import React, { useState, useRef, useEffect, useCallback } from 'react';
import { useNavigate } from 'react-router-dom';
import { useServerStore } from '../../stores/serverStore';
import { useChatStore } from '../../stores/chatStore';
import { useUIStore } from '../../stores/uiStore';
import { useAuthStore } from '../../stores/authStore';
import { VoiceChannel } from '../voice/VoiceChannel';
import { VoiceControls } from '../voice/VoiceControls';
import { useVoiceStore } from '../../stores/voiceStore';
import { Avatar } from '../ui/Avatar';
import { wsSend } from '../../hooks/useWebSocket';
import { getActiveRoom } from '../../hooks/useLiveKit';

export function ChannelSidebar() {
  const servers = useServerStore((s) => s.servers);
  const currentServerId = useServerStore((s) => s.currentServerId);
  const channels = useServerStore((s) => s.channels);
  const dmChannels = useServerStore((s) => s.dmChannels);
  const currentChannelId = useChatStore((s) => s.currentChannelId);
  const setCurrentChannel = useChatStore((s) => s.setCurrentChannel);
  const unreadChannels = useChatStore((s) => s.unreadChannels);
  const openModal = useUIStore((s) => s.openModal);
  const user = useAuthStore((s) => s.user);
  const members = useServerStore((s) => s.members);
  const currentVoiceChannelId = useVoiceStore((s) => s.currentVoiceChannelId);
  const setCurrentVoiceChannel = useVoiceStore((s) => s.setCurrentVoiceChannel);
  const isMuted = useVoiceStore((s) => s.isMuted);
  const isDeafened = useVoiceStore((s) => s.isDeafened);
  const toggleMic = useVoiceStore((s) => s.toggleMic);
  const toggleDeafen = useVoiceStore((s) => s.toggleDeafen);
  const navigate = useNavigate();

  const handleMicToggle = async () => {
    const room = getActiveRoom();
    if (room) {
      try {
        await room.localParticipant.setMicrophoneEnabled(isMuted);
      } catch (err) {
        console.error('[ChannelSidebar] Failed to toggle mic:', err);
      }
    }
    toggleMic();
  };

  const handleDeafenToggle = () => {
    toggleDeafen();
  };

  const server = servers.find(s => s.id === currentServerId);
  const currentMember = members.find(m => m.userId === user?.id);
  const isAdminUser = currentMember?.role === 'admin' || currentMember?.role === 'owner';

  const textChannels = channels.filter(c => c.type === 'text');
  const voiceChannels = channels.filter(c => c.type === 'voice' || c.type === 'video');

  const handleChannelClick = (channelId: string) => {
    setCurrentChannel(channelId);
    navigate(`/channels/${currentServerId || '@me'}/${channelId}`);
  };

  const handleHomeClick = () => {
    setCurrentChannel(null);
    navigate('/channels/@me');
  };

  const handleVoiceJoin = (channelId: string) => {
    // Don't re-join the same channel — prevents duplicate LiveKit connections
    if (currentVoiceChannelId === channelId) {
      navigate(`/channels/${currentServerId}/${channelId}`);
      return;
    }
    setCurrentVoiceChannel(channelId);
    wsSend({ type: 'voice_join', channelId });
    navigate(`/channels/${currentServerId}/${channelId}`);
  };

  if (!server) {
    return (
      <div className="w-60 bg-discord-bg-secondary flex flex-col flex-shrink-0 select-none">
        <div className="h-12 px-[10px] flex items-center shadow-header z-10">
          <button className="flex-1 bg-discord-bg-tertiary text-discord-text-muted text-[13px] font-medium py-[5px] px-2 rounded-[4px] text-left hover:bg-discord-bg-tertiary/80 transition-colors">
            Find or start a conversation
          </button>
        </div>
        <div className="flex-1 overflow-y-auto pt-4 px-2 no-scrollbar">
          <div
            onClick={handleHomeClick}
            className={`flex items-center gap-3 px-2 h-[42px] rounded-[4px] cursor-pointer mb-[2px] transition-colors group ${
              !currentChannelId
                ? 'bg-discord-modifier-selected text-white'
                : 'text-discord-text-muted hover:bg-discord-modifier-hover hover:text-discord-text-secondary'
            }`}
          >
            <svg width="24" height="24" viewBox="0 0 24 24" fill="currentColor" className={`flex-shrink-0 ${!currentChannelId ? 'text-white' : 'opacity-70 group-hover:opacity-100'}`}>
              <path d="M13 10a4 4 0 1 0 0-8 4 4 0 0 0 0 8Zm-2-4a2 2 0 1 1 4 0 2 2 0 0 1-4 0Z" />
              <path d="M3 18a1 1 0 0 0 1 1h18a1 1 0 0 0 1-1v-1c0-2.76-5.37-4-8-4s-8 1.24-8 4v1Z" />
              <path d="M3.5 13.5a3.5 3.5 0 1 0 0-7 3.5 3.5 0 0 0 0 7Z" opacity=".5" />
            </svg>
            <span className="font-medium text-[16px]">Friends</span>
          </div>

