Reduce cyclomatic complexity
MillenniumEarl
parent
ef7308e298
commit
ee34665b3a
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@ -133,57 +133,19 @@ module.exports.getF95Token = async function() {
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*/
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module.exports.fetchPlatformData = async function() {
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// Check if the data are cached
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if(existsSync(shared.cachePath)) {
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const data = readFileSync(shared.cachePath);
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const json = JSON.parse(data);
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shared.engines = json.engines;
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shared.statuses = json.statuses;
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shared.tags = json.tags;
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shared.others = json.others;
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return;
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if(!_readCache(shared.cachePath)) {
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// Load the HTML
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const html = await exports.fetchHTML(f95url.F95_LATEST_UPDATES);
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// Parse data
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const data = _parseLatestPlatformHTML(html);
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// Assign data
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_assignLatestPlatformData(data);
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// Cache data
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_saveCache(shared.cachePath);
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}
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// Load the HTML
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const html = await exports.fetchHTML(f95url.F95_LATEST_UPDATES);
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const $ = cheerio.load(html);
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// Clean the JSON string
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const unparsedText = $(f95selector.LU_TAGS_SCRIPT).html().trim();
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const startIndex = unparsedText.indexOf("{");
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const endIndex = unparsedText.lastIndexOf("}");
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const parsedText = unparsedText.substring(startIndex, endIndex + 1);
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const data = JSON.parse(parsedText);
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// Extract and parse the data
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const prefixes = data.prefixes.games.map(e => {
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return {
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element: e.name,
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data: e.prefixes
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};
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});
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for(const p of prefixes) {
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// Prepare the dict
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const dict = {};
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for (const e of p.data) dict[parseInt(e.id)] = e.name.replace("'", "'");
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if(p.element === "Engine") shared.engines = dict;
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else if (p.element === "Status") shared.statuses = dict;
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else if (p.element === "Other") shared.others = dict;
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}
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// Parse the tags
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shared.tags = data.tags;
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// Cache data
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const saveDict = {
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engines: shared.engines,
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statuses: shared.statuses,
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tags: shared.tags,
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others: shared.others,
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};
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const json = JSON.stringify(saveDict);
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writeFileSync(shared.cachePath, json);
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};
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//#region Utility methods
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@ -242,24 +204,6 @@ module.exports.isStringAValidURL = function (url) {
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else return false;
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};
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/**
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* @private
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* Check with Axios if a URL exists.
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* @param {String} url
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*/
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async function _axiosUrlExists(url) {
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// Local variables
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let valid = false;
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try {
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const response = await axios.head(url);
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valid = response && !/4\d\d/.test(response.status);
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} catch (error) {
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if (error.code === "ENOTFOUND") valid = false;
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else throw error;
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}
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return valid;
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}
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/**
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* @protected
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* Check if a particular URL is valid and reachable on the web.
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@ -295,4 +239,114 @@ module.exports.getUrlRedirect = async function (url) {
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const response = await axios.head(url);
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return response.config.url;
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};
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//#endregion Utility methods
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//#endregion Utility methods
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//#region Private methods
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/**
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* @private
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* Check with Axios if a URL exists.
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* @param {String} url
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*/
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async function _axiosUrlExists(url) {
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// Local variables
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let valid = false;
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try {
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const response = await axios.head(url);
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valid = response && !/4\d\d/.test(response.status);
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} catch (error) {
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if (error.code === "ENOTFOUND") valid = false;
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else throw error;
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}
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return valid;
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}
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/**
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* @private
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* Read the platform cache (if available)
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* @param {String} path Path to cache
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*/
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function _readCache(path) {
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// Local variables
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let returnValue = false;
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if (existsSync(path)) {
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const data = readFileSync(path);
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const json = JSON.parse(data);
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shared.engines = json.engines;
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shared.statuses = json.statuses;
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shared.tags = json.tags;
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shared.others = json.others;
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returnValue = true;
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}
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return returnValue;
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}
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/**
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* @private
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* Save the current platform variables to disk.
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* @param {String} path Path to cache
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*/
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function _saveCache(path) {
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const saveDict = {
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engines: shared.engines,
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statuses: shared.statuses,
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tags: shared.tags,
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others: shared.others,
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};
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const json = JSON.stringify(saveDict);
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writeFileSync(path, json);
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}
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/**
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* @private
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* Given the HTML code of the response from the F95Zone,
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* parse it and return the result.
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* @param {String} html
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* @returns {Object.<string, object>} Parsed data
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*/
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function _parseLatestPlatformHTML(html) {
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const $ = cheerio.load(html);
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// Clean the JSON string
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const unparsedText = $(f95selector.LU_TAGS_SCRIPT).html().trim();
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const startIndex = unparsedText.indexOf("{");
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const endIndex = unparsedText.lastIndexOf("}");
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const parsedText = unparsedText.substring(startIndex, endIndex + 1);
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return JSON.parse(parsedText);
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}
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/**
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* @private
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* Assign to the local variables the values from the F95Zone.
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* @param {Object.<string, object>} data
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*/
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function _assignLatestPlatformData(data) {
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// Local variables
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const propertiesMap = {
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"Engine": shared.engines,
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"Status": shared.statuses,
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"Other": shared.others,
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};
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// Extract and parse the data
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const prefixes = data.prefixes.games.map(e => {
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return {
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element: e.name,
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data: e.prefixes
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};
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});
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// Parse and assign the values that are NOT tags
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for (const p of prefixes) {
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// Prepare the dict
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const dict = {};
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for (const e of p.data) dict[parseInt(e.id)] = e.name.replace("'", "'");
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// Save the property
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propertiesMap[p] = dict;
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}
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// Parse the tags
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shared.tags = data.tags;
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}
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//#endregion
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