FreeDATA/gui/preload-chat.js
dj2ls c89e4beebf fixed audio device list
audio device list not complete when init after multiprocessing init. #153
2022-04-08 11:35:13 +02:00

836 lines
31 KiB
JavaScript

const path = require('path')
const {
ipcRenderer
} = require('electron')
const {
v4: uuidv4
} = require('uuid');
const utf8 = require('utf8');
const blobUtil = require('blob-util')
// https://stackoverflow.com/a/26227660
var appDataFolder = process.env.APPDATA || (process.platform == 'darwin' ? process.env.HOME + '/Library/Application Support' : process.env.HOME + "/.config")
var configFolder = path.join(appDataFolder, "FreeDATA");
var configPath = path.join(configFolder, 'config.json')
const config = require(configPath);
// set date format
const dateFormat = new Intl.DateTimeFormat('en-GB', {
timeStyle: 'long',
dateStyle: 'full'
});
// set date format information
const dateFormatShort = new Intl.DateTimeFormat('en-GB', {
year: 'numeric',
month: 'numeric',
day: 'numeric',
hour: 'numeric',
minute: 'numeric',
second: 'numeric',
hour12: false,
});
const dateFormatHours = new Intl.DateTimeFormat('en-GB', {
hour: 'numeric',
minute: 'numeric',
hour12: false,
});
// split character
const split_char = '\0;'
// global for our selected file we want to transmit
// ----------------- some chat globals
var filetype = '';
var file = '';
var filename = '';
var callsign_counter = 0;
var selected_callsign = '';
// -----------------------------------
var chatDB = path.join(configFolder, 'chatDB')
// ---- MessageDB
var PouchDB = require('pouchdb');
PouchDB.plugin(require('pouchdb-find'));
var db = new PouchDB(chatDB);
var dxcallsigns = new Set();
db.createIndex({
index: {
fields: ['timestamp', 'uuid', 'dxcallsign', 'dxgrid', 'msg', 'checksum', 'type', 'command', 'status', 'percent', 'bytesperminute', '_attachments']
}
}).then(function(result) {
// handle result
console.log(result)
}).catch(function(err) {
console.log(err);
});
db.find({
selector: {
timestamp: {
$exists: true
}
},
sort: [{
'timestamp': 'asc'
}]
}).then(function(result) {
// handle result
if (typeof(result) !== 'undefined') {
result.docs.forEach(function(item) {
console.log(item)
update_chat(item);
});
}
}).catch(function(err) {
console.log(err);
});
// WINDOW LISTENER
window.addEventListener('DOMContentLoaded', () => {
// theme selector
if(config.theme != 'default'){
var theme_path = "../node_modules/bootswatch/dist/"+ config.theme +"/bootstrap.min.css";
document.getElementById("bootstrap_theme").href = theme_path;
} else {
var theme_path = "../node_modules/bootstrap/dist/css/bootstrap.min.css";
document.getElementById("bootstrap_theme").href = theme_path;
}
document.querySelector('emoji-picker').addEventListener("emoji-click", (event) => {
document.getElementById('chatModuleMessage').setRangeText(event.detail.emoji.unicode)
console.log(event.detail);
})
document.getElementById("emojipickerbutton").addEventListener("click", () => {
var element = document.getElementById("emojipickercontainer")
console.log(element.style.display);
if (element.style.display === "none") {
element.style.display = "block";
} else {
element.style.display = "none";
}
})
document.getElementById("delete_selected_chat").addEventListener("click", () => {
db.find({
selector: {
dxcallsign: selected_callsign
}
}).then(function(result) {
// handle result
if (typeof(result) !== 'undefined') {
result.docs.forEach(function(item) {
console.log(item)
db.get(item._id).then(function(doc) {
return db.remove(doc);
});
location.reload();
});
}
}).catch(function(err) {
console.log(err);
});
})
document.getElementById("selectFilesButton").addEventListener("click", () => {
//document.getElementById('selectFiles').click();
ipcRenderer.send('select-file', {
title: 'Title',
});
})
document.getElementById("ping").addEventListener("click", () => {
ipcRenderer.send('run-tnc-command', {
command: 'ping', dxcallsign: selected_callsign
});
})
document.addEventListener("keyup", function(event) {
// Number 13 == Enter
if (event.keyCode === 13 && !event.shiftKey) {