          {/* Nitro */}
          <div
            className="flex items-center gap-3 px-2 h-[42px] rounded-[4px] cursor-pointer mb-[2px] transition-colors group text-discord-text-muted hover:bg-discord-modifier-hover hover:text-discord-text-secondary"
          >
            <svg width="24" height="24" viewBox="0 0 24 24" fill="currentColor" className="flex-shrink-0 opacity-70 group-hover:opacity-100">
              <path d="M2.98966977,9.35789159 C2.98966977,9.77582472 2.63542482,10.1300697 2.21749169,10.1300697 L2.21749169,10.1300697 C1.79955856,10.1300697 1.44531361,9.77582472 1.44531361,9.35789159 L1.44531361,9.35789159 C1.44531361,8.93995846 1.79955856,8.58571351 2.21749169,8.58571351 L2.21749169,8.58571351 C2.63542482,8.58571351 2.98966977,8.93995846 2.98966977,9.35789159 Z" transform="translate(12, 12) scale(1.2) translate(-12, -12)" />
              <path d="M21.7,9.358 L12.957,2.46 C12.396,2.014 11.604,2.014 11.043,2.46 L2.3,9.358 C2.113,9.507 2,9.734 2,9.975 L2,19.5 C2,20.881 3.119,22 4.5,22 L19.5,22 C20.881,22 22,20.881 22,19.5 L22,9.975 C22,9.734 21.887,9.507 21.7,9.358 Z M12,17.5 C10.619,17.5 9.5,16.381 9.5,15 C9.5,13.619 10.619,12.5 12,12.5 C13.381,12.5 14.5,13.619 14.5,15 C14.5,16.381 13.381,17.5 12,17.5 Z" />
            </svg>
            <span className="font-medium text-[16px]">Nitro</span>
          </div>

          {/* Shop */}
          <div
            className="flex items-center gap-3 px-2 h-[42px] rounded-[4px] cursor-pointer mb-[2px] transition-colors group text-discord-text-muted hover:bg-discord-modifier-hover hover:text-discord-text-secondary"
          >
            <svg width="24" height="24" viewBox="0 0 24 24" fill="currentColor" className="flex-shrink-0 opacity-70 group-hover:opacity-100">
              <path d="M2 5.5A1.5 1.5 0 0 1 3.5 4h17A1.5 1.5 0 0 1 22 5.5V7H2V5.5ZM2 9v9.5A1.5 1.5 0 0 0 3.5 20h17a1.5 1.5 0 0 0 1.5-1.5V9H2Zm9.5 3a.5.5 0 0 1 .5-.5h5a.5.5 0 0 1 0 1h-5a.5.5 0 0 1-.5-.5Zm-4-1h2a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1h-2a1 1 0 0 1-1-1v-1a1 1 0 0 1 1-1Z" />
            </svg>
            <span className="font-medium text-[16px]">Shop</span>
          </div>

          <div className="mt-[18px] px-2 mb-1 flex items-center justify-between group">
            <span className="text-[12px] font-bold text-discord-text-muted uppercase tracking-wider">Direct Messages</span>
            <button
              onClick={() => openModal('newDm')}
              className="text-discord-text-muted hover:text-discord-text-primary transition-colors"
              title="New Direct Message"
            >
              <svg width="16" height="16" viewBox="0 0 16 16" fill="currentColor">
                <path d="M8 2a.5.5 0 01.5.5v5h5a.5.5 0 010 1h-5v5a.5.5 0 01-1 0v-5h-5a.5.5 0 010-1h5v-5A.5.5 0 018 2z" />
              </svg>
            </button>
          </div>

          <div className="space-y-[2px]">
            {dmChannels.map((dm) => {
              const otherUser = dm.members.find(m => m.id !== user?.id);
              if (!otherUser) return null;
              const isDmUnread = unreadChannels.has(dm.id) && currentChannelId !== dm.id;

              return (
                <div
                  key={dm.id}
                  onClick={() => handleChannelClick(dm.id)}
                  className={`relative flex items-center gap-3 px-2 h-[42px] rounded-[4px] cursor-pointer transition-colors group ${
                    currentChannelId === dm.id
                      ? 'bg-discord-modifier-selected text-white'
                      : isDmUnread
                        ? 'text-white hover:bg-discord-modifier-hover'
                        : 'text-discord-text-muted hover:bg-discord-modifier-hover hover:text-discord-text-secondary'
                  }`}
                >
                  {isDmUnread && (
                    <div className="absolute -left-1 w-1 h-2 bg-white rounded-r-full" />
                  )}
                  <Avatar src={otherUser.avatar} name={otherUser.displayName ?? otherUser.username} size={32} status={otherUser.status as any} />
                  <div className="flex-1 min-w-0">
                    <div className={`text-[15px] truncate leading-tight ${
                      currentChannelId === dm.id ? 'text-white font-medium'
                        : isDmUnread ? 'text-white font-bold'
                        : 'text-discord-text-muted group-hover:text-discord-text-secondary font-medium'
                    }`}>
                      {otherUser.displayName ?? otherUser.username}
                    </div>
                    {dm.lastMessage && (
                      <div className="text-[12px] text-discord-channels-default truncate leading-tight mt-0.5">
                        {dm.lastMessage.content}
                      </div>
                    )}
                  </div>
                  <button
                    onClick={(e) => { e.stopPropagation(); }}
                    className="opacity-0 group-hover:opacity-100 text-discord-text-muted hover:text-discord-text-primary transition-opacity flex-shrink-0 ml-1"
                    title="Close DM"
                  >
                    <svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor">
                      <path d="M18.4 4L12 10.4L5.6 4L4 5.6L10.4 12L4 18.4L5.6 20L12 13.6L18.4 20L20 18.4L13.6 12L20 5.6L18.4 4Z" />
                    </svg>
                  </button>
                </div>
              );
            })}
            {dmChannels.length === 0 && (
              <p className="px-2 py-4 text-[13px] text-discord-text-muted italic opacity-60">No DM conversations yet.</p>
            )}
          </div>
        </div>

