RAK - 2171 Wisnode Trackit

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/* eslint-disable no-plusplus */ /* eslint-disable no-redeclare */ /* eslint-disable vars-on-top */ /* eslint-disable no-var */ /* eslint-disable default-case */ /* eslint-disable prefer-destructuring */ function ToTagoFormat(object_item, serie, prefix = "") { const result = []; for (const key in object_item) { if (typeof object_item[key] === "object") { result.push({ variable: (object_item[key].MessageType || `${prefix}${key}`).toLowerCase(), value: `${object_item[key].lat}, ${object_item[key].lng}`, serie: object_item[key].serie || serie, metadata: object_item[key].metadata, unit: object_item[key].unit, location: { lat: Number(object_item[key].lat), lng: Number(object_item[key].lng) }, }); } else { result.push({ variable: `${prefix}${key}`.toLowerCase(), value: object_item[key], serie, }); } } return result; } function Decoder(bytes) { const decoded = {}; // adjust time zone, here Asia/Manila = +8H const my_time_zone = 8 * 60 * 60; decoded.num = bytes[1]; decoded.app_id = (bytes[2] << 24) | (bytes[3] << 16) | (bytes[4] << 8) | bytes[5]; decoded.dev_id = (bytes[6] << 24) | (bytes[7] << 16) | (bytes[8] << 8) | bytes[9]; switch (bytes[0]) { case 0xca: // No Location fix decoded.acc = 0; decoded.fix = 0; decoded.batt = bytes[10]; decoded.time = (bytes[11] << 24) | (bytes[12] << 16) | (bytes[13] << 8) | bytes[14]; // adjust time zone decoded.time += my_time_zone; var dev_date = new Date(decoded.time * 1000); decoded.time_stamp = `${dev_date.getHours()}:${dev_date.getMinutes()}`; decoded.date_stamp = `${dev_date.getDate()}.${dev_date.getMonth() + 1}.${dev_date.getFullYear()}`; decoded.time = String((bytes[11] << 24) | (bytes[12] << 16) | (bytes[13] << 8) | bytes[14]); decoded.stat = bytes[15] & 0x03; decoded.gps = bytes[15] & 0x0c; break; case 0xcb: // Location fix decoded.fix = 1; decoded.batt = bytes[20]; decoded.time = (bytes[21] << 24) | (bytes[22] << 16) | (bytes[23] << 8) | bytes[24]; // adjust time zone decoded.time += my_time_zone; var dev_date = new Date(decoded.time * 1000); decoded.time_stamp = `${dev_date.getHours()}:${dev_date.getMinutes()}`; decoded.date_stamp = `${dev_date.getDate()}.${dev_date.getMonth() + 1}.${dev_date.getFullYear()}`; decoded.time = String((bytes[21] << 24) | (bytes[22] << 16) | (bytes[23] << 8) | bytes[24]); decoded.stat = bytes[25] & 0x03; decoded.gps = bytes[25] & 0x0c; decoded.location = { lat: (((bytes[14] << 24) | (bytes[15] << 16) | (bytes[16] << 8) | bytes[17]) * 0.000001).toFixed(6), lng: (((bytes[10] << 24) | (bytes[11] << 16) | (bytes[12] << 8) | bytes[13]) * 0.000001).toFixed(6), }; decoded.acc = bytes[18]; decoded.gps_start = bytes[19]; break; case 0xcc: // SOS decoded.sos = 1; decoded.location = { lat: (((bytes[14] << 24) | (bytes[15] << 16) | (bytes[16] << 8) | bytes[17]) * 0.000001).toFixed(6), lng: (((bytes[10] << 24) | (bytes[11] << 16) | (bytes[12] << 8) | bytes[13]) * 0.000001).toFixed(6), }; if (bytes.length > 18) { let i; for (i = 18; i < 28; i++) { decoded.name += bytes[i].toString(); } for (i = 28; i < 40; i++) { decoded.country += bytes[i].toString(); } for (i = 39; i < 50; i++) { decoded.phone += bytes[i].toString(); } } break; case 0xcd: decoded.sos = 0; break; case 0xce: decoded.alarm = 0x01; decoded.alarm_lvl = bytes[10]; break; } return decoded; } // let payload = [{ variable: "payload", value: "cb0e000000b9000000ce00d740e60289738b3b043762e27c6409" }]; 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 = ToTagoFormat(Decoder(buffer)); payload = payload.concat(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 }]; } }