Refactor to Cargo Workspace (#129)

* Refactor project into a Cargo workspace with distinct packages

- Created a root `Cargo.toml` defining a workspace.
- Moved `src/types` and `src/utils` into a new `pwsp-lib` crate for shared logic.
- Split binaries into their own crates: `pwsp-daemon`, `pwsp-cli`, and `pwsp-gui`.
- Shifted all dependencies into `[workspace.dependencies]` for centralized version management.
- Updated import paths across all crates (e.g. from `pwsp::` to `pwsp_lib::`).
- Updated build scripts, GitHub actions, Flatpak manifest, and AUR PKGBUILD to support the new workspace structure.
- Ensured no core application logic was altered.

Co-authored-by: arabianq <55220741+arabianq@users.noreply.github.com>

* Fix cargo-deb build process in GitHub actions for workspace architecture

Co-authored-by: arabianq <55220741+arabianq@users.noreply.github.com>

* Fix cargo-deb asset discovery by using exact target/release paths

Co-authored-by: arabianq <55220741+arabianq@users.noreply.github.com>

* refactor deps in Cargo.toml files

* fix incorrect assets path

---------

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>

pwsp-lib/src/types/audio_player.rs

@@ -0,0 +1,491 @@
+use crate::{
+    types::pipewire::{DeviceType, Terminate},
+    utils::{
+        daemon::get_daemon_config,
+        pipewire::{create_link, get_device, link_player_to_virtual_mic},
+    },
+};
+use anyhow::{Result, anyhow};
+use rodio::{Decoder, DeviceSinkBuilder, MixerDeviceSink, Player, Source};
+use serde::{Deserialize, Serialize};
+use std::{
+    collections::HashMap,
+    error::Error,
+    fs,
+    path::{Path, PathBuf},
+    time::Duration,
+};
+
+#[derive(Debug, Eq, PartialEq, Default, Clone, Serialize, Deserialize)]
+pub enum PlayerState {
+    #[default]
+    Stopped,
+    Paused,
+    Playing,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct TrackInfo {
+    pub id: u32,
+    pub path: PathBuf,
+    pub duration: Option<f32>,
+    pub position: f32,
+    pub volume: f32,
+    pub looped: bool,
+    pub paused: bool,
+}
+
+#[derive(Default, Debug, Clone, Serialize, Deserialize)]
+pub struct FullState {
+    pub state: PlayerState,
+    pub tracks: Vec<TrackInfo>,
+    pub volume: f32,
+    pub current_input: String,
+    pub all_inputs: HashMap<String, String>,
+}
+
+pub struct PlayingSound {
+    pub id: u32,
+    pub sink: Player,
+    pub path: PathBuf,
+    pub duration: Option<f32>,
+    pub looped: bool,
+    pub volume: f32,
+}
+
+pub struct AudioPlayer {
+    stream_handle: Option<MixerDeviceSink>,
+    pub tracks: HashMap<u32, PlayingSound>,
+    pub next_id: u32,
+
+    input_link_sender: Option<pipewire::channel::Sender<Terminate>>,
+    player_link_sender: Option<pipewire::channel::Sender<Terminate>>,
+    pub input_device_name: Option<String>,
+
+    pub volume: f32, // Master volume
+}
+
+impl AudioPlayer {
+    pub async fn new() -> Result<Self> {
+        let daemon_config = get_daemon_config();
+        let default_volume = daemon_config.default_volume.unwrap_or(1.0);
+
+        let mut audio_player = AudioPlayer {
+            stream_handle: None,
+            tracks: HashMap::new(),
+            next_id: 1,
+
+            input_link_sender: None,
+            player_link_sender: None,
+            input_device_name: daemon_config.default_input_name.clone(),
+
+            volume: default_volume,
+        };
+
+        if audio_player.input_device_name.is_some() {
+            audio_player.link_devices().await?;
+        }
+
+        Ok(audio_player)
+    }
+
+    fn ensure_stream(&mut self) -> Result<&MixerDeviceSink> {
+        if self.stream_handle.is_none() {
+            let mut sink = DeviceSinkBuilder::open_default_sink()?;
+            sink.log_on_drop(false);
+            self.stream_handle = Some(sink);
+        }
+        self.stream_handle
+            .as_ref()
+            .ok_or_else(|| anyhow!("Failed to initialize stream_handle"))
+    }
+
+    fn drop_stream(&mut self) {
+        if self.stream_handle.is_some() {
+            self.stream_handle = None;
+            self.abort_player_link_thread();
+        }
+    }
+
+    fn abort_link_thread(&mut self) {
+        if let Some(sender) = &self.input_link_sender {
+            if sender.send(Terminate {}).is_ok() {
+                println!("Sent terminate signal to input link thread");
+                self.input_link_sender = None;
+            } else {
+                eprintln!("Failed to send terminate signal to input link thread");
+            }
+        }
+    }
+
+    fn abort_player_link_thread(&mut self) {
+        if let Some(sender) = &self.player_link_sender {
+            if sender.send(Terminate {}).is_ok() {
+                println!("Sent terminate signal to player link thread");
+                self.player_link_sender = None;
+            } else {
+                eprintln!("Failed to send terminate signal to player link thread");
+            }
+        }
+    }
+
+    async fn link_player(&mut self) -> Result<()> {
+        if self.player_link_sender.is_some() {
+            return Ok(());
+        }
+
+        match link_player_to_virtual_mic().await {
+            Ok(sender) => {
+                self.player_link_sender = Some(sender);
+                Ok(())
+            }
+            Err(_) => Ok(()),
+        }
+    }
+
+    async fn link_devices(&mut self) -> Result<()> {
+        self.abort_link_thread();
+
+        let input_device;
+        if let Some(input_device_name) = &self.input_device_name {
+            if let Ok(device) = get_device(input_device_name).await {
+                input_device = device;
+            } else {
+                eprintln!(
+                    "Could not find selected input device {}, skipping device linking",
+                    input_device_name
+                );
+                return Ok(());
+            }
+        } else {
+            eprintln!("No input device selected, skipping device linking");
+            return Ok(());
+        }
+
+        let daemon_input;
+        if let Ok(device) = get_device("pwsp-virtual-mic").await {
+            daemon_input = device;
+        } else {
+            eprintln!("Could not find pwsp-virtual-mic device, skipping device linking");
+            return Ok(());
+        }
+
+        let Some(output_fl) = input_device.output_fl.clone() else {
+            eprintln!("Failed to get pwsp-daemon output_fl");
+            return Ok(());
+        };
+        let Some(output_fr) = input_device.output_fr.clone() else {
+            eprintln!("Failed to get pwsp-daemon output_fr");
+            return Ok(());
+        };
+        let Some(input_fl) = daemon_input.input_fl.clone() else {
+            eprintln!("Failed to get pwsp-daemon input_fl");
+            return Ok(());
+        };
+        let Some(input_fr) = daemon_input.input_fr.clone() else {
+            eprintln!("Failed to get pwsp-daemon input_fr");
+            return Ok(());
+        };
+
+        self.input_link_sender = Some(create_link(output_fl, output_fr, input_fl, input_fr)?);
+
+        Ok(())
+    }
+
+    pub fn pause(&mut self, id: Option<u32>) {
+        if let Some(id) = id {
+            if let Some(sound) = self.tracks.get_mut(&id) {
+                sound.sink.pause();
+            }
+        } else {
+            for sound in self.tracks.values_mut() {
+                sound.sink.pause();
+            }
+        }
+    }
+
+    pub fn resume(&mut self, id: Option<u32>) {
+        if let Some(id) = id {
+            if let Some(sound) = self.tracks.get_mut(&id) {
+                sound.sink.play();
+            }
+        } else {
+            for sound in self.tracks.values_mut() {
+                sound.sink.play();
+            }
+        }
+    }
+
+    pub fn stop(&mut self, id: Option<u32>) {
+        if let Some(id) = id {
+            self.tracks.remove(&id);
+        } else {
+            self.tracks.clear();
+        }
+        if self.tracks.is_empty() {
+            self.drop_stream();
+        }
+    }
+
+    pub fn is_paused(&self) -> bool {
+        if self.tracks.is_empty() {
+            return false;
+        }
+        self.tracks.values().all(|s| s.sink.is_paused())
+    }
+
+    pub fn get_state(&self) -> PlayerState {
+        if self.tracks.is_empty() {
+            return PlayerState::Stopped;
