Merge pull request #187 from cucadmuh/feat/cli-completions-player-controls

Reviewed and merged. Clean architecture, correct D-Bus forwarding design, solid completions scripts. Minor nits noted in review (parse_cli_command called 4x, search fetches all types, 500ms sleep comment) — none blocking.

completions/README.md

@@ -0,0 +1,36 @@
+# Shell completion for `psysonic`
+
+Covers global flags (`--help`, `--info`, …), `completions …`, and `--player` commands (`next`, `audio-device …`, `library …`, `mix …`, …). Run `psysonic --help` for the full list.
+
+The same scripts are **embedded in the release binary**: run **`psysonic completions`** for install instructions, or **`psysonic completions bash` / `zsh`** to print the scripts (no repo checkout needed).
+
+## zsh
+
+Copy or symlink `_psysonic` into a directory on your `$fpath`, then reload completion:
+
+```sh
+mkdir -p ~/.zsh/completions
+ln -sf /path/to/psysonic/completions/_psysonic ~/.zsh/completions/_psysonic
+fpath=(~/.zsh/completions $fpath)
+autoload -Uz compinit && compinit
+```
+
+If you use a plugin manager, point its `fpath` at this repo’s `completions/` directory instead.
+
+## bash
+
+Source the script once (e.g. in `~/.bashrc`):
+
+```sh
+source /path/to/psysonic/completions/psysonic.bash
+```
+
+Use this only under **bash** (including macOS’s `/bin/bash` 3.2). **zsh** users should install `_psysonic` instead — do not `source` the `.bash` file in zsh.
+
+## Device names after `audio-device set`
+
+Completion can suggest IDs from `psysonic-cli-audio-devices.json` (same paths the app uses: `$XDG_RUNTIME_DIR` or `$TMPDIR`/`/tmp`). That file appears after you run **`psysonic --player audio-device list`** while the app is running. Optional: install **`jq`** for parsing that JSON in the completion scripts.
+
+## Folder ids after `library set`
+
+Same idea with **`psysonic-cli-library.json`**, produced by **`psysonic --player library list`**. Optional **`jq`** for completion of folder ids plus the literal **`all`**.

completions/_psysonic

@@ -0,0 +1,144 @@
+#compdef psysonic
+# Zsh completion for Psysonic CLI (see `psysonic --help`).
+
+_psysonic_audio_device_json() {
+  local f
+  if [[ -n $XDG_RUNTIME_DIR ]]; then
+    f="$XDG_RUNTIME_DIR/psysonic-cli-audio-devices.json"
+    [[ -r $f ]] && { print -r -- "$f"; return }
+  fi
+  f="${TMPDIR:-/tmp}/psysonic-cli-audio-devices.json"
+  [[ -r $f ]] && print -r -- "$f"
+}
+
+_psysonic_audio_device_ids() {
+  command -v jq &>/dev/null || return
+  local jf
+  jf="$(_psysonic_audio_device_json)" || return
+  local -a devs
+  devs=( ${(@f)"$(jq -r '.devices[]? | select(type == "string")' "$jf" 2>/dev/null)"} )
+  (( $#devs )) && compadd -a devs
+}
+
+_psysonic_library_json() {
+  local f
+  if [[ -n $XDG_RUNTIME_DIR ]]; then
+    f="$XDG_RUNTIME_DIR/psysonic-cli-library.json"
+    [[ -r $f ]] && { print -r -- "$f"; return }
+  fi
+  f="${TMPDIR:-/tmp}/psysonic-cli-library.json"
+  [[ -r $f ]] && print -r -- "$f"
+}
+
+_psysonic_library_folder_ids() {
+  command -v jq &>/dev/null || return
+  local jf
+  jf="$(_psysonic_library_json)" || return
+  local -a ids
+  ids=( ${(@f)"$(jq -r '.folders[]? | select(.id != null) | .id | tostring' "$jf" 2>/dev/null)"} )
+  (( $#ids )) && compadd -a ids
+}
+
+_psysonic_snapshot_json() {
+  local f
+  if [[ -n $XDG_RUNTIME_DIR ]]; then
+    f="$XDG_RUNTIME_DIR/psysonic-cli-snapshot.json"
+    [[ -r $f ]] && { print -r -- "$f"; return }
+  fi
+  f="${TMPDIR:-/tmp}/psysonic-cli-snapshot.json"
+  [[ -r $f ]] && print -r -- "$f"
+}
+
+_psysonic_server_ids() {
+  command -v jq &>/dev/null || return
+  local jf
+  jf="$(_psysonic_snapshot_json)" || return
+  local -a ids
+  ids=( ${(@f)"$(jq -r '.servers[]? | select(.id != null) | .id | tostring' "$jf" 2>/dev/null)"} )
+  (( $#ids )) && compadd -a ids
+}
+
+_psysonic_globals() {
+  compadd -J options -X 'option' -- \
+    --help --version --info --json --quiet --player completions
+}
+
+integer i pidx=0
+for (( i = 2; i < CURRENT; i++ )); do
+  [[ ${words[i]} == --player ]] && pidx=i
+done
+
+if (( pidx == 0 )); then
+  if (( CURRENT == 3 )) && [[ ${words[2]} == completions ]]; then
+    compadd help bash zsh
+    return
+  fi
+  _psysonic_globals
+  return
+fi
+
+local -a sub
+if (( pidx + 1 <= CURRENT - 1 )); then
+  sub=( ${words[pidx + 1,CURRENT - 1]} )
+else
+  sub=()
+fi
+
+integer n=${#sub[@]}
+if (( n == 0 )); then
+  compadd -J verbs -X 'player command' -- \
+    next prev play pause stop seek volume shuffle repeat mute unmute star unstar rating reload \
+    audio-device library server search mix
+  return
+fi
+
+case ${sub[1]} in
+  audio-device)
+    if (( n == 1 )); then
+      compadd list set
+    elif [[ ${sub[2]} == set ]] && (( n == 2 )); then
+      compadd default
+      _psysonic_audio_device_ids
+    fi
+    ;;
+  library)
+    if (( n == 1 )); then
+      compadd list set
+    elif [[ ${sub[2]} == set ]] && (( n == 2 )); then
+      compadd all
+      _psysonic_library_folder_ids
+    fi
+    ;;
+  mix)
+    (( n == 1 )) && compadd append new
+    ;;
+  server)
+    if (( n == 1 )); then
+      compadd list set
+    elif [[ ${sub[2]} == set ]] && (( n == 2 )); then
+      _psysonic_server_ids
+    fi
+    ;;
+  search)
+    if (( n == 1 )); then
+      compadd track album artist
+    elif (( n >= 2 )); then
+      _message -e descriptions 'search query'
+    fi
+    ;;
+  repeat)
+    (( n == 1 )) && compadd off all one
+    ;;
+  rating)
+    (( n == 1 )) && compadd 0 1 2 3 4 5
+    ;;
+  seek)
+    (( n == 1 )) && _message -e descriptions 'integer delta (seconds, e.g. -5)'
+    ;;
+  volume)
+    (( n == 1 )) && _message -e descriptions 'percent 0–100'
+    ;;
+  play)
+    (( n == 1 )) && _message -e descriptions 'Subsonic id (song, album, or artist)'
+    ;;
+esac

