID_GERMAN:len++,
    LANG_ID_FRENCH:len++,
    LANG_ID_ITALIAN:len++,
    LANG_ID_JAPANESE:len++,
    
    LANG_ID_MAX:len++,
    }
}();

///////////////////////////////////////////////////////
function array_to_string(data){
    const decoder = new TextDecoder();
    return decoder.decode(new Uint8Array(data));
}

function array_set(array,str,offset){
    const encoder = new TextEncoder(); // ĬÈÏ'utf-8'±àÂë
    const buffer = encoder.encode(str);
    array.set(buffer);
    array.fill(offset, buffer.length);
}

function string_to_array(data,len){
    const encoder = new TextEncoder(); // ĬÈÏ'utf-8'±àÂë
    const buffer = encoder.encode(data);
    const fixedArray = new Uint8Array(len);
    fixedArray.set(buffer);
    fixedArray.fill(0, buffer.length);
    return fixedArray.buffer;
}
function array_cat(a1,a2){
    var tlen=a1.byteLength+a2.byteLength;
    var buffer = new ArrayBuffer(tlen);
    var vw = new Uint8Array(buffer);
    
    var vw1 = new Uint8Array(a1);
    for(var i=0; i<a1.byteLength; i++) {
        vw[i] = vw1[i];
    }
    
    var vw2 = new Uint8Array(a2);
    for(var i=0; i<a2.byteLength; i++) {
        vw[i+a1.byteLength] = vw2[i];
    }
    return buffer;
}
function mk_hdr_bin(addr,type,subtype,nack,flag,dlen)
{
    var tmp,length=0;
    var buffer = new ArrayBuffer(14);
    
    tmp = new DataView(buffer, length);
    var t = MAGIC;
    tmp.setUint16(0,t,true);    //magic
    length += 2;

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,addr,true);  //addr
    length += 1;

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,type,true);  //type
    length += 1;

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,0,true);     //subtype
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint8(0,0,true);     //nack
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint32(0,flag,true);     //flag
    length += 4;
    
    tmp = new DataView(buffer, length);
    tmp.setUint32(0,dlen,true);    //dlen
    length += 4;
    
    return buffer;
}
function mk_hdr_obj(addr,type,subtype,nack,flag,dlen)
{
    this.magic = MAGIC;
    this.addr = addr;
    this.type = type;
    this.subtype = subtype;
    this.flag = flag;
    this.dlen = dlen;
}
function pkt_to_bin(addr,type,subtype,nack,flag,js)
{
    var tmp;
    var buffer = new mk_hdr_bin(addr,type,subtype,nack,flag,js.len);
    
    switch(type){
        case PKT_TYPE.PKT_TYPE_POWER_CH:
        tmp = new powerc_to_bin(js);
        break;

        case PKT_TYPE.PKT_TYPE_POWER_TOTAL:
        tmp = new powert_to_bin(js);
        break;

        case PKT_TYPE.PKT_TYPE_ALARM:
        tmp = new alarm_to_bin(js);
        break;

        case PKT_TYPE.PKT_TYPE_PARAS:
        {
            switch(subtype) {
                case SUB_TYPE_PARAS_SYS:
                {
                    tmp = new sys_to_bin(js);
                }
                break;
                
                case SUB_TYPE_PARAS_MODBUS:
                {
                    tmp = new modbus_to_bin(js);
                }
                break;
                
                case SUB_TYPE_PARAS_MISC:
                {
                    tmp = new misc_to_bin(js);
                }
                break;
                
                case SUB_TYPE_PARAS_PROD:
                {
                    tmp = new prod_to_bin(js);
                }
                break;
                
                case SUB_TYPE_PARAS_SERV:
                {
                    tmp = new serv_to_bin(js);
                }
                break;
                
                case SUB_TYPE_PARAS_NETWORK:
                {
                    tmp = new network_to_bin(js);
                }
                break;
            }
        }
        
        break;
            
        default:
        return tmp;
    }
    return array_cat(buffer,tmp);
}
function bin_to_pkt(bin)
{
    var hdr = new bin_to_hdr(bin);
    
    var data = bin.slice(hdr.len);
    if(data.byteLength>0) {
        switch(hdr.type) {
            case PKT_TYPE.PKT_TYPE_POWER_CH:
                hdr.powerc = new bin_to_powerc(data);
                break;