        {/* Voice controls — visible when in a call, even in DM view */}
        {currentVoiceChannelId && <VoiceControls />}

        {/* User area at bottom */}
        {user && (
          <UserAreaPanel
            user={user}
            isMuted={isMuted}
            isDeafened={isDeafened}
            onMicToggle={handleMicToggle}
            onDeafenToggle={handleDeafenToggle}
            onSettingsClick={() => openModal('userSettings')}
          />
        )}
      </div>
    );
  }

  return (
    <div className="w-60 bg-discord-bg-secondary flex flex-col flex-shrink-0 select-none">
      {/* Server header */}
      <button
        onClick={() => openModal('serverSettings')}
        className="h-12 px-4 flex items-center justify-between shadow-header z-10 hover:bg-discord-modifier-hover transition-colors group"
      >
        <span className="font-bold text-[16px] text-discord-text-primary truncate leading-tight">{server.name}</span>
        <svg width="18" height="18" viewBox="0 0 18 18" fill="currentColor" className="text-discord-text-muted flex-shrink-0 group-hover:text-discord-text-secondary">
          <path d="M5.293 7.293a1 1 0 011.414 0L9 9.586l2.293-2.293a1 1 0 111.414 1.414l-3 3a1 1 0 01-1.414 0l-3-3a1 1 0 010-1.414z" />
        </svg>
      </button>

      {/* Channels */}
      <div className="flex-1 overflow-y-auto pt-3 px-2 space-y-[21px] no-scrollbar">
        {/* Text Channels */}
        <div>
          <div className="flex items-center justify-between px-1 mb-1 group cursor-pointer">
            <div className="flex items-center gap-0.5 text-discord-text-muted hover:text-discord-text-secondary transition-colors">
              <svg width="12" height="12" viewBox="0 0 24 24" fill="currentColor" className="opacity-70">
                <path d="M16.59 8.59L12 13.17 7.41 8.59 6 10l6 6 6-6z" />
              </svg>
              <span className="text-[12px] font-bold uppercase tracking-wider">Text Channels</span>
            </div>
            {isAdminUser && (
              <button
                onClick={(e) => {
                  e.stopPropagation();
                  openModal('createChannel');
                }}
                className="text-discord-text-muted hover:text-discord-text-primary transition-colors"
                title="Create Channel"
              >
                <svg width="16" height="16" viewBox="0 0 16 16" fill="currentColor">
                  <path d="M8 2a.5.5 0 01.5.5v5h5a.5.5 0 010 1h-5v5a.5.5 0 01-1 0v-5h-5a.5.5 0 010-1h5v-5A.5.5 0 018 2z" />
                </svg>
              </button>
            )}
          </div>
          <div className="space-y-[2px]">
            {textChannels.map((channel) => {
              const isUnread = unreadChannels.has(channel.id) && currentChannelId !== channel.id;
              return (
                <button
                  key={channel.id}
                  onClick={() => handleChannelClick(channel.id)}
                  className={`w-full flex items-center gap-1.5 px-2 h-8 rounded-[4px] group transition-colors ${
                    currentChannelId === channel.id
                      ? 'bg-discord-modifier-selected text-white'
                      : isUnread
                        ? 'text-white hover:text-white hover:bg-discord-modifier-hover'
                        : 'text-discord-text-muted hover:text-discord-text-secondary hover:bg-discord-modifier-hover'
                  }`}
                >
                  {isUnread && (
                    <div className="absolute -left-0.5 w-1 h-2 bg-white rounded-r-full" />
                  )}
                  <svg width="20" height="20" viewBox="0 0 24 24" fill="currentColor" className="flex-shrink-0 opacity-60">
                    <path d="M5.88657 21C5.57547 21 5.3399 20.7189 5.39427 20.4126L6.00001 17H2.59511C2.28449 17 2.04905 16.7198 2.10259 16.4138L2.27759 15.4138C2.31946 15.1746 2.52722 15 2.77011 15H6.35001L7.41001 9H4.00511C3.69449 9 3.45905 8.71977 3.51259 8.41381L3.68759 7.41381C3.72946 7.17456 3.93722 7 4.18011 7H7.76001L8.39677 3.41262C8.43914 3.17391 8.64664 3 8.88907 3H9.87344C10.1845 3 10.4201 3.28107 10.3657 3.58738L9.76001 7H15.76L16.3968 3.41262C16.4391 3.17391 16.6466 3 16.8891 3H17.8734C18.1845 3 18.4201 3.28107 18.3657 3.58738L17.76 7H21.1649C21.4755 7 21.711 7.28023 21.6574 7.58619L21.4824 8.58619C21.4406 8.82544 21.2328 9 20.9899 9H17.41L16.35 15H19.7549C20.0655 15 20.301 15.2802 20.2474 15.5862L20.0724 16.5862C20.0306 16.8254 19.8228 17 19.5799 17H16L15.3632 20.5874C15.3209 20.8261 15.1134 21 14.8709 21H13.8866C13.5755 21 13.3399 20.7189 13.3943 20.4126L14 17H8.00001L7.36325 20.5874C7.32088 20.8261 7.11337 21 6.87094 21H5.88657ZM9.41001 9L8.35001 15H14.35L15.41 9H9.41001Z" />
                  </svg>
                  <span className={`truncate text-[15px] ${isUnread ? 'font-bold' : 'font-medium'}`}>{channel.name}</span>
                </button>
              );
            })}
          </div>
        </div>