completions/psysonic.bash

@@ -0,0 +1,167 @@
+# bash completion for Psysonic (see `psysonic --help`).
+# Install: source /path/to/completions/psysonic.bash
+# Optional: jq + prior `psysonic --player audio-device list` for device name completion.
+#
+# Uses no `mapfile` so bash 3.2 (macOS default) works.
+#
+# compopt is bash-only (programmable completion). Guard so sourcing this file
+# under zsh or plain sh does not print "command not found: compopt".
+
+_psysonic_compopt() {
+  command -v compopt &>/dev/null || return 0
+  compopt "$@" 2>/dev/null || return 0
+}
+
+_psysonic_compreply_from_compgen() {
+  # $1 = compgen -W word list, $2 = current word
+  COMPREPLY=()
+  local line
+  while IFS= read -r line; do
+    [[ -n $line ]] && COMPREPLY+=("$line")
+  done < <(compgen -W "$1" -- "$2")
+}
+
+_psysonic_audio_device_json() {
+  local f
+  if [[ -n ${XDG_RUNTIME_DIR:-} ]]; then
+    f="$XDG_RUNTIME_DIR/psysonic-cli-audio-devices.json"
+    [[ -r $f ]] && { printf '%s' "$f"; return; }
+  fi
+  f="${TMPDIR:-/tmp}/psysonic-cli-audio-devices.json"
+  [[ -r $f ]] && printf '%s' "$f"
+}
+
+_psysonic_library_json() {
+  local f
+  if [[ -n ${XDG_RUNTIME_DIR:-} ]]; then
+    f="$XDG_RUNTIME_DIR/psysonic-cli-library.json"
+    [[ -r $f ]] && { printf '%s' "$f"; return; }
+  fi
+  f="${TMPDIR:-/tmp}/psysonic-cli-library.json"
+  [[ -r $f ]] && printf '%s' "$f"
+}
+
+_psysonic_snapshot_json() {
+  local f
+  if [[ -n ${XDG_RUNTIME_DIR:-} ]]; then
+    f="$XDG_RUNTIME_DIR/psysonic-cli-snapshot.json"
+    [[ -r $f ]] && { printf '%s' "$f"; return; }
+  fi
+  f="${TMPDIR:-/tmp}/psysonic-cli-snapshot.json"
+  [[ -r $f ]] && printf '%s' "$f"
+}
+
+_psysonic_complete() {
+  local cur
+  cur="${COMP_WORDS[COMP_CWORD]}"
+
+  local i pidx=0
+  for (( i = 1; i < COMP_CWORD; i++ )); do
+    [[ ${COMP_WORDS[i]} == --player ]] && pidx=$i
+  done
+
+  if (( pidx == 0 )); then
+    if [[ ${COMP_WORDS[1]} == completions && COMP_CWORD -eq 2 ]]; then
+      _psysonic_compreply_from_compgen 'help bash zsh' "$cur"
+      return
+    fi
+    _psysonic_compreply_from_compgen '--help --version --info --json --quiet --player completions' "$cur"
+    return
+  fi
+
+  local -a sub=()
+  for (( i = pidx + 1; i < COMP_CWORD; i++ )); do
+    sub+=("${COMP_WORDS[i]}")
+  done
+  local n=${#sub[@]}
+
+  if (( n == 0 )); then
+    _psysonic_compreply_from_compgen 'next prev play pause stop seek volume shuffle repeat mute unmute star unstar rating reload audio-device library server search mix' "$cur"
+    return
+  fi
+
+  case ${sub[0]} in
+    audio-device)
+      if (( n == 1 )); then
+        _psysonic_compreply_from_compgen 'list set' "$cur"
+      elif [[ ${sub[1]} == set ]] && (( n == 2 )); then
+        COMPREPLY=()
+        local jf d
+        jf="$(_psysonic_audio_device_json)"
+        if [[ -n $jf ]] && command -v jq &>/dev/null; then
+          while IFS= read -r d; do
+            [[ -n $d && $d == "$cur"* ]] && COMPREPLY+=("$d")
+          done < <(jq -r '.devices[]? | select(type == "string")' "$jf" 2>/dev/null)
+        fi
+        while IFS= read -r line; do
+          [[ -n $line ]] && COMPREPLY+=("$line")
+        done < <(compgen -W 'default' -- "$cur")
+        ((${#COMPREPLY[@]})) && _psysonic_compopt -o filenames
+      fi
+      ;;
+    library)
+      if (( n == 1 )); then
+        _psysonic_compreply_from_compgen 'list set' "$cur"
+      elif [[ ${sub[1]} == set ]] && (( n == 2 )); then
+        COMPREPLY=()
+        local jf id line
+        jf="$(_psysonic_library_json)"
+        if [[ -n $jf ]] && command -v jq &>/dev/null; then
+          while IFS= read -r id; do
+            [[ -n $id && $id == "$cur"* ]] && COMPREPLY+=("$id")
+          done < <(jq -r '.folders[]? | select(.id != null) | .id | tostring' "$jf" 2>/dev/null)
+        fi
+        while IFS= read -r line; do
+          [[ -n $line ]] && COMPREPLY+=("$line")
+        done < <(compgen -W 'all' -- "$cur")
+        ((${#COMPREPLY[@]})) && _psysonic_compopt -o filenames
+      fi
+      ;;
+    mix)
+      (( n == 1 )) && _psysonic_compreply_from_compgen 'append new' "$cur"
+      ;;
+    server)
+      if (( n == 1 )); then
+        _psysonic_compreply_from_compgen 'list set' "$cur"
+      elif [[ ${sub[1]} == set ]] && (( n == 2 )); then
+        COMPREPLY=()
+        local jf sid
+        jf="$(_psysonic_snapshot_json)"
+        if [[ -n $jf ]] && command -v jq &>/dev/null; then
+          while IFS= read -r sid; do
+            [[ -n $sid && $sid == "$cur"* ]] && COMPREPLY+=("$sid")
+          done < <(jq -r '.servers[]? | select(.id != null) | .id | tostring' "$jf" 2>/dev/null)
+        fi
+        ((${#COMPREPLY[@]})) && _psysonic_compopt -o filenames
+      fi
+      ;;
+    search)
+      if (( n == 1 )); then
+        _psysonic_compreply_from_compgen 'track album artist' "$cur"
+      elif (( n >= 2 )); then
+        _psysonic_compopt -o default
+        COMPREPLY=()
+      fi
+      ;;
+    repeat)
+      (( n == 1 )) && _psysonic_compreply_from_compgen 'off all one' "$cur"
+      ;;
+    rating)
+      (( n == 1 )) && _psysonic_compreply_from_compgen '0 1 2 3 4 5' "$cur"
+      ;;
+    seek|volume)
+      if (( n == 1 )); then
+        _psysonic_compopt -o default
+        COMPREPLY=()
+      fi
+      ;;
+    play)
+      if (( n == 1 )); then
+        _psysonic_compopt -o default
+        COMPREPLY=()
+      fi
+      ;;
+  esac
+}
+
+complete -F _psysonic_complete psysonic

src-tauri/Cargo.lock

@@ -3615,6 +3615,7 @@ dependencies = [
  "tokio",
  "url",
  "windows 0.58.0",
+ "zbus 5.14.0",
 ]
 
 [[package]]

src-tauri/Cargo.toml

@@ -52,6 +52,9 @@ symphonia-adapter-libopus = "0.2.7"
 [target.'cfg(unix)'.dependencies]
 libc = "0.2"
 
+[target.'cfg(target_os = "linux")'.dependencies]
+zbus = { version = "5.9", default-features = false, features = ["blocking-api"] }
+
 [target.'cfg(windows)'.dependencies]
 windows = { version = "0.58", features = [
     "Win32_Foundation",

src-tauri/src/audio.rs

@@ -1473,7 +1473,7 @@ pub struct AudioEngine {
     pub eq_gains: Arc<[AtomicU32; 10]>,
     pub eq_enabled: Arc<AtomicBool>,
     pub eq_pre_gain: Arc<AtomicU32>,
-    pub preloaded: Arc<Mutex<Option<PreloadedTrack>>>,
+    pub(crate) preloaded: Arc<Mutex<Option<PreloadedTrack>>>,
     pub crossfade_enabled: Arc<AtomicBool>,
     pub crossfade_secs: Arc<AtomicU32>,
     pub fading_out_sink: Arc<Mutex<Option<Sink>>>,
@@ -1482,7 +1482,7 @@ pub struct AudioEngine {
     pub gapless_enabled: Arc<AtomicBool>,
     /// Info about the next-up chained track (gapless mode).
     /// The progress task reads this when `current_source_done` fires.
-    pub chained_info: Arc<Mutex<Option<ChainedInfo>>>,
+    pub(crate) chained_info: Arc<Mutex<Option<ChainedInfo>>>,
     /// Atomic sample counter — incremented by CountingSource in the audio thread.
     /// Progress task reads this for drift-free position tracking.
     pub samples_played: Arc<AtomicU64>,
@@ -1495,7 +1495,7 @@ pub struct AudioEngine {
     pub gapless_switch_at: Arc<AtomicU64>,
     /// Active radio session state.  None for regular (non-radio) tracks.
     /// Dropping the value aborts the HTTP download task via RadioLiveState::Drop.
-    pub radio_state: Mutex<Option<RadioLiveState>>,
+    pub(crate) radio_state: Mutex<Option<RadioLiveState>>,
 }
 
 pub struct AudioCurrent {
@@ -3026,6 +3026,17 @@ pub fn audio_canonicalize_selected_device(state: State<'_, AudioEngine>) -> Opti
     Some(canon)
 }
 
