const path = require('path')
const configPath =  path.join(__dirname, 'config.json');
const config = require(configPath);

const sock = require('./sock.js');
const daemon = require('./daemon.js');

const {
    ipcRenderer
} = require('electron');
const fs = require('fs');

const { locatorToLatLng, distance, bearingDistance, latLngToLocator } = require('qth-locator');


// START INTERVALL COMMAND EXECUTION FOR STATES
setInterval(daemon.getDaemonState, 1000)
setInterval(sock.getTncState, 250)
setInterval(sock.getRxBuffer, 1000)





// UPDATE FFT DEMO 

updateFFT = function(fft) {
    var fft = Array.from({
        length: 2048
    }, () => Math.floor(Math.random() * 10));
    spectrum.addData(fft);
}
setInterval(updateFFT, 250)



// WINDOW LISTENER
window.addEventListener('DOMContentLoaded', () => {
    // LOAD SETTINGS
    document.getElementById("tnc_adress").value = config.tnc_host
    document.getElementById("tnc_port").value = config.tnc_port
    document.getElementById("myCall").value = config.mycall
    document.getElementById("myGrid").value = config.mygrid
    document.getElementById('hamlib_deviceid').value = config.deviceid
    document.getElementById('hamlib_deviceport').value = config.deviceport
    document.getElementById('hamlib_serialspeed').value = config.serialspeed
    document.getElementById('hamlib_ptt').value = config.ptt

    if (config.spectrum == 'waterfall') {
        document.getElementById("waterfall-scatter-switch1").checked = true
        document.getElementById("waterfall-scatter-switch2").checked = false
        document.getElementById("scatter").style.visibility = 'hidden';
        document.getElementById("waterfall").style.visibility = 'visible';
        document.getElementById("waterfall").style.height = '350px';
    } else {

        document.getElementById("waterfall-scatter-switch1").checked = false
        document.getElementById("waterfall-scatter-switch2").checked = true
        document.getElementById("scatter").style.visibility = 'visible';
        document.getElementById("waterfall").style.visibility = 'hidden';
        document.getElementById("waterfall").style.height = '0px';
    }




    
        // Create spectrum object on canvas with ID "waterfall"
        global.spectrum = new Spectrum(
            "waterfall", {
                spectrumPercent: 20
            });
    

    // SETUP OF SCATTER DIAGRAM

    global.data = {
        datasets: [{
            label: 'Scatter Dataset',
            data: [{
                x: 0,
                y: 0
            }],
            backgroundColor: 'rgb(255, 99, 132)'
        }],
    };


    var ctx = document.getElementById('scatter').getContext('2d');
    global.myChart = new Chart(ctx, {
        type: 'scatter',
        data: data,
        options: {
            animation: false,
            legend: {
                display: false
            },

            scales: {
                display: false,
                grid: {
                    display: false
                },
                x: {
                    type: 'linear',
                    position: 'bottom',
                    display: false
                },
                y: {
                    display: false
                }

            }
        }
    });

    // on click waterfall scatter toggle view
    // waterfall
    document.getElementById("waterfall-scatter-switch1").addEventListener("click", () => {
        document.getElementById("scatter").style.visibility = 'hidden';
        document.getElementById("waterfall").style.visibility = 'visible';
        document.getElementById("waterfall").style.height = '350px';
        config.spectrum = 'waterfall'
        fs.writeFileSync(configPath, JSON.stringify(config, null, 2));
    });
    // scatter
    document.getElementById("waterfall-scatter-switch2").addEventListener("click", () => {
        document.getElementById("scatter").style.visibility = 'visible';
        document.getElementById("waterfall").style.visibility = 'hidden';
        document.getElementById("waterfall").style.height = '0px';
        config.spectrum = 'scatter'
        fs.writeFileSync(configPath, JSON.stringify(config, null, 2));
    });


    // on change port and host
    document.getElementById("tnc_adress").addEventListener("change", () => {
        console.log(document.getElementById("tnc_adress").value)
        config.tnc_host = document.getElementById("tnc_adress").value
        config.daemon_host = document.getElementById("tnc_adress").value
        fs.writeFileSync(configPath, JSON.stringify(config, null, 2));

