function getID(str)
    local y, m, d, h, min, s, rand = string.unpack("<BBBBBBB", str:sub(1, -1)) -- only 1 pair
    return "\r\n时戳 20" .. y 
    .. "-" .. string.format("%02d",m) 
    .. "-" .. string.format("%02d",d) 
    .. " " .. string.format("%02d",h) 
    .. ":" .. string.format("%02d",min) 
    .. ":" .. string.format("%02d",s)
     .. "_" .. string.format("%02d",rand) .. "\r\n"end
     
function getCFG( str )
  -- body
  local sendInterval,maxTTWaitTime,maxTTRetryCnt,minTTPeriCnt,minTTsinal,timeout = string.unpack("<BBBBBB",str)
	local rst = "预置开窗\r\n"
	for i = 1, 60, 4 do
	    local v1, v2, v3, v4 = string.unpack("<BBBB", str:sub(6 + i, -1))
	    if v1 == v3 and v2 == v4 then
	        break
	    end
	    rst = rst .. "[" .. string.format("%02d", v1) .. ":" .. string.format("%02d", v2) .. " - " ..
	              string.format("%02d", v3) .. ":" .. string.format("%02d", v4) .. "]\r\n"
	end
  local maxSizePerFile,commMode,selfDesSW,locAlert,locRepInterval,isMaWin = string.unpack("<HBBBBb",str:sub(6+60+1,-1))
  rst = rst
  -- .."sendInterval\t\t"..sendInterval.."\r\n"
  .."maxTTWaitTime\t\t"..maxTTWaitTime.."分钟\r\n"
  .."maxTTRetryCnt\t\t"..maxTTRetryCnt.."次\r\n"
  .."minTTPeriCnt\t\t"..minTTPeriCnt.."次\r\n"
  .."minTTsinal\t\t"..minTTsinal.."\r\n"
  .."timeout\t\t\t"..timeout.."分钟\r\n"
  .."maxSizePerFile\t\t"..maxSizePerFile.." Bytes\r\n"
  .."commMode\t\t"..(commMode==0 and "TT" or "BD").."\r\n"
  .."selfDesSW\t\t"..(selfDesSW == 0 and "关" or "开").."\r\n"
  .."locAlert\t\t\t"..(locAlert== 0 and "关" or "开").."\r\n"
  .."locRepInterval\t\t"..locRepInterval.."分钟\r\n"
  .."isMaWin\t\t"..(isMaWin == 0 and "手动开窗，需手动关窗" or (isMaWin >0 and "手动开窗，"..isMaWin.."分钟后关窗" or "RTC")).."\r\n"
  return rst
end

function getBattInfo(str)
  local a1,a2,a3,a4,a5,a6,a7,a8,a9,b1,b2,b3,b4,b5,b6,b7,b8= string.unpack(">hhhhhhhhhhhhhhhhh",str)
  local rst = ""
  .."实际电压           "..(a1/100).."V\r\n"
  .."电芯数量           "..a2.."\r\n"
  .."电量               "..a3.."%\r\n"
  .."容量               "..(a4/100).."AH\r\n"
  .."输出电流           "..(a5/100).."A\r\n"
  .."充电电流           "..(a6/100).."A\r\n"
  .."温度1              "..a7.."℃\r\n"
  .."温度2              "..a8.."℃\r\n"
  .."温度3              "..a9.."℃\r\n"
  .."电芯1电压         "..(b1/1000).."V\r\n"
  .."电芯2电压         "..(b2/1000).."V\r\n"
  .."电芯3电压         "..(b3/1000).."V\r\n"
  .."电芯4电压         "..(b4/1000).."V\r\n"
  .."电芯5电压         "..(b5/1000).."V\r\n"
  .."电芯6电压         "..(b6/1000).."V\r\n"
  .."电芯7电压         "..(b7/1000).."V\r\n"
  .."电芯8电压         "..(b8/1000).."V\r\n"
  