+/// Same device list as [`audio_list_devices`] without the Tauri `State` wrapper (CLI / single-instance).
+pub fn audio_list_devices_for_engine(engine: &AudioEngine) -> Vec<String> {
+    let mut list = enumerate_output_device_names();
+    if let Some(ref name) = *engine.selected_device.lock().unwrap() {
+        if !name.is_empty() && !output_enumeration_includes_pinned(&list, name) {
+            list.push(name.clone());
+        }
+    }
+    list
+}
+
 /// Returns the names of all available audio output devices on the current host.
 /// On Linux, ALSA probes unavailable backends (JACK, OSS, dmix) and prints errors to
 /// stderr. We suppress fd 2 for the duration of enumeration to keep the terminal clean.
@@ -3034,13 +3045,7 @@ pub fn audio_canonicalize_selected_device(state: State<'_, AudioEngine>) -> Opti
 /// streaming) so the Settings dropdown still matches `audioOutputDevice`.
 #[tauri::command]
 pub fn audio_list_devices(state: State<'_, AudioEngine>) -> Vec<String> {
-    let mut list = enumerate_output_device_names();
-    if let Some(ref name) = *state.selected_device.lock().unwrap() {
-        if !name.is_empty() && !output_enumeration_includes_pinned(&list, name) {
-            list.push(name.clone());
-        }
-    }
-    list
+    audio_list_devices_for_engine(&state)
 }
 
 /// Device id string for the host default output (matches an entry from `audio_list_devices` when present).

src-tauri/src/lib.rs

@@ -2,6 +2,7 @@
 #![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
 
 mod audio;
+pub mod cli;
 mod discord;
 #[cfg(target_os = "windows")]
 mod taskbar_win;
@@ -45,6 +46,30 @@ fn exit_app(app_handle: tauri::AppHandle) {
     app_handle.exit(0);
 }
 
+/// Writes `psysonic-cli-snapshot.json` for `psysonic --info` (debounced from the frontend).
+#[tauri::command]
+fn cli_publish_player_snapshot(snapshot: serde_json::Value) -> Result<(), String> {
+    crate::cli::write_cli_snapshot(&snapshot)
+}
+
+/// Writes `psysonic-cli-library.json` for `psysonic --player library list`.
+#[tauri::command]
+fn cli_publish_library_list(payload: serde_json::Value) -> Result<(), String> {
+    crate::cli::write_library_cli_response(&payload)
+}
+
+/// Writes `psysonic-cli-servers.json` for `psysonic --player server list`.
+#[tauri::command]
+fn cli_publish_server_list(payload: serde_json::Value) -> Result<(), String> {
+    crate::cli::write_server_list_cli_response(&payload)
+}
+
+/// Writes `psysonic-cli-search.json` for `psysonic --player search …`.
+#[tauri::command]
+fn cli_publish_search_results(payload: serde_json::Value) -> Result<(), String> {
+    crate::cli::write_search_cli_response(&payload)
+}
+
 /// Toggle native window decorations at runtime (Linux custom title bar opt-out).
 #[tauri::command]
 fn set_window_decorations(enabled: bool, app_handle: tauri::AppHandle) {
@@ -2096,6 +2121,30 @@ fn build_tray_icon(app: &tauri::AppHandle) -> tauri::Result<TrayIcon> {
         .build(app)
 }
 
+/// Creates the tray icon, or `None` if the OS cannot host one.
+///
+/// On Linux, `libayatana-appindicator3` / `libappindicator3` may be absent (minimal
+/// installs, wrong `LD_LIBRARY_PATH`). The `tray-icon` stack can **panic** on `dlopen`
+/// failure instead of returning `Err`, so we catch unwind and keep the app running
+/// (e.g. cold start with `--player` still works without tray libraries).
+fn try_build_tray_icon(app: &tauri::AppHandle) -> Option<TrayIcon> {
+    let app = app.clone();
+    match std::panic::catch_unwind(std::panic::AssertUnwindSafe(|| build_tray_icon(&app))) {
+        Ok(Ok(tray)) => Some(tray),
+        Ok(Err(e)) => {
+            eprintln!("[Psysonic] System tray unavailable: {e}");
+            None
+        }
+        Err(_) => {
+            eprintln!(
+                "[Psysonic] System tray unavailable — missing libayatana-appindicator3 or libappindicator3 \
+                 (install the distro package or set LD_LIBRARY_PATH)"
+            );
+            None
+        }
+    }
+}
+
 /// Show (`true`) or fully remove (`false`) the system-tray icon.
 ///
 /// The command is strictly idempotent:
@@ -2119,7 +2168,12 @@ fn toggle_tray_icon(
         if guard.is_some() {
             return Ok(());
         }
-        *guard = Some(build_tray_icon(&app).map_err(|e| e.to_string())?);
+        let Some(tray) = try_build_tray_icon(&app) else {
+            return Err(
+                "Tray icon could not be created (missing system libraries on Linux).".into(),
+            );
+        };
+        *guard = Some(tray);
     } else if let Some(tray) = guard.take() {
         // Hide synchronously before dropping so the OS processes the removal
         // before any subsequent show=true call can create a new icon.
@@ -2199,6 +2253,23 @@ fn is_tiling_wm_cmd() -> bool {
 }
 
 pub fn run() {
+    let argv: Vec<String> = std::env::args().collect();
+
+    // Linux: second `psysonic --player …` forwards over D-Bus before heavy startup.
+    #[cfg(target_os = "linux")]
+    {
+        if crate::cli::parse_cli_command(&argv).is_some() {
+            match crate::cli::linux_try_forward_player_cli_secondary(&argv) {
+                Ok(crate::cli::LinuxPlayerForwardResult::Forwarded) => std::process::exit(0),
+                Ok(crate::cli::LinuxPlayerForwardResult::ContinueStartup) => {}
+                Err(msg) => {
+                    eprintln!("NOT OK: {msg}");
+                    std::process::exit(1);
+                }
+            }
+        }
+    }
+
     let (audio_engine, _audio_thread) = audio::create_engine();
 
     tauri::Builder::default()
@@ -2214,11 +2285,13 @@ pub fn run() {
         .plugin(tauri_plugin_store::Builder::default().build())
         .plugin(tauri_plugin_dialog::init())
         .plugin(tauri_plugin_fs::init())
-        .plugin(tauri_plugin_single_instance::init(|app, _args, _cwd| {
-            let window = app.get_webview_window("main").expect("no main window");
-            let _ = window.show();
-            let _ = window.unminimize();
-            let _ = window.set_focus();
+        .plugin(tauri_plugin_single_instance::init(|app, argv, _cwd| {
+            if !crate::cli::handle_cli_on_primary_instance(app, &argv) {
+                let window = app.get_webview_window("main").expect("no main window");
+                let _ = window.show();
+                let _ = window.unminimize();
+                let _ = window.set_focus();
+            }
         }))
 
         .setup(|app| {
@@ -2235,11 +2308,13 @@ pub fn run() {
             }
 
             // ── System tray ───────────────────────────────────────────────
-            // Always build on startup; the frontend calls toggle_tray_icon(false)
+            // Always build on startup when possible; the frontend calls toggle_tray_icon(false)
             // immediately after load if the user has disabled the tray icon.
+            // May be skipped if Ayatana/AppIndicator libraries are missing (no panic).
             {
-                let tray = build_tray_icon(app.handle())?;
-                *app.state::<TrayState>().lock().unwrap() = Some(tray);
+                if let Some(tray) = try_build_tray_icon(app.handle()) {
+                    *app.state::<TrayState>().lock().unwrap() = Some(tray);
+                }
             }
 
             // ── MPRIS2 / OS media controls via souvlaki ──────────────────
@@ -2350,6 +2425,9 @@ pub fn run() {
                 audio::start_device_watcher(&engine, app.handle().clone());
             }
 