    });

    document.getElementById("tnc_port").addEventListener("change", () => {
        config.tnc_port = document.getElementById("tnc_port").value
        config.daemon_port = parseInt(document.getElementById("tnc_port").value) + 1
        fs.writeFileSync(configPath, JSON.stringify(config, null, 2));

    });

    // saveMyCall button clicked 
    document.getElementById("saveMyCall").addEventListener("click", () => {
        callsign = document.getElementById("myCall").value
        config.mycall = callsign
        fs.writeFileSync(configPath, JSON.stringify(config, null, 2));
        sock.saveMyCall(callsign)
    });

    // saveMyGrid button clicked 
    document.getElementById("saveMyGrid").addEventListener("click", () => {
        grid = document.getElementById("myGrid").value
        config.mygrid = grid
        fs.writeFileSync(configPath, JSON.stringify(config, null, 2));
        sock.saveMyGrid(grid)

    });

    // startPing button clicked 
    document.getElementById("sendPing").addEventListener("click", () => {
        var dxcallsign = document.getElementById("dxCall").value
        sock.sendPing(dxcallsign)
    });
    
    // dataModalstartPing button clicked 
    document.getElementById("dataModalSendPing").addEventListener("click", () => {
        var dxcallsign = document.getElementById("dataModalDxCall").value
        sock.sendPing(dxcallsign)
    });

    // sendCQ button clicked 
    document.getElementById("sendCQ").addEventListener("click", () => {
        sock.sendCQ()
    });

    // startTNC button clicked 
    document.getElementById("startTNC").addEventListener("click", () => {
        var rx_audio = document.getElementById("audio_input_selectbox").value
        var tx_audio = document.getElementById("audio_output_selectbox").value
        var deviceid = document.getElementById("hamlib_deviceid").value
        var deviceport = document.getElementById("hamlib_deviceport").value
        var serialspeed = document.getElementById("hamlib_serialspeed").value
        var ptt = document.getElementById("hamlib_ptt").value


        config.deviceid = deviceid
        config.deviceport = deviceport
        config.serialspeed = serialspeed
        config.ptt = ptt
        fs.writeFileSync(configPath, JSON.stringify(config, null, 2));


        daemon.startTNC(rx_audio, tx_audio, deviceid, deviceport, ptt, serialspeed)
        setTimeout(function() {
            sock.saveMyCall(config.mycall);
        }, 5000);
        setTimeout(function() {
            sock.saveMyGrid(config.mygrid);
        }, 6000);
    })

    // stopTNC button clicked 
    document.getElementById("stopTNC").addEventListener("click", () => {
        daemon.stopTNC()
    })

    // openDataModule button clicked 
    document.getElementById("openDataModule").addEventListener("click", () => {
               if(document.getElementById("mySidebar").style.width == "40%"){
     document.getElementById("mySidebar").style.width = "0px";       
    } else {
        document.getElementById("mySidebar").style.width = "40%";
      }
      })
      
      
  // START TRANSMISSION    
        document.getElementById("startTransmission").addEventListener("click", () => {
              
        var fileList = document.getElementById("dataModalFile").files;         
      
        var reader = new FileReader();
        	//reader.readAsBinaryString(fileList[0]);
        	reader.readAsDataURL(fileList[0]);


	    reader.onload = function(e) {
		// binary data

        var data = e.target.result        
        console.log(data)
	                  
        let Data = {
            command: "sendFile",
            dxcallsign: document.getElementById("dataModalDxCall").value,
            mode: document.getElementById("datamode").value,
            frames: document.getElementById("framesperburst").value,
            filetype: fileList[0].type,
            filename: fileList[0].name,
            data: data,
            checksum: '123123123',
        };
        ipcRenderer.send('run-tnc-command', Data);
	    	     
	};
	reader.onerror = function(e) {
		// error occurred
		console.log('Error : ' + e.type);
	};
            
    })
    
       
    