            case PKT_TYPE.PKT_TYPE_POWER_TOTAL:
                hdr.powert = BIN.powert.b2j(data);
                break;
               
           case PKT_TYPE.PKT_TYPE_ALARM:
                hdr.alarmd = BIN.alarmd.b2j(data);
                break;
            
           case PKT_TYPE.PKT_TYPE_ALARM:
                hdr.alarmd = BIN.alarmd.b2j(data);
                break;
           
           case PKT_TYPE.PKT_TYPE_SLAVE_LIST:
                hdr.slaves = BIN.alarmd.b2j(data);
                break;
           
           default:
                console.log("wrong hdr type: "+hdr.type);
        }
    }
    return hdr;
}
///////////////////////////////////////////////////
function bin_to_hdr(bin) {
    var tmp, length=0;

    tmp = new DataView(bin, length);
    this.magic = tmp.getUint16(0,true);
    length += 2;

    tmp = new DataView(bin, length);
    this.addr = tmp.getUint8(0,true);
    length += 1;

    tmp = new DataView(bin, length);
    this.type = tmp.getUint8(0,true);
    length += 1;
    
    tmp = new DataView(bin, length);
    this.subtype = tmp.getUint8(0,true);
    length += 1;

    tmp = new DataView(bin, length);
    this.nack = tmp.getUint8(0,true);
    length += 1;
    
    tmp = new DataView(bin, length);
    this.flag = tmp.getUint8(0,true);
    length += 4;

    tmp = new DataView(bin, length);
    this.dlen = tmp.getUint32(0,true);
    length += 4;

    this.len = length;
}
function bin_to_info(bin) {
    var tmp, length=0;

    this.name = array_to_string(bin.slice(length,32));
    length += 32;

    tmp = new DataView(bin, length);
    this.type = tmp.getUint8(0,true);
    length += 1;

    tmp = new DataView(bin, length);
    this.addr = tmp.getUint8(0,true);
    length += 1;

    tmp = new DataView(bin, length);
    this.ch = tmp.getUint8(0,true);
    length += 1;

    tmp = new DataView(bin, length);
    this.sch = tmp.getUint8(0,true);
    length += 1;
    
    tmp = new DataView(bin, length);
    this.ph_id = tmp.getUint8(0,true);
    length += 1;
    
    tmp = new DataView(bin, length);
    this.ph_val = tmp.getUint8(0,true);
    length += 1;
    
    tmp = new DataView(bin, length);
    this.start_delay = tmp.getUint32(0,true);
    length += 4;
    
    tmp = new DataView(bin, length);
    this.stop_delay = tmp.getUint32(0,true);
    length += 4;

    this.len = length;
}
function bin_to_power(bin) {
    var tmp, length=0;

    tmp = new DataView(bin, length);
    this.voltage = tmp.getFloat32(0,true);
    length += 4;

    tmp = new DataView(bin, length);
    this.current = tmp.getFloat32(0,true);
    length += 4;

    tmp = new DataView(bin, length);
    this.power = tmp.getFloat32(0,true);
    length += 4;

    tmp = new DataView(bin, length);
    this.freq = tmp.getFloat32(0,true);
    length += 4;
    
    tmp = new DataView(bin, length);
    this.factor = tmp.getFloat32(0,true);
    length += 4;

    tmp = new DataView(bin, length);
    this.consump = tmp.getFloat32(0,true);
    length += 4;
    
    tmp = new DataView(bin, length);
    this.active = tmp.getFloat32(0,true);
    length += 4;
    
    tmp = new DataView(bin, length);
    this.reactive = tmp.getFloat32(0,true);
    length += 4;
    
    tmp = new DataView(bin, length);
    this.ph_out = tmp.getUint8(0,true);
    length += 1;

    tmp = new DataView(bin, length);
    this.status = tmp.getUint8(0,true);
    length += 1;

    tmp = new DataView(bin, length);
    this.nwire = tmp.getUint8(0,true);
    length += 1;

    this.len = length;
}
function bin_to_alarm(bin) {
    var tmp, length=0;

    tmp = new DataView(bin, length);
    this.v_upper = tmp.getUint8(0,true);
    length += 1;

    tmp = new DataView(bin, length);
    this.v_lower = tmp.getUint8(0,true);
    length += 1;

    tmp = new DataView(bin, length);
    this.c_upper = tmp.getUint8(0,true);
    length += 1;