        {/* Voice Channels */}
        <div>
          <div className="flex items-center justify-between px-1 mb-1 group cursor-pointer">
            <div className="flex items-center gap-0.5 text-discord-text-muted hover:text-discord-text-secondary transition-colors">
              <svg width="12" height="12" viewBox="0 0 24 24" fill="currentColor" className="opacity-70">
                <path d="M16.59 8.59L12 13.17 7.41 8.59 6 10l6 6 6-6z" />
              </svg>
              <span className="text-[12px] font-bold uppercase tracking-wider">Voice Channels</span>
            </div>
            {isAdminUser && (
              <button
                onClick={(e) => {
                  e.stopPropagation();
                  openModal('createChannel');
                }}
                className="text-discord-text-muted hover:text-discord-text-primary transition-colors"
                title="Create Channel"
              >
                <svg width="16" height="16" viewBox="0 0 16 16" fill="currentColor">
                  <path d="M8 2a.5.5 0 01.5.5v5h5a.5.5 0 010 1h-5v5a.5.5 0 01-1 0v-5h-5a.5.5 0 010-1h5v-5A.5.5 0 018 2z" />
                </svg>
              </button>
            )}
          </div>
          <div className="space-y-[2px]">
            {voiceChannels.map((channel) => (
              <VoiceChannel
                key={channel.id}
                channelId={channel.id}
                channelName={channel.name}
                onClick={() => handleVoiceJoin(channel.id)}
              />
            ))}
          </div>
        </div>

        {/* Restore Invite Button */}
        <div className="pt-2">
          <button
            onClick={() => openModal('invite')}
            className="w-full flex items-center gap-2 px-2 h-8 rounded-[4px] text-[15px] font-medium text-discord-text-muted hover:text-discord-text-secondary hover:bg-discord-modifier-hover transition-colors"
          >
            <svg width="20" height="20" viewBox="0 0 24 24" fill="currentColor" className="opacity-60">
              <path d="M13 13v5h-2v-5H6v-2h5V6h2v5h5v2h-5z" />
            </svg>
            Invite People
          </button>
        </div>
      </div>

      {/* Voice controls — VoiceControls reads state and calls LiveKit SDK directly */}
      {currentVoiceChannelId && <VoiceControls />}

      {/* User area */}
      {user && (
        <UserAreaPanel
          user={user}
          isMuted={isMuted}
          isDeafened={isDeafened}
          onMicToggle={handleMicToggle}
          onDeafenToggle={handleDeafenToggle}
          onSettingsClick={() => openModal('userSettings')}
        />
      )}
    </div>
  );
}

/* ─── User Area Panel ──────────────────────────────────────────────────────── */

function UserAreaPanel({
  user,
  isMuted,
  isDeafened,
  onMicToggle,
  onDeafenToggle,
  onSettingsClick,
}: {
  user: any;
  isMuted: boolean;
  isDeafened: boolean;
  onMicToggle: () => void;
  onDeafenToggle: () => void;
  onSettingsClick: () => void;
}) {
  const [openPanel, setOpenPanel] = useState<'input' | 'output' | null>(null);
  const [inputDevices, setInputDevices] = useState<MediaDeviceInfo[]>([]);
  const [outputDevices, setOutputDevices] = useState<MediaDeviceInfo[]>([]);
  const [selectedInput, setSelectedInput] = useState<string>('default');
  const [selectedOutput, setSelectedOutput] = useState<string>('default');
  const [selectedInputLabel, setSelectedInputLabel] = useState<string>('Default');
  const [selectedOutputLabel, setSelectedOutputLabel] = useState<string>('Default');
  const inputVolume = useVoiceStore((s) => s.inputVolume);
  const storeSetInputVolume = useVoiceStore((s) => s.setInputVolume);
  const outputVolume = useVoiceStore((s) => s.outputVolume);
  const storeSetOutputVolume = useVoiceStore((s) => s.setOutputVolume);
  const [showInputDeviceList, setShowInputDeviceList] = useState(false);
  const [showOutputDeviceList, setShowOutputDeviceList] = useState(false);
  const [micLevel, setMicLevel] = useState(0);
  const panelRef = useRef<HTMLDivElement>(null);
  const analyserRef = useRef<AnalyserNode | null>(null);
  const animFrameRef = useRef<number>(0);

  const loadDevices = useCallback(async () => {
    try {
      // Need to request permission first to get labels
      await navigator.mediaDevices.getUserMedia({ audio: true }).then(s => s.getTracks().forEach(t => t.stop()));
      const devices = await navigator.mediaDevices.enumerateDevices();
      setInputDevices(devices.filter(d => d.kind === 'audioinput'));
      setOutputDevices(devices.filter(d => d.kind === 'audiooutput'));
    } catch {
      // permission denied
    }
  }, []);