})




ipcRenderer.on('action-update-tnc-state', (event, arg) => {

    // TOE TIME OF EXECUTION --> How many time needs a command to be executed until data arrives
    if (typeof(arg.toe) == 'undefined'){
    var toe = 0
    } else {
     var toe = arg.toe
    }    
    document.getElementById("toe").innerHTML = toe + ' ms'
   
   // DATA STATE
   global.rxBufferLengthTnc = arg.rx_buffer_length 
    

    // SCATTER DIAGRAM PLOTTING
    //global.myChart.destroy();
    
    //console.log(arg.scatter.length)

    var data = arg.scatter
    var newdata = {
        datasets: [{
            label: 'constellation diagram',
            data: data,
            backgroundColor: 'rgb(255, 99, 132)'
        }],
    };
    
    if (typeof(arg.scatter) == 'undefined'){
    var scatterSize = 0
    } else {
     var scatterSize = arg.scatter.length
    }
    if (global.data != newdata && scatterSize > 0){
            try {
                global.myChart.destroy();
            } catch (e) {
                // myChart not yet created
            }
            
            global.data = newdata    
        
    
     
    var ctx = document.getElementById('scatter').getContext('2d');
    global.myChart = new Chart(ctx, {
        type: 'scatter',
        data: global.data,
        options: {
            animation: false,
            legend: {
                display: false,
                tooltips: {
                    enabled: false,
                },
            },
            scales: {
                display: false,
                grid: {
                    display: false
                },
                x: {
                    type: 'linear',
                    position: 'bottom',
                    display: false
                },
                y: {
                    display: false
                }
            }
        },
    });
    }

    // PTT STATE
    if (arg.ptt_state == 'True') {
        document.getElementById("ptt_state").className = "btn btn-danger";
    } else if (arg.ptt_state == 'False') {
        document.getElementById("ptt_state").className = "btn btn-success";
    } else {
        document.getElementById("ptt_state").className = "btn btn-secondary"
    }

    // BUSY STATE
    if (arg.busy_state == 'BUSY') {
        document.getElementById("busy_state").className = "btn btn-danger";
        document.getElementById("startTransmission").disabled = true        
    } else if (arg.busy_state == 'IDLE') {
        document.getElementById("busy_state").className = "btn btn-success";
        document.getElementById("startTransmission").disabled = false
    } else {
        document.getElementById("busy_state").className = "btn btn-secondary"
        document.getElementById("startTransmission").disabled = true
    }

    // ARQ STATE
    if (arg.arq_state == 'DATA') {
        document.getElementById("arq_state").className = "btn btn-warning";
    } else if (arg.arq_state == 'IDLE') {
        document.getElementById("arq_state").className = "btn btn-secondary";
    } else {
        document.getElementById("arq_state").className = "btn btn-secondary"
    }

    // RMS
    document.getElementById("rms_level").setAttribute("aria-valuenow", arg.rms_level)
    document.getElementById("rms_level").setAttribute("style", "width:" + arg.rms_level + "%;")


    // CHANNEL STATE
    if (arg.channel_state == 'RECEIVING_SIGNALLING') {
        document.getElementById("signalling_state").className = "btn btn-success";
        document.getElementById("data_state").className = "btn btn-secondary";

    } else if (arg.channel_state == 'SENDING_SIGNALLING') {
        document.getElementById("signalling_state").className = "btn btn-danger";
        document.getElementById("data_state").className = "btn btn-secondary";

    } else if (arg.channel_state == 'RECEIVING_DATA') {
        document.getElementById("signalling_state").className = "btn btn-secondary";
        document.getElementById("data_state").className = "btn btn-success";

    } else if (arg.channel_state == 'SENDING_DATA') {
        document.getElementById("signalling_state").className = "btn btn-secondary";
        document.getElementById("data_state").className = "btn btn-danger";
    } else {
        document.getElementById("signalling_state").className = "btn btn-secondary"
        document.getElementById("busy_state").className = "btn btn-secondary"

    }

    // SET FREQUENCY
    document.getElementById("frequency").innerHTML = arg.frequency

