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100 lines
2.6 KiB
JavaScript
100 lines
2.6 KiB
JavaScript
6 years ago
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/*jshint esversion: 6 */
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var Store = require("../storage/file");
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var Logger = module.exports;
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/* Every line in the log should contain:
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* timestamp
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* public key of initiator
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* the action
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* the event's tag
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*/
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var messageTemplate = function (type, time, tag, info) {
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return JSON.stringify([type.toUpperCase(), time, tag, info]);
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};
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var write = function (ctx, content) {
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ctx.store.log(ctx.channelName, content);
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};
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// various degrees of logging
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const logLevels = ['silly', 'debug', 'verbose', 'feedback', 'info', 'warn', 'error'];
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var handlers = {
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silly: function (ctx, time, tag, info) {
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console.log('[SILLY]', time, tag, info);
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},
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debug: function (ctx, time, tag, info) {
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console.log('[DEBUG]', time, tag, info);
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},
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verbose: function (ctx, time, tag, info) {
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console.log('[VERBOSE]', time, tag, info);
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},
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feedback: function (ctx, time, tag, info) {
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console.log('[FEEDBACK]', time, tag, info);
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},
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info: function (ctx, time, tag, info) {
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console.info('[INFO]', time, tag, info);
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},
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warn: function (ctx, time, tag, info) {
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console.warn('[WARN]', time, tag, info);
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},
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error: function (ctx, time, tag, info) {
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console.error('[ERROR]', time, tag, info);
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}
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};
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var createLogType = function (ctx, type) {
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return function (tag, info) {
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var time = new Date().toISOString();
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var content;
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try {
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content = messageTemplate(type, time, tag, info);
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} catch (e) {
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return;
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}
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if (ctx.logToStdout && typeof(handlers[type]) === 'function') {
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handlers[type](ctx, time, tag, info);
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}
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write(ctx, content);
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};
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};
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// Log.verbose('THING', x);
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Logger.create = function (config, cb) {
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if (!config.logPath) {
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// XXX don't crash, print that you won't log to file
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throw new Error("Logger: Expected filePath");
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}
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/* config: {
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filePath: '???',
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logLevel: 'silly',
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} */
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var date = new Date();
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var launchTime = ('' + date.getUTCFullYear()).slice(-2) + date.toISOString();
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Store.create({
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filePath: config.logPath,
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}, function (store) {
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var ctx = {
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store: store,
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channelName: launchTime,
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logFeedback: Boolean(config.logFeedback),
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// TODO respect configured log settings
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logLevel: logLevels.indexOf(config.logLevel), // 0 for silly, 1 for debug
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};
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var log = {};
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logLevels.forEach(function (type) {
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log[type] = createLogType(ctx, type);
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});
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cb(Object.freeze(log));
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});
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};
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