+        }
+
+        if self
+            .tracks
+            .values()
+            .any(|s| !s.sink.is_paused() && !s.sink.empty())
+        {
+            return PlayerState::Playing;
+        }
+
+        if self.is_paused() {
+            return PlayerState::Paused;
+        }
+
+        PlayerState::Stopped
+    }
+
+    pub fn get_volume(&mut self, id: Option<u32>) -> Option<f32> {
+        if let Some(id) = id {
+            if let Some(sound) = self.tracks.get_mut(&id) {
+                Some(sound.sink.volume())
+            } else {
+                None
+            }
+        } else {
+            Some(self.volume)
+        }
+    }
+
+    pub fn set_volume(&mut self, volume: f32, id: Option<u32>) {
+        if let Some(id) = id {
+            if let Some(sound) = self.tracks.get_mut(&id) {
+                sound.volume = volume;
+                sound.sink.set_volume(self.volume * volume);
+            }
+        } else {
+            self.volume = volume;
+            for sound in self.tracks.values_mut() {
+                sound.sink.set_volume(self.volume * sound.volume);
+            }
+        }
+    }
+
+    pub fn get_position(&self, id: Option<u32>) -> f32 {
+        if let Some(id) = id {
+            if let Some(sound) = self.tracks.get(&id) {
+                return sound.sink.get_pos().as_secs_f32();
+            }
+        } else if let Some(sound) = self.tracks.values().last() {
+            // Fallback to last added track if no ID
+            return sound.sink.get_pos().as_secs_f32();
+        }
+        0.0
+    }
+
+    pub fn seek(&mut self, position: f32, id: Option<u32>) -> Result<()> {
+        let position = if position < 0.0 { 0.0 } else { position };
+
+        if let Some(id) = id {
+            if let Some(sound) = self.tracks.get_mut(&id) {
+                sound.sink.try_seek(Duration::from_secs_f32(position))?;
+            }
+        } else {
+            // Seek all? Or last? Let's seek all for now if no ID provided
+            for sound in self.tracks.values_mut() {
+                sound.sink.try_seek(Duration::from_secs_f32(position)).ok();
+            }
+        }
+        Ok(())
+    }
+
+    pub fn get_duration(&mut self, id: Option<u32>) -> Result<f32> {
+        if let Some(id) = id {
+            if let Some(sound) = self.tracks.get(&id) {
+                return sound.duration.ok_or(anyhow!("Unknown duration"));
+            }
+        } else if let Some(sound) = self.tracks.values().last() {
+            return sound.duration.ok_or(anyhow!("Unknown duration"));
+        }
+        Err(anyhow!("No track playing"))
+    }
+
+    pub async fn play(&mut self, file_path: &Path, concurrent: bool) -> Result<u32> {
+        let path_buf = file_path.to_path_buf();
+
+        let decoder_result =
+            tokio::task::spawn_blocking(move || -> Result<_, Box<dyn Error + Send + Sync>> {
+                if !path_buf.exists() {
+                    return Err(format!("File does not exist: {}", path_buf.display()).into());
+                }
+
+                let file = fs::File::open(&path_buf)?;
+                let decoder = Decoder::try_from(file)
+                    .map_err(|e| Box::new(e) as Box<dyn Error + Send + Sync>)?;
+                Ok(decoder)
+            })
+            .await?;
+
+        match decoder_result {
+            Ok(source) => {
+                if !concurrent {
+                    self.tracks.clear();
+                }
+
+                self.ensure_stream()?;
+                self.link_player().await.ok();
+
+                let id = self.next_id;
+                self.next_id += 1;
+
+                let duration = source.total_duration().map(|d| d.as_secs_f32());
+
+                let mixer = self
+                    .stream_handle
+                    .as_ref()
+                    .ok_or_else(|| anyhow::anyhow!("stream_handle is unexpectedly missing"))?
+                    .mixer();
+                let sink = Player::connect_new(mixer);
+                sink.set_volume(self.volume); // Default volume is 1.0 * master
+                sink.append(source);
+                sink.play();
+
+                let sound = PlayingSound {
+                    id,
+                    sink,
+                    path: file_path.to_path_buf(),
+                    duration,
+                    looped: false,
+                    volume: 1.0,
+                };
+
+                self.tracks.insert(id, sound);
+
+                Ok(id)
+            }
+            Err(err) => Err(anyhow!(err)),
+        }
+    }
+
+    pub fn set_loop(&mut self, enabled: bool, id: Option<u32>) {
+        if let Some(id) = id {
+            if let Some(sound) = self.tracks.get_mut(&id) {
+                sound.looped = enabled;
+            }
+        } else {
+            // Set loop for all? Or just last?
+            // Let's set for all.
+            for sound in self.tracks.values_mut() {
+                sound.looped = enabled;
+            }
+        }
+    }
+
+    pub fn get_tracks(&self) -> Vec<TrackInfo> {
+        let mut tracks: Vec<_> = self
+            .tracks
+            .values()
+            .map(|sound| TrackInfo {
+                id: sound.id,
+                path: sound.path.clone(),
+                duration: sound.duration,
+                position: sound.sink.get_pos().as_secs_f32(),
+                volume: sound.volume,
+                looped: sound.looped,
+                paused: sound.sink.is_paused(),
+            })
+            .collect();
+        tracks.sort_by_key(|t| t.id);
+        tracks
+    }
+
+    pub async fn update(&mut self, check_devices: bool) {
+        if check_devices {
+            if let Some(input_device_name) = &self.input_device_name {
+                // Unlink devices if selected input device was removed
+                if self.input_link_sender.is_some() && get_device(input_device_name).await.is_err()
+                {
+                    eprintln!(
+                        "Selected input device {} was removed, unlinking devices",
+                        input_device_name
+                    );
+                    self.abort_link_thread();
+                }
+                // Link devices if not linked
+                else if self.input_link_sender.is_none() {
+                    self.link_devices().await.ok();
+                }
+            }
+
+            if self.stream_handle.is_some() && self.player_link_sender.is_none() {
+                self.link_player().await.ok();
+            }
+        }
+
+        // Handle looped sounds
+        let mut restarts = vec![];
+
+        for (id, sound) in &self.tracks {
+            if sound.sink.empty() && sound.looped {
+                restarts.push(*id);
+            }
+        }
+
+        let mut restart_futures = vec![];
+
+        for id in restarts {
+            if let Some(sound) = self.tracks.get(&id) {
+                let path = sound.path.clone();
+                let handle = tokio::task::spawn_blocking(move || {
+                    if let Ok(file) = fs::File::open(&path)
+                        && let Ok(source) = Decoder::try_from(file)
+                    {
+                        return Some((id, source));
+                    }
+                    None
+                });
+                restart_futures.push(handle);
+            }
+        }
+
+        for handle in restart_futures {
+            if let Ok(res) = handle.await
+                && let Some((id, source)) = res
+                && let Some(sound) = self.tracks.get_mut(&id)
+            {
+                sound.sink.append(source);
+                sound.sink.play();
+            }
+        }
+
+        self.tracks
+            .retain(|_, sound| !sound.sink.empty() || sound.looped);
+
+        if self.tracks.is_empty() {
+            self.drop_stream();
+        }
+    }
+
+    pub async fn set_current_input_device(&mut self, name: &str) -> Result<()> {
+        let input_device = get_device(name).await?;
+
+        if input_device.device_type != DeviceType::Input {
+            return Err(anyhow!("Selected device is not an input device"));
+        }
+
+        self.input_device_name = Some(name.to_string());
+
+        self.link_devices().await?;
+
+        Ok(())
+    }
+}