    // SET MODE
    document.getElementById("mode").innerHTML = arg.mode

    // SET BANDWITH
    document.getElementById("bandwith").innerHTML = arg.bandwith
    
      // SET BYTES PER MINUTE
      if (typeof(arg.arq_bytes_per_minute) == 'undefined'){
    var arq_bytes_per_minute = 0
    } else {
     var arq_bytes_per_minute = arg.arq_bytes_per_minute
    }    
    document.getElementById("bytes_per_min").innerHTML = arq_bytes_per_minute
    
      // SET TOTAL BYTES
      if (typeof(arg.total_bytes) == 'undefined'){
    var total_bytes = 0
    } else {
     var total_bytes = arg.total_bytes
    }    
    document.getElementById("total_bytes").innerHTML = total_bytes
    document.getElementById("transmission_progress").setAttribute("aria-valuenow", arg.arq_transmission_percent)
    document.getElementById("transmission_progress").setAttribute("style", "width:" + arg.arq_transmission_percent + "%;")
    
    
    // UPDATE HEARD STATIONS  
  var tbl = document.getElementById("heardstations");
    document.getElementById("heardstations").innerHTML = ''

    if (typeof(arg.stations) == 'undefined'){
    var heardStationsLength = 0
    } else {
     var heardStationsLength = arg.stations.length
    }
    
    for (i = 0; i < heardStationsLength; i++) {


        // first we update the PING window
        console.log(document.getElementById("dxCall").value)
        if (arg.stations[i]['DXCALLSIGN'] == document.getElementById("dxCall").value) {
            var dxGrid = arg.stations[i]['DXGRID']
            var myGrid = document.getElementById("myGrid").value 
        try {   
            var dist = parseInt(distance(myGrid, dxGrid)) + ' km';
                document.getElementById("pingDistance").innerHTML = dist
                document.getElementById("dataModalPingDistance").innerHTML = dist
        } catch {
            document.getElementById("pingDistance").innerHTML = '---'
            document.getElementById("dataModalPingDistance").innerHTML = '---'
        }            
            document.getElementById("pingDB").innerHTML = arg.stations[i]['SNR']
            document.getElementById("dataModalPingDB").innerHTML = arg.stations[i]['SNR']   
        }


        // now we update the heard stations list
        var row = document.createElement("tr");
        //https://stackoverflow.com/q/51421470 

        //https://stackoverflow.com/a/847196 
        timestampRaw = arg.stations[i]['TIMESTAMP']
        var date = new Date(timestampRaw * 1000);
        var hours = date.getHours();
        var minutes = "0" + date.getMinutes();
        var seconds = "0" + date.getSeconds();
        var datetime = hours + ':' + minutes.substr(-2) + ':' + seconds.substr(-2);

        var timestamp = document.createElement("td");
        var timestampText = document.createElement('span');
        timestampText.innerText = datetime
        timestamp.appendChild(timestampText);

        var dxCall = document.createElement("td");
        var dxCallText = document.createElement('span');
        dxCallText.innerText = arg.stations[i]['DXCALLSIGN']
        dxCall.appendChild(dxCallText);

        var dxGrid = document.createElement("td");
        var dxGridText = document.createElement('span');
        dxGridText.innerText = arg.stations[i]['DXGRID']
        dxGrid.appendChild(dxGridText);

        var gridDistance = document.createElement("td");
        var gridDistanceText = document.createElement('span');
        
        try{
            gridDistanceText.innerText = parseInt(distance(document.getElementById("myGrid").value, arg.stations[i]['DXGRID'])) + ' km';
        } catch {
            gridDistanceText.innerText = '---'
        }
        gridDistance.appendChild(gridDistanceText);    

        var dataType = document.createElement("td");
        var dataTypeText = document.createElement('span');
        dataTypeText.innerText = arg.stations[i]['DATATYPE']
        dataType.appendChild(dataTypeText);
         
        if(dataTypeText.innerText == 'CQ CQ CQ'){
            row.classList.add("table-success");
        }
        
        if(dataTypeText.innerText == 'DATA-CHANNEL'){
            row.classList.add("table-warning");
        }
                
        if(dataTypeText.innerText == 'BEACON'){
            row.classList.add("table-light");
        }
 