  // Start mic level monitoring when input panel opens
  useEffect(() => {
    if (openPanel !== 'input') {
      if (animFrameRef.current) cancelAnimationFrame(animFrameRef.current);
      analyserRef.current = null;
      setMicLevel(0);
      return;
    }
    let stream: MediaStream | null = null;
    let ctx: AudioContext | null = null;
    const start = async () => {
      try {
        stream = await navigator.mediaDevices.getUserMedia({ audio: { deviceId: selectedInput !== 'default' ? selectedInput : undefined } });
        ctx = new AudioContext();
        const source = ctx.createMediaStreamSource(stream);
        const analyser = ctx.createAnalyser();
        analyser.fftSize = 256;
        source.connect(analyser);
        analyserRef.current = analyser;
        const data = new Uint8Array(analyser.frequencyBinCount);
        const tick = () => {
          if (!analyserRef.current) return;
          analyserRef.current.getByteFrequencyData(data);
          const avg = data.reduce((a, b) => a + b, 0) / data.length;
          setMicLevel(Math.min(avg / 128, 1));
          animFrameRef.current = requestAnimationFrame(tick);
        };
        tick();
      } catch { /* no mic access */ }
    };
    start();
    return () => {
      if (animFrameRef.current) cancelAnimationFrame(animFrameRef.current);
      analyserRef.current = null;
      stream?.getTracks().forEach(t => t.stop());
      ctx?.close();
    };
  }, [openPanel, selectedInput]);

  useEffect(() => {
    const handleClick = (e: MouseEvent) => {
      if (panelRef.current && !panelRef.current.contains(e.target as Node)) {
        setOpenPanel(null);
        setShowInputDeviceList(false);
        setShowOutputDeviceList(false);
      }
    };
    document.addEventListener('mousedown', handleClick);
    return () => document.removeEventListener('mousedown', handleClick);
  }, []);

  const togglePanel = (panel: 'input' | 'output') => {
    if (openPanel === panel) {
      setOpenPanel(null);
    } else {
      loadDevices();
      setOpenPanel(panel);
      setShowInputDeviceList(false);
      setShowOutputDeviceList(false);
    }
  };

  const selectInput = (device: MediaDeviceInfo) => {
    setSelectedInput(device.deviceId);
    setSelectedInputLabel(device.label || 'Default');
    setShowInputDeviceList(false);
    const room = getActiveRoom();
    if (room) room.switchActiveDevice('audioinput', device.deviceId).catch(() => {});
  };

  const selectOutput = (device: MediaDeviceInfo) => {
    setSelectedOutput(device.deviceId);
    setSelectedOutputLabel(device.label || 'Default');
    setShowOutputDeviceList(false);
    const room = getActiveRoom();
    if (room) room.switchActiveDevice('audiooutput', device.deviceId).catch(() => {});
  };

  // Generate mic level bars (20 bars like Discord)
  const micBars = 20;
  const activeBars = Math.round(micLevel * micBars * (inputVolume / 100));

  return (
    <div className="relative" ref={panelRef}>
      {/* Input settings panel */}
      {openPanel === 'input' && (
        <div className="absolute bottom-full left-0 right-0 mb-0 bg-[#2b2d31] rounded-t-lg shadow-lg z-50 border-t border-x border-discord-bg-tertiary">
          {/* Input Device */}
          <div className="relative">
            <button
              onClick={() => setShowInputDeviceList(!showInputDeviceList)}
              className="w-full px-4 py-3 flex items-center justify-between hover:bg-discord-modifier-hover transition-colors"
            >
              <div className="min-w-0 flex-1">
                <div className="text-[15px] font-semibold text-discord-text-primary text-left">Input Device</div>
                <div className="text-[13px] text-discord-text-muted truncate text-left">{selectedInputLabel}</div>
              </div>
              <svg width="20" height="20" viewBox="0 0 24 24" fill="currentColor" className="text-discord-text-muted flex-shrink-0 ml-2">
                <path d="M10 6L8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z" />
              </svg>
            </button>
            {showInputDeviceList && (
              <div className="bg-discord-bg-floating rounded-lg shadow-lg mx-2 mb-2 py-1 border border-discord-bg-tertiary">
                {inputDevices.map(d => (
                  <button
                    key={d.deviceId}
                    onClick={() => selectInput(d)}
                    className={`w-full px-3 py-2 text-left text-[13px] hover:bg-discord-modifier-hover transition-colors flex items-center gap-2 ${
                      selectedInput === d.deviceId ? 'text-discord-text-primary' : 'text-discord-text-secondary'
                    }`}
                  >
                    {selectedInput === d.deviceId && (
                      <svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor" className="text-discord-blurple flex-shrink-0">
                        <path d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z" />
                      </svg>
                    )}
                    <span className={selectedInput === d.deviceId ? '' : 'pl-6'}>{d.label || 'Default'}</span>
                  </button>
                ))}
              </div>
            )}
          </div>

