/* eslint-disable prettier/prettier */
/*
 * lsn50v2-d20
 */
// Add ignorable variables in this array.
const ignore_vars = [];

function toTagoFormat(object_item, serie, prefix = '') {
  const result = [];
  for (const key in object_item) {
    if (ignore_vars.includes(key)) continue;

    if (typeof object_item[key] === 'object') {
      result.push({
        variable: object_item[key].variable || `${prefix}${key}`.toLowerCase(),
        value: object_item[key].value,
        serie: object_item[key].serie || serie,
        metadata: object_item[key].metadata,
        location: object_item[key].location,
        unit: object_item[key].unit,
      });
    } else {
      result.push({
        variable: `${prefix}${key}`.toLowerCase(),
        value: object_item[key],
        serie,
      });
    }
  }

  return result;
}

function Decoder(bytes) {
  const mode = (bytes[6] & 0x7c) >> 2;

  const decode = {};
  const array = [];

  if (mode !== 2 && mode !== 31) {
    array.push(decode.BatV = ((bytes[0] << 8) | bytes[1]) / 1000);

    decode.TempC1 = parseFloat(((((bytes[2] << 24) >> 16) | bytes[3]) / 10).toFixed(2));

    decode.ADC_CH0V = ((bytes[4] << 8) | bytes[5]) / 1000;

    decode.Digital_IStatus = bytes[6] & 0x02 ? "H" : "L";

    if (mode !== 6) {
      decode.EXTI_Trigger = bytes[6] & 0x01 ? "TRUE" : "FALSE";

      decode.Door_status = bytes[6] & 0x80 ? "CLOSE" : "OPEN";
    }
  }

  if (mode === "0") {
    decode.Work_mode = "IIC";

    if (((bytes[9] << 8) | bytes[10]) === 0) {
      decode.Illum = ((bytes[7] << 24) >> 16) | bytes[8];
    } else {
      decode.TempC_SHT = parseFloat(((((bytes[7] << 24) >> 16) | bytes[8]) / 10).toFixed(2));

      decode.Hum_SHT = parseFloat((((bytes[9] << 8) | bytes[10]) / 10).toFixed(1));
    }
  } else if (mode === "1") {
    decode.Work_mode = " Distance";

    decode.Distance_cm = parseFloat((((bytes[7] << 8) | bytes[8]) / 10).toFixed(1));

    if (((bytes[9] << 8) | bytes[10]) !== 65535) {
      decode.Distance_signal_strength = parseFloat(((bytes[9] << 8) | bytes[10]).toFixed(0));
    }
  } else if (mode === "2") {
    decode.Work_mode = " 3ADC";

    decode.BatV = bytes[11] / 10;

    decode.ADC_CH0V = ((bytes[0] << 8) | bytes[1]) / 1000;

    decode.ADC_CH1V = ((bytes[2] << 8) | bytes[3]) / 1000;

    decode.ADC_CH4V = ((bytes[4] << 8) | bytes[5]) / 1000;

    decode.Digital_IStatus = bytes[6] & 0x02 ? "H" : "L";

    decode.EXTI_Trigger = bytes[6] & 0x01 ? "TRUE" : "FALSE";

    decode.Door_status = bytes[6] & 0x80 ? "CLOSE" : "OPEN";

    if (((bytes[9] << 8) | bytes[10]) === 0) {
      decode.Illum = ((bytes[7] << 24) >> 16) | bytes[8];
    } else {
      decode.TempC_SHT = parseFloat(((((bytes[7] << 24) >> 16) | bytes[8]) / 10).toFixed(2));

      decode.Hum_SHT = parseFloat((((bytes[9] << 8) | bytes[10]) / 10).toFixed(1));
    }
  } else if (mode === "3") {
    decode.Work_mode = "3DS18B20";

    decode.TempC2 = parseFloat(((((bytes[7] << 24) >> 16) | bytes[8]) / 10).toFixed(2));

    decode.TempC3 = parseFloat(((((bytes[9] << 24) >> 16) | bytes[10]) / 10).toFixed(1));
  } else if (mode === "4") {
    decode.Work_mode = "Weight";

    decode.Weight = ((bytes[7] << 24) >> 16) | bytes[8];
  } else if (mode === "5") {
    decode.Work_mode = "Count";

    decode.Count = (bytes[7] << 24) | (bytes[8] << 16) | (bytes[9] << 8) | bytes[10];
  } else if (mode === "31") {
    decode.Work_mode = "ALARM";

    decode.BatV = ((bytes[0] << 8) | bytes[1]) / 1000;

    decode.TempC1 = parseFloat(((((bytes[2] << 24) >> 16) | bytes[3]) / 10).toFixed(2));

    decode.TempC1MIN = (bytes[4] << 24) >> 24;

    decode.TempC1MAX = (bytes[5] << 24) >> 24;

    decode.SHTEMPMIN = (bytes[7] << 24) >> 24;

    decode.SHTEMPMAX = (bytes[8] << 24) >> 24;

    // decode.SHTHUMMIN = bytes[9];

    // decode.SHTHUMMAX = bytes[10];
  }

  if (bytes.length === 11 || bytes.length === 12) {
    return decode;
  }
}

const payload_raw = payload.find((x) => x.variable === "payload_raw" || x.variable === "payload" || x.variable === "data");

if (payload_raw) {
  try {
    // Convert the data from Hex to Javascript Buffer.
    const buffer = Buffer.from(payload_raw.value, "hex");
    const serie = new Date().getTime();
    const payload_aux = Decoder(buffer); 
    payload = payload.concat(toTagoFormat(payload_aux).map((x) => ({ ...x, serie })));
  } catch (e) {
    // Print the error to the Live Inspector.
    console.error(e);
    // Return the variable parse_error for debugging.
    payload = [{ variable: "parse_error", value: e.message }];
  }
}