    tmp = new DataView(bin, length);
    this.p_upper = tmp.getUint8(0,true);
    length += 1;
    
    tmp = new DataView(bin, length);
    this.w_upper = tmp.getUint8(0,true);
    length += 1;
    
    tmp = new DataView(bin, length);
    this.ph_loss = tmp.getUint8(0,true);
    length += 1;

    this.len = length;
}
function bin_to_thrval(bin) {
    var tmp, length=0;
    
    tmp = new DataView(bin, length);
    this.en = tmp.getUint8(0,true);
    length += 1;

    tmp = new DataView(bin, length);
    this.val = tmp.getFloat32(0,true);
    length += 4;

    tmp = new DataView(bin, length);
    this.act = tmp.getUint8(0,true);
    length += 1;

    this.act_para = [];
    tmp = new DataView(bin, length);
    for(var i=0; i<14; i++) {
        this.act_para[i] = tmp.getUint8(i,true);
    }
    length += 14;

    this.len = length;
}
function bin_to_thr(bin) {
    var tmp, length=0;
    
    this.v_upper = new bin_to_thrval(bin.slice(length));
    length += this.v_upper.len;
    
    this.v_lower = new bin_to_thrval(bin.slice(length));
    length += this.v_lower.len;
    
    this.c_upper = new bin_to_thrval(bin.slice(length));
    length += this.c_upper.len;
    
    this.p_upper = new bin_to_thrval(bin.slice(length));
    length += this.p_upper.len;
    
    this.w_upper = new bin_to_thrval(bin.slice(length));
    length += this.w_upper.len;

    this.len = length;
}
////////////////////////////////
function bin_to_ver(bin) {
    var tmp, length=0;
    
    this.ver = array_to_string(bin.slice(length,16));
    length += 16;
    
    this.addr = array_to_string(bin.slice(length,32));
    length += 32;

    this.len = length;
}
function bin_to_sys(bin) {
    var tmp, length=0;
    
    tmp = new DataView(bin, length);
    this.lang = tmp.getUint8(0,true);
    length += 1;
    
    tmp = new DataView(bin, length);
    this.tzone = tmp.getInt8(0,true);
    length += 1;

    this.len = length;
}
function bin_to_modbus(bin) {
    var tmp, length=0;
    
    tmp = new DataView(bin, length);
    this.mode = tmp.getUint8(0,true);
    length += 1;
    
    tmp = new DataView(bin, length);
    this.addr = tmp.getUint8(0,true);
    length += 1;
    
    tmp = new DataView(bin, length);
    this.baud = tmp.getUint32(0,true);
    length += 4;

    this.len = length;
}
function bin_to_misc(bin) {
    var tmp, length=0;
    
    tmp = new DataView(bin, length);
    this.watchdog = tmp.getUint8(0,true);
    length += 1;
    
    tmp = new DataView(bin, length);
    this.fliptime = tmp.getUint32(0,true);
    length += 4;
    
    tmp = new DataView(bin, length);
    this.led = tmp.getUint8(0,true);
    length += 1;
    
    tmp = new DataView(bin, length);
    this.beep = tmp.getUint8(0,true);
    length += 1;
    
    tmp = new DataView(bin, length);
    this.rotate = tmp.getUint16(0,true);
    length += 2;

    this.len = length;
}
function bin_to_prod(bin) {
    var tmp, length=0;
    
    tmp = new DataView(bin, length);
    this.id = tmp.getUint8(0,true);
    length += 1;
    
    this.pname = array_to_string(bin.slice(length,32));
    length += 32;
    
    this.pnumber = array_to_string(bin.slice(length,32));
    length += 32;
    
    this.status = array_to_string(bin.slice(length,32));
    length += 32;
    
    this.name = array_to_string(bin.slice(length,32));
    length += 32;
    
    this.number = array_to_string(bin.slice(length,32));
    length += 32;
    
    this.date = array_to_string(bin.slice(length,32));
    length += 32;
    
    this.batch = array_to_string(bin.slice(length,32));
    length += 32;
    
    tmp = new DataView(bin, length);
    this.type = tmp.getUint8(0,true);
    length += 1;
    
    tmp = new DataView(bin, length);
    this.samptime = tmp.getUint32(0,true);
    length += 4;
    
