LocalCDN-Firefox-Chrome-Brave/pages/statistics/statistics.js

251 lines
7.5 KiB
JavaScript

/**
* Statistic
* Belongs to LocalCDN (since 2020-02-26)
*
* @author nobody
* @since 2020-02-26
*
* @license MPL 2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/.
*/
'use strict';
/**
* Statistic
*/
var statistics = {};
/**
* Private Methods
*/
statistics._onDocumentLoaded = function () {
helpers.insertI18nContentIntoDocument(document);
helpers.insertI18nTitlesIntoDocument(document);
// Default view is 'today'
statistics._dateRange = [new Date().toISOString().slice(0, 10)];
document.getElementById('date-range').value = statistics._dateUnit;
statistics._registerListener();
statistics._getStatistics().then(statistics._renderContents);
};
statistics._renderContents = function () {
statistics._filterAndSortData();
statistics._determineInjections();
statistics._clearTables();
statistics._determineInjections();
statistics._generateTable(statistics._dataSortedCDNs, 'cdns');
statistics._generateTable(statistics._dataSortedFrameworks, 'frameworks');
};
statistics._generateTable = function (data, type) {
let arr = Object.values(data);
if (arr.length === 0) {
arr = [['no data', '-']];
}
for (const value of arr) {
let row, keyColumn, valueColumn;
row = document.createElement('tr');
keyColumn = document.createElement('td');
keyColumn.appendChild(statistics._displayNameOfFramework(value[0], type));
row.appendChild(keyColumn);
valueColumn = document.createElement('td');
valueColumn.appendChild(document.createTextNode(value[1]));
row.appendChild(valueColumn);
document.getElementById('tbody-' + type).appendChild(row);
}
};
statistics._filterAndSortData = function () {
let tmpCDNs, tmpFrameworks;
tmpCDNs = {};
tmpFrameworks = {};
// Purge
statistics._dataSortedCDNs = {};
statistics._dataSortedFrameworks = {};
statistics._dateRange.forEach(function (entry) {
if (entry in statistics._data) {
statistics._mergeObjects(statistics._data[entry]['cdns'], tmpCDNs);
statistics._mergeObjects(statistics._data[entry]['frameworks'], tmpFrameworks);
}
});
statistics._dataSortedCDNs = Object.entries(tmpCDNs).sort((a, b) => b[1] - a[1]);
statistics._dataSortedFrameworks = Object.entries(tmpFrameworks).sort((a, b) => b[1] - a[1]);
};
statistics._mergeObjects = function (obj, arr) {
for (let [key, value] of Object.entries(obj)) {
// If CDN/Framework exists, add it, otherwise create new one
if (arr[key]) {
arr[key] += value;
} else {
arr[key] = value;
}
}
};
statistics._setDateRange = function () {
let today, from, days, type;
today = new Date();
from = new Date();
type = statistics._dateUnit;
// Purge
statistics._dateRange = [];
if (type === 'week') {
days = 7;
} else if (type === 'month') {
days = 30;
} else if (type === 'year') {
days = 365;
} else {
statistics._dateRange = [new Date().toISOString().slice(0, 10)];
}
if (days > 1) {
for (let i = 0; i < days; i++) {
// NOTE: setDate/getDate is buggy over day/month/year boundaries
let diff = 24 * 3600000 * i;
let day = from.setTime(today.getTime() - diff);
statistics._dateRange.push(new Date(day).toISOString().slice(0, 10));
}
}
statistics._renderContents();
};
statistics._determineInjections = function () {
// NOTE: Differences between CDNs and frameworks possible.
// CDN can be contacted without loading a framework.
let sum, days, avg;
sum = 0;
days = 0;
avg = 0;
statistics._dataOverview = [];
statistics._dateRange.forEach(function (entry) {
if (entry in statistics._data) {
for (const value of Object.values(statistics._data[entry]['frameworks'])) {
sum += parseFloat(value);
}
days++;
}
});
avg = sum / days > 0 ? sum / days : 0;
avg = Math.round((avg + Number.EPSILON) * 100) / 100;
document.getElementById('avg-quantity').textContent = isNaN(avg) ? '-' : helpers.formatNumber(avg);
document.getElementById('quantity-injected-frameworks').textContent = isNaN(sum) ? '-' : sum;
};
statistics._getStatistics = function () {
return new Promise((resolve) => {
chrome.storage.local.get([Setting.INTERNAL_STATISTICS_DATA], function (items) {
statistics._data = items.internalStatisticsData;
resolve();
});
});
};
statistics._clearTables = function () {
const tbody = document.querySelectorAll('tbody');
tbody.forEach((table) => {
while (table.hasChildNodes()) {
table.removeChild(table.firstChild);
}
});
};
statistics._displayNameOfFramework = function (str, type) {
// Is used in generateTable(), but should only be used for frameworks
if (type === 'frameworks' && str !== 'no data') {
let filename, line, lbName, lbVersion, version;
// Create elements
line = document.createElement('p');
lbName = document.createElement('span');
lbVersion = document.createElement('span');
filename = helpers.extractFilenameFromPath(str);
filename = targets.determineResourceName(filename);
if (filename === 'Unknown') {
filename = targets.determineBundle(str);
if (filename === '' && str.startsWith('resources/fontawesome/')) {
filename = 'Font Awesome (Fonts)'
}
}
version = str.match(Resource.VERSION_EXPRESSION);
if (version !== null && version.length > 0) {
version = version === 'latest' ? version : 'v' + version;
} else {
version = '';
}
lbName.appendChild(document.createTextNode(filename));
lbVersion.appendChild(document.createTextNode(version));
lbVersion.classList.add('version');
line.appendChild(lbName);
line.appendChild(lbVersion);
return line;
}
// If type is CDN
return document.createTextNode(str);
};
statistics._handlerDateRange = function ({ target }) {
let type = target.value;
if (type === 'day' || type === 'week' || type === 'month' || type === 'year') {
statistics._dateUnit = type;
} else if (type === 'delete') {
statistics._deleteStatistic();
}
statistics._getStatistics().then(statistics._setDateRange);
};
statistics._deleteStatistic = function () {
let text = chrome.i18n.getMessage('dialogConfirmDeleteStatistics');
if (confirm(text)) {
chrome.storage.local.set({
[Setting.INTERNAL_STATISTICS_DATA]: {}
});
chrome.runtime.sendMessage({ topic: 'deleteStatistic' });
}
};
statistics._registerListener = function () {
document.getElementById('date-range').addEventListener('change', statistics._handlerDateRange);
document.getElementById('btn-delete').addEventListener('click', function () {
statistics._handlerDateRange({ target: { value: 'delete' } });
});
};
/**
* Initializations
*/
statistics._data = {};
statistics._dataSortedCDNs = {};
statistics._dataSortedFrameworks = {};
statistics._dataOverview = [];
statistics._dateRange = [];
statistics._dateUnit = 'day';
document.addEventListener('DOMContentLoaded', statistics._onDocumentLoaded);