+            // Cold start with `--player …`: defer emit so the webview can register listeners.
+            crate::cli::spawn_deferred_cli_argv_handler(app.handle());
+
             Ok(())
         })
         .on_window_event(|window, event| {
@@ -2378,6 +2456,10 @@ pub fn run() {
             greet,
             calculate_sync_payload,
             exit_app,
+            cli_publish_player_snapshot,
+            cli_publish_library_list,
+            cli_publish_server_list,
+            cli_publish_search_results,
             set_window_decorations,
             no_compositing_mode,
             is_tiling_wm_cmd,

src-tauri/src/main.rs

@@ -13,5 +13,24 @@ fn main() {
             std::env::set_var("WEBKIT_DISABLE_COMPOSITING_MODE", "1");
         }
     }
+
+    let args: Vec<String> = std::env::args().collect();
+    if psysonic_lib::cli::wants_version(&args) {
+        psysonic_lib::cli::print_version();
+        return;
+    }
+    if psysonic_lib::cli::wants_help(&args) {
+        psysonic_lib::cli::print_help(
+            args.first().map(|s| s.as_str()).unwrap_or("psysonic"),
+        );
+        return;
+    }
+    if let Some(code) = psysonic_lib::cli::try_completions_dispatch(&args) {
+        std::process::exit(code);
+    }
+    if psysonic_lib::cli::wants_info(&args) {
+        psysonic_lib::cli::run_info_and_exit(&args);
+    }
+
     psysonic_lib::run();
 }

src/App.tsx

@@ -58,10 +58,22 @@ import { IS_LINUX } from './utils/platform';
 import { version } from '../package.json';
 import { useConnectionStatus } from './hooks/useConnectionStatus';
 import { useAuthStore } from './store/authStore';
-import { getMusicFolders, probeEntityRatingSupport } from './api/subsonic';
+import {
+  getMusicFolders,
+  getSimilarSongs,
+  getSong,
+  probeEntityRatingSupport,
+  search as subsonicSearch,
+  setRating,
+  star,
+  unstar,
+} from './api/subsonic';
 import { useOfflineStore } from './store/offlineStore';
 import { initHotCachePrefetch } from './hotCachePrefetch';
-import { usePlayerStore, initAudioListeners } from './store/playerStore';
+import i18n from './i18n';
+import { playByOpaqueId } from './utils/playByOpaqueId';
+import { switchActiveServer } from './utils/switchActiveServer';
+import { usePlayerStore, initAudioListeners, songToTrack, shuffleArray } from './store/playerStore';
 import { useThemeStore } from './store/themeStore';
 import { useThemeScheduler } from './hooks/useThemeScheduler';
 import { useFontStore } from './store/fontStore';
@@ -71,6 +83,9 @@ import { useGlobalShortcutsStore } from './store/globalShortcutsStore';
 import { useZipDownloadStore } from './store/zipDownloadStore';
 import ZipDownloadOverlay from './components/ZipDownloadOverlay';
 
+/** Volume before last `psysonic --player mute` (CLI only; in-memory). */
+let cliPremuteVolume: number | null = null;
+
 function RequireAuth({ children }: { children: React.ReactNode }) {
   const { isLoggedIn, servers, activeServerId } = useAuthStore();
   if (!isLoggedIn || !activeServerId || servers.length === 0) return <Navigate to="/login" replace />;
@@ -453,6 +468,261 @@ function TauriEventBridge() {
     return () => { unlisten?.(); };
   }, []);
 
