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Backend optimization

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This commit is contained in:
Gerrit Linnemann 2021-05-04 21:11:48 +02:00
parent 39d27cec24
commit adf7df7952
8 changed files with 151 additions and 55 deletions
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12
kitchenradio/app.js
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@ -9,7 +9,8 @@ var Helper = require('./app/helper')
, Log = require('./app/logging.js')
, Version = require('./package.json')
, Conf = require('./config.json')
, Radio = require('./app/radio');
, Radio = require('./app/radio')
, Control = require('./app/control');
var app = express();
@ -32,6 +33,7 @@ app.set('tools_root', __dirname + '/bin/');
Log.init(app);
app.set('Log', Log);
app.set('Configuration', Conf);
Log.log("Kitchen Radio " + Version.version + " is waking up ...", true);
Log.debug('Kitchen Radio root: ' + app.get('tools_root'));
@ -42,10 +44,16 @@ Log.debug('Kitchen Radio root: ' + app.get('tools_root'));
Helper.init(app);
app.set('Helper', Helper);
/**
* Init Control.
*/
Control.init(app);
app.set('Control', Control);
/**
* Init Radio.
*/
var radioInstance = Radio.init(app, Conf);
var radioInstance = Radio.init(app);
app.set('Radio', radioInstance);
radioInstance.play();

89
kitchenradio/app/control.js Normal file
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@ -0,0 +1,89 @@
/**
* File: app/control.js
* Author: Gerrit Linnemann
*
* Control device.
*/
// load the things we need
var os = require('os')
, Log = require('./logging')
, childProcess = require('child_process');
var App = null;
var Log = null
var Helper = null;
var Conf = null;
const isWin = process.platform === "win32";
const isMac = process.platform === "darwin";
const volumeStep = 10
var volume = isMac ? 10 : 30; // starting value in percent
exports.init = function(Express) {
App = Express;
Conf = App.get('Configuration');
Log = App.get('Log');
Helper = App.get('Helper');
getMacCurrentVolumeInPercent((level) => {
volume = level
})
return this;
}
exports.setValueOnStartup = function() {
if(isWin) {
Log.log('Control: Are you kidding? Windows?');
} else {
setVolumeTo(volume);
}
}
exports.volumeUp = function() {
volume = parseInt((volume + volumeStep))
setVolumeTo(volume)
}
exports.volumeDown = function() {
volume = parseInt((volume - volumeStep))
setVolumeTo(volume)
}
exports.volume = function(newValue) {
setVolumeTo(newValue)
}
function getMacCurrentVolumeInPercent(callback) {
//osascript -e 'get volume settings'
//osascript -e 'set ovol to output volume of (get volume settings)'
const cmd = "osascript -e 'set ovol to output volume of (get volume settings)'"
childProcess.exec(cmd, [], (error, stdout, stderr) => {
if (error) {
Log.error('Control: ' + stderr);
throw error;
}
Log.log('Control: Sound level ' + stdout);
callback(stdout);
});
}
function setVolumeTo(newValue) {
if(volume > 100) { volume = 100; }
if(volume < 0) { volume = 0; }
if(isMac) {
var tick = Helper.translatePercentVolumeValueToMacScala(volume);
Log.log('Control: volume to ' + tick);
Helper.shspawn('osascript -e "set volume '+tick+'"');
} else {
Log.log('Control: volume to ' + newValue);
Helper.shspawn('amixer sset \'PCM\' '+newValue+'%');
}
}

9
kitchenradio/app/helper.js
View File

@ -16,14 +16,11 @@ var os = require('os')
var app = null;
var ConfReader = null;
exports.init = function(express) {
app = express;
ConfReader = app.get('ConfReader');
return this;
}
@ -123,11 +120,15 @@ exports.simpleHash = function(foo) {
return hash;
}
exports.translatePercentVolumeValueToMacScala = function(volumeInPercent) {
return parseInt((volumeInPercent / 10));
}
/* private */
function doValueEqualityCheck(foo, bar) {
var key;
for(key in foo) {
Log.debug( "Compare \"" + foo[key] + "\" with \"" + bar[key] + "\" for key \"" + key + "\"" );
Log.debug( "Helper: Compare \"" + foo[key] + "\" with \"" + bar[key] + "\" for key \"" + key + "\"" );
if(typeof foo[key] === 'object' && typeof bar[key] === 'object') {
var isEquals = doValueEqualityCheck(foo, bar);

