server.js

const vsx = require('./vsx')
const hue = require('./hue')
const tv = require('./tv')



//parameter 
let startTime = 20; //21 Uhr
let targetVolume = 51 // 45 db Room
let decreaseVolume = 1 ; // -0,5db
let changeIntervall = 1 * 60 * 1000 // each Minute

let lastManualVolShift = new Date();    //
let restTimeAfterManualShift = 20 * 60 *1000; //20 minutes


//define Event Callbacks
function VSX_CALLBACK(oldState, newState) {

    // subwoofer
   // if(newState.power === true && new Date().getHours() < startTime)
       // hue.turnSub(true)
  //  else if(newState.power === false)
      //  hue.turnSub(false)

    // volume offset after 1s
    if(newState.input){
        let volumeOffset =  vsx.getInputOffset(newState.input) - vsx.getInputOffset(oldState.input);
        let newVolume  = oldState.volume + volumeOffset

        console.log("Input Offseets/Volume: " +volumeOffset + "/"+ newVolume)
        if ( newVolume<0) newVolume = targetVolume
            
        if(volumeOffset && newVolume)
            setTimeout(function(){
                vsx.assureState({
                    volume: newVolume
                })
            },100)
       
    }else if(newState.power)    // change volume at turn on
        vsx.assureState({
            volume: targetVolume + vsx.getInputOffset(oldState.input)
        })

    //save timestmp of vol shift 
    if(newState.volume && Math.abs(newState.volume-oldState.volume)==1)
        lastManualVolShift = new Date();
}
vsx.registerCallback(VSX_CALLBACK);
vsx.start();


// TV
let TV_CALLBACKS = {
    onYoutubeOn: function(){
       vsx.assureState({
           power: true,
           input: 'TV',
           mcacc:3,
       })
      // hue.turnLightsOn("ChillPC")
    },

    onNetflixOn: function(){
        vsx.assureState({
            power: true,
            input: 'TV',
            mcacc:3,
        })
        //hue.turnLightsOn("ChillPC")
    },
}
tv.registerCallbacks(TV_CALLBACKS)
tv.start();

// TV workaround
process.on('uncaughtException', function (err) {
    console.log("TV error");
}); 




// auto volume decrease at evening
setInterval(() => {
    let now = new Date() //make sure your system is set to correct Timezone
    
    if(now.getHours()>=startTime){    // time is reached
        let state = vsx.getState();  
        //console.log("Time " + now.getHours() +":" + now.getMinutes() + "Vol: "+ state.volume)
        //console.log("time since vol" + (new Date() - lastManualVolShift))                             

        // turn sub off routine
        if(now.getHours()==startTime && now.getMinutes()<=changeIntervall)  //first 
          //  hue.turnSub(false);

            // decrease Volume routine
            if(state.volume - vsx.getInputOffset(state.input)>targetVolume    // volume to loud
               && new Date() - lastManualVolShift > restTimeAfterManualShift){ // no rest time
                vsx.assureState({
                    volume: state.volume - decreaseVolume
                })
            }
    }
    
}, changeIntervall);




const cors = require('cors');
const express = require('express')
const app = express()
const port = 81

app.use(cors());
app.options('*', cors());

app.use(express.json());        // new

// HTTP endpoints

app.get('/vsx_vol_dwn', (req, res) => {
    vsx.assureState({
        power: true,
        volume: vsx.getState().volume -10,

    })

    res.send('ok')
})

app.get('/vsx_vol_up', (req, res) => {
    vsx.assureState({
        power: true,
        volume: vsx.getState().volume +10,
    })

    res.send('ok')
})

app.get('/vol_PC', (req, res) => {
    vsx.assureState({
        power: true,
        mcacc: 1,
        input: 'PC'
    })

    res.send('ok')
})

app.get('/sound_bett', (req, res) => {
    vsx.assureState({
        power: true,
        mcacc: 4,
        input: "BT"
    })

    res.redirect("/");      // todo: test
})

app.get('/PC_Display_off', (req, res) => {
        vsx.assureState({
            mcacc: 2,
        })
        let hour = new Date().getHours();
        hue.turnLightsOn(hour<6||hour>20?"err":"Hell")

        hue.turnFan(false)

    res.send('ok')
})
app.get('/PC_Display_on', (req, res) => {
    vsx.assureState({
       mcacc: 1
    })

    let hour = new Date().getHours();
    hue.turnLightsOn(hour>6&&hour<21?"Konzentrieren":"Dark")

    res.send('ok')
})


// Frontend endpoints
app.post('/vsx', function(req, res){
    res.set('Access-Control-Allow-Origin', '*');        //dev

    console.log("POST: "+JSON.stringify(req.body))
    vsx.assureState(req.body)

    setTimeout(()=>res.send(vsx.getControls()),500)     //hacky
  });


app.get('/vsx', function(req, res){
    res.send(vsx.getControls());
  });

  app.get('/', function(req, res){      //vue
    res.sendFile('Frontend/main.html',{root: __dirname })
  });

  app.get('/toggle_fan', (req, res) => {
  hue.toogleFan()

    res.send('ok')
})

app.listen(port, () => {
    console.log(`Example app listening at http://localhost:${port}`)
    })