if (!message.guild) return message.channel.send("This command can only be used in a guild.");

const member = message.guild.members.cache.get(message.author.id);
if (!member || !member.presence || !member.presence.clientStatus) {
 return message.channel.send("Cannot determine user status.");
}

const userIsOnMobile = member.presence.clientStatus.mobile;
message.channel.send(`${member.displayName} is ${userIsOnMobile ? 'using' : 'not using'} Discord on mobile.`);

if (!message.guild) return message.channel.send("This command can only be used in a guild.");

const member = message.guild.members.cache.get(message.author.id);
if (!member || !member.presence || !member.presence.clientStatus) {
 return message.channel.send("Cannot determine user status.");
}

const userIsOnMobile = member.presence.clientStatus.mobile;
message.channel.send(`${member.displayName} is ${userIsOnMobile ? 'using' : 'not using'} Discord on mobile.`);