pwsp-lib/src/types/commands.rs

@@ -0,0 +1,725 @@
+use crate::{
+    types::{
+        audio_player::{FullState, PlayerState},
+        config::HotkeyConfig,
+        socket::{Request, Response},
+    },
+    utils::{
+        commands::parse_command,
+        daemon::get_audio_player,
+        pipewire::{get_all_devices, get_device},
+    },
+};
+use async_trait::async_trait;
+use std::{collections::HashMap, path::PathBuf};
+
+#[async_trait]
+pub trait Executable {
+    async fn execute(&self) -> Response;
+}
+
+pub struct PingCommand {}
+
+pub struct KillCommand {}
+
+pub struct PauseCommand {
+    pub id: Option<u32>,
+}
+
+pub struct ResumeCommand {
+    pub id: Option<u32>,
+}
+
+pub struct TogglePauseCommand {
+    pub id: Option<u32>,
+}
+
+pub struct StopCommand {
+    pub id: Option<u32>,
+}
+
+pub struct IsPausedCommand {}
+
+pub struct GetStateCommand {}
+
+pub struct GetVolumeCommand {
+    pub id: Option<u32>,
+}
+
+pub struct SetVolumeCommand {
+    pub volume: Option<f32>,
+    pub id: Option<u32>,
+}
+
+pub struct GetPositionCommand {
+    pub id: Option<u32>,
+}
+
+pub struct SeekCommand {
+    pub position: Option<f32>,
+    pub id: Option<u32>,
+}
+
+pub struct GetDurationCommand {
+    pub id: Option<u32>,
+}
+
+pub struct PlayCommand {
+    pub file_path: Option<PathBuf>,
+    pub concurrent: Option<bool>,
+}
+
+pub struct GetTracksCommand {}
+
+pub struct GetCurrentInputCommand {}
+
+pub struct GetAllInputsCommand {}
+
+pub struct SetCurrentInputCommand {
+    pub name: Option<String>,
+}
+
+pub struct SetLoopCommand {
+    pub enabled: Option<bool>,
+    pub id: Option<u32>,
+}
+
+pub struct ToggleLoopCommand {
+    pub id: Option<u32>,
+}
+
+pub struct GetDaemonVersionCommand {}
+
+pub struct GetFullStateCommand {}
+
+pub struct GetHotkeysCommand {}
+
+pub struct SetHotkeyCommand {
+    pub slot: Option<String>,
+    pub file_path: Option<PathBuf>,
+}
+
+pub struct SetHotkeyActionCommand {
+    pub slot: Option<String>,
+    pub action: Option<Request>,
+}
+
+pub struct SetHotkeyKeyCommand {
+    pub slot: Option<String>,
+    pub key_chord: Option<String>,
+}
+
+pub struct SetHotkeyActionAndKeyCommand {
+    pub slot: Option<String>,
+    pub action: Option<Request>,
+    pub key_chord: Option<String>,
+}
+
+pub struct PlayHotkeyCommand {
+    pub slot: Option<String>,
+}
+
+pub struct ClearHotkeyCommand {
+    pub slot: Option<String>,
+}
+
+pub struct ClearHotkeyKeyCommand {
+    pub slot: Option<String>,
+}
+
+#[async_trait]
+impl Executable for PingCommand {
+    async fn execute(&self) -> Response {
+        Response::new(true, "pong")
+    }
+}
+
+#[async_trait]
+impl Executable for KillCommand {
+    async fn execute(&self) -> Response {
+        Response::new(true, "killed")
+    }
+}
+
+#[async_trait]
+impl Executable for PauseCommand {
+    async fn execute(&self) -> Response {
+        let mut audio_player = match get_audio_player().await {
+            Ok(player) => player.lock().await,
+            Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+        };
+        audio_player.pause(self.id);
+        Response::new(true, "Audio was paused")
+    }
+}
+
+#[async_trait]
+impl Executable for ResumeCommand {
+    async fn execute(&self) -> Response {
+        let mut audio_player = match get_audio_player().await {
+            Ok(player) => player.lock().await,
+            Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+        };
+        audio_player.resume(self.id);
+        Response::new(true, "Audio was resumed")
+    }
+}
+
+#[async_trait]
+impl Executable for TogglePauseCommand {
+    async fn execute(&self) -> Response {
+        let mut audio_player = match get_audio_player().await {
+            Ok(player) => player.lock().await,
+            Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+        };
+
+        if audio_player.get_state() == PlayerState::Stopped {
+            return Response::new(false, "Audio is not playing");
+        }
+
+        // This logic is a bit tricky with multiple tracks.
+        // If ID is provided, toggle that track.
+        // If not, toggle global pause state?
+        // For now, let's just use pause/resume based on global state if no ID.
+
+        if let Some(id) = self.id {
+            if let Some(track) = audio_player.tracks.get(&id) {
+                if track.sink.is_paused() {
+                    audio_player.resume(Some(id));
+                    Response::new(true, "Audio was resumed")
+                } else {
+                    audio_player.pause(Some(id));
+                    Response::new(true, "Audio was paused")
+                }
+            } else {
+                Response::new(false, "Track not found")
+            }
+        } else {
+            if audio_player.is_paused() {
+                audio_player.resume(None);
+                Response::new(true, "Audio was resumed")
+            } else {
+                audio_player.pause(None);
+                Response::new(true, "Audio was paused")
+            }
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for StopCommand {
+    async fn execute(&self) -> Response {
+        let mut audio_player = match get_audio_player().await {
+            Ok(player) => player.lock().await,
+            Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+        };
+        audio_player.stop(self.id);
+        Response::new(true, "Audio was stopped")
+    }
+}
+
+#[async_trait]
+impl Executable for IsPausedCommand {
+    async fn execute(&self) -> Response {
+        let audio_player = match get_audio_player().await {
+            Ok(player) => player.lock().await,
+            Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+        };
+        let is_paused = audio_player.is_paused().to_string();
+        Response::new(true, is_paused)
+    }
+}
+
+#[async_trait]
+impl Executable for GetStateCommand {
+    async fn execute(&self) -> Response {
+        let audio_player = match get_audio_player().await {
+            Ok(player) => player.lock().await,
+            Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+        };
+        let state = audio_player.get_state();
+        match serde_json::to_string(&state) {
+            Ok(json) => Response::new(true, json),
+            Err(err) => Response::new(false, format!("Failed to serialize state: {}", err)),
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for GetVolumeCommand {
+    async fn execute(&self) -> Response {
+        let mut audio_player = match get_audio_player().await {
+            Ok(player) => player.lock().await,
+            Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+        };
+        let volume = audio_player.get_volume(self.id);
+
+        if let Some(volume) = volume {
+            Response::new(true, volume.to_string())
+        } else {
+            Response::new(false, "Failed to get volume")
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for SetVolumeCommand {
+    async fn execute(&self) -> Response {
+        if let Some(volume) = self.volume {
+            let mut audio_player = match get_audio_player().await {
+                Ok(player) => player.lock().await,
+                Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+            };
+            audio_player.set_volume(volume, self.id);
+            Response::new(true, format!("Audio volume was set to {}", volume))
+        } else {
+            Response::new(false, "Invalid volume value")
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for GetPositionCommand {
+    async fn execute(&self) -> Response {
+        let audio_player = match get_audio_player().await {
+            Ok(player) => player.lock().await,