+  // CLI: `--player audio-device set …` (forwarded on Linux via single-instance).
+  useEffect(() => {
+    let unlisten: (() => void) | undefined;
+    listen<string>('cli:audio-device-set', async e => {
+      const raw = typeof e.payload === 'string' ? e.payload : '';
+      const deviceName = raw.length > 0 ? raw : null;
+      try {
+        await invoke('audio_set_device', { deviceName });
+        useAuthStore.getState().setAudioOutputDevice(deviceName);
+      } catch {
+        /* device open failed — do not persist (same as Settings) */
+      }
+    }).then(u => { unlisten = u; });
+    return () => { unlisten?.(); };
+  }, []);
+
+  // CLI: `--player mix append|new` from the currently playing track.
+  useEffect(() => {
+    let unlisten: (() => void) | undefined;
+    listen<string>('cli:instant-mix', async e => {
+      const mode = e.payload === 'append' ? 'append' : 'new';
+      const state = usePlayerStore.getState();
+      const song = state.currentTrack;
+      if (!song) {
+        showToast(i18n.t('contextMenu.cliMixNeedsTrack'), 5000, 'error');
+        return;
+      }
+      const serverId = useAuthStore.getState().activeServerId;
+      try {
+        const similar = await getSimilarSongs(song.id, 50);
+        if (serverId) useAuthStore.getState().setAudiomuseNavidromeIssue(serverId, false);
+        const base = similar.filter(s => s.id !== song.id).map(s => songToTrack(s));
+        if (mode === 'append') {
+          const toAdd = shuffleArray(base.map(t => ({ ...t, autoAdded: true as const })));
+          if (toAdd.length > 0) usePlayerStore.getState().enqueue(toAdd);
+        } else {
+          // New queue from seed: collapse to [song] first, then radio tail (not append onto old queue).
+          usePlayerStore.getState().reseedQueueForInstantMix(song);
+          const shuffled = shuffleArray(
+            base.map(t => ({ ...t, radioAdded: true as const })),
+          );
+          if (shuffled.length > 0) {
+            const aid = song.artistId?.trim() || undefined;
+            usePlayerStore.getState().enqueueRadio(shuffled, aid);
+          }
+        }
+      } catch (err) {
+        console.error('CLI instant mix failed', err);
+        if (serverId) useAuthStore.getState().setAudiomuseNavidromeIssue(serverId, true);
+        showToast(i18n.t('contextMenu.instantMixFailed'), 5000, 'error');
+      }
+    }).then(u => { unlisten = u; });
+    return () => { unlisten?.(); };
+  }, []);
+
+  // CLI: `--player library list` (Rust polls the JSON file) / `library set`.
+  useEffect(() => {
+    let u1: (() => void) | undefined;
+    let u2: (() => void) | undefined;
+    listen('cli:library-list', async () => {
+      try {
+        const folders = await getMusicFolders();
+        const auth = useAuthStore.getState();
+        const sid = auth.activeServerId;
+        const selected = sid ? (auth.musicLibraryFilterByServer[sid] ?? 'all') : 'all';
+        await invoke('cli_publish_library_list', {
+          payload: {
+            folders: folders.map(f => ({ id: f.id, name: f.name })),
+            selected,
+            active_server_id: sid,
+          },
+        });
+      } catch (e) {
+        console.error('CLI library list failed', e);
+        await invoke('cli_publish_library_list', {
+          payload: { folders: [], selected: 'all', active_server_id: null },
+        }).catch(() => {});
+      }
+    }).then(u => { u1 = u; });
+    listen<string>('cli:library-set', e => {
+      const raw = typeof e.payload === 'string' ? e.payload : '';
+      if (raw === 'all') useAuthStore.getState().setMusicLibraryFilter('all');
+      else if (raw.length > 0) useAuthStore.getState().setMusicLibraryFilter(raw);
+    }).then(u => { u2 = u; });
+    return () => {
+      u1?.();
+      u2?.();
+    };
+  }, []);
+
+  // CLI: servers, search, transport extras, mute, star, rating, play-by-id, reload.
+  useEffect(() => {
+    const unsubs: Array<() => void> = [];
+    listen('cli:server-list', async () => {
+      const auth = useAuthStore.getState();
+      await invoke('cli_publish_server_list', {
+        payload: {
+          active_server_id: auth.activeServerId,
+          servers: auth.servers.map(s => ({ id: s.id, name: s.name })),
+        },
+      });
+    }).then(u => unsubs.push(u));
+    listen<string>('cli:server-set', async e => {
+      const raw = typeof e.payload === 'string' ? e.payload : '';
+      const id = raw.trim();
+      if (!id) return;
+      const server = useAuthStore.getState().servers.find(s => s.id === id);
+      if (!server) {
+        showToast(i18n.t('contextMenu.cliServerNotFound', { defaultValue: 'Server id not found.' }), 4000, 'error');
+        return;
+      }
+      const ok = await switchActiveServer(server);
+      if (!ok) {
+        showToast(i18n.t('contextMenu.cliServerSwitchFailed', { defaultValue: 'Could not switch server (ping failed).' }), 5000, 'error');
+      }
+    }).then(u => unsubs.push(u));
+    listen<{ scope: string; query: string }>('cli:search', async e => {
+      const { scope, query } = e.payload;
+      const base = { scope, query, ready: false };
+      try {
+        const r = await subsonicSearch(query, { songCount: 50, albumCount: 30, artistCount: 30 });
+        const payload =
+          scope === 'track'
+            ? {
+                ...base,
+                songs: r.songs.map(s => ({ id: s.id, title: s.title, artist: s.artist })),
+                albums: [] as { id: string; name: string; artist: string }[],
+                artists: [] as { id: string; name: string }[],
+                ready: true,
+              }
+            : scope === 'album'
+              ? {
+                  ...base,
+                  songs: [] as { id: string; title: string; artist: string }[],
+                  albums: r.albums.map(a => ({ id: a.id, name: a.name, artist: a.artist })),
+                  artists: [] as { id: string; name: string }[],
+                  ready: true,
+                }
+              : {
+                  ...base,
+                  songs: [] as { id: string; title: string; artist: string }[],
+                  albums: [] as { id: string; name: string; artist: string }[],
+                  artists: r.artists.map(a => ({ id: a.id, name: a.name })),
+                  ready: true,
+                };
+        await invoke('cli_publish_search_results', { payload });
+      } catch (err) {
+        console.error('CLI search failed', err);
+        await invoke('cli_publish_search_results', {
+          payload: {
+            ...base,
+            songs: [],
+            albums: [],
+            artists: [],
+            ready: true,
+            error: err instanceof Error ? err.message : 'search failed',
+          },
+        }).catch(() => {});
+      }
+    }).then(u => unsubs.push(u));
+    listen<string>('cli:play-id', async e => {
+      const id = typeof e.payload === 'string' ? e.payload.trim() : '';
+      if (!id) return;
+      try {
+        await playByOpaqueId(id);
+      } catch (err) {
+        console.error('CLI play failed', err);
+        const notFound = err instanceof Error && err.message === 'play_by_id_not_found';
+        showToast(
+          i18n.t('contextMenu.cliPlayIdNotFound', {
+            defaultValue: notFound
+              ? 'No song, album, or artist matches this id.'
+              : 'Could not start playback.',
+          }),
+          5000,
+          'error',
+        );
+      }
+    }).then(u => unsubs.push(u));
+    listen('cli:shuffle-queue', () => {
+      usePlayerStore.getState().shuffleQueue();
+    }).then(u => unsubs.push(u));
+    listen<string>('cli:set-repeat', e => {
+      const m = typeof e.payload === 'string' ? e.payload : '';
+      const mode = m === 'all' ? 'all' : m === 'one' ? 'one' : 'off';
+      usePlayerStore.setState({ repeatMode: mode });
+    }).then(u => unsubs.push(u));
+    listen('cli:mute', () => {
+      const { volume, setVolume } = usePlayerStore.getState();
+      if (volume > 0) cliPremuteVolume = volume;
+      setVolume(0);
+    }).then(u => unsubs.push(u));
+    listen('cli:unmute', () => {
+      const restore = cliPremuteVolume ?? 0.8;
+      cliPremuteVolume = null;
+      usePlayerStore.getState().setVolume(restore);
+    }).then(u => unsubs.push(u));
+    listen<boolean>('cli:star-current', async e => {
+      const want = e.payload === true;
+      const track = usePlayerStore.getState().currentTrack;
+      if (!track) {
+        showToast(i18n.t('contextMenu.cliMixNeedsTrack'), 5000, 'error');
+        return;
+      }
+      try {
+        if (want) {
+          await star(track.id, 'song');
+          usePlayerStore.getState().setStarredOverride(track.id, true);
+        } else {
+          await unstar(track.id, 'song');
+          usePlayerStore.getState().setStarredOverride(track.id, false);
+        }
+      } catch (err) {
+        console.error('CLI star failed', err);
+        showToast(i18n.t('contextMenu.cliStarFailed', { defaultValue: 'Star/unstar failed.' }), 5000, 'error');
+      }
+    }).then(u => unsubs.push(u));
+    listen<number>('cli:set-rating-current', async e => {
+      const stars = e.payload;
+      if (typeof stars !== 'number' || Number.isNaN(stars) || stars < 0 || stars > 5) return;
+      const track = usePlayerStore.getState().currentTrack;
+      if (!track) {
+        showToast(i18n.t('contextMenu.cliMixNeedsTrack'), 5000, 'error');
+        return;
+      }
+      try {
+        await setRating(track.id, stars);
+        usePlayerStore.getState().setUserRatingOverride(track.id, stars);
+      } catch (err) {
+        console.error('CLI set rating failed', err);
+      }
+    }).then(u => unsubs.push(u));
+    listen('cli:reload-player', async () => {
+      const store = usePlayerStore.getState();
+      const { currentTrack, queue, stop, resetAudioPause, playTrack, initializeFromServerQueue } = store;
+      stop();
+      resetAudioPause();
+      await invoke('audio_stop').catch(() => {});
+      if (currentTrack) {
+        try {
+          const fresh = await getSong(currentTrack.id);
+          const t = fresh ? songToTrack(fresh) : currentTrack;
+          playTrack(t, queue, true);
+        } catch {
+          playTrack(currentTrack, queue, true);
+        }
+      } else {
+        await initializeFromServerQueue();
+      }
+    }).then(u => unsubs.push(u));
+    return () => {
+      unsubs.forEach(u => u());
+    };
+  }, []);
+
   // Sync tray-icon visibility with the user's stored setting.
   // Runs once on mount (initial sync) and again whenever the setting changes.
   const showTrayIcon = useAuthStore(s => s.showTrayIcon);
@@ -524,11 +794,14 @@ function TauriEventBridge() {
     const setup = async () => {
       const handlers: Array<[string, () => void]> = [
         ['media:play-pause',  () => togglePlay()],
+        ['media:play',        () => { const s = usePlayerStore.getState(); if (!s.isPlaying) s.resume(); }],
+        ['media:pause',       () => { const s = usePlayerStore.getState(); if (s.isPlaying) s.pause(); }],
         ['media:next',        () => next()],
         ['media:prev',        () => previous()],
         ['tray:play-pause',   () => togglePlay()],
         ['tray:next',         () => next()],
         ['tray:previous',     () => previous()],
+        ['media:stop',        () => usePlayerStore.getState().stop()],
         ['media:volume-up',   () => { const s = usePlayerStore.getState(); s.setVolume(Math.min(1, s.volume + 0.05)); }],
         ['media:volume-down', () => { const s = usePlayerStore.getState(); s.setVolume(Math.max(0, s.volume - 0.05)); }],
       ];
@@ -559,6 +832,15 @@ function TauriEventBridge() {
         if (cancelled) { u(); return; }
         unlisten.push(u);
       }
+      {
+        const u = await listen<number>('media:set-volume', e => {
+          const p = e.payload;
+          if (typeof p !== 'number' || Number.isNaN(p)) return;
+          usePlayerStore.getState().setVolume(Math.min(1, Math.max(0, p / 100)));
+        });
+        if (cancelled) { u(); return; }
+        unlisten.push(u);
+      }
 
       // window:close-requested is emitted by Rust (prevent_close + emit).
       // JS decides: minimize to tray or exit, based on user setting.
@@ -577,6 +859,59 @@ function TauriEventBridge() {
     return () => { cancelled = true; unlisten.forEach(u => u()); };
   }, [togglePlay, next, previous]);
 