                      apiAddPoint((a1/100),8)
                      apiAddPoint(a3,9)
  return rst
end

--解析
function parseInfo(data)
  local selfTest = 0x7001
  local battInfo = 0x8888
  local locInfo = 0x7011
  local depRes = 0x0608
  local warnMsg = 0x0d01
  local rtcTime = 0x4116
  local window = 0x1931
  local signalInfo = 0x6666
  local cmdReq = 0x0E32
  local dspReq = 0x2237
  local hearReq = 0x1937
  local hearSet= 0x1917
  local heartInfo= 0x1903
  local cfgReq = 0x7007
  local info={
    selfTest = "自检",
    battInfo = "电池信息",
    locInfo = "位置信息",
    depRes = "深度回复",
    warnMsg = "告警信息",
    rtcTime = "RTC时间",
    window = "开窗查询",
    signalInfo = "信号质量",
    cmdReq = "任务查询",
    dspReq = "DSP查询回复",
    hearReq = "心跳查询",
    hearSet = "心跳设置",
    hearInfo = "心跳信息",
    cfgReq = "配置查询",
  }
    local head, taddr, saddr, cmd = string.unpack(">HBBH", data) -- 澶х缂栫爜
    -- print(string.format("%04X",head))
    local rst = {cmd="",info=""}
    if head == 0x5aa5 then
      -- 逐项解析指令
        if cmd == selfTest then
          rst.cmd = info.selfTest
          local sysSta,xh,jh,commSpeed,powerLevel,flash,sd = string.unpack(">BBBBBHH",data:sub(9,-1))
          rst.info = "\r\n"
          .."系统状态      "..(sysSta==1 and "正常" or "异常").."\r\n"
          .."信号质量      "..xh.."\r\n"
          .."电池剩余电量   "..powerLevel.."%\r\n"
          .."flash剩余容量 "..flash.."MB\r\n"
          .."sd卡剩余容量  "..sd.."MB\r\n"
          ..getCFG(data:sub(18,-1))
        end

        if cmd == locInfo then
                  rst.cmd = info.locInfo
                  rst.info = getID(data:sub(8+1+1,-1))
                  local islocok = string.unpack("B",data:sub(8+1))
                  rst.info = rst.info.."位置状态 "..(islocok == 0 and "正常" or "异常").."\r\n"
                  rst.info = rst.info.. "信号,    经度,    纬度,    高度\r\n"
                  for i = 1, 80, 10 do
                      local xh, jd, wd, gd = string.unpack("<Bffb", data:sub(8+7 + 1 + i, -1)) -- only 1 pair
                      rst.info = rst.info.."["..string.format("%02d",(xh-0xE0))..", " .. string.format("%.6f",jd) .. ", " .. string.format("%.6f",wd) .. ", " .. string.format("%03d",gd) .. "] \r\n"
                      apiAddPoint(jd,0)
                      apiAddPoint(wd,1)
                  end
                  rst.info = rst.info..getBattInfo(data:sub(8+8+80+1,-1))
        end
        
        if cmd == battInfo then
	        rst.cmd = info.battInfo
	        --print(data:toHex())
	        rst.info = getID(data:sub(8+1,-1))
	        rst.info = rst.info..getBattInfo(data:sub(8+1+7,-1))
      	end
      	
      	if cmd == signalInfo then
            rst.cmd = info.signalInfo
            rst.info = getID(data:sub(8+1,-1))
            local y,m,d,h,min,s,rand= string.unpack(">BBBBBBB",data:sub(9,-1))
            .."信号质量 "
            for i = 1, 100, 1 do
              local v= string.unpack(">B",data:sub(8+7+i,-1))
              local sta= v&0x20 ==0x20 and "" or "-"
              v = (v&0x1F) == 0x1f and 99 or (v&0x1F)
              rst.info = rst.info..sta..v.." "
            end
          end
	      if cmd == depRes then
		    rst.cmd = info.depRes
		  end
		  if cmd == warnMsg then
		    rst.cmd = info.warnMsg
		  end
		  if cmd == rtcTime then
		    rst.cmd = info.rtcTime
		  end
		  if cmd == window then
		  	rst.cmd = info.window
		  end
		  if cmd == cmdReq then
		  	rst.cmd = info.cmdReq
		  end
        if cmd == hearReq then
		  	rst.cmd = info.hearReq
		  end
		  if cmd == hearSet then
		  	rst.cmd = info.hearSet
		  end
		  if cmd == dspReq then
		  	rst.cmd = info.dspReq
		  end
		  if cmd == heartInfo then
		  	rst.cmd = info.hearInfo
		  end
		  
		  if cmd == cfgReq then
            rst.cmd = info.cfgReq
            rst.info = getCFG(data:sub(9,-1))
          end
		  
    else--帧头不匹配
    	cmd="NONE"
    end

    --print rst
    for key, value in pairs(rst) do
      if key ~= "" then
        -- print(value)
        return "\r\n指令："..string.format("0x%04X",cmd).."\r\n----"..rst.cmd.."----"..rst.info.."\r\n"
      end
    end
end

function log2file(str)
	local f=io.open("D:/User/murmur/Desktop/log.txt","r+")
	if f then
	f:write(str)
	f:close()
	end
end
function getinfo(data)
	local info = "\r\n长度：["..string.len(data).."]字节\r\n原始数据：\r\n"..data:toHex()
	print(info)
	log2file(info)
	
	--按换行符切开，防止粘包
	local udata = data:split(string.char(0x5a)..string.char(0xa5))
	
	--每包都处理一遍
	for i=1,#udata do
		if #udata[i]>10 then
			local rst = parseInfo(string.char(0x5a)..string.char(0xa5)..udata[i])
			print(rst)
			log2file(rst)
		end
	end
end

--注册串口接收函数
apiSetCb("uart",getinfo)