// Cancel the default action, if needed
event.preventDefault();
// Trigger the button element with a click
document.getElementById("sendMessage").click();
}
});
// NEW CHAT
document.getElementById("createNewChatButton").addEventListener("click", () => {
var dxcallsign = document.getElementById('chatModuleNewDxCall').value;
var uuid = uuidv4()
db.post({
_id: uuid,
timestamp: Math.floor(Date.now() / 1000),
dxcallsign: dxcallsign.toUpperCase(),
dxgrid: '---',
msg: 'null',
checksum: 'null',
type: 'newchat',
status: 'null',
uuid: uuid
}).then(function(response) {
// handle response
console.log("new database entry");
console.log(response);
}).catch(function(err) {
console.log(err);
});
db.get(uuid, [{
attachments: true
}]).then(function(doc) {
// handle doc
update_chat(doc)
}).catch(function(err) {
console.log(err);
});
});
// SEND MSG
document.getElementById("sendMessage").addEventListener("click", () => {
document.getElementById('emojipickercontainer').style.display = "none";
var dxcallsign = selected_callsign.toUpperCase();
var chatmessage = document.getElementById('chatModuleMessage').value;
console.log(file);
console.log(filename);
console.log(filetype);
var data_with_attachment = chatmessage + split_char + filename + split_char + filetype + split_char + file;
document.getElementById('selectFilesButton').innerHTML = ``;
var uuid = uuidv4();
console.log(data_with_attachment)
let Data = {
command: "send_message",
dxcallsign: dxcallsign,
mode: 255,
frames: 1,
data: data_with_attachment,
checksum: '123',
uuid: uuid
};
ipcRenderer.send('run-tnc-command', Data);
db.post({
_id: uuid,
timestamp: Math.floor(Date.now() / 1000),
dxcallsign: dxcallsign,
dxgrid: 'null',
msg: chatmessage,
checksum: 'null',
type: "transmit",
status: 'transmit',
uuid: uuid,
_attachments: {
[filename]: {
content_type: filetype,
data: btoa(file)
}
}
}).then(function(response) {
// handle response
console.log("new database entry");
console.log(response);
}).catch(function(err) {
console.log(err);
});
db.get(uuid, [{
attachments: true
}]).then(function(doc) {
// handle doc
update_chat(doc)
}).catch(function(err) {
console.log(err);
});
// scroll to bottom
var element = document.getElementById("message-container");
element.scrollTo(0, element.scrollHeight);
// clear input
document.getElementById('chatModuleMessage').value = ''
// after adding file data to our attachment varible, delete it from global
filetype = '';
file = '';
filename = '';
})
// cleanup after transmission
filetype = '';
file = '';
filename = '';
});
ipcRenderer.on('return-selected-files', (event, arg) => {
filetype = arg.mime;
file = arg.data;
filename = arg.filename;
document.getElementById('selectFilesButton').innerHTML = `
<span class="position-absolute top-0 start-85 translate-middle p-2 bg-danger border border-light rounded-circle">
<span class="visually-hidden">New file selected</span>
</span>
`;
});
ipcRenderer.on('action-update-transmission-status', (event, arg) => {
console.log(arg.status);
console.log(arg.uuid);
db.get(arg.uuid, {
attachments: true
}).then(function(doc) {
return db.put({
_id: arg.uuid,
_rev: doc._rev,
timestamp: doc.timestamp,
dxcallsign: doc.dxcallsign,
dxgrid: doc.dxgrid,
msg: doc.msg,
checksum: doc.checksum,
type: "transmit",
status: arg.status,
percent: arg.percent,
bytesperminute: arg.bytesperminute,
uuid: doc.uuid,
_attachments: doc._attachments
});
}).then(function(response) {
// handle response
db.get(arg.uuid, [{
attachments: true
}]).then(function(doc) {
// handle doc
update_chat(doc);
}).catch(function(err) {
console.log(err);
});
}).catch(function(err) {
console.log(err);
});
});
ipcRenderer.on('action-new-msg-received', (event, arg) => {
console.log(arg.data)
var new_msg = arg.data;
new_msg.forEach(function(item) {
console.log(item)
let obj = new Object();
if (item.type == 'ping') {
obj.timestamp = item.timestamp;
obj.dxcallsign = item.dxcallsign;
obj.dxgrid = item.dxgrid;
obj.uuid = item.uuid;
obj.command = 'ping';
obj.checksum = 'null';
obj.msg = 'null';
obj.status = item.status;