+            Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+        };
+        let position = audio_player.get_position(self.id);
+        Response::new(true, position.to_string())
+    }
+}
+
+#[async_trait]
+impl Executable for SeekCommand {
+    async fn execute(&self) -> Response {
+        if let Some(position) = self.position {
+            let mut audio_player = match get_audio_player().await {
+                Ok(player) => player.lock().await,
+                Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+            };
+            match audio_player.seek(position, self.id) {
+                Ok(_) => Response::new(true, format!("Audio position was set to {}", position)),
+                Err(err) => Response::new(false, err.to_string()),
+            }
+        } else {
+            Response::new(false, "Invalid position value")
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for GetDurationCommand {
+    async fn execute(&self) -> Response {
+        let mut audio_player = match get_audio_player().await {
+            Ok(player) => player.lock().await,
+            Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+        };
+        match audio_player.get_duration(self.id) {
+            Ok(duration) => Response::new(true, duration.to_string()),
+            Err(err) => Response::new(false, err.to_string()),
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for PlayCommand {
+    async fn execute(&self) -> Response {
+        if let Some(file_path) = &self.file_path {
+            let mut audio_player = match get_audio_player().await {
+                Ok(player) => player.lock().await,
+                Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+            };
+            match audio_player
+                .play(file_path, self.concurrent.unwrap_or(false))
+                .await
+            {
+                Ok(id) => Response::new(true, id.to_string()),
+                Err(err) => Response::new(false, err.to_string()),
+            }
+        } else {
+            Response::new(false, "Invalid file path")
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for GetTracksCommand {
+    async fn execute(&self) -> Response {
+        let audio_player = match get_audio_player().await {
+            Ok(player) => player.lock().await,
+            Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+        };
+        let tracks = audio_player.get_tracks();
+        match serde_json::to_string(&tracks) {
+            Ok(json) => Response::new(true, json),
+            Err(err) => Response::new(false, format!("Failed to serialize tracks: {}", err)),
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for GetCurrentInputCommand {
+    async fn execute(&self) -> Response {
+        let audio_player = match get_audio_player().await {
+            Ok(player) => player.lock().await,
+            Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+        };
+        if let Some(input_device_name) = &audio_player.input_device_name {
+            if let Ok(input_device) = get_device(input_device_name).await {
+                Response::new(
+                    true,
+                    format!("{} - {}", input_device.name, input_device.nick),
+                )
+            } else {
+                Response::new(false, "Failed to get current input device")
+            }
+        } else {
+            Response::new(false, "No input device selected")
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for GetAllInputsCommand {
+    async fn execute(&self) -> Response {
+        let (input_devices, _output_devices) = match get_all_devices().await {
+            Ok(devices) => devices,
+            Err(err) => return Response::new(false, format!("Failed to get devices: {}", err)),
+        };
+        let mut input_devices_strings = vec![];
+        for device in input_devices {
+            if device.name == "pwsp-virtual-mic" {
+                continue;
+            }
+
+            let string = format!("{} - {}", device.name, device.nick);
+            input_devices_strings.push(string);
+        }
+        let response_message = input_devices_strings.join("; ");
+
+        Response::new(true, response_message)
+    }
+}
+
+#[async_trait]
+impl Executable for SetCurrentInputCommand {
+    async fn execute(&self) -> Response {
+        if let Some(name) = &self.name {
+            let mut audio_player = match get_audio_player().await {
+                Ok(player) => player.lock().await,
+                Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+            };
+            match audio_player.set_current_input_device(name).await {
+                Ok(_) => Response::new(true, "Input device was set"),
+                Err(err) => Response::new(false, err.to_string()),
+            }
+        } else {
+            Response::new(false, "Invalid index value")
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for SetLoopCommand {
+    async fn execute(&self) -> Response {
+        let mut audio_player = match get_audio_player().await {
+            Ok(player) => player.lock().await,
+            Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+        };
+
+        match self.enabled {
+            Some(enabled) => {
+                audio_player.set_loop(enabled, self.id);
+                Response::new(true, format!("Loop was set to {}", enabled))
+            }
+            None => Response::new(false, "Invalid enabled value"),
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for ToggleLoopCommand {
+    async fn execute(&self) -> Response {
+        let mut audio_player = match get_audio_player().await {
+            Ok(player) => player.lock().await,
+            Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+        };
+        if let Some(id) = self.id {
+            if let Some(track) = audio_player.tracks.get_mut(&id) {
+                track.looped = !track.looped;
+                Response::new(true, format!("Loop was set to {}", track.looped))
+            } else {
+                Response::new(false, "Track not found")
+            }
+        } else {
+            // Toggle all?
+            for track in audio_player.tracks.values_mut() {
+                track.looped = !track.looped;
+            }
+            Response::new(true, "Loop toggled for all tracks")
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for GetDaemonVersionCommand {
+    async fn execute(&self) -> Response {
+        Response::new(true, env!("CARGO_PKG_VERSION"))
+    }
+}
+
+#[async_trait]
+impl Executable for GetFullStateCommand {
+    async fn execute(&self) -> Response {
+        let (input_devices, _output_devices) = match get_all_devices().await {
+            Ok(devices) => devices,
+            Err(err) => return Response::new(false, format!("Failed to get devices: {}", err)),
+        };
+        let mut all_inputs = HashMap::new();
+        let mut current_input_nick = String::new();
+
+        let audio_player = match get_audio_player().await {
+            Ok(player) => player.lock().await,
+            Err(err) => return Response::new(false, format!("Audio player error: {}", err)),
+        };
+        if let Some(current_input_name) = &audio_player.input_device_name {
+            for device in input_devices {
+                if device.name == "pwsp-virtual-mic" {
+                    continue;
+                }
+                if device.name == *current_input_name {
+                    current_input_nick = format!("{} - {}", device.name, device.nick);
+                }
+
+                all_inputs.insert(device.name, device.nick);
+            }
+        } else {
+            for device in input_devices {
