use anyhow::{Context as _, Result};use client::{ParticipantIndex, User, proto};use collections::HashMap;use gpui::WeakEntity;use livekit_client::AudioStream;use project::Project;use std::sync::Arc; pub use livekit_client::TrackSid;pub use livekit_client::{RemoteAudioTrack, RemoteVideoTrack}; #[derive(Copy, Clone, Debug, Eq, PartialEq)]pub enum ParticipantLocation {    SharedProject { project_id: u64 },    UnsharedProject,    External,} impl ParticipantLocation {    pub fn from_proto(location: Option<proto::ParticipantLocation>) -> Result<Self> {        match location            .and_then(|l| l.variant)            .context("participant location was not provided")?        {            proto::participant_location::Variant::SharedProject(project) => {                Ok(Self::SharedProject {                    project_id: project.id,                })            }            proto::participant_location::Variant::UnsharedProject(_) => Ok(Self::UnsharedProject),            proto::participant_location::Variant::External(_) => Ok(Self::External),        }    }} #[derive(Clone, Default)]pub struct LocalParticipant {    pub projects: Vec<proto::ParticipantProject>,    pub active_project: Option<WeakEntity<Project>>,    pub role: proto::ChannelRole,} impl LocalParticipant {    pub fn can_write(&self) -> bool {        matches!(            self.role,            proto::ChannelRole::Admin | proto::ChannelRole::Member        )    }} pub struct RemoteParticipant {    pub user: Arc<User>,    pub peer_id: proto::PeerId,    pub role: proto::ChannelRole,    pub projects: Vec<proto::ParticipantProject>,    pub location: ParticipantLocation,    pub participant_index: ParticipantIndex,    pub muted: bool,    pub speaking: bool,    pub video_tracks: HashMap<TrackSid, RemoteVideoTrack>,    pub audio_tracks: HashMap<TrackSid, (RemoteAudioTrack, AudioStream)>,} impl RemoteParticipant {    pub fn has_video_tracks(&self) -> bool {        return !self.video_tracks.is_empty();    }     pub fn can_write(&self) -> bool {        matches!(            self.role,            proto::ChannelRole::Admin | proto::ChannelRole::Member        )    }}