obj.snr = item.snr;
obj.type = item.type;
db.put({
_id: obj.uuid,
timestamp: obj.timestamp,
uuid: obj.uuid,
dxcallsign: obj.dxcallsign,
dxgrid: obj.dxgrid,
msg: obj.msg,
checksum: obj.checksum,
type: obj.type,
command: obj.command,
status: obj.status,
snr: obj.snr,
}).then(function(response) {
console.log("new database entry");
console.log(response);
}).catch(function(err) {
console.log(err);
});
db.get(item.uuid, {
attachments: true
}).then(function(doc) {
console.log(doc)
update_chat(doc);
}).catch(function(err) {
console.log(err);
});
} else if (item.type == 'beacon') {
obj.timestamp = item.timestamp;
obj.dxcallsign = item.dxcallsign;
obj.dxgrid = item.dxgrid;
obj.uuid = item.uuid;
obj.command = 'beacon';
obj.checksum = 'null';
obj.msg = 'null';
obj.status = item.status;
obj.snr = item.snr;
obj.type = item.type;
db.put({
_id: obj.uuid,
timestamp: obj.timestamp,
uuid: obj.uuid,
dxcallsign: obj.dxcallsign,
dxgrid: obj.dxgrid,
msg: obj.msg,
checksum: obj.checksum,
type: obj.type,
command: obj.command,
status: obj.status,
snr: obj.snr,
}).then(function(response) {
console.log("new database entry");
console.log(response);
}).catch(function(err) {
console.log(err);
});
db.get(item.uuid, {
attachments: true
}).then(function(doc) {
console.log(doc);
update_chat(doc);
}).catch(function(err) {
console.log(err);
});
} else if (item.arq == 'received') {
var encoded_data = atob(item.data);
var splitted_data = encoded_data.split(split_char);
obj.timestamp = item.timestamp;
obj.dxcallsign = item.dxcallsign;
obj.dxgrid = item.dxgrid;
obj.command = splitted_data[1];
obj.checksum = splitted_data[2];
// convert message to unicode from utf8 because of emojis
obj.uuid = utf8.decode(splitted_data[3]);
obj.msg = utf8.decode(splitted_data[4]);
obj.status = 'null';
obj.snr = 'null';
obj.type = 'received';
obj.filename = utf8.decode(splitted_data[5]);
obj.filetype = utf8.decode(splitted_data[6]);
obj.file = btoa(utf8.decode(splitted_data[7]));
db.put({
_id: obj.uuid,
timestamp: obj.timestamp,
uuid: obj.uuid,
dxcallsign: obj.dxcallsign,
dxgrid: obj.dxgrid,
msg: obj.msg,
checksum: obj.checksum,
type: obj.type,
command: obj.command,
status: obj.status,
snr: obj.snr,
_attachments: {
[obj.filename]: {
content_type: obj.filetype,
data: obj.file
}
}
}).then(function(response) {
console.log("new database entry");
console.log(response);
}).catch(function(err) {
console.log(err);
});
db.get(obj.uuid, {
attachments: true
}).then(function(doc) {
console.log(doc);
update_chat(doc);
}).catch(function(err) {
console.log(err);
});
}
});
//window.location = window.location;
});
// Update chat list
update_chat = function(obj) {
//console.log(obj);
var dxcallsign = obj.dxcallsign;
var timestamp = dateFormat.format(obj.timestamp * 1000);
var timestampShort = dateFormatShort.format(obj.timestamp * 1000);
var timestampHours = dateFormatHours.format(obj.timestamp * 1000);
var dxgrid = obj.dxgrid;
// define shortmessage
if (obj.msg == 'null' || obj.msg == 'NULL'){
var shortmsg = obj.type;
} else {
var shortmsg = obj.msg;
var maxlength = 40;
var shortmsg = shortmsg.length > maxlength ? shortmsg.substring(0, maxlength - 3) + "..." : shortmsg;
}
try {
console.log(Object.keys(obj._attachments)[0].length)
if (typeof(obj._attachments) !== 'undefined' && Object.keys(obj._attachments)[0].length > 0) {
//var filename = obj._attachments;
var filename = Object.keys(obj._attachments)[0]
var filetype = filename.split('.')[1]
var filesize = obj._attachments[filename]["length"] + " Bytes";
var fileheader = `
<div class="card-header border-0 text-end p-0 mb-0 hover-overlay" id="save-file-msg-${obj._id}">
<p class="text-right mb-0 p-1 text-black" style="text-align: right; font-size : 1rem">
<span class="badge bg-secondary text-white p-1">${filename}</span>
<span class="badge bg-secondary text-white p-1">${filesize}</span>
<i class="bi bi-filetype-${filetype}" style="font-size: 3rem; color: black;"></i>
</p>
</div>
`;
} else {
var filename = '';
var fileheader = '';
}
} catch {
console.log("error with database parsing...")
