Garmin FIT SDK 21.94.00 (#1)

Change-Id: Ia86a53bdd303c198cdbaed94fcd9534fc4b5369e

Co-authored-by: Jenkins <avn.hudson@garmin.com>

Author: pryhoda

LICENSE.txt

@@ -0,0 +1,27 @@
+{
+  "name": "@garmin-fit/sdk",
+  "version": "0.94.0",
+  "description": "FIT Node SDK",
+  "main": "src/index.js",
+  "type": "module",
+  "scripts": {
+    "build": "node .",
+    "test": "node --experimental-vm-modules node_modules/jest/bin/jest.js"
+  },
+  "author": "Garmin International, Inc.",
+  "license": "SEE LICENSE IN LICENSE.txt",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/garmin/fit-javascript-sdk"
+  },
+  "files": [
+    "src/"
+  ],
+  "devDependencies": {
+    "jest": "^28.1.2",
+    "jsdoc": "^3.6.11"
+  },
+  "jest": {
+    "transform": {}
+  }
+}

package.json

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+/////////////////////////////////////////////////////////////////////////////////////////////
+// Copyright 2022 Garmin International, Inc.
+// Licensed under the Flexible and Interoperable Data Transfer (FIT) Protocol License; you
+// may not use this file except in compliance with the Flexible and Interoperable Data
+// Transfer (FIT) Protocol License.
+/////////////////////////////////////////////////////////////////////////////////////////////
+// ****WARNING****  This file is auto-generated!  Do NOT edit this file.
+// Profile Version = 21.94Release
+// Tag = production/akw/21.94.00-0-g0f668193
+/////////////////////////////////////////////////////////////////////////////////////////////
+
+
+class AccumulatedField {
+    #accumulatedValue = 0;
+    #lastValue = 0;
+
+    constructor(value) {
+        this.#accumulatedValue = value;
+        this.#lastValue = value;
+    }
+
+    accumulate(value, bits) {
+        const mask = (1 << bits) - 1;
+
+        this.#accumulatedValue += (value - this.#lastValue) & mask;
+        this.#lastValue = value;
+
+        return this.#accumulatedValue;
+    }
+}
+
+class Accumulator {
+    #messages = {};
+
+    add(mesgNum, fieldNum, value) {
+        if (this.#messages[mesgNum] == null) {
+            this.#messages[mesgNum] = {};
+        }
+
+        this.#messages[mesgNum][fieldNum] = new AccumulatedField(value);
+    }
+
+    accumulate(mesgNum, fieldNum, value, bits) {
+        return this.#messages[mesgNum]?.[fieldNum]?.accumulate(value, bits) ?? value;
+    }
+}
+
+export default Accumulator;

src/accumulator.js

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+/////////////////////////////////////////////////////////////////////////////////////////////
+// Copyright 2022 Garmin International, Inc.
+// Licensed under the Flexible and Interoperable Data Transfer (FIT) Protocol License; you
+// may not use this file except in compliance with the Flexible and Interoperable Data
+// Transfer (FIT) Protocol License.
+/////////////////////////////////////////////////////////////////////////////////////////////
+// ****WARNING****  This file is auto-generated!  Do NOT edit this file.
+// Profile Version = 21.94Release
+// Tag = production/akw/21.94.00-0-g0f668193
+/////////////////////////////////////////////////////////////////////////////////////////////
+
+
+import FIT from "./fit.js";
+
+class BitStream {
+    #array = null;
+    #currentArrayPosition = 0;
+    #bitPerPosition = 0;
+    #currentByte = 0;
+    #currentBit = 0;
+    #bitsAvailable = 0;
+
+    constructor(data, baseType = FIT.BaseType.UINT8) {
+        this.#array = Array.isArray(data) ? data : [data];
+        const baseTypeSize = FIT.BaseTypeDefinitions[baseType].size;
+        this.#bitPerPosition = baseTypeSize * 8;
+        this.reset();
+    }
+
+    get bitsAvailable() {
+        return this.#bitsAvailable;
+    }
+
+    get hasBitsAvailable() {
+        return this.#bitsAvailable > 0;
+    }
+
+    reset() {
+        this.#currentArrayPosition = 0;
+        this.#bitsAvailable = this.#bitPerPosition * this.#array.length;
+        this.#nextByte();
+    }
+
+    readBit() {
+        if (!this.hasBitsAvailable) {
+            this.#throwError();
+        }
+
+        if (this.#currentBit >= this.#bitPerPosition) {
+            this.#nextByte();
+        }
+
+        const bit = this.#currentByte & 0x01;
+        this.#currentByte = this.#currentByte >> 1;
+        this.#currentBit++;
+        this.#bitsAvailable--;
+
+        return bit;
+    }
+
+    readBits(nBitsToRead) {
+        let value = 0n;
+
+        for (let i = 0n; i < nBitsToRead; i++) {
+            value |= BigInt(this.readBit()) << i;
+        }
+
+        return Number(value);
+    }
+
+    #nextByte() {
+        if (this.#currentArrayPosition >= this.#array.length) {
+            this.#throwError();
+        }
+
+        this.#currentByte = this.#array[this.#currentArrayPosition++];
+        this.#currentBit = 0;
+    }
+
+    #throwError(error = "") {
+        throw Error("FIT Runtime Error no bits available.");
+    }
+}
+
+export default BitStream;

src/bit-stream.js

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+/////////////////////////////////////////////////////////////////////////////////////////////
+// Copyright 2022 Garmin International, Inc.
+// Licensed under the Flexible and Interoperable Data Transfer (FIT) Protocol License; you
+// may not use this file except in compliance with the Flexible and Interoperable Data
+// Transfer (FIT) Protocol License.
+/////////////////////////////////////////////////////////////////////////////////////////////
+// ****WARNING****  This file is auto-generated!  Do NOT edit this file.
+// Profile Version = 21.94Release
+// Tag = production/akw/21.94.00-0-g0f668193
+/////////////////////////////////////////////////////////////////////////////////////////////
+
+
+const crcTable = [
+    0x0000, 0xCC01, 0xD801, 0x1400, 0xF001, 0x3C00, 0x2800, 0xE401,
+    0xA001, 0x6C00, 0x7800, 0xB401, 0x5000, 0x9C01, 0x8801, 0x4400
+]
+
+class CrcCalculator {
+    #crc = 0;
+
+    constructor() {
+    }
+
+    get crc() {
+        return this.#crc;
+    }
+
+    #updateCRC(value) {
+        // compute checksum of lower four bits of byte
+        let tmp = crcTable[this.#crc & 0xF];
+        this.#crc = (this.#crc >> 4) & 0x0FFF;
+        this.#crc = this.#crc ^ tmp ^ crcTable[value & 0xF];
+
+        // compute checksum of upper four bits of byte
+        tmp = crcTable[this.#crc & 0xF];
+        this.#crc = (this.#crc >> 4) & 0x0FFF;
+        this.#crc = this.#crc ^ tmp ^ crcTable[(value >> 4) & 0xF];
+
+        return this.#crc;
+    }
+
+    addBytes(buf, start, end) {
+        for (let i = start; i < end; i++) {
+            this.#crc = this.#updateCRC(buf[i]);
+        }
+
+        return this.#crc;
+    }
+
+    static calculateCRC(buf, start, end) {
+        const crcCalculator = new CrcCalculator();
+        return crcCalculator.addBytes(buf, start, end);
+    }
+}
+
+export default CrcCalculator;