    tmp = new DataView(bin, length);
    this.savetime = tmp.getUint32(0,true);
    length += 4;
    
    tmp = new DataView(bin, length);
    this.ph_group = tmp.getUint16(0,true);
    length += 2;
    
    tmp = new DataView(bin, length);
    this.ch_delay = tmp.getUint16(0,true);
    length += 2;

    this.len = length;
}
function bin_to_serv(bin) {
    var tmp, length=0;
    
    this.name = array_to_string(bin.slice(length,256));
    length += 256;
    
    this.site = array_to_string(bin.slice(length,256));
    length += 256;
    
    this.mail = array_to_string(bin.slice(length,256));
    length += 256;
    
    this.addr = array_to_string(bin.slice(length,256));
    length += 256;
    
    this.tele = array_to_string(bin.slice(length,32));
    length += 32;

    this.len = length;
}
function bin_to_network(bin) {
    var tmp, length=0;
      
    tmp = new DataView(bin, length);
    this.mode = tmp.getUint8(0,true);
    length += 1;
    
    this.ipaddr = array_to_string(bin.slice(length,48));
    length += 48;
    
    this.mask   = array_to_string(bin.slice(length,48));
    length += 48;
    
    this.gateway = array_to_string(bin.slice(length,48));
    length += 48;
    
    this.dns1 = array_to_string(bin.slice(length,48));
    length += 48;
    
    this.dns2 = array_to_string(bin.slice(length,48));
    length += 48;

    this.len = length;
}
////////////////////////////////
function bin_to_powerc(bin) {
    var tmp, bin2, length=0;

    this.info = new bin_to_info(bin);
    length += this.info.len;
    
    this.power = [];
    for(var i=0; i<3; i++) {
        this.power[i] = new bin_to_power(bin.slice(length));
        length += this.power[i].len;
    }
    
    this.thr = new bin_to_thr(bin.slice(length));
    length += this.thr.len;
    
    this.alarm = new bin_to_alarm(bin.slice(length));
    length += this.alarm.len;
    
    tmp = new DataView(bin, length);
    this.time = tmp.getUint32(0,true);
    length += 4;
    
    tmp = new DataView(bin, length);
    this.pbrd = tmp.getUint32(0,true);
    length += 4;

    this.len = length;
}
function bin_to_total(bin) {
    var tmp, length=0;

    tmp = new DataView(bin, length);
    this.voltage = tmp.getFloat32 (0,true);
    length += 4;

    tmp = new DataView(bin, length);
    this.current = tmp.getFloat32(0,true);
    length += 4;

    tmp = new DataView(bin, length);
    this.power = tmp.getFloat32(0,true);
    length += 4;

    tmp = new DataView(bin, length);
    this.freq = tmp.getFloat32(0,true);
    length += 4;
    
    tmp = new DataView(bin, length);
    this.factor = tmp.getFloat32(0,true);
    length += 4;
    
    tmp = new DataView(bin, length);
    this.consump = tmp.getFloat32(0,true);
    length += 4;

    tmp = new DataView(bin, length);
    this.active = tmp.getFloat32(0,true);
    length += 4;

    tmp = new DataView(bin, length);
    this.reactive = tmp.getFloat32(0,true);
    length += 4;
    
    this.len = length;
}
function bin_to_powert(bin) {
    var tmp, length=0;

    tmp = new DataView(bin, length);
    this.type = tmp.getUint8(0,true);
    length += 1;

    this.total = [];
    for(var i=0; i<3; i++) {
        this.total[i] = new bin_to_total(bin.slice(length));
        length += this.total[i].len;
    }
    
    this.len = length;
}
function bin_to_alarmd(bin) {
    var tmp, length=0;
    
    tmp = new DataView(bin, length);
    this.ch = tmp.getUint8(0,true);
    length += 1;
    
    this.alarm = new bin_to_alarm(bin.slice(length));
    length += this.alarm.len;
    
    tmp = new DataView(bin, length);
    this.time = tmp.getUint32(0,true);
    length += 4;

    this.len = length;
}
function bin_to_paras(bin) {
    var tmp, length=0;
    
    this.lang = new bin_to_sys(bin.slice(length));
    length += this.lang.len;
    
    this.ver = new bin_to_ver(bin.slice(length));
    length += this.ver.len;
    
    this.cas = new bin_to_modbus(bin.slice(length));
    length += this.cas.len;
    