}
// CALLSIGN LIST
if (!(document.getElementById('chat-' + dxcallsign + '-list'))) {
// increment callsign counter
callsign_counter++;
if (callsign_counter == 1) {
var callsign_selected = 'active show'
//document.getElementById('chatModuleDxCall').value = dxcallsign;
selected_callsign = dxcallsign;
}
var new_callsign = `
<a class="list-group-item list-group-item-action rounded-4 rounded-top rounded-bottom border-1 mb-2 ${callsign_selected}" id="chat-${dxcallsign}-list" data-bs-toggle="list" href="#chat-${dxcallsign}" role="tab" aria-controls="chat-${dxcallsign}">
<div class="d-flex w-100 justify-content-between">
<div class="rounded-circle p-0">
<i class="bi bi-person-circle p-1" style="font-size:2rem;"></i>
</div>
<h5 class="mb-1">${dxcallsign}</h5>
<span class="badge bg-secondary text-white p-1 h-100" id="chat-${dxcallsign}-list-dxgrid"><small>${dxgrid}</small></span>
<span style="font-size:0.8rem;" id="chat-${dxcallsign}-list-time">${timestampHours}</span>
<span class="position-absolute m-2 bottom-0 end-0" style="font-size:0.8rem;" id="chat-${dxcallsign}-list-shortmsg">${shortmsg}</span>
</div>
</a>
`;
document.getElementById('list-tab').insertAdjacentHTML("beforeend", new_callsign);
var message_area = `
<div class="tab-pane fade ${callsign_selected}" id="chat-${dxcallsign}" role="tabpanel" aria-labelledby="chat-${dxcallsign}-list"></div>
`;
document.getElementById('nav-tabContent').insertAdjacentHTML("beforeend", message_area);
// create eventlistener for listening on clicking on a callsign
document.getElementById('chat-' + dxcallsign + '-list').addEventListener('click', function() {
//document.getElementById('chatModuleDxCall').value = dxcallsign;
selected_callsign = dxcallsign;
// scroll to bottom
var element = document.getElementById("message-container");
console.log(element.scrollHeight)
element.scrollTo(0, element.scrollHeight);
});
// if callsign entry already exists - update
} else {
// gridsquare - update only on receive
if (obj.type !== 'transmit'){
document.getElementById('chat-' + dxcallsign +'-list-dxgrid').innerHTML = dxgrid;
}
// time
document.getElementById('chat-' + dxcallsign +'-list-time').innerHTML = timestampHours;
// short message
document.getElementById('chat-' + dxcallsign +'-list-shortmsg').innerHTML = shortmsg;
}
// APPEND MESSAGES TO CALLSIGN
if (!(document.getElementById('msg-' + obj._id))) {
if (obj.type == 'ping') {
var new_message = `
<div class="m-1 p-0 rounded-pill w-100 bg-secondary bg-gradient" id="msg-${obj._id}">
<p class="text-small text-white mb-0 text-break"><i class="m-3 bi bi-arrow-left-right"></i>snr: ${obj.snr} - ${timestamp} </p>
</div>
`;
}
if (obj.type == 'beacon') {
var new_message = `
<div class="m-1 p-0 rounded-pill w-100 bg-info bg-gradient" id="msg-${obj._id}">
<p class="text-small text-white text-break"><i class="m-3 bi bi-broadcast"></i>snr: ${obj.snr} - ${timestamp} </p>
</div>
`;
}
if (obj.type == 'newchat') {
var new_message = `
<div class="m-1 p-0 rounded-pill w-100 bg-light bg-gradient" id="msg-${obj._id}">
<p class="text-small text-dark text-break"><i class="m-3 bi bi-file-earmark-plus"></i> new chat openend - ${timestamp} </p>
</div>
`;
}
// CHECK FOR NEW LINE AND REPLACE WITH <br>
var message_html = obj.msg.replaceAll(/\n/g, "<br>");
if (obj.type == 'received') {
var new_message = `
<div class="mt-3 rounded-3 mb-0 w-75" id="msg-${obj._id}">
<!--<p class="font-monospace text-small mb-0 text-muted text-break">${timestamp}</p>-->
<div class="card border-light bg-light" id="msg-${obj._id}">
${fileheader}
<div class="card-body p-0">
<p class="card-text p-2 mb-0 text-break text-wrap">${message_html}</p>
<p class="text-right mb-0 p-1 text-white" style="text-align: left; font-size : 0.9rem">