+                if device.name == "pwsp-virtual-mic" {
+                    continue;
+                }
+
+                all_inputs.insert(device.name, device.nick);
+            }
+        }
+
+        let full_state = FullState {
+            state: audio_player.get_state(),
+            tracks: audio_player.get_tracks(),
+            volume: audio_player.volume,
+            current_input: current_input_nick,
+            all_inputs,
+        };
+
+        match serde_json::to_string(&full_state) {
+            Ok(json) => Response::new(true, json),
+            Err(err) => Response::new(false, format!("Failed to serialize full state: {}", err)),
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for GetHotkeysCommand {
+    async fn execute(&self) -> Response {
+        match HotkeyConfig::load() {
+            Ok(config) => match serde_json::to_string(&config) {
+                Ok(json) => Response::new(true, json),
+                Err(err) => Response::new(false, format!("Failed to serialize hotkeys: {}", err)),
+            },
+            Err(err) => Response::new(false, format!("Failed to load hotkeys: {}", err)),
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for SetHotkeyCommand {
+    async fn execute(&self) -> Response {
+        let Some(slot) = &self.slot else {
+            return Response::new(false, "Missing slot name");
+        };
+        let Some(file_path) = &self.file_path else {
+            return Response::new(false, "Missing file path");
+        };
+
+        let mut config = match HotkeyConfig::load() {
+            Ok(c) => c,
+            Err(err) => return Response::new(false, format!("Failed to load hotkeys: {}", err)),
+        };
+
+        config.set_slot(
+            slot.clone(),
+            Request::play(&file_path.to_string_lossy(), false),
+        );
+
+        match config.save() {
+            Ok(_) => Response::new(true, format!("Hotkey slot '{}' set", slot)),
+            Err(err) => Response::new(false, format!("Failed to save hotkeys: {}", err)),
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for SetHotkeyActionCommand {
+    async fn execute(&self) -> Response {
+        let Some(slot) = &self.slot else {
+            return Response::new(false, "Missing slot name");
+        };
+        let Some(action) = &self.action else {
+            return Response::new(false, "Missing or invalid action");
+        };
+
+        let mut config = match HotkeyConfig::load() {
+            Ok(c) => c,
+            Err(err) => return Response::new(false, format!("Failed to load hotkeys: {}", err)),
+        };
+
+        config.set_slot(slot.clone(), action.clone());
+
+        match config.save() {
+            Ok(_) => Response::new(true, format!("Hotkey slot '{}' set", slot)),
+            Err(err) => Response::new(false, format!("Failed to save hotkeys: {}", err)),
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for SetHotkeyKeyCommand {
+    async fn execute(&self) -> Response {
+        let Some(slot) = &self.slot else {
+            return Response::new(false, "Missing slot name");
+        };
+        let Some(key_chord) = &self.key_chord else {
+            return Response::new(false, "Missing key chord");
+        };
+
+        let mut config = match HotkeyConfig::load() {
+            Ok(c) => c,
+            Err(err) => return Response::new(false, format!("Failed to load hotkeys: {}", err)),
+        };
+
+        if !config.set_key_chord(slot, Some(key_chord.clone())) {
+            return Response::new(false, format!("Slot '{}' not found", slot));
+        }
+
+        match config.save() {
+            Ok(_) => Response::new(
+                true,
+                format!("Key chord for slot '{}' set to '{}'", slot, key_chord),
+            ),
+            Err(err) => Response::new(false, format!("Failed to save hotkeys: {}", err)),
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for SetHotkeyActionAndKeyCommand {
+    async fn execute(&self) -> Response {
+        let Some(slot) = &self.slot else {
+            return Response::new(false, "Missing slot name");
+        };
+        let Some(action) = &self.action else {
+            return Response::new(false, "Missing or invalid action");
+        };
+        let Some(key_chord) = &self.key_chord else {
+            return Response::new(false, "Missing key chord");
+        };
+
+        let mut config = match HotkeyConfig::load() {
+            Ok(c) => c,
+            Err(err) => return Response::new(false, format!("Failed to load hotkeys: {}", err)),
+        };
+
+        // Set the action and then the key chord
+        config.set_slot(slot.clone(), action.clone());
+        if !config.set_key_chord(slot, Some(key_chord.clone())) {
+            return Response::new(
+                false,
+                format!("Slot '{}' not found after setting action", slot),
+            );
+        }
+
+        match config.save() {
+            Ok(_) => Response::new(
+                true,
+                format!(
+                    "Hotkey slot '{}' set with action and key chord '{}'",
+                    slot, key_chord
+                ),
+            ),
+            Err(err) => Response::new(false, format!("Failed to save hotkeys: {}", err)),
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for PlayHotkeyCommand {
+    async fn execute(&self) -> Response {
+        let Some(slot) = &self.slot else {
+            return Response::new(false, "Missing slot name");
+        };
+
+        let config = match HotkeyConfig::load() {
+            Ok(c) => c,
+            Err(err) => return Response::new(false, format!("Failed to load hotkeys: {}", err)),
+        };
+
+        let Some(hotkey_slot) = config.find_slot(slot) else {
+            return Response::new(false, format!("Slot '{}' not found", slot));
+        };
+
+        let action = hotkey_slot.action.clone();
+
+        if let Some(cmd) = parse_command(&action) {
+            cmd.execute().await
+        } else {
+            Response::new(false, "Unknown command in hotkey slot")
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for ClearHotkeyCommand {
+    async fn execute(&self) -> Response {
+        let Some(slot) = &self.slot else {
+            return Response::new(false, "Missing slot name");
+        };
+
+        let mut config = match HotkeyConfig::load() {
+            Ok(c) => c,
+            Err(err) => return Response::new(false, format!("Failed to load hotkeys: {}", err)),
+        };
+
+        if config.remove_slot(slot) {
+            match config.save() {
+                Ok(_) => Response::new(true, format!("Hotkey slot '{}' cleared", slot)),
+                Err(err) => Response::new(false, format!("Failed to save hotkeys: {}", err)),
+            }
+        } else {
+            Response::new(false, format!("Slot '{}' not found", slot))
+        }
+    }
+}
+
+#[async_trait]
+impl Executable for ClearHotkeyKeyCommand {
+    async fn execute(&self) -> Response {
+        let Some(slot) = &self.slot else {
+            return Response::new(false, "Missing slot name");
+        };
+
+        let mut config = match HotkeyConfig::load() {
+            Ok(c) => c,
+            Err(err) => return Response::new(false, format!("Failed to load hotkeys: {}", err)),
+        };
+
+        if !config.set_key_chord(slot, None) {
+            return Response::new(false, format!("Slot '{}' not found", slot));
+        }
+
+        match config.save() {
+            Ok(_) => Response::new(true, format!("Key chord for slot '{}' cleared", slot)),
+            Err(err) => Response::new(false, format!("Failed to save hotkeys: {}", err)),
+        }
+    }
+}

