113 lines
2.5 KiB
JavaScript
113 lines
2.5 KiB
JavaScript
/**
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* File: app/radio.js
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* Author: Gerrit Linnemann
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*
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* Where the magic happens.
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*/
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// load the things we need
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var spawn = require('child_process').spawn;
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var exec = require('child_process').exec;
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var fs = require("fs");
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var http = require('http');
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var wget = require('wget');
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var grep = require('simple-grep');
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var App = null;
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var Log = null
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var Helper = null;
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var Conf = null;
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var volume = '40';
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exports.init = function(Express, Configuration) {
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App = Express;
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Conf = Configuration;
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Log = App.get('Log');
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Helper = App.get('Helper');
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Log.debug('Radio: ' + exports.countChannels() + ' channels configured');
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Helper.each(Conf.channels, function(channel, isLast) {
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//Log.inspect('Channel', channel);
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Log.log('Radio: Found channel ' + channel.title);
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});
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// set default volume level
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Helper.shspawn('amixer scontrols');
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Helper.shspawn('amixer sset \'PCM\' '+volume+'%');
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return this;
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}
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exports.countChannels = function() {
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return Conf.channels.length;
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}
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exports.getChannels = function() {
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return Conf.channels;
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}
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exports.getChannel = function(idx) {
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if(Helper.isDefinedAndNotNull(Conf.channels[idx])) {
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return Conf.channels[idx];
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} else {
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return null;
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}
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}
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exports.play = function(idx) {
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var channel = Conf.channels[idx];
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if(channel !== undefined) {
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var stream2play = channel.stream;
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var m3u = '/tmp/kitchenradio.m3u';
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try {
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fs.unlinkSync(m3u);
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} catch(e) {
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Log.error('Radio: Error deleting "' + m3u + '".' + e);
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}
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var download = wget.download(channel.stream, m3u);
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download.on('end', function(output) {
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Log.inspect('Radio: Download completed', output);
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Helper.shspawn(App.get('tools_root')+'action.sh stop');
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Helper.shspawn(App.get('tools_root')+'action.sh play');
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});
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download.on('error', function(err) {
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Log.error('Radio: Error downloading playlist. ' + err);
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});
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} else {
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Log.error('Radio: No channel defined!');
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}
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}
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exports.stop = function() {
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Log.log('Radio: stop playing');
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Helper.shspawn(App.get('tools_root')+'action.sh stop');
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}
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exports.volumeUp = function() {
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exports.volume(5)
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}
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exports.volumeDown = function() {
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exports.volume(-5)
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}
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exports.volume = function(step) {
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Log.log('Radio: volume ' + (step>0 ? 'up' : 'down'));
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if(step != 0) {
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volume = volume + step;
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if(volume > 100) { volume = 100; }
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if(volume < 0) { volume = 0; }
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Helper.shspawn('amixer sset \'PCM\' '+volume+'%');
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}
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} |