          <div className="mx-4 border-t border-[#3f4147]" />

          {/* Input Volume */}
          <div className="px-4 py-3">
            <div className="text-[15px] font-semibold text-discord-text-primary mb-2">Input Volume</div>
            <input
              type="range"
              min={0}
              max={200}
              value={inputVolume}
              onChange={(e) => {
                const vol = Number(e.target.value);
                storeSetInputVolume(vol);
                // Apply gain to mic: at 0 = mute, 100 = normal, 200 = 2x boost
                const room = getActiveRoom();
                if (room && room.localParticipant.isMicrophoneEnabled) {
                  if (vol === 0) {
                    room.localParticipant.setMicrophoneEnabled(false).catch(() => {});
                  } else {
                    // Re-enable mic if it was muted by volume slider
                    room.localParticipant.setMicrophoneEnabled(true).catch(() => {});
                  }
                }
              }}
              className="w-full h-1.5 rounded-full appearance-none cursor-pointer accent-discord-blurple bg-discord-bg-tertiary [&::-webkit-slider-thumb]:appearance-none [&::-webkit-slider-thumb]:w-3 [&::-webkit-slider-thumb]:h-3 [&::-webkit-slider-thumb]:rounded-full [&::-webkit-slider-thumb]:bg-white [&::-webkit-slider-thumb]:shadow-md"
              style={{
                background: `linear-gradient(to right, #5865f2 0%, #5865f2 ${inputVolume / 2}%, #4e5058 ${inputVolume / 2}%, #4e5058 100%)`,
              }}
            />
            {/* Mic level meter */}
            <div className="flex items-center gap-[3px] mt-2.5">
              {Array.from({ length: micBars }).map((_, i) => (
                <div
                  key={i}
                  className={`flex-1 h-[6px] rounded-[1px] transition-colors duration-75 ${
                    i < activeBars ? 'bg-discord-text-muted' : 'bg-[#3f4147]'
                  }`}
                />
              ))}
            </div>
          </div>

          <div className="mx-4 border-t border-[#3f4147]" />

          {/* Voice Settings link */}
          <button
            onClick={onSettingsClick}
            className="w-full px-4 py-3 flex items-center justify-between hover:bg-discord-modifier-hover transition-colors"
          >
            <span className="text-[15px] font-semibold text-discord-text-primary">Voice Settings</span>
            <svg width="20" height="20" viewBox="0 0 24 24" fill="currentColor" className="text-discord-text-muted">
              <path d="M19.14 12.94c.04-.3.06-.61.06-.94 0-.32-.02-.64-.07-.94l2.03-1.58c.18-.14.23-.41.12-.61l-1.92-3.32c-.12-.22-.37-.29-.59-.22l-2.39.96c-.5-.38-1.03-.7-1.62-.94l-.36-2.54c-.04-.24-.24-.41-.48-.41h-3.84c-.24 0-.43.17-.47.41l-.36 2.54c-.59.24-1.13.57-1.62.94l-2.39-.96c-.22-.08-.47 0-.59.22L2.74 8.87c-.12.21-.08.47.12.61l2.03 1.58c-.05.3-.07.62-.07.94s.02.64.07.94l-2.03 1.58c-.18.14-.23.41-.12.61l1.92 3.32c.12.22.37.29.59.22l2.39-.96c.5.38 1.03.7 1.62.94l.36 2.54c.05.24.24.41.48.41h3.84c.24 0 .44-.17.47-.41l.36-2.54c.59-.24 1.13-.56 1.62-.94l2.39.96c.22.08.47 0 .59-.22l1.92-3.32c.12-.22.07-.47-.12-.61l-2.01-1.58zM12 15.6c-1.98 0-3.6-1.62-3.6-3.6s1.62-3.6 3.6-3.6 3.6 1.62 3.6 3.6-1.62 3.6-3.6 3.6z" />
            </svg>
          </button>
        </div>
      )}