+  // `psysonic --info`: JSON snapshot under XDG_RUNTIME_DIR (Rust writes atomically).
+  useEffect(() => {
+    let tid: ReturnType<typeof setTimeout> | undefined;
+    const publish = () => {
+      const s = usePlayerStore.getState();
+      const auth = useAuthStore.getState();
+      const sid = auth.activeServerId;
+      const selected = sid ? (auth.musicLibraryFilterByServer[sid] ?? 'all') : 'all';
+      const ct = s.currentTrack;
+      const currentTrackUserRating =
+        ct != null ? (s.userRatingOverrides[ct.id] ?? ct.userRating ?? null) : null;
+      const currentTrackStarred =
+        ct != null
+          ? (ct.id in s.starredOverrides ? s.starredOverrides[ct.id] : Boolean(ct.starred))
+          : null;
+      const snapshot = {
+        current_track: s.currentTrack,
+        current_radio: s.currentRadio,
+        queue: s.queue,
+        queue_index: s.queueIndex,
+        queue_length: s.queue.length,
+        is_playing: s.isPlaying,
+        current_time: s.currentTime,
+        volume: s.volume,
+        repeat_mode: s.repeatMode,
+        current_track_user_rating: currentTrackUserRating,
+        current_track_starred: currentTrackStarred,
+        servers: auth.servers.map(({ id, name }) => ({ id, name })),
+        music_library: {
+          active_server_id: sid,
+          selected,
+          folders: auth.musicFolders.map(f => ({ id: f.id, name: f.name })),
+        },
+      };
+      invoke('cli_publish_player_snapshot', { snapshot }).catch(() => {});
+    };
+    publish();
+    const schedule = () => {
+      if (tid !== undefined) clearTimeout(tid);
+      tid = setTimeout(() => {
+        tid = undefined;
+        publish();
+      }, 200);
+    };
+    const unsubP = usePlayerStore.subscribe(schedule);
+    const unsubA = useAuthStore.subscribe(schedule);
+    return () => {
+      unsubP();
+      unsubA();
+      if (tid !== undefined) clearTimeout(tid);
+    };
+  }, []);
+
   return null;
 }
 

src/components/ConnectionIndicator.tsx

@@ -1,6 +1,11 @@
+import React, { useState, useEffect, useRef } from 'react';
 import { useTranslation } from 'react-i18next';
 import { useNavigate } from 'react-router-dom';
+import { Check, ChevronDown } from 'lucide-react';
 import { ConnectionStatus } from '../hooks/useConnectionStatus';
+import { useAuthStore, type ServerProfile } from '../store/authStore';
+import { switchActiveServer } from '../utils/switchActiveServer';
+import { showToast } from '../utils/toast';
 
 interface Props {
   status: ConnectionStatus;
@@ -11,28 +16,141 @@ interface Props {
 export default function ConnectionIndicator({ status, isLan, serverName }: Props) {
   const { t } = useTranslation();
   const navigate = useNavigate();
+  const servers = useAuthStore(s => s.servers);
+  const activeServerId = useAuthStore(s => s.activeServerId);
+  const [menuOpen, setMenuOpen] = useState(false);
+  const [switchingId, setSwitchingId] = useState<string | null>(null);
+  const hostRef = useRef<HTMLDivElement>(null);
+
+  const multi = servers.length > 1;
+
+  useEffect(() => {
+    if (!menuOpen) return;
+    const onDown = (e: MouseEvent) => {
+      if (hostRef.current?.contains(e.target as Node)) return;
+      setMenuOpen(false);
+    };
+    const onKey = (e: KeyboardEvent) => {
+      if (e.key === 'Escape') setMenuOpen(false);
+    };
+    document.addEventListener('mousedown', onDown);
+    document.addEventListener('keydown', onKey);
+    return () => {
+      document.removeEventListener('mousedown', onDown);
+      document.removeEventListener('keydown', onKey);
+    };
+  }, [menuOpen]);
+
+  const goServerSettings = () => {
+    setMenuOpen(false);
+    navigate('/settings', { state: { tab: 'server' } });
+  };
+
+  const onTriggerClick = () => {
+    if (!multi) {
+      goServerSettings();
+      return;
+    }
+    setMenuOpen(o => !o);
+  };
+
+  const onPickServer = async (srv: ServerProfile) => {
+    if (srv.id === activeServerId) {
+      setMenuOpen(false);
+      return;
+    }
+    setSwitchingId(srv.id);
+    const ok = await switchActiveServer(srv);
+    setSwitchingId(null);
+    setMenuOpen(false);
+    if (!ok) {
+      showToast(t('connection.switchFailed'), 5000, 'error');
+      return;
+    }
+    navigate('/');
+  };
 
   const label = isLan ? 'LAN' : t('connection.extern');
-  const tooltip =
-    status === 'connected'
+  const tooltip = multi
+    ? t('connection.switchServerHint')
+    : status === 'connected'
       ? t('connection.connectedTo', { server: serverName })
       : status === 'disconnected'
-      ? t('connection.disconnectedFrom', { server: serverName })
-      : t('connection.checking');
+        ? t('connection.disconnectedFrom', { server: serverName })
+        : t('connection.checking');
 
   return (
-    <div
-      className="connection-indicator"
-      style={{ cursor: 'pointer' }}
-      onClick={() => navigate('/settings', { state: { tab: 'server' } })}
-      data-tooltip={tooltip}
-      data-tooltip-pos="bottom"
-    >
-      <div className={`connection-led connection-led--${status}`} />
-      <div className="connection-meta">
-        <span className="connection-type">{label}</span>
-        <span className="connection-server">{serverName}</span>
+    <div className="connection-indicator-host" ref={hostRef}>
+      <div
+        className="connection-indicator"
+        style={{ cursor: 'pointer' }}
+        onClick={onTriggerClick}
+        data-tooltip={tooltip}
+        data-tooltip-pos="bottom"
+        role={multi ? 'button' : undefined}
+        aria-haspopup={multi ? 'menu' : undefined}
+        aria-expanded={multi ? menuOpen : undefined}
+      >
+        <div className={`connection-led connection-led--${status}`} />
+        <div className="connection-meta">
+          <span className="connection-type">{label}</span>
+          <span className="connection-server" style={{ display: 'flex', alignItems: 'center', gap: 4, maxWidth: 120 }}>
+            <span style={{ overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap' }}>{serverName}</span>
+            {multi && (
+              <ChevronDown size={12} className={menuOpen ? 'connection-indicator-chevron--open' : undefined} style={{ flexShrink: 0, opacity: 0.85 }} aria-hidden />
+            )}
+          </span>
+        </div>
       </div>
+      {multi && menuOpen && (
+        <div
+          className="nav-library-dropdown-panel connection-indicator-dropdown-panel"
+          role="menu"
+          aria-label={t('connection.switchServerTitle')}
+        >
+          <div
+            style={{
+              fontSize: 10,
+              fontWeight: 600,
+              letterSpacing: '0.08em',
+              textTransform: 'uppercase',
+              color: 'var(--text-muted)',
+              padding: '6px 10px 4px',
+            }}
+          >
+            {t('connection.switchServerTitle')}
+          </div>
+          {servers.map(srv => {
+            const active = srv.id === activeServerId;
+            const busy = switchingId !== null;
+            const labelText = (srv.name || srv.url).trim() || srv.url;
+            return (
+              <button
+                key={srv.id}
+                type="button"
+                role="menuitem"
+                className={`nav-library-dropdown-item${active ? ' nav-library-dropdown-item--selected' : ''}`}
+                disabled={busy}
+                onClick={() => onPickServer(srv)}
+              >
+                <span className="nav-library-dropdown-item-label">{labelText}</span>
+                {switchingId === srv.id ? (
+                  <div className="spinner" style={{ width: 14, height: 14, flexShrink: 0 }} aria-hidden />
+                ) : active ? (
+                  <Check size={16} className="nav-library-dropdown-check" aria-hidden />
+                ) : (
+                  <span className="nav-library-dropdown-check-spacer" aria-hidden />
+                )}
+              </button>
+            );
+          })}
+          <div style={{ borderTop: '1px solid color-mix(in srgb, var(--text-muted) 15%, transparent)', marginTop: 2, paddingTop: 2 }} />
+          <button type="button" className="nav-library-dropdown-item" onClick={goServerSettings}>
+            <span className="nav-library-dropdown-item-label">{t('connection.manageServers')}</span>
+            <span className="nav-library-dropdown-check-spacer" aria-hidden />
+          </button>
+        </div>
+      )}
     </div>
   );
 }

src/components/ContextMenu.tsx

@@ -1344,12 +1344,7 @@ export default function ContextMenu() {
   };
 
   const startInstantMix = async (song: Track) => {
-    const state = usePlayerStore.getState();
-    if (state.currentTrack?.id === song.id) {
-      if (!state.isPlaying) state.resume();
-    } else {
-      playTrack(song, [song]);
-    }
+    usePlayerStore.getState().reseedQueueForInstantMix(song);
     const serverId = useAuthStore.getState().activeServerId;
     try {
       const similar = await getSimilarSongs(song.id, 50);