    this.misc = new bin_to_misc(bin.slice(length));
    length += this.misc.len;
    
    this.prod = new bin_to_prod(bin.slice(length));
    length += this.prod.len;
    
    this.serv = new bin_to_serv(bin.slice(length));
    length += this.serv.len;
    
    this.network = new bin_to_network(bin.slice(length));
    length += this.network.len;

    this.len = length;
}
function bin_to_slist(bin) {
    var tmp, length=0;
    
    tmp = new DataView(bin, length);
    this.cnt = tmp.getUint8(0,true);
    length += 1;
    
    this.addr = [];
    tmp = new DataView(bin, length);
    for(var i=0; i<this.cnt; i++) {
        this.addr[i] = tmp.getUint8(i,true);
    }
    length += this.cnt;

    this.len = length;
}


///////////////////////////////////////////////////
function hdr_to_bin(js) {
    var tmp, length=0;
    var buffer = new ArrayBuffer(js.len);

    tmp = new DataView(buffer, length);
    tmp.setUint16(0,js.magic,true);
    length += 2;

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.addr,true);
    length += 1;

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.type,true);
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.subtype,true);
    length += 1;

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.nack,true);
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint32(0,js.flag,true);
    length += 4;
    
    tmp = new DataView(buffer, length);
    tmp.setUint32(0,js.dlen,true);
    length += 4;

    return buffer;
}
function info_to_bin(js) {
    var tmp, length=0;
    var name = string_to_array(js.name, 32);
    var buffer = new ArrayBuffer(js.len-name.byteLength);

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.type,true);
    length += 1;

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.addr,true);
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.ch,true);
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.sch,true);
    length += 1;

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.ph_id,true);
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.ph_val,true);
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint32(0,js.start_delay,true);
    length += 4;
    
    tmp = new DataView(buffer, length);
    tmp.setUint32(0,js.stop_delay,true);
    length += 4;

    return array_cat(name,buffer);
}
function power_to_bin(js) {
    var tmp, length=0;
    var buffer = new ArrayBuffer(js.len);

    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.voltage,true);
    length += 4;

    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.current,true);
    length += 4;

    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.power,true);
    length += 4;

    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.freq,true);
    length += 4;
    
    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.factor,true);
    length += 4;
    
    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.consump,true);
    length += 4;

    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.active,true);
    length += 4;
    
    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.reactive,true);
    length += 4;
    
    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.ph_put,true);
    length += 1;

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.status,true);
    length += 1;

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.nwire,true);
    length += 1;

    return buffer;
}
function alarm_to_bin(js) {
    var tmp, length=0;
    var buffer = new ArrayBuffer(js.len);

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.v_upper,true);
    length += 1;

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.v_lower,true);
    length += 1;

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.c_upper,true);
    length += 1;

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.p_upper,true);
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.w_upper,true);
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.ph_loss,true);
    length += 1;

    return buffer;
}
function thrval_to_bin(js) {
    var tmp, length=0;
    var buffer = new ArrayBuffer(js.len);
    
    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.en,true);
    length += 1;

    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.val,true);
    length += 4;

    tmp = new DataView(buffer, length);
    tmp.getUint8(0,js.act,true);
    length += 1;

    tmp = new DataView(buffer, length);
    for(var i=0; i<14; i++) {
        tmp.setUint8(i,js.act_para[i],true);
    }
    length += 14;

    return buffer;
}
function thr_to_bin(js) {
    var bin,tmp, length=0;
    
    bin = thrval_to_bin(js.v_upper);
    tmp = thrval_to_bin(js.v_lower);
    
    bin = array_cat(bin, tmp);
    tmp = thrval_to_bin(js.c_upper);
    bin = array_cat(bin, tmp);
    
    tmp = thrval_to_bin(js.p_upper);
    bin = array_cat(bin, tmp);
    
    tmp = thrval_to_bin(js.w_upper);
    bin = array_cat(bin, tmp);

    return bin;
}
////////////////////////////////
function sys_to_bin(js) {
    var tmp, length=0;
    var buffer = new ArrayBuffer(js.len);

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.lang,true);
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setInt8(0,js.tzone,true);
    length += 1;
    
    return buffer;
}
function modbus_to_bin(js) {
    var tmp, length=0;
    var buffer = new ArrayBuffer(js.len);

