SkirdaElectronLauncher/app/assets/js/configmanager.js

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const fs = require('fs')
const mkpath = require('mkdirp')
const os = require('os')
const path = require('path')
const uuidV4 = require('uuid/v4')
class ConfigManager {
constructor(path){
this.path = path
this.config = null
this.load()
}
/* Private functions to resolve default settings based on system specs. */
static _resolveMaxRAM(){
const mem = os.totalmem()
return mem >= 8000000000 ? '4G' : (mem >= 6000000000 ? '3G' : '2G')
}
/**
* Generates a default configuration object and saves it.
*
* @param {Boolean} save - optional. If true, the default config will be saved after being generated.
*/
_generateDefault(save = true){
this.config = {
settings: {
java: {
minRAM: '2G',
maxRAM: ConfigManager._resolveMaxRAM(),
executable: 'C:\\Program Files\\Java\\jdk1.8.0_152\\bin\\javaw.exe', //TODO Resolve
jvmOptions: [
'-XX:+UseConcMarkSweepGC',
'-XX:+CMSIncrementalMode',
'-XX:-UseAdaptiveSizePolicy',
'-Xmn128M'
],
},
game: {
resWidth: 1280,
resHeight: 720,
fullscreen: false,
autoConnect: true
},
launcher: {
}
},
clientToken: uuidV4(),
selectedServer: null,
selectedAccount: null,
authenticationDatabase: [],
discord: {
clientID: 385581240906022916
}
}
if(save){
this.save()
}
}
/**
* Load the launcher configuration into memory. If the specified file does
* not exist, a default configuration will be generated and saved.
*/
load(){
if(!fs.existsSync(this.path)){
mkpath.sync(path.join(this.path, '..'))
this._generateDefault()
} else {
this.config = JSON.parse(fs.readFileSync(this.path, 'UTF-8'))
}
}
/**
* Save the launcher configuration to the specified file.
*/
save(){
fs.writeFileSync(this.path, JSON.stringify(this.config, null, 4), 'UTF-8')
}
/**
* Retrieve the launcher's Client Token.
*/
getClientToken(){
return this.config.clientToken
}
/**
* Retrieve the selected server configuration value.
*/
getSelectedServer(){
return this.config.selectedServer
}
/**
* Set the selected server configuration value.
*
* @param {String} serverID - the id of the new selected server.
*/
setSelectedServer(serverID){
this.config.selectedServer = serverID
this.save()
}
/**
* Retrieve the launcher's Discord Client ID.
*/
getDiscordClientID(){
return this.config.discord.clientID
}
/**
* Retrieve the minimum amount of memory for JVM initialization.
*/
getMinRAM(){
return this.config.settings.java.minRAM
}
/**
* Retrieve the maximum amount of memory for JVM initialization.
*/
getMaxRAM(){
return this.config.settings.java.maxRAM
}
/**
* Retrieve the path of the java executable.
*/
getJavaExecutable(){
return this.config.settings.java.executable
}
/**
* Retrieve the additional arguments for JVM initialization. Required arguments,
* such as memory allocation, will be dynamically resolved.
*/
getJVMOptions(){
return this.config.settings.java.jvmOptions
}
/**
* Retrieve the width of the game window.
*/
getGameWidth(){
return this.config.settings.game.resWidth
}
/**
* Retrieve the height of the game window.
*/
getGameHeight(){
return this.config.settings.game.resHeight
}
/**
* Check if the game should be launched in fullscreen mode.
*/
isFullscreen(){
return this.config.settings.game.fullscreen
}
/**
* Check if auto connect is enabled.
*/
isAutoConnect(){
return this.config.settings.game.autoConnect
}
}
module.exports = ConfigManager