         if(dataTypeText.innerText == 'PING'){
            row.classList.add("table-info");
        }
        
        if(dataTypeText.innerText == 'PING-ACK'){
            row.classList.add("table-primary");
        }               


        var snr = document.createElement("td");
        var snrText = document.createElement('span');
        snrText.innerText = arg.stations[i]['SNR']
        snr.appendChild(snrText);
        
        row.appendChild(timestamp);
        row.appendChild(dxCall);
        row.appendChild(dxGrid);
        row.appendChild(gridDistance);
        row.appendChild(dataType);
        row.appendChild(snr);

        tbl.appendChild(row);
    }
     
});




ipcRenderer.on('action-update-daemon-state', (event, arg) => {


    // RAM
    document.getElementById("progressbar_ram").setAttribute("aria-valuenow", arg.ram_usage)
    document.getElementById("progressbar_ram").setAttribute("style", "width:" + arg.ram_usage + "%;")
    document.getElementById("progressbar_ram_value").innerHTML = arg.ram_usage + "%"

    // CPU
    document.getElementById("progressbar_cpu").setAttribute("aria-valuenow", arg.cpu_usage)
    document.getElementById("progressbar_cpu").setAttribute("style", "width:" + arg.cpu_usage + "%;")
    document.getElementById("progressbar_cpu_value").innerHTML = arg.cpu_usage + "%"


    // UPDATE AUDIO INPUT

    if (document.getElementById("audio_input_selectbox").length != arg.input_devices.length) {
        document.getElementById("audio_input_selectbox").innerHTML = ""
        for (i = 0; i < arg.input_devices.length; i++) {
            var option = document.createElement("option");
            option.text = arg.input_devices[i]['NAME'];
            option.value = arg.input_devices[i]['ID'];

            document.getElementById("audio_input_selectbox").add(option);
        }
    }
    // UPDATE AUDIO OUTPUT

    if (document.getElementById("audio_output_selectbox").length != arg.output_devices.length) {
        document.getElementById("audio_output_selectbox").innerHTML = ""
        for (i = 0; i < arg.output_devices.length; i++) {
            var option = document.createElement("option");
            option.text = arg.output_devices[i]['NAME'];
            option.value = arg.output_devices[i]['ID'];
            document.getElementById("audio_output_selectbox").add(option);
        }
    }

    // TNC RUNNING STATE
    document.getElementById("tnc_running_state").innerHTML = arg.tnc_running_state;
    if (arg.tnc_running_state == "running") {
        document.getElementById('hamlib_deviceid').disabled = true
        document.getElementById('hamlib_deviceport').disabled = true
        document.getElementById('hamlib_ptt').disabled = true
        document.getElementById('audio_input_selectbox').disabled = true
        document.getElementById('audio_output_selectbox').disabled = true
        document.getElementById('stopTNC').disabled = false
        document.getElementById('startTNC').disabled = true
        document.getElementById('myCall').disabled = false
        document.getElementById('dxCall').disabled = false
        document.getElementById('saveMyCall').disabled = false
        document.getElementById('myGrid').disabled = false
        document.getElementById('saveMyGrid').disabled = false
        document.getElementById("hamlib_serialspeed").disabled = true
        document.getElementById("startTransmission").disabled = false


    } else {
        document.getElementById('hamlib_deviceid').disabled = false
        document.getElementById('hamlib_deviceport').disabled = false
        document.getElementById('hamlib_ptt').disabled = false
        document.getElementById('audio_input_selectbox').disabled = false
        document.getElementById('audio_output_selectbox').disabled = false
        document.getElementById('stopTNC').disabled = true
        document.getElementById('startTNC').disabled = false
        document.getElementById('myCall').disabled = true
        document.getElementById('dxCall').disabled = true
        document.getElementById('saveMyCall').disabled = true
        document.getElementById('myGrid').disabled = true
        document.getElementById('saveMyGrid').disabled = true
        document.getElementById("hamlib_serialspeed").disabled = false
        document.getElementById("startTransmission").disabled = true