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.mode,true);
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.addr,true);
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint32(0,js.baud,true);
    length += 4;
    
    return buffer;
}
function misc_to_bin(js) {
    var tmp, length=0;
    var buffer = new ArrayBuffer(js.len);

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.watchdog,true);
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.fliptime,true);
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.led,true);
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.beep,true);
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint16(0,js.rotate,true);
    length += 2;
    
    return buffer;
}
function prod_to_bin(js) {
    var tmp, length=0;
    var buffer = new ArrayBuffer(js.len);

    tmp = new DataView(buffer, length);
    tmp.setUint32(0,js.id,true);
    length += 4;
    
    array_set(buffer,js.pname,length);
    length += 32;
    
    array_set(buffer,js.pnumber,length);
    length += 32;
    
    array_set(buffer,js.status,length);
    length += 32;
    
    array_set(buffer,js.name,length);
    length += 32;
    
    array_set(buffer,js.number,length);
    length += 32;
    
    array_set(buffer,js.date,length);
    length += 32;
    
    array_set(buffer,js.batch,length);
    length += 32;
    
    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.type,true);
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.count,true);
    length += 1;
    
    tmp = new DataView(buffer, length);
    tmp.setUint32(0,js.samptime,true);
    length += 4;
    
    tmp = new DataView(buffer, length);
    tmp.setUint32(0,js.savetime,true);
    length += 4;
    
    tmp = new DataView(buffer, length);
    tmp.setUint16(0,js.ph_group,true);
    length += 2;
    
    tmp = new DataView(buffer, length);
    tmp.setUint16(0,js.ch_delay,true);
    length += 2;
    
    return buffer;
}
function serv_to_bin(js) {
    var tmp, length=0;
    var buffer = new ArrayBuffer(js.len);

    array_set(buffer,js.name,length);
    length += 256;
    
    array_set(buffer,js.site,length);
    length += 256;
    
    array_set(buffer,js.mail,length);
    length += 256;
    
    array_set(buffer,js.addr,length);
    length += 256;
    
    array_set(buffer,js.tele,length);
    length += 32;
    
    return buffer;
}
function network_to_bin(js) {
    var tmp, length=0;
    var buffer = new ArrayBuffer(js.len);

    tmp = new DataView(buffer, length);
    tmp.setUint8(0,js.mode,true);
    length += 1;
    
    array_set(buffer,js.ipaddr,length);
    length += 48;
    
    array_set(buffer,js.mask,length);
    length += 48;
    
    array_set(buffer,js.gateway,length);
    length += 48;
    
    array_set(buffer,js.dns1,length);
    length += 48;
    
    array_set(buffer,js.dns2,length);
    length += 48;
    
    return buffer;
}
////////////////////////////////
function powerc_to_bin(js) {
    var bin,tmp, length=0;
    
    bin = new info_to_bin(js.info);
    
    for(var i=0; i<3; i++) {
        tmp = new power_to_bin(js.power[i]);
        bin = array_cat(bin, tmp);
    }
    
    tmp = new thr_to_bin(js.thr);
    bin = array_cat(bin, tmp);

    tmp = new alarm_to_bin(js.alarm);
    bin = array_cat(bin, tmp);
    
    var buf = new ArrayBuffer(8);
    tmp = new DataView(buf, 0);
    tmp.setUint32(0,js.time,true);
    tmp.setUint32(4,js.pbrd,true);
    
    bin = array_cat(bin, buf);

    return bin;
}
function total_to_bin(js) {
    var tmp, length=0;
    var buffer = new ArrayBuffer(js.len);

    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.voltage,true);
    length += 4;

    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.current,true);
    length += 4;

    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.power,true);
    length += 4;

    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.freq,true);
    length += 4;
    
    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.factor,true);
    length += 4;
    
    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.consump,true);
    length += 4;
    
    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.factor,true);
    length += 4;
    
