index.js.simple

'use strict';

var libQ = require('kew');
var fs = require('fs-extra');
var config = new (require('v-conf'))();
var exec = require('child_process').exec;
var execSync = require('child_process').execSync;

module.exports = snapserver;
function snapserver(context) {
	var self = this;

	this.context = context;
	this.commandRouter = this.context.coreCommand;
	this.logger = this.context.logger;
	this.configManager = this.context.configManager;

}

snapserver.prototype.onVolumioStart = function()
{
	var self = this;
	var configFile=this.commandRouter.pluginManager.getConfigurationFile(this.context,'config.json');
	this.config = new (require('v-conf'))();
	this.config.loadFile(configFile);
    return libQ.resolve();
}

snapserver.prototype.onStart = function() {
    var self = this;
	var defer=libQ.defer();

	if(self.config.get('debug_logging'))
		console.log('[SnapServer] config: ' + JSON.stringify(self.config));
	
	self.restartService(true)
	.fail(function(e)
	{
		self.commandRouter.pushToastMessage('error', "Startup failed", "Could not start the SnapServer plugin in a fashionable manner.");
		self.logger.error("Could not start the SnapServer plugin in a fashionable manner. Error: " + e);
		defer.reject(new error(e));
	});
	defer.resolve();
    return defer.promise;
};

snapserver.prototype.onStop = function() {
    var self = this;
    var defer=libQ.defer();

    self.stopService()
	.fail(function(e)
	{
		defer.reject(new error());
	});

    return libQ.resolve();
};

snapserver.prototype.onRestart = function() {
    var self = this;
    // Optional, use if you need it
};


// Configuration Methods -----------------------------------------------------------------------------

snapserver.prototype.getUIConfig = function() {
    var defer = libQ.defer();
    var self = this;
	if(self.config.get('debug_logging'))
		console.log('[SnapServer] config: ' + JSON.stringify(self.config));
		
    var lang_code = this.commandRouter.sharedVars.get('language_code');

    self.commandRouter.i18nJson(__dirname+'/i18n/strings_'+lang_code+'.json',
        __dirname+'/i18n/strings_en.json',
        __dirname + '/UIConfig.json')
        .then(function(uiconf)
        {
			// TODO: replace localhost with ip address of Volumio instance
			if(self.config.get('debug_logging'))
				self.logger.info("Nothing to do yet...");
            defer.resolve(uiconf);
        })
        .fail(function(err)
        {
			console.log('An error occurred: ' + err);
            defer.reject(new Error());
        });

    return defer.promise;
};

snapserver.prototype.getConfigurationFiles = function() {
	return ['config.json'];
}

snapserver.prototype.setUIConfig = function(data) {
	var self = this;
	//Perform your installation tasks here
};

snapserver.prototype.getConf = function(varName) {
	var self = this;
	//Perform your installation tasks here
};

snapserver.prototype.setConf = function(varName, varValue) {
	var self = this;
	//Perform your installation tasks here
};

// Service Control -----------------------------------------------------------------------------------

snapserver.prototype.restartService = function (boot)
{
	var self = this;
	var defer=libQ.defer();

	var command = "/usr/bin/sudo /bin/systemctl restart snapserver";		
	if(!boot)
	{
		if(self.config.get('enable_debug_logging'))
			self.logger.info('Reloading daemon, for changes to take effect');
		command = "/usr/bin/sudo /bin/systemctl daemon-reload && /usr/bin/sudo /bin/systemctl restart snapserver";
	}
	
	exec(command, {uid:1000,gid:1000}, function (error, stdout, stderr) {
		if (error !== null) {
			self.commandRouter.pushConsoleMessage('The following error occurred while starting SnapServer: ' + error);
			self.commandRouter.pushToastMessage('error', "Restart failed", "Restarting SnapServer failed with error: " + error);
			defer.reject();
		}
		else {
			self.commandRouter.pushConsoleMessage('SnapServer started');
			if(boot == false)
				self.commandRouter.pushToastMessage('success', "Restarted SnapServer", "Restarted SnapServer for the changes to take effect.");
			
			defer.resolve();
		}
	});

	return defer.promise;
};

snapserver.prototype.stopService = function ()
{
	var self = this;
	var defer=libQ.defer();

	var command = "/usr/bin/sudo /bin/systemctl stop snapserver";
	exec(command, {uid:1000,gid:1000}, function (error, stdout, stderr) {
		if (error !== null) {
			self.commandRouter.pushConsoleMessage('The following error occurred while stopping SnapServer: ' + error);
			self.commandRouter.pushToastMessage('error', "Stopping service failed", "Stopping SnapServer failed with error: " + error);
			defer.reject();
		}
		else {
			self.commandRouter.pushConsoleMessage('SnapServer stopped');
			self.commandRouter.pushToastMessage('success', "Stopping", "Stopped SnapServer.");
			defer.resolve();
		}
	});

	return defer.promise;
};