pwsp-lib/src/types/config.rs

@@ -0,0 +1,220 @@
+use crate::{
+    types::socket::Request,
+    utils::{config::get_config_path, gui::ensure_pwsp_audio_dir},
+};
+use anyhow::Result;
+use serde::{Deserialize, Serialize};
+use std::{collections::HashMap, fs, path::PathBuf};
+
+#[derive(Default, Clone, Serialize, Deserialize)]
+#[serde(default)]
+pub struct DaemonConfig {
+    pub default_input_name: Option<String>,
+    pub default_volume: Option<f32>,
+}
+
+impl DaemonConfig {
+    pub fn save_to_file(&self) -> Result<()> {
+        let config_path = get_config_path()?.join("daemon.json");
+
+        if let Some(config_dir) = config_path.parent()
+            && !config_path.exists()
+        {
+            fs::create_dir_all(config_dir)?;
+        }
+
+        let config_json = serde_json::to_string_pretty(self)?;
+        fs::write(config_path, config_json.as_bytes())?;
+        Ok(())
+    }
+
+    pub fn load_from_file() -> Result<DaemonConfig> {
+        let config_path = get_config_path()?.join("daemon.json");
+        let bytes = fs::read(config_path)?;
+        match serde_json::from_slice::<DaemonConfig>(&bytes) {
+            Ok(config) => Ok(config),
+            Err(_) => Ok(DaemonConfig::default()),
+        }
+    }
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq)]
+pub enum PreferredTheme {
+    System,
+    Light,
+    Dark,
+}
+
+#[derive(Clone, Serialize, Deserialize)]
+#[serde(default)]
+pub struct GuiConfig {
+    pub scale_factor: f32,
+    pub left_panel_width: f32,
+
+    pub save_volume: bool,
+    pub save_input: bool,
+    pub save_scale_factor: bool,
+    pub pause_on_exit: bool,
+
+    pub dirs: Vec<PathBuf>,
+
+    pub preferred_theme: PreferredTheme,
+}
+
+impl Default for GuiConfig {
+    fn default() -> Self {
+        GuiConfig {
+            scale_factor: 1.0,
+            left_panel_width: 280.0,
+
+            save_volume: false,
+            save_input: false,
+            save_scale_factor: false,
+            pause_on_exit: false,
+
+            dirs: vec![ensure_pwsp_audio_dir()],
+
+            preferred_theme: PreferredTheme::System,
+        }
+    }
+}
+
+impl GuiConfig {
+    pub fn save_to_file(&mut self) -> Result<()> {
+        let config_path = get_config_path()?.join("gui.json");
+
+        if let Some(config_dir) = config_path.parent()
+            && !config_path.exists()
+        {
+            fs::create_dir_all(config_dir)?;
+        }
+
+        // Do not save scale factor if user does not want to
+        if !self.save_scale_factor {
+            self.scale_factor = 1.0;
+        }
+
+        let config_json = serde_json::to_string_pretty(self)?;
+        fs::write(config_path, config_json.as_bytes())?;
+        Ok(())
+    }
+
+    pub fn load_from_file() -> Result<GuiConfig> {
+        let config_path = get_config_path()?.join("gui.json");
+        let bytes = fs::read(config_path)?;
+        match serde_json::from_slice::<GuiConfig>(&bytes) {
+            Ok(config) => Ok(config),
+            Err(_) => Ok(GuiConfig::default()),
+        }
+    }
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct HotkeySlot {
+    pub slot: String,
+    pub action: Request,
+    pub key_chord: Option<String>,
+}
+
+#[derive(Default, Clone, Debug, Serialize, Deserialize)]
+pub struct HotkeyConfig {
+    #[serde(default)]
+    pub slots: Vec<HotkeySlot>,
+}
+
+impl HotkeyConfig {
+    pub fn config_path() -> Result<PathBuf> {
+        Ok(get_config_path()?.join("hotkeys.json"))
+    }
+
+    pub fn load() -> Result<HotkeyConfig> {
+        let path = Self::config_path()?;
+        if !path.exists() {
+            return Ok(HotkeyConfig::default());
+        }
+        let bytes = fs::read(&path)?;
+        match serde_json::from_slice::<HotkeyConfig>(&bytes) {
+            Ok(config) => Ok(config),
+            Err(e) => Err(e.into()),
+        }
+    }
+
+    pub fn save(&self) -> Result<()> {
+        let path = Self::config_path()?;
+        if let Some(dir) = path.parent()
+            && !dir.exists()
+        {
+            fs::create_dir_all(dir)?;
+        }
+        let json = serde_json::to_string_pretty(self)?;
+        fs::write(path, json.as_bytes())?;
+        Ok(())
+    }
+
+    pub fn find_slot(&self, slot: &str) -> Option<&HotkeySlot> {
+        self.slots.iter().find(|s| s.slot == slot)
+    }
+
+    pub fn find_slot_mut(&mut self, slot: &str) -> Option<&mut HotkeySlot> {
+        self.slots.iter_mut().find(|s| s.slot == slot)
+    }
+
+    pub fn set_slot(&mut self, slot: String, action: Request) {
+        if let Some(existing) = self.find_slot_mut(&slot) {
+            existing.action = action;
+        } else {
+            self.slots.push(HotkeySlot {
+                slot,
+                action,
+                key_chord: None,
+            });
+        }
+    }
+
+    pub fn set_key_chord(&mut self, slot: &str, key_chord: Option<String>) -> bool {
+        if let Some(existing) = self.find_slot_mut(slot) {
+            existing.key_chord = key_chord;
+            true
+        } else {
+            false
+        }
+    }
+
+    pub fn remove_slot(&mut self, slot: &str) -> bool {
+        let len = self.slots.len();
+        self.slots.retain(|s| s.slot != slot);
+        self.slots.len() != len
+    }
+
+    /// Returns pairs of slot names that share the same key chord.
+    pub fn find_conflicts(&self) -> Vec<(&str, &str)> {
+        let mut conflicts = vec![];
+        let mut chord_map: HashMap<&str, Vec<&str>> = HashMap::new();
+
+        for s in &self.slots {
+            if let Some(chord) = &s.key_chord {
+                chord_map.entry(chord.as_str()).or_default().push(&s.slot);
+            }
+        }
+
+        for slots in chord_map.values() {
+            if slots.len() > 1 {
+                for i in 0..slots.len() {
+                    for j in (i + 1)..slots.len() {
+                        conflicts.push((slots[i], slots[j]));
+                    }
+                }
+            }
+        }
+
+        conflicts
+    }
+
+    /// Find which slot(s) have the given key chord.
+    pub fn slots_for_chord(&self, chord: &str) -> Vec<&HotkeySlot> {
+        self.slots
+            .iter()
+            .filter(|s| s.key_chord.as_deref() == Some(chord))
+            .collect()
+    }
+}