<span class="badge bg-light text-muted">${timestamp}</span>
</p>
</div>
</div>
</div>
`;
}
if (obj.type == 'transmit') {
console.log('msg-' + obj._id + '-status')
var new_message = `
<div class="ml-auto rounded-3 mt-3 mb-0 w-75" style="margin-left: auto;">
<!--<p class="font-monospace text-right mb-0 text-muted" style="text-align: right;">${timestamp}</p>-->
<div class="card border-primary" id="msg-${obj._id}">
${fileheader}
<div class="card-body p-0 text-right bg-primary">
<p class="card-text p-2 mb-0 text-white text-break text-wrap">${message_html}</p>
<p class="text-right mb-0 p-1 text-white" style="text-align: right; font-size : 0.9rem">
<span class="text-light" style="font-size: 0.7rem;">${timestamp} - </span>
<span class="text-light" id="msg-${obj._id}-bytesperminute" style="font-size: 0.7rem;">${obj.bytesperminute} Bytes/min</span>
<span class="text-white" id="msg-${obj._id}-status" style="font-size:0.8rem;">${get_icon_for_state(obj.status)}</span>
<button type="button" id="retransmit-msg-${obj._id}" class="btn btn-sm btn-light p-0" style="height:20px;width:30px"><i class="bi bi-arrow-repeat" style="font-size: 0.9rem; color: black;"></i></button>
</p>
<div class="progress p-0 m-0 rounded-0 rounded-bottom" style="height: 10px;">
<div class="progress-bar bg-primary p-0 m-0 rounded-0" id="msg-${obj._id}-progress" role="progressbar" style="width: ${obj.percent}%;" aria-valuenow="${obj.percent}" aria-valuemin="0" aria-valuemax="100">${obj.percent} %</div>
</div>
</div>
</div>
</div>
`;
}
// CHECK CHECK CHECK --> This could be done better
var id = "chat-" + obj.dxcallsign
document.getElementById(id).insertAdjacentHTML("beforeend", new_message);
var element = document.getElementById("message-container");
console.log(element.scrollHeight)
} else if (document.getElementById('msg-' + obj._id)) {
console.log("element already exists......")
console.log(obj)
console.log(document.getElementById('msg-' + obj._id + '-progress').getAttribute("aria-valuenow"))
document.getElementById('msg-' + obj._id + '-status').innerHTML = get_icon_for_state(obj.status);
document.getElementById('msg-' + obj._id + '-progress').setAttribute("aria-valuenow", obj.percent);
document.getElementById('msg-' + obj._id + '-progress').setAttribute("style", "width:" + obj.percent + "%;");
document.getElementById('msg-' + obj._id + '-progress').innerHTML = obj.percent + "%";
if (obj.percent >= 100){
document.getElementById('msg-' + obj._id + '-progress').classList.remove("progress-bar-striped");
document.getElementById('msg-' + obj._id + '-progress').classList.remove("progress-bar-animated");
document.getElementById('msg-' + obj._id + '-progress').innerHTML = '';
} else {
document.getElementById('msg-' + obj._id + '-progress').classList.add("progress-bar-striped");
document.getElementById('msg-' + obj._id + '-progress').classList.add("progress-bar-animated");
}
document.getElementById('msg-' + obj._id + '-bytesperminute').innerHTML = obj.bytesperminute + ' Bytes/min';
//document.getElementById(id).className = message_class;
}
// CREATE SAVE TO FOLDER EVENT LISTENER
if (document.getElementById('save-file-msg-' + obj._id) && !document.getElementById('save-file-msg-' + obj._id).hasAttribute('listenerOnClick')) {
// set Attribute to determine if we already created an EventListener for this element
document.getElementById('save-file-msg-' + obj._id).setAttribute('listenerOnClick', 'true');
document.getElementById('save-file-msg-' + obj._id).addEventListener("click", () => {
saveFileToFolder(obj._id)
});
document.getElementById('save-file-msg-' + obj._id).addEventListener("mouseover", () => {
document.getElementById('save-file-msg-' + obj._id).style.backgroundColor = "rgba(0,0,0,.1)";
});