src/locales/de.ts

@@ -101,6 +101,7 @@ export const deTranslation = {
     startRadio: 'Radio starten',
     instantMix: 'Instant Mix',
     instantMixFailed: 'Instant Mix konnte nicht erstellt werden — Server- oder Pluginfehler.',
+    cliMixNeedsTrack: 'Es läuft nichts — starte zuerst die Wiedergabe und führe den Mix-Befehl erneut aus.',
     lfmLove: 'Auf Last.fm liken',
     lfmUnlove: 'Last.fm-Like entfernen',
     favorite: 'Favorisieren',
@@ -355,6 +356,10 @@ export const deTranslation = {
     offlineFilterArtists: 'Diskografien',
     retry: 'Erneut versuchen',
     serverSettings: 'Server-Einstellungen',
+    switchServerTitle: 'Server wechseln',
+    switchServerHint: 'Klicken, um einen anderen gespeicherten Server zu wählen.',
+    manageServers: 'Server verwalten…',
+    switchFailed: 'Wechsel fehlgeschlagen — Server nicht erreichbar.',
     lastfmConnected: 'Last.fm verbunden als @{{user}}',
     lastfmSessionInvalid: 'Session ungültig — klicken zum Neu-Verbinden',
   },

src/locales/en.ts

@@ -102,6 +102,7 @@ export const enTranslation = {
     startRadio: 'Start Radio',
     instantMix: 'Instant Mix',
     instantMixFailed: 'Could not build Instant Mix — server or plugin error.',
+    cliMixNeedsTrack: 'Nothing is playing — start playback first, then run the mix command again.',
     lfmLove: 'Love on Last.fm',
     lfmUnlove: 'Unlove on Last.fm',
     favorite: 'Favorite',
@@ -356,6 +357,10 @@ export const enTranslation = {
     offlineFilterArtists: 'Discographies',
     retry: 'Retry',
     serverSettings: 'Server Settings',
+    switchServerTitle: 'Switch server',
+    switchServerHint: 'Click to choose another saved server.',
+    manageServers: 'Manage servers…',
+    switchFailed: 'Could not switch — server unreachable.',
     lastfmConnected: 'Last.fm connected as @{{user}}',
     lastfmSessionInvalid: 'Session invalid — click to re-connect',
   },

src/locales/es.ts

@@ -102,6 +102,7 @@ export const esTranslation = {
     startRadio: 'Iniciar Radio',
     instantMix: 'Mezcla Instantánea',
     instantMixFailed: 'No se pudo crear la Mezcla Instantánea — error del servidor o plugin.',
+    cliMixNeedsTrack: 'No hay nada en reproducción — inicia la reproducción y vuelve a ejecutar el comando de mezcla.',
     lfmLove: 'Favorito en Last.fm',
     lfmUnlove: 'Quitar favorito de Last.fm',
     favorite: 'Favorito',
@@ -357,6 +358,10 @@ export const esTranslation = {
     offlineFilterArtists: 'Discografías',
     retry: 'Reintentar',
     serverSettings: 'Configuración del servidor',
+    switchServerTitle: 'Cambiar servidor',
+    switchServerHint: 'Clic para elegir otro servidor guardado.',
+    manageServers: 'Gestionar servidores…',
+    switchFailed: 'No se pudo cambiar — servidor inalcanzable.',
     lastfmConnected: 'Last.fm conectado como @{{user}}',
     lastfmSessionInvalid: 'Sesión inválida — click para reconectar',
   },

src/locales/fr.ts

@@ -101,6 +101,7 @@ export const frTranslation = {
     startRadio: 'Démarrer la radio',
     instantMix: 'Mix instantané',
     instantMixFailed: 'Impossible de créer le mix instantané — erreur serveur ou plugin.',
+    cliMixNeedsTrack: 'Aucune lecture en cours — lancez d’abord la lecture, puis relancez la commande de mix.',
     lfmLove: 'Aimer sur Last.fm',
     lfmUnlove: 'Ne plus aimer sur Last.fm',
     favorite: 'Favori',
@@ -355,6 +356,10 @@ export const frTranslation = {
     offlineFilterArtists: 'Discographies',
     retry: 'Réessayer',
     serverSettings: 'Paramètres serveur',
+    switchServerTitle: 'Changer de serveur',
+    switchServerHint: 'Cliquez pour choisir un autre serveur enregistré.',
+    manageServers: 'Gérer les serveurs…',
+    switchFailed: 'Impossible de changer — serveur injoignable.',
     lastfmConnected: 'Last.fm connecté en tant que @{{user}}',
     lastfmSessionInvalid: 'Session invalide — cliquez pour vous reconnecter',
   },

src/locales/nb.ts

@@ -101,6 +101,7 @@ export const nbTranslation = {
     startRadio: 'Start radio',
     instantMix: 'Instant Mix',
     instantMixFailed: 'Kunne ikke lage Instant Mix — server- eller pluginfeil.',
+    cliMixNeedsTrack: 'Ingenting spilles — start avspilling først, og kjør mix-kommandoen på nytt.',
     lfmLove: 'Lik på Last.fm',
     lfmUnlove: 'Fjern fra likte på Last.fm',
     favorite: 'Favoritt',
@@ -355,6 +356,10 @@ export const nbTranslation = {
     offlineFilterArtists: 'Diskografier',
     retry: 'Prøv igjen',
     serverSettings: 'Serverinnstillinger',
+    switchServerTitle: 'Bytt server',
+    switchServerHint: 'Klikk for å velge en annen lagret server.',
+    manageServers: 'Administrer servere…',
+    switchFailed: 'Klarte ikke å bytte — serveren er utilgjengelig.',
     lastfmConnected: 'Last.fm tilkoblet som bruker @{{user}}',
     lastfmSessionInvalid: 'Sesjonen er ugyldig - klikk her for å koble til på nytt',
   },

src/locales/nl.ts

@@ -101,6 +101,7 @@ export const nlTranslation = {
     startRadio: 'Radio starten',
     instantMix: 'Instant Mix',
     instantMixFailed: 'Instant Mix mislukt — server- of pluginfout.',
+    cliMixNeedsTrack: 'Er speelt niets — start eerst afspelen en voer het mix-commando opnieuw uit.',
     lfmLove: 'Liken op Last.fm',
     lfmUnlove: 'Niet meer liken op Last.fm',
     favorite: 'Favoriet',
@@ -354,6 +355,10 @@ export const nlTranslation = {
     offlineFilterArtists: 'Discografieën',
     retry: 'Opnieuw proberen',
     serverSettings: 'Serverinstellingen',
+    switchServerTitle: 'Server wisselen',
+    switchServerHint: 'Klik om een andere opgeslagen server te kiezen.',
+    manageServers: 'Servers beheren…',
+    switchFailed: 'Wisselen mislukt — server niet bereikbaar.',
     lastfmConnected: 'Last.fm verbonden als @{{user}}',
     lastfmSessionInvalid: 'Sessie ongeldig — klik om opnieuw te verbinden',
   },

src/locales/ru.ts

@@ -102,6 +102,7 @@ export const ruTranslation = {
     startRadio: 'Радио по похожим',
     instantMix: 'Instant Mix',
     instantMixFailed: 'Не удалось собрать Instant Mix — ошибка сервера или плагина.',
+    cliMixNeedsTrack: 'Ничего не играет — сначала начните воспроизведение, затем снова выполните команду микса.',
     lfmLove: 'Любимое на Last.fm',
     lfmUnlove: 'Убрать с Last.fm',
     favorite: 'В избранное',
@@ -369,6 +370,10 @@ export const ruTranslation = {
     offlineFilterArtists: 'Дискографии',
     retry: 'Повторить',
     serverSettings: 'Настройки сервера',
+    switchServerTitle: 'Сменить сервер',
+    switchServerHint: 'Нажмите, чтобы выбрать другой сохранённый сервер.',
+    manageServers: 'Управление серверами…',
+    switchFailed: 'Не удалось переключиться — сервер недоступен.',
     lastfmConnected: 'Last.fm: @{{user}}',
     lastfmSessionInvalid: 'Сессия недействительна — подключите снова',
   },