    }

});


ipcRenderer.on('action-update-daemon-connection', (event, arg) => {

    if (arg.daemon_connection == 'open') {
        document.getElementById("daemon_connection_state").className = "btn btn-success";
                document.getElementById("blurdiv").style.webkitFilter = "blur(0px)";

    }
    if (arg.daemon_connection == 'opening') {
        document.getElementById("daemon_connection_state").className = "btn btn-warning";
                document.getElementById("blurdiv").style.webkitFilter = "blur(10px)";

    }
    if (arg.daemon_connection == 'closed') {
        document.getElementById("daemon_connection_state").className = "btn btn-danger";
        document.getElementById("blurdiv").style.webkitFilter = "blur(10px)";
    }

});


ipcRenderer.on('action-update-rx-buffer', (event, arg) => {

var data = arg.data["DATA"]

    var tbl = document.getElementById("rx-data");
    document.getElementById("rx-data").innerHTML = ''

    for (i = 0; i < arg.data.length; i++) {

        // first we update the PING window
        if (arg.data[i]['DXCALLSIGN'] == document.getElementById("dxCall").value) {
            document.getElementById("pingDistance").innerHTML = arg.stations[i]['DXGRID']
            document.getElementById("pingDB").innerHTML = arg.stations[i]['SNR']

        }

        // now we update the heard stations list

        var row = document.createElement("tr");
        //https://stackoverflow.com/q/51421470 

        //https://stackoverflow.com/a/847196 
        timestampRaw = arg.data[i]['TIMESTAMP']
        var date = new Date(timestampRaw * 1000);
        var hours = date.getHours();
        var minutes = "0" + date.getMinutes();
        var seconds = "0" + date.getSeconds();
        var datetime = hours + ':' + minutes.substr(-2) + ':' + seconds.substr(-2);

        var timestamp = document.createElement("td");
        var timestampText = document.createElement('span');
        timestampText.innerText = datetime
        timestamp.appendChild(timestampText);

        var dxCall = document.createElement("td");
        var dxCallText = document.createElement('span');
        dxCallText.innerText = arg.data[i]['DXCALLSIGN']
        dxCall.appendChild(dxCallText);

/*
        var dxGrid = document.createElement("td");
        var dxGridText = document.createElement('span');
        dxGridText.innerText = arg.data[i]['DXGRID']
        dxGrid.appendChild(dxGridText);
*/

        var fileName = document.createElement("td");
        var fileNameText = document.createElement('span');
        fileNameText.innerText = arg.data[i]['RXDATA'][0]['filename']
        fileName.appendChild(fileNameText);



        row.appendChild(timestamp);
        row.appendChild(dxCall);
  //      row.appendChild(dxGrid);
        row.appendChild(fileName);
        
        tbl.appendChild(row);
        
 
 
        // Creates rxdata folder if not exists
        // https://stackoverflow.com/a/13544465
        fs.mkdir('rxdata', { recursive: true },  function(err) {
            console.log(err);
        });
 
        // write file to rxdata folder
        var base64String = arg.data[i]['RXDATA'][0]['data']
        // remove header from base64 String
        // https://www.codeblocq.com/2016/04/Convert-a-base64-string-to-a-file-in-Node/
        var base64Data = base64String.split(';base64,').pop()
        //write data to file
        require("fs").writeFile('rxdata/' + arg.data[i]['RXDATA'][0]['filename'], base64Data, 'base64', function(err) {
            console.log(err);
        });        
    }

});


ipcRenderer.on('run-tnc-command', (event, arg) => {
    if (arg.command == 'saveMyCall') {
        sock.saveMyCall(arg.callsign)
    }
    if (arg.command == 'saveMyGrid') {
        sock.saveMyGrid(arg.grid)
    }
    if (arg.command == 'ping') {
        sock.sendPing(arg.dxcallsign)
    }

    if (arg.command == 'sendFile') {
        sock.sendFile(arg.dxcallsign, arg.mode, arg.frames, arg.filename, arg.filetype, arg.data, arg.checksum)
    }
    if (arg.command == 'sendMessage') {
        sock.sendMessage(arg.dxcallsign, arg.mode, arg.frames, arg.data, arg.checksum)
    }
});