pwsp-lib/src/types/gui.rs

@@ -0,0 +1,76 @@
+use crate::types::{
+    audio_player::{PlayerState, TrackInfo},
+    config::HotkeyConfig,
+};
+
+use egui::Id;
+
+use std::{
+    collections::{HashMap, HashSet},
+    path::PathBuf,
+    time::Instant,
+};
+
+#[derive(Default, Debug)]
+pub struct TrackUiState {
+    pub position_slider_value: f32,
+    pub volume_slider_value: f32,
+
+    pub position_dragged: bool,
+    pub volume_dragged: bool,
+
+    pub ignore_position_update_until: Option<Instant>,
+    pub ignore_volume_update_until: Option<Instant>,
+}
+
+#[derive(Default, Debug)]
+pub struct AppState {
+    pub search_query: String,
+
+    pub track_ui_states: HashMap<u32, TrackUiState>,
+
+    pub show_settings: bool,
+    pub volume_dragged: bool,
+    pub force_focus_search: bool,
+
+    pub volume_slider_value: f32,
+
+    pub search_field_id: Option<Id>,
+
+    pub ignore_volume_update_until: Option<Instant>,
+
+    pub current_dir: Option<PathBuf>,
+    pub dirs: Vec<PathBuf>,
+    pub dirs_to_remove: HashSet<PathBuf>,
+
+    pub listed_files: HashSet<PathBuf>,
+    pub listed_dirs: HashSet<PathBuf>,
+    pub dir_cache: HashMap<PathBuf, Vec<PathBuf>>,
+
+    pub show_hotkeys: bool,
+    pub hotkey_capture_active: bool,
+
+    pub hotkey_config: HotkeyConfig,
+    pub hotkey_search_query: String,
+
+    pub assigning_hotkey_slot: Option<String>,
+    pub assigning_hotkey_for_file: Option<PathBuf>,
+}
+
+#[derive(Default, Debug, Clone)]
+pub struct AudioPlayerState {
+    pub state: PlayerState,
+    pub new_state: Option<PlayerState>,
+
+    pub tracks: Vec<TrackInfo>,
+
+    pub volume: f32, // Master volume
+
+    pub current_input: String,
+    pub all_inputs: HashMap<String, String>,
+    pub all_inputs_sorted: Vec<(String, String)>,
+
+    pub is_daemon_running: bool,
+
+    pub hotkey_config: Option<HotkeyConfig>,
+}

pwsp-lib/src/types/mod.rs

@@ -0,0 +1,6 @@
+pub mod audio_player;
+pub mod commands;
+pub mod config;
+pub mod gui;
+pub mod pipewire;
+pub mod socket;

pwsp-lib/src/types/pipewire.rs

@@ -0,0 +1,74 @@
+#[derive(Debug)]
+pub struct Terminate {}
+
+#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
+pub struct Port {
+    pub node_id: u32,
+    pub port_id: u32,
+
+    pub name: String,
+}
+
+#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
+pub enum DeviceType {
+    Input,
+    Output,
+}
+
+#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
+pub struct AudioDevice {
+    pub id: u32,
+
+    pub nick: String,
+    pub name: String,
+
+    pub device_type: DeviceType,
+
+    pub input_fl: Option<Port>,
+    pub input_fr: Option<Port>,
+    pub output_fl: Option<Port>,
+    pub output_fr: Option<Port>,
+}
+
+impl AudioDevice {
+    pub fn new(
+        id: u32,
+        nick: Option<&str>,
+        description: Option<&str>,
+        name: Option<&str>,
+        device_type: DeviceType,
+    ) -> Self {
+        Self {
+            id,
+            nick: nick
+                .or(description)
+                .or(name)
+                .unwrap_or_default()
+                .to_string(),
+            name: name.unwrap_or_default().to_string(),
+            device_type,
+            input_fl: None,
+            input_fr: None,
+            output_fl: None,
+            output_fr: None,
+        }
+    }
+
+    pub fn add_port(&mut self, port: Port) {
+        match port.name.as_str() {
+            "input_FL" => self.input_fl = Some(port),
+            "input_FR" => self.input_fr = Some(port),
+            "output_FL" | "capture_FL" => self.output_fl = Some(port),
+            "output_FR" | "capture_FR" => self.output_fr = Some(port),
+            "input_MONO" => {
+                self.input_fl = Some(port.clone());
+                self.input_fr = Some(port);
+            }
+            "output_MONO" | "capture_MONO" => {
+                self.output_fl = Some(port.clone());
+                self.output_fr = Some(port);
+            }
+            _ => {}
+        }
+    }
+}