    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.active,true);
    length += 4;
    
    tmp = new DataView(buffer, length);
    tmp.setFloat32(0,js.reactive,true);
    length += 4;

    return buffer;
}
function powert_to_bin(js) {
    var tmp,bin2,length=0;
    var bin = new ArrayBuffer(1);

    tmp = new DataView(bin, length);
    tmp.setUint8(0,js.type,true);
    length += 4;

    for(var i=0; i<3; i++) {
        bin2 = total_to_bin(js.total[i]);
        bin = array_cat(bin, bin2);
    }

    return bin;
}
function alarmd_to_bin(js) {
    var tmp, length=0;
    var bin,buffer = new ArrayBuffer(1);

    tmp = new DataView(buffer, 0);
    tmp.setUint8(0,js.ch,true);
    
    var alarm = alarm_to_bin(js.alarm);
    bin = array_cat(buffer, alarm);

    buffer = new ArrayBuffer(4);
    tmp = new DataView(buffer, 0);
    tmp.setUint32(0,js.time,true);

    return array_cat(bin, buffer);
}
//////////////////////////////////////////////////////////////
function bin_parse(bin)
{
    var tmp,h = new bin_to_hdr(bin);
    if(h.nack == 1){
        //tmp = myBinary.ack.bin2js(bin,this.h.len,true);
        //myLog('log',tmp);
        //var data = tmp.data;
    }
    
    var data = bin.slice(h.len);
    if(data.byteLength>0 && h.dlen==data.byteLength) {
        switch(h.type) {
            case PKT_TYPE.PKT_TYPE_POWER_CH:
            {
                var tmp=[],length=0;
                for(var i=0;; i++) {
                    tmp[i] =  new bin_to_powerc(data.slice(length));
                    length += tmp[i].len;
                    if(length >= data.byteLength) {
                        break;
                    }
                }
                h.powerc = tmp;
            }
            break;

            case PKT_TYPE.PKT_TYPE_POWER_TOTAL:
            h.powert = new bin_to_powert(data);
            break;
               
           case PKT_TYPE.PKT_TYPE_ALARM:
            h.alarmd = new bin_to_alarm(data);
            break;
           
           case PKT_TYPE.PKT_TYPE_SLAVE_LIST:
            h.alarmd = new bin_to_slist(data);
            break;
           
           case PKT_TYPE.PKT_TYPE_PARAS:
            h.paras = new bin_to_paras(data);
            break;
           
           default :
           console.log("wrong hdr type: "+h.type);
           break;
        }
    }
    return h;
};


//////////////////////////////////////////
function LOG(){
    var data = [];
    for(var i= 1,len=arguments.length;i<len;i++){
        data.push(arguments[i])
    }
    console.log(data);
}


function WS(url,fn) {
    this.url = url;
    this.name = 'myWebs';
    this.open = _open;
    this.reopen = _reopen;
    this.close = _close;
    this.send = _send;
    this.state = _state;
    this.setcb = _setcb;
    this.closeCount = 0;
    this.maxConnect = 100;
    var his = this;
    this.open();
    function _open() {
        console.log("____url: ", his.url);
        his.ws = new WebSocket(his.url);
        his.ws.binaryType = 'arraybuffer';
        his.ws.onopen = _onopen;
        his.ws.onclose = _onclose;
        his.ws.onmessage = _onmsg;
        his.ws.onerror = _onerror;
    }

    function _reopen() {
        _close();
        _open(his.url);
    }

    function _close() {
        his.ws.close();
    }

    function _send(msg) {
        if (his.ws.readyState != WebSocket.OPEN)
            return;
        his.ws.send(msg);
    }

    function _state() {
        return his.ws.readyState;
    }

    function _setcb(tp, f) {
        switch (tp) {
            case "open":
                his.ws.onopen = f;
                break;

            case "close":
                his.ws.onclose = f;
                break;

            case "msg":
                his.ws.onmessage = f;
                break;

            case "err":
                his.ws.onerror = f;
                break;
        }
    }

    function loop_send() {
        console.log("PKT_TYPE_POWER_CH request");
        _send(mk_hdr(PKT_TYPE.PKT_TYPE_POWER_CH));
        setTimeout(loop_send, 2000);
    }


    function _onopen(evt) {
        his.closeCount = 0;
        console.log("___ ws.onopen");
        //setTimeout(loop_send, 2000);
    }

    function _onclose(evt) {
        LOG("ws.onclose");
        setTimeout(_reopen, 3000);
        his.closeCount += 1;
    }

    function _onmsg(evt) {
        console.log("___ ws.onmsg");
        if (evt.data instanceof ArrayBuffer) {
            var obj=bin_parse(evt.data);
            fn(obj);
        }
    }

    function _onerror(evt) {
        console.log("___ ws.onerror");
        //write_scr('<span style="color: red;">ERROR:</span> '+ evt.data);
    }

}