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dataprocessing.js
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dataprocessing.js
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var jsonfile = require('jsonfile');
jsonfile.spaces = 4;
var fs = require('fs');
var pug = require('pug');
var path = require('path');
var dataPath = '../moocdata/';
var logPath = path.join(dataPath, 'logs');
var userFeedbackFile = path.join(dataPath, 'UserFeedback');
var squirreleyePath = path.join(dataPath, 'squirreleye');
var ieyePath = path.join(dataPath, 'ieye');
// check if data folder exists
if (!fs.existsSync(dataPath)) {
fs.mkdirSync(dataPath);
console.log('Using' + dataPath + ' data folder');
}
if (!fs.existsSync(squirreleyePath)) {
console.log('creating ' + squirreleyePath +' data folder');
fs.mkdirSync(squirreleyePath);
}
if (!fs.existsSync(ieyePath)) {
console.log('creating ' + ieyePath +' data folder');
fs.mkdirSync(ieyePath);
}
if (!fs.existsSync(logPath)) {
console.log('creating ' + logPath +' data folder');
fs.mkdirSync(logPath);
}
if (!fs.existsSync(userFeedbackFile)) {
fs.writeFile(userFeedbackFile, '', function(err) {
if (err) {
console.log(err);
}
console.log('Create userFeedbackFile ' + userFeedbackFile + ' success');
});
}
/**
*
* @param {*} widgetType
* @param {*} userID
*/
var createUserFile = function(widgetType, userID) {
var userFile = (widgetType === 'sqeye') ? squirreleyePath : ieyePath;
userFile = path.join(userFile, userID);
if (!fs.existsSync(userFile)) {
fs.writeFile(userFile, '', function(err) {
if (err) {
console.log(err);
}
console.log('Create userfile ' + userFile + ' success');
});
}
};
/**
* Appends the session log to the user file.
* @param {String} widgetType 'sqeye' or 'ieye'
* @param {*} sessionID SessionID for the log
* @param {*} userID User
* @param {object} dataToWrite data to write to file.
*/
var writeFile = function(widgetType, sessionID, userID, dataToWrite) {
var filepath = (widgetType === 'sqeye') ? squirreleyePath : ieyePath;
jsonfile.writeFile(path.join(filepath, userID), dataToWrite, {flag: 'a'}, function(err) {
if (err) {
console.log(err);
}
});
};
/**
* Appends feedback to the feedback file
* @param {*} data Feedback from users on the widget.
*/
var writeFeedback = function(data) {
jsonfile.writeFile(userFeedbackFile, data, {flag: 'a'}, function(err) {
if (err) {
console.log(err);
}
});
};
/**
* Stores the history pages as html
* @param {Map} historyData history session data from ieye.js
* @param {Boolean} store if true, save history to file.
* @param {Function} onFinish call when write finishes, required when store=true.
* @return {String} returns the data string that was parsed.
*/
var parseHistory = function(historyData, store, onFinish) {
if (historyData.size === 0) {
return 'Empty.';
}
var firstEntry = Array.from(historyData.entries())[0][1]; // get first added session (0=key 1=val)
var historyFile = path.join(logPath, (new Date(firstEntry.sessionStartTime)).toDateString() + ' ('+firstEntry.sessionStartTime.replace(/:/g, '.') +').txt');
// use this to render html history to file (raw history is without styling)
// var output = pug.renderFile('views/rawhistory.pug', {historyData: data});
var output = '';
var historyData = JSON.parse(JSON.stringify(historyData));
var bucket = new Map();
var usersPerDateHour = new Map();
var keys = Object.keys(historyData).reverse();
for (var i = 0; i < keys.length; i++) {
var session = historyData[keys[i]];
var date = new Date(session.sessionStartTime);
var h = date.toLocaleDateString() + ', ' + date.getHours() + ':00:00';
if (!bucket.has(h)) {
bucket.set(h, []);
}
bucket.get(h).push(session);
if (!usersPerDateHour.has(h)) {
usersPerDateHour.set(h, new Map());
}
usersPerDateHour.get(h).set(session.userID, '');
}
bucket.forEach((b, k) => {
if (b.length > 0) {
output += k + ',';
output += 'sessions: ' + b.length+ ',';
output += 'users: ' + usersPerDateHour.get(k).size;
output += '\n';
b.forEach((session) => {
var useState = 'n/a';
for (var wi = 0; wi < session.widget.length; wi++) {
var wstate = session.widget[wi];
if (wstate.eventType === 'allow' || wstate.eventType === 'disallow') {
useState = wstate.eventType;
}
}
var sDate = (new Date(session.sessionStartTime));
var h = ('0' + sDate.getHours()).slice(-2);
var m = ('0' + sDate.getMinutes()).slice(-2);
var s = ('0' + sDate.getSeconds()).slice(-2);
output += session.userID + ',';
output += session.sessionID + ',';
output += session.reactionType+ ',';
output += useState+ ',';
output += session.sessionStartTime + ',';
output += session.environment.browser + ' ('+session.environment.browserVersion+')'+ ',';
output += 'mobile: ' + session.environment.mobile+ ',';
output += 'banned: ' + session.banned+ ',';
output += '\n';
});
output += '--------------------------------------------------------------------------------------\n';
}
});
if (store) {
fs.writeFile(historyFile, output, function(err, data) {
if (err) {
return console.log(err);
}
if (typeof onFinish !== 'undefined') {
onFinish();
}
});
}
return output;
};
module.exports.createUserFile = createUserFile;
module.exports.writeFile = writeFile;
module.exports.writeFeedback = writeFeedback;
module.exports.parseHistory = parseHistory;