pwsp-lib/src/types/socket.rs

@@ -0,0 +1,240 @@
+use serde::{Deserialize, Serialize};
+use std::collections::HashMap;
+
+pub const MAX_MESSAGE_SIZE: usize = 128 * 1024;
+
+#[derive(Default, Debug, Clone, Serialize, Deserialize, PartialEq)]
+pub struct Request {
+    pub name: String,
+    pub args: HashMap<String, String>,
+}
+
+impl Request {
+    pub fn new<T: AsRef<str>>(function_name: T, data: Vec<(T, T)>) -> Self {
+        let hashmap_data: HashMap<String, String> = data
+            .into_iter()
+            .map(|(key, value)| (key.as_ref().to_string(), value.as_ref().to_string()))
+            .collect();
+
+        Request {
+            name: function_name.as_ref().to_string(),
+            args: hashmap_data,
+        }
+    }
+
+    pub fn ping() -> Self {
+        Request::new("ping", vec![])
+    }
+
+    pub fn kill() -> Self {
+        Request::new("kill", vec![])
+    }
+
+    pub fn pause(id: Option<u32>) -> Self {
+        let mut args = vec![];
+        let id_str;
+        if let Some(id) = id {
+            id_str = id.to_string();
+            args.push(("id", id_str.as_str()));
+        }
+        Request::new("pause", args)
+    }
+
+    pub fn resume(id: Option<u32>) -> Self {
+        let mut args = vec![];
+        let id_str;
+        if let Some(id) = id {
+            id_str = id.to_string();
+            args.push(("id", id_str.as_str()));
+        }
+        Request::new("resume", args)
+    }
+
+    pub fn toggle_pause(id: Option<u32>) -> Self {
+        let mut args = vec![];
+        let id_str;
+        if let Some(id) = id {
+            id_str = id.to_string();
+            args.push(("id", id_str.as_str()));
+        }
+        Request::new("toggle_pause", args)
+    }
+
+    pub fn stop(id: Option<u32>) -> Self {
+        let mut args = vec![];
+        let id_str;
+        if let Some(id) = id {
+            id_str = id.to_string();
+            args.push(("id", id_str.as_str()));
+        }
+        Request::new("stop", args)
+    }
+
+    pub fn play(file_path: &str, concurrent: bool) -> Self {
+        Request::new(
+            "play",
+            vec![
+                ("file_path", file_path),
+                ("concurrent", &concurrent.to_string()),
+            ],
+        )
+    }
+
+    pub fn get_is_paused() -> Self {
+        Request::new("is_paused", vec![])
+    }
+
+    pub fn get_volume(id: Option<u32>) -> Self {
+        let mut args = vec![];
+        let id_str;
+        if let Some(id) = id {
+            id_str = id.to_string();
+            args.push(("id", id_str.as_str()));
+        }
+        Request::new("get_volume", args)
+    }
+
+    pub fn get_position(id: Option<u32>) -> Self {
+        let mut args = vec![];
+        let id_str;
+        if let Some(id) = id {
+            id_str = id.to_string();
+            args.push(("id", id_str.as_str()));
+        }
+        Request::new("get_position", args)
+    }
+
+    pub fn get_duration(id: Option<u32>) -> Self {
+        let mut args = vec![];
+        let id_str;
+        if let Some(id) = id {
+            id_str = id.to_string();
+            args.push(("id", id_str.as_str()));
+        }
+        Request::new("get_duration", args)
+    }
+
+    pub fn get_state() -> Self {
+        Request::new("get_state", vec![])
+    }
+
+    pub fn get_tracks() -> Self {
+        Request::new("get_tracks", vec![])
+    }
+
+    pub fn get_input() -> Self {
+        Request::new("get_input", vec![])
+    }
+
+    pub fn get_inputs() -> Self {
+        Request::new("get_inputs", vec![])
+    }
+
+    pub fn set_volume(volume: f32, id: Option<u32>) -> Self {
+        let mut args = vec![("volume".to_string(), volume.to_string())];
+        if let Some(id) = id {
+            args.push(("id".to_string(), id.to_string()));
+        }
+        Request::new("set_volume".to_string(), args)
+    }
+
+    pub fn seek(position: f32, id: Option<u32>) -> Self {
+        let mut args = vec![("position".to_string(), position.to_string())];
+        if let Some(id) = id {
+            args.push(("id".to_string(), id.to_string()));
+        }
+        Request::new("seek".to_string(), args)
+    }
+
+    pub fn set_input(name: &str) -> Self {
+        Request::new("set_input", vec![("input_name", name)])
+    }
+
+    pub fn set_loop(enabled: &str, id: Option<u32>) -> Self {
+        let mut args = vec![("enabled".to_string(), enabled.to_string())];
+        if let Some(id) = id {
+            args.push(("id".to_string(), id.to_string()));
+        }
+        Request::new("set_loop".to_string(), args)
+    }
+
+    pub fn toggle_loop(id: Option<u32>) -> Self {
+        let mut args = vec![];
+        let id_str;
+        if let Some(id) = id {
+            id_str = id.to_string();
+            args.push(("id", id_str.as_str()));
+        }
+        Request::new("toggle_loop", args)
+    }
+
+    pub fn get_daemon_version() -> Self {
+        Request::new("get_daemon_version", vec![])
+    }
+
+    pub fn get_full_state() -> Self {
+        Request::new("get_full_state", vec![])
+    }
+
+    pub fn get_hotkeys() -> Self {
+        Request::new("get_hotkeys", vec![])
+    }
+
+    pub fn set_hotkey(slot: &str, file_path: &str) -> Self {
+        Request::new("set_hotkey", vec![("slot", slot), ("file_path", file_path)])
+    }
+
+    pub fn set_hotkey_key(slot: &str, key_chord: &str) -> Self {
+        Request::new(
+            "set_hotkey_key",
+            vec![("slot", slot), ("key_chord", key_chord)],
+        )
+    }
+
+    pub fn clear_hotkey(slot: &str) -> Self {
+        Request::new("clear_hotkey", vec![("slot", slot)])
+    }
+
+    pub fn play_hotkey(slot: &str) -> Self {
+        Request::new("play_hotkey", vec![("slot", slot)])
+    }
+
+    pub fn set_hotkey_action(slot: &str, action: &Request) -> Self {
+        let action_json = serde_json::to_string(action).unwrap_or_default();
+        Request::new(
+            "set_hotkey_action",
+            vec![("slot", slot), ("action", &action_json)],
+        )
+    }
+
+    pub fn clear_hotkey_key(slot: &str) -> Self {
+        Request::new("clear_hotkey_key", vec![("slot", slot)])
+    }
+
+    pub fn set_hotkey_action_and_key(slot: &str, action: &Request, key_chord: &str) -> Self {
+        let action_json = serde_json::to_string(action).unwrap_or_default();
+        Request::new(
+            "set_hotkey_action_and_key",
+            vec![
+                ("slot", slot),
+                ("action", &action_json),
+                ("key_chord", key_chord),
+            ],
+        )
+    }
+}
+
+#[derive(Default, Debug, Clone, Serialize, Deserialize)]
+pub struct Response {
+    pub status: bool,
+    pub message: String,
+}
+
+impl Response {
+    pub fn new<T: AsRef<str>>(status: bool, message: T) -> Self {
+        Response {
+            status,
+            message: message.as_ref().to_string(),
+        }
+    }
+}