src/locales/zh.ts

@@ -101,6 +101,7 @@ export const zhTranslation = {
     startRadio: '开始电台',
     instantMix: '即时混音',
     instantMixFailed: '无法生成即时混音 — 服务器或插件出错。',
+    cliMixNeedsTrack: '当前没有正在播放的内容 — 请先开始播放，然后再执行混音命令。',
     lfmLove: '在 Last.fm 上标记喜欢',
     lfmUnlove: '取消 Last.fm 喜欢标记',
     favorite: '收藏',
@@ -350,6 +351,10 @@ export const zhTranslation = {
     offlineAlbumCount_plural: '{{n}} 张专辑',
     retry: '重试',
     serverSettings: '服务器设置',
+    switchServerTitle: '切换服务器',
+    switchServerHint: '点击选择其他已保存的服务器。',
+    manageServers: '管理服务器…',
+    switchFailed: '无法切换 — 无法连接服务器。',
     lastfmConnected: 'Last.fm 已连接为 @{{user}}',
     lastfmSessionInvalid: '会话无效 — 点击重新连接',
   },

src/pages/Settings.tsx

@@ -33,6 +33,7 @@ import { useHomeStore, HomeSectionId } from '../store/homeStore';
 import { useDragDrop, useDragSource } from '../contexts/DragDropContext';
 import { ALL_NAV_ITEMS } from '../components/Sidebar';
 import { pingWithCredentials, scheduleInstantMixProbeForServer } from '../api/subsonic';
+import { switchActiveServer } from '../utils/switchActiveServer';
 import { open as openDialog } from '@tauri-apps/plugin-dialog';
 import { Trans, useTranslation } from 'react-i18next';
 import Equalizer from '../components/Equalizer';
@@ -572,23 +573,11 @@ export default function Settings() {
 
   const switchToServer = async (server: ServerProfile) => {
     setConnStatus(s => ({ ...s, [server.id]: 'testing' }));
-    try {
-      const ping = await pingWithCredentials(server.url, server.username, server.password);
-      if (ping.ok) {
-        const identity = {
-          type: ping.type,
-          serverVersion: ping.serverVersion,
-          openSubsonic: ping.openSubsonic,
-        };
-        auth.setSubsonicServerIdentity(server.id, identity);
-        scheduleInstantMixProbeForServer(server.id, server.url, server.username, server.password, identity);
-        auth.setActiveServer(server.id);
-        auth.setLoggedIn(true);
-        navigate('/');
-      } else {
-        setConnStatus(s => ({ ...s, [server.id]: 'error' }));
-      }
-    } catch {
+    const ok = await switchActiveServer(server);
+    if (ok) {
+      setConnStatus(s => ({ ...s, [server.id]: 'ok' }));
+      navigate('/');
+    } else {
       setConnStatus(s => ({ ...s, [server.id]: 'error' }));
     }
   };

src/store/playerStore.ts

@@ -64,7 +64,7 @@ export function songToTrack(song: SubsonicSong): Track {
   };
 }
 
-function shuffleArray<T>(items: T[]): T[] {
+export function shuffleArray<T>(items: T[]): T[] {
   const arr = [...items];
   for (let i = arr.length - 1; i > 0; i--) {
     const j = Math.floor(Math.random() * (i + 1));
@@ -131,6 +131,8 @@ interface PlayerState {
 
   playRadio: (station: InternetRadioStation) => void;
   playTrack: (track: Track, queue?: Track[], manual?: boolean) => void;
+  /** Queue becomes `[track]` only; if already on this track, does not restart `audio_play`. */
+  reseedQueueForInstantMix: (track: Track) => void;
   pause: () => void;
   resume: () => void;
   stop: () => void;
@@ -942,6 +944,22 @@ export const usePlayerStore = create<PlayerState>()(
         touchHotCacheOnPlayback(track.id, authState.activeServerId ?? '');
       },
 
+      reseedQueueForInstantMix: (track) => {
+        const s = get();
+        if (s.currentTrack?.id !== track.id) {
+          get().playTrack(track, [track]);
+          return;
+        }
+        const wasPlaying = s.isPlaying;
+        set({
+          queue: [track],
+          queueIndex: 0,
+          currentTrack: track,
+        });
+        syncQueueToServer([track], track, s.currentTime);
+        if (!wasPlaying) get().resume();
+      },
+
       // ── pause / resume / togglePlay ──────────────────────────────────────────
       pause: () => {
         if (get().currentRadio) {

src/styles/components.css

@@ -4090,6 +4090,24 @@ html.no-compositing .fs-seekbar-played {
 }
 
 /* ─ Connection Indicator ─ */
+.connection-indicator-host {
+  position: relative;
+  flex-shrink: 0;
+}
+
+.connection-indicator-dropdown-panel {
+  position: absolute;
+  top: calc(100% + 6px);
+  right: 0;
+  min-width: 220px;
+  max-width: min(320px, 85vw);
+}
+
+.connection-indicator-chevron--open {
+  transform: rotate(180deg);
+  transition: transform var(--transition-fast, 0.15s ease);
+}
+
 .connection-indicator {
   display: flex;
   align-items: center;

src/utils/playArtistShuffled.ts

@@ -0,0 +1,25 @@
+import { getAlbum, getArtist } from '../api/subsonic';
+import { shuffleArray, songToTrack, usePlayerStore } from '../store/playerStore';
+
+/**
+ * All tracks from the artist’s albums, shuffled — same idea as Artist page “shuffle play”.
+ */
+export async function playArtistShuffled(artistId: string): Promise<void> {
+  const { albums } = await getArtist(artistId);
+  if (albums.length === 0) {
+    throw new Error('play_artist_no_tracks');
+  }
+
+  const results = await Promise.all(albums.map(a => getAlbum(a.id)));
+  const sorted = [...results].sort((a, b) => (a.album.year ?? 0) - (b.album.year ?? 0));
+  const tracks = sorted.flatMap(r =>
+    [...r.songs].sort((a, b) => (a.track ?? 0) - (b.track ?? 0)).map(songToTrack),
+  );
+
+  if (tracks.length === 0) {
+    throw new Error('play_artist_no_tracks');
+  }
+
+  const shuffled = shuffleArray(tracks);
+  usePlayerStore.getState().playTrack(shuffled[0], shuffled);
+}

src/utils/playByOpaqueId.ts

@@ -0,0 +1,35 @@
+import { getAlbum, getSong } from '../api/subsonic';
+import { playAlbum } from './playAlbum';
+import { playArtistShuffled } from './playArtistShuffled';
+import { songToTrack, usePlayerStore } from '../store/playerStore';
+
+/**
+ * `getSong` → `getAlbum` → `getArtist`: one opaque Subsonic id may refer to a track,
+ * album, or artist depending on the server.
+ */
+export async function playByOpaqueId(id: string): Promise<void> {
+  const trimmed = id.trim();
+  if (!trimmed) return;
+
+  const song = await getSong(trimmed);
+  if (song) {
+    usePlayerStore.getState().playTrack(songToTrack(song));
+    return;
+  }
+
+  try {
+    const { songs } = await getAlbum(trimmed);
+    if (songs.length > 0) {
+      await playAlbum(trimmed);
+      return;
+    }
+  } catch {
+    /* not an album */
+  }
+
+  try {
+    await playArtistShuffled(trimmed);
+  } catch {
+    throw new Error('play_by_id_not_found');
+  }
+}

src/utils/switchActiveServer.ts

@@ -0,0 +1,30 @@
+import { pingWithCredentials, scheduleInstantMixProbeForServer } from '../api/subsonic';
+import type { ServerProfile } from '../store/authStore';
+import { useAuthStore } from '../store/authStore';
+import { usePlayerStore } from '../store/playerStore';
+
+/**
+ * Ping, update server identity / Instant Mix probe, set active server, clear local playback
+ * and pull the new server's saved play queue.
+ */
+export async function switchActiveServer(server: ServerProfile): Promise<boolean> {
+  try {
+    const ping = await pingWithCredentials(server.url, server.username, server.password);
+    if (!ping.ok) return false;
+    const identity = {
+      type: ping.type,
+      serverVersion: ping.serverVersion,
+      openSubsonic: ping.openSubsonic,
+    };
+    const auth = useAuthStore.getState();
+    auth.setSubsonicServerIdentity(server.id, identity);
+    scheduleInstantMixProbeForServer(server.id, server.url, server.username, server.password, identity);
+    auth.setActiveServer(server.id);
+    auth.setLoggedIn(true);
+    usePlayerStore.getState().clearQueue();
+    await usePlayerStore.getState().initializeFromServerQueue();
+    return true;
+  } catch {
+    return false;
+  }
+}