document.getElementById('save-file-msg-' + obj._id).addEventListener("mouseleave", () => {
document.getElementById('save-file-msg-' + obj._id).style.backgroundColor = "rgba(0,0,0,.03)";
});
}
// CREATE RESEND MSG EVENT LISTENER
// check if element exists and if we already created NOT created an event listener
if (document.getElementById('retransmit-msg-' + obj._id) && !document.getElementById('retransmit-msg-' + obj._id).hasAttribute('listenerOnClick')) {
// set Attribute to determine if we already created an EventListener for this element
document.getElementById('retransmit-msg-' + obj._id).setAttribute('listenerOnClick', 'true');
document.getElementById('retransmit-msg-' + obj._id).addEventListener("click", () => {
db.get(obj._id, {
attachments: true
}).then(function(doc) {
// handle doc
console.log(doc)
var filename = Object.keys(obj._attachments)[0]
var filetype = filename.content_type
console.log(filename)
console.log(filetype)
var file = obj._attachments[filename].data
console.log(file)
console.log(Object.keys(obj._attachments)[0].data)
//var file = atob(obj._attachments[filename]["data"])
db.getAttachment(obj._id, filename).then(function(data) {
var file = blobUtil.arrayBufferToBinaryString(data)
// converting back to blob for debugging
// length must be equal of file size
var blob = blobUtil.binaryStringToBlob(file);
console.log(blob)
var data_with_attachment = doc.msg + split_char + filename + split_char + filetype + split_char + file;
let Data = {
command: "send_message",
dxcallsign: doc.dxcallsign,
mode: 255,
frames: 1,
data: data_with_attachment,
checksum: doc.checksum,
uuid: doc.uuid
};
console.log(Data)
ipcRenderer.send('run-tnc-command', Data);
});
}).catch(function(err) {
console.log(err);
});
});
};
//window.location = window.location
}
function getObjByID(id) {
/*
{
"timestamp": 1648139683,
"dxcallsign": "DN2LS-0",
"dxgrid": "null",
"msg": "",
"checksum": "null",
"type": "transmit",
"status": "transmit",
"uuid": "5b72a46c-49cf-40d6-8936-a64c95bc3da7",
"_attachments": {
"CMakeLists.txt": {
"content_type": "text/plain",
"digest": "md5-Cdk6Ol6uuJ7Gj5lin9o4SQ==",
"length": 7802,
"revpos": 1,
"stub": true
}
},
"_id": "5b72a46c-49cf-40d6-8936-a64c95bc3da7",
"_rev": "1-6df2d7227c4f89f8a3a2b4978661dd79"
}
**/
db.get(id, {
attachments: true
}).then(function(doc) {
return obj
}).catch(function(err) {
console.log(err);
return false
});
}
function saveFileToFolder(id) {
db.get(id, {
attachments: true
}).then(function(obj) {
console.log(obj)
console.log(Object.keys(obj._attachments)[0].content_type)
var filename = Object.keys(obj._attachments)[0]
var filetype = filename.content_type
var file = filename.data
console.log(file)
console.log(filename.data)
db.getAttachment(id, filename).then(function(data) {
// handle result
console.log(data.length)
//data = new Blob([data.buffer], { type: 'image/png' } /* (1) */)
console.log(data)
let Data = {
file: data,
filename: filename,
filetype: filetype,
}
console.log(Data)
ipcRenderer.send('save-file-to-folder', Data);
}).catch(function(err) {
console.log(err);
return false
});
}).catch(function(err) {
console.log(err);
});
}
// function for setting an ICON to the correspinding state
function get_icon_for_state(state) {
if (state == 'transmit') {
var status_icon = '<i class="bi bi-check" style="font-size:1rem;"></i>';
} else if (state == 'transmitting') {
var status_icon = '<i class="bi bi-arrow-left-right" style="font-size:0.8rem;"></i>';
} else if (state == 'failed') {
var status_icon = '<i class="bi bi-exclamation-circle" style="font-size:1rem;"></i>';
} else if (state == 'success') {
var status_icon = '<i class="bi bi-check-all" style="font-size:1rem;"></i>';
} else {
var status_icon = '<i class="bi bi-question" style="font-size:1rem;"></i>';
}
return status_icon;
};