70
kitchenradio/app/radio.js
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@ -16,18 +16,21 @@ var grep = require('simple-grep');
var App = null;
var Log = null
var Control = null;
var Log = null;
var Helper = null;
var Conf = null;
var volume = '40';
const isWin = process.platform === "win32";
const isMac = process.platform === "darwin";
exports.init = function(Express, Configuration) {
exports.init = function(Express) {
App = Express;
Conf = Configuration;
Conf = App.get('Configuration');
Log = App.get('Log');
Helper = App.get('Helper');
Control = App.get('Control');
Log.debug('Radio: ' + exports.countChannels() + ' channels configured');
Helper.each(Conf.channels, function(channel, isLast) {
@ -35,9 +38,9 @@ exports.init = function(Express, Configuration) {
Log.log('Radio: Found channel ' + channel.title);
});
// set default volume level
Helper.shspawn('amixer scontrols');
Helper.shspawn('amixer sset \'PCM\' '+volume+'%');
if(!isMac) {
Control.setValueOnStartup();
}
return this;
}
@ -63,24 +66,32 @@ exports.play = function(idx) {
if(channel !== undefined) {
var stream2play = channel.stream;
var m3u = '/tmp/kitchenradio.m3u';
var streamIsMp3 = stream2play.toLowerCase().endsWith('mp3');
try {
fs.unlinkSync(m3u);
} catch(e) {
Log.error('Radio: Error deleting "' + m3u + '".' + e);
}
Helper.shspawn(App.get('tools_root')+'action.sh stop');
var download = wget.download(channel.stream, m3u);
download.on('end', function(output) {
Log.inspect('Radio: Download completed', output);
Helper.shspawn(App.get('tools_root')+'action.sh stop');
// if strem is mp3, write url to m3u file
if(streamIsMp3) {
fs.writeFileSync(m3u, stream2play);
Helper.shspawn(App.get('tools_root')+'action.sh play');
});
} else {
try {
fs.unlinkSync(m3u);
} catch(e) {
Log.error('Radio: Error deleting "' + m3u + '".' + e);
}
download.on('error', function(err) {
Log.error('Radio: Error downloading playlist. ' + err);
});
var download = wget.download(stream2play, m3u);
download.on('end', function(output) {
Log.inspect('Radio: Download completed', output);
Helper.shspawn(App.get('tools_root')+'action.sh play');
});
download.on('error', function(err) {
Log.error('Radio: Error downloading playlist. ' + err);
});
}
} else {
Log.error('Radio: No channel defined!');
}
@ -92,22 +103,9 @@ exports.stop = function() {
}
exports.volumeUp = function() {
exports.volume(5)
Control.volumeUp()
}
exports.volumeDown = function() {
exports.volume(-5)
}
exports.volume = function(step) {
Log.log('Radio: volume ' + (step>0 ? 'up' : 'down'));
if(step != 0) {
volume += step;
if(volume > 100) { volume = 100; }
if(volume < 0) { volume = 0; }
Helper.shspawn('amixer sset \'PCM\' '+volume+'%');
}
Control.volumeDown()
}

18
kitchenradio/config.json
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@ -2,21 +2,21 @@
"channels": [
{
"type": "radiostream",
"title": "SWR3",
"stream": "http://mp3-live.swr3.de/swr3_m.m3u",
"icon": "https://lh4.ggpht.com/TvZh5HdllZOnwlPLAn043r_MMwcOw73vC0esB8g4ytwG4buC57HMjy4VXlwpj7vS5ng=w300"
"title": "NDR2",
"stream": "http://www.ndr.de/resources/metadaten/audio/m3u/ndr2_hh.m3u",
"icon": "https://upload.wikimedia.org/wikipedia/commons/9/9e/NDR_2_Logo.svg"
},
{
"type": "radiostream",
"title": "WDR2",
"stream": "https://wdr-wdr2-ostwestfalenlippe.icecastssl.wdr.de/wdr/wdr2/ostwestfalenlippe/mp3/128/stream.mp3",
"icon": "http://static.radio.de/images/broadcasts/07/47/9771/c300.png"
"title": "WDR4",
"stream": "http://wdr-wdr4-live.icecast.wdr.de/wdr/wdr4/live/mp3/128/stream.mp3",
"icon": "https://upload.wikimedia.org/wikipedia/commons/6/60/WDR_4_logo_2012.svg"
},
{
"type": "radiostream",
"title": "1Live",
"stream": "https://wdr-1live-live.sslcast.addradio.de/wdr/1live/live/mp3/128/stream.mp3",
"icon": "http://static.radio.de/images/broadcasts/4e/0d/1382/1/c175.png"
"title": "WDR5",
"stream": "http://wdr-wdr5-live.icecast.wdr.de/wdr/wdr5/live/mp3/128/stream.mp3",
"icon": "https://upload.wikimedia.org/wikipedia/commons/d/da/WDR5_Logo_2012.svg"
}
],
"logging": {

2
kitchenradio/views/layout.jade
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@ -2,7 +2,7 @@ doctype html
html
head
title= title
link(rel='stylesheet', href='https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css')
link(rel='stylesheet', href='https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css')
link(rel='stylesheet', href='/stylesheets/style.css')
script(src="/javascripts/vendor/jquery.min.js")
script(src="/javascripts/radio.js")