Update a specific variable at config.json using a command - discord.js

Question

So I am trying to create a command that allows a user to enter on or off duty. I am planning to create a panel later displaying who is on or off duty. But I am having trouble updating the value of in the config.json file which corresponds to the staff ID
I am checking the users ID and if it already exists in the config.json file the bot won't write down the ID again
const { Util } = require('discord.js');
const fs = require('fs');
const path = require('path');
module.exports = {
config:{
name:'test'
},
run: async(bot, message, args) => {
const staffMemberID = message.member.id;
function jsonRead(filePath) {
return new Promise((resolve, reject) => {
fs.readFile(filePath, 'utf-8', (err, content) => {
if (err) {
reject(err);
} else {
try {
resolve(JSON.parse(content));
} catch (err) {
reject(err);
}
}
});
});
}
function jsonWrite(filePath, data) {
return new Promise((resolve, reject) => {
fs.writeFile(filePath, JSON.stringify(data), (err) => {
if (err) {
reject(err);
}
resolve(true);
});
});
}
const filePath = path.resolve(`${__dirname}/../storage/config.json`);
if(bot.config.status.find(u => staffMemberID)) {
try {
const config = await jsonRead(filePath);
config.status.push({
value:'On Duty',
});
jsonWrite(filePath, config);
message.channel.send(`Success. ${config.status}`);
} catch (err) {
console.log(err);
}
} else {
try {
const config = await jsonRead(filePath);
config.status.push({
name:staffMember,
value:'On Duty',
});
jsonWrite(filePath, config);
message.channel.send(`Success. ${config.status}`);
} catch (err) {
console.log(err);
}
}
}
}