      {/* Output settings panel */}
      {openPanel === 'output' && (
        <div className="absolute bottom-full left-0 right-0 mb-0 bg-[#2b2d31] rounded-t-lg shadow-lg z-50 border-t border-x border-discord-bg-tertiary">
          {/* Output Device */}
          <div className="relative">
            <button
              onClick={() => setShowOutputDeviceList(!showOutputDeviceList)}
              className="w-full px-4 py-3 flex items-center justify-between hover:bg-discord-modifier-hover transition-colors"
            >
              <div className="min-w-0 flex-1">
                <div className="text-[15px] font-semibold text-discord-text-primary text-left">Output Device</div>
                <div className="text-[13px] text-discord-text-muted truncate text-left">{selectedOutputLabel}</div>
              </div>
              <svg width="20" height="20" viewBox="0 0 24 24" fill="currentColor" className="text-discord-text-muted flex-shrink-0 ml-2">
                <path d="M10 6L8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z" />
              </svg>
            </button>
            {showOutputDeviceList && (
              <div className="bg-discord-bg-floating rounded-lg shadow-lg mx-2 mb-2 py-1 border border-discord-bg-tertiary">
                {outputDevices.map(d => (
                  <button
                    key={d.deviceId}
                    onClick={() => selectOutput(d)}
                    className={`w-full px-3 py-2 text-left text-[13px] hover:bg-discord-modifier-hover transition-colors flex items-center gap-2 ${
                      selectedOutput === d.deviceId ? 'text-discord-text-primary' : 'text-discord-text-secondary'
                    }`}
                  >
                    {selectedOutput === d.deviceId && (
                      <svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor" className="text-discord-blurple flex-shrink-0">
                        <path d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z" />
                      </svg>
                    )}
                    <span className={selectedOutput === d.deviceId ? '' : 'pl-6'}>{d.label || 'Default'}</span>
                  </button>
                ))}
              </div>
            )}
          </div>

          <div className="mx-4 border-t border-[#3f4147]" />

          {/* Output Volume */}
          <div className="px-4 py-3">
            <div className="text-[15px] font-semibold text-discord-text-primary mb-2">Output Volume</div>
            <input
              type="range"
              min={0}
              max={200}
              value={outputVolume}
              onChange={(e) => {
                const vol = Number(e.target.value);
                storeSetOutputVolume(vol);
                // Apply volume to all remote participants
                const room = getActiveRoom();
                if (room) {
                  const scaled = vol / 100; // 0-2 range (0%=0, 100%=1, 200%=2)
                  room.remoteParticipants.forEach((participant) => {
                    participant.setVolume(scaled);
                  });
                }
              }}
              className="w-full h-1.5 rounded-full appearance-none cursor-pointer bg-discord-bg-tertiary [&::-webkit-slider-thumb]:appearance-none [&::-webkit-slider-thumb]:w-3 [&::-webkit-slider-thumb]:h-3 [&::-webkit-slider-thumb]:rounded-full [&::-webkit-slider-thumb]:bg-white [&::-webkit-slider-thumb]:shadow-md"
              style={{
                background: `linear-gradient(to right, #5865f2 0%, #5865f2 ${outputVolume / 2}%, #4e5058 ${outputVolume / 2}%, #4e5058 100%)`,
              }}
            />
          </div>

          <div className="mx-4 border-t border-[#3f4147]" />

          {/* Voice Settings link */}
          <button
            onClick={onSettingsClick}
            className="w-full px-4 py-3 flex items-center justify-between hover:bg-discord-modifier-hover transition-colors"
          >
            <span className="text-[15px] font-semibold text-discord-text-primary">Voice Settings</span>
            <svg width="20" height="20" viewBox="0 0 24 24" fill="currentColor" className="text-discord-text-muted">
              <path d="M19.14 12.94c.04-.3.06-.61.06-.94 0-.32-.02-.64-.07-.94l2.03-1.58c.18-.14.23-.41.12-.61l-1.92-3.32c-.12-.22-.37-.29-.59-.22l-2.39.96c-.5-.38-1.03-.7-1.62-.94l-.36-2.54c-.04-.24-.24-.41-.48-.41h-3.84c-.24 0-.43.17-.47.41l-.36 2.54c-.59.24-1.13.57-1.62.94l-2.39-.96c-.22-.08-.47 0-.59.22L2.74 8.87c-.12.21-.08.47.12.61l2.03 1.58c-.05.3-.07.62-.07.94s.02.64.07.94l-2.03 1.58c-.18.14-.23.41-.12.61l1.92 3.32c.12.22.37.29.59.22l2.39-.96c.5.38 1.03.7 1.62.94l.36 2.54c.05.24.24.41.48.41h3.84c.24 0 .44-.17.47-.41l.36-2.54c.59-.24 1.13-.56 1.62-.94l2.39.96c.22.08.47 0 .59-.22l1.92-3.32c.12-.22.07-.47-.12-.61l-2.01-1.58zM12 15.6c-1.98 0-3.6-1.62-3.6-3.6s1.62-3.6 3.6-3.6 3.6 1.62 3.6 3.6-1.62 3.6-3.6 3.6z" />
            </svg>
          </button>
        </div>
      )}

      {/* User area bar */}
      <div className="h-[52px] px-2 bg-discord-bg-user-area flex items-center select-none">
        {/* Avatar + name */}
        <div className="p-1 hover:bg-discord-modifier-hover rounded-[4px] flex items-center gap-2 flex-1 min-w-0 cursor-pointer transition-colors group">
          <Avatar src={user.avatar} name={user.displayName ?? user.username} size={32} status={user.status as any} user={user} />
          <div className="flex-1 min-w-0">
            <div className="text-[13px] font-semibold text-discord-text-primary truncate leading-tight">{user.displayName ?? user.username}</div>
            <div className="text-[11px] text-discord-text-muted truncate leading-tight group-hover:text-discord-text-secondary">@{user.username}</div>
          </div>
        </div>

