+ message definitions & basic code template usage

definitions.js

@@ -0,0 +1,25 @@
+const D = module.exports;
+
+D.headerBytes = [
+ '5A', 'A5'
+]
+
+D.addresses = {
+ '20': 'ESC',
+ '21': 'BLE',
+ '22': 'BMS',
+ '23': 'Ext-BMS',
+ '00': '?-ESC',
+ '01': '?',
+ '3D': 'APP',
+ '3E': 'APP',
+ '3F': 'APP',
+}
+
+D.commands = {
+ '1': 'Ask read registers',
+ '4': 'Response read registers',
+ '61': 'Read registers, update head',
+ '64': 'Update head display',
+ '65': 'Update head sensors'
+}

index.js

@@ -0,0 +1,105 @@
+const fs = require('fs');
+const clc = require('cli-color');
+const sha1 = require('js-sha1');
+const blue = clc.blueBright;
+const D = require('./definitions');
+
+const INPUT_FILE_LOG = `unlockThenRideV2Full.log`;
+const INPUT_PATH_LOG = `${__dirname}/logfiles/${INPUT_FILE_LOG}`;
+const LOG_HEADER = 'Ready...';
+
+const OUTPUT_FILE_LOG = `resume.log`;
+const OUTPUT_PATH_LOG = `${__dirname}/${OUTPUT_FILE_LOG}`;
+
+console.log(blue('Reading file'), INPUT_PATH_LOG);
+
+const logData = fs.readFileSync(INPUT_PATH_LOG).toString();
+const logLines = logData
+ .split('\n')
+ .map(l => l.replace('\n', '')
+ .replace('\r', '')
+ .trim())
+ .filter(l => l.length && l !== LOG_HEADER)
+ .map(l => l.split(' '));
+
+console.log('Got', logLines.length, 'lines of log');
+
+console.log(logLines[1]);
+
+const LINES_TYPES = {};
+let strLog = '';
+
+logLines.forEach(line => {
+ let sign = sha1(line.join(':'));
+ if (!LINES_TYPES[sign]) {
+ LINES_TYPES[sign] = line;
+ }
+ let msg = messageToString(parseMessage(line));
+ console.log(msg);
+ strLog += msg + '\n';
+});
+
+fs.writeFileSync(OUTPUT_PATH_LOG, strLog);
+
+console.log('Different lines log values types:', Object.keys(LINES_TYPES).length);
+
+function parseMessage(line) {
+
+ const message = {
+ length: null,
+ src: null,
+ dst: null,
+ cmd: null,
+ arg: null,
+ payload: null
+ }
+
+ // check length
+ if (line.length < 7) {
+ console.log(line);
+ throw 'Line error, invalid length';
+ }
+
+ // check header
+ if (line[0] !== D.headerBytes[0] || line[1] !== D.headerBytes[1]) {
+ console.log(line);
+ throw 'Line error, invalid header';
+ }
+
+ // fill message
+ message.length = line[2];
+ message.src = line[3];
+ message.dst = line[4];
+ message.cmd = line[5];
+ message.arg = line[6];
+ // todo payload
+
+ return message;
+}
+
+function messageToString(message) {
+ let str = '';
+
+ // who -> whom?
+ str += `[${D.addresses[message.src]} --> `;
+ str += `${D.addresses[message.dst]}] `;
+
+ // command
+ str += `using cmd ${D.commands[message.cmd] || '-----'} (${message.cmd}) `;
+
+ // argument
+ str += `and arg ${(message.arg < 10 ? ' ' : '') + message.arg} `;
+
+ return str;
+}
+
+function hashCode(str) {
+ var hash = 0, i, chr;
+ if (str.length === 0) return hash;
+ for (i = 0; i < str.length; i++) {
+ chr = str.charCodeAt(i);
+ hash = ((hash << 5) - hash) + chr;
+ hash |= 0; // Convert to 32bit integer
+ }
+ return hash;
+};