        {/* Controls */}
        <div className="flex items-center">
          {/* Mic */}
          <button
            onClick={onMicToggle}
            className={`w-8 h-8 flex items-center justify-center hover:bg-discord-modifier-hover rounded-l-[4px] transition-colors ${
              isMuted ? 'text-discord-red' : 'text-discord-text-muted hover:text-discord-text-primary'
            }`}
            title={isMuted ? 'Unmute' : 'Mute'}
          >
            <svg width="20" height="20" viewBox="0 0 24 24" fill="currentColor">
              <path d="M12 14c1.66 0 3-1.34 3-3V5c0-1.66-1.34-3-3-3S9 3.34 9 5v6c0 1.66 1.34 3 3 3z" />
              <path d="M17 11c0 2.76-2.24 5-5 5s-5-2.24-5-5H5c0 3.53 2.61 6.43 6 6.92V21h2v-3.08c3.39-.49 6-3.39 6-6.92h-2z" />
              {isMuted && <line x1="3" y1="3" x2="21" y2="21" stroke="currentColor" strokeWidth="2.5" strokeLinecap="round" />}
            </svg>
          </button>
          {/* Input chevron */}
          <button
            onClick={() => togglePanel('input')}
            className={`w-[18px] h-8 flex items-center justify-center hover:bg-discord-modifier-hover rounded-r-[4px] transition-colors ${
              openPanel === 'input' ? 'text-discord-text-primary bg-discord-modifier-hover' : 'text-discord-text-muted hover:text-discord-text-primary'
            }`}
            title="Input Devices"
          >
            <svg width="10" height="10" viewBox="0 0 24 24" fill="currentColor" className={`transition-transform ${openPanel === 'input' ? 'rotate-180' : ''}`}>
              <path d="M7 10l5 5 5-5z" />
            </svg>
          </button>

          {/* Headphones */}
          <button
            onClick={onDeafenToggle}
            className={`w-8 h-8 flex items-center justify-center hover:bg-discord-modifier-hover rounded-l-[4px] transition-colors ${
              isDeafened ? 'text-discord-red' : 'text-discord-text-muted hover:text-discord-text-primary'
            }`}
            title={isDeafened ? 'Undeafen' : 'Deafen'}
          >
            <svg width="20" height="20" viewBox="0 0 24 24" fill="currentColor">
              <path d="M12 3c-4.97 0-9 4.03-9 9v7c0 1.1.9 2 2 2h2v-7H5v-2c0-3.87 3.13-7 7-7s7 3.13 7 7v2h-2v7h2c1.1 0 2-.9 2-2v-7c0-4.97-4.03-9-9-9z" />
              {isDeafened && <line x1="3" y1="3" x2="21" y2="21" stroke="currentColor" strokeWidth="2.5" strokeLinecap="round" />}
            </svg>
          </button>
          {/* Output chevron */}
          <button
            onClick={() => togglePanel('output')}
            className={`w-[18px] h-8 flex items-center justify-center hover:bg-discord-modifier-hover rounded-r-[4px] transition-colors ${
              openPanel === 'output' ? 'text-discord-text-primary bg-discord-modifier-hover' : 'text-discord-text-muted hover:text-discord-text-primary'
            }`}
            title="Output Devices"
          >
            <svg width="10" height="10" viewBox="0 0 24 24" fill="currentColor" className={`transition-transform ${openPanel === 'output' ? 'rotate-180' : ''}`}>
              <path d="M7 10l5 5 5-5z" />
            </svg>
          </button>

          {/* Settings */}
          <button
            onClick={onSettingsClick}
            className="w-8 h-8 flex items-center justify-center text-discord-text-muted hover:text-discord-text-primary hover:bg-discord-modifier-hover rounded-[4px] transition-colors"
            title="User Settings"
          >
            <svg width="20" height="20" viewBox="0 0 24 24" fill="currentColor">
              <path d="M19.14 12.94c.04-.3.06-.61.06-.94 0-.32-.02-.64-.07-.94l2.03-1.58c.18-.14.23-.41.12-.61l-1.92-3.32c-.12-.22-.37-.29-.59-.22l-2.39.96c-.5-.38-1.03-.7-1.62-.94l-.36-2.54c-.04-.24-.24-.41-.48-.41h-3.84c-.24 0-.43.17-.47.41l-.36 2.54c-.59.24-1.13.57-1.62.94l-2.39-.96c-.22-.08-.47 0-.59.22L2.74 8.87c-.12.21-.08.47.12.61l2.03 1.58c-.05.3-.07.62-.07.94s.02.64.07.94l-2.03 1.58c-.18.14-.23.41-.12.61l1.92 3.32c.12.22.37.29.59.22l2.39-.96c.5.38 1.03.7 1.62.94l.36 2.54c.05.24.24.41.48.41h3.84c.24 0 .44-.17.47-.41l.36-2.54c.59-.24 1.13-.56 1.62-.94l2.39.96c.22.08.47 0 .59-.22l1.92-3.32c.12-.22.07-.47-.12-.61l-2.01-1.58zM12 15.6c-1.98 0-3.6-1.62-3.6-3.6s1.62-3.6 3.6-3.6 3.6 1.62 3.6 3.6-1.62 3.6-3.6 3.6z" />
            </svg>
          </button>
        </div>
      </div>
    </div>
  );
}
