use anyhow::{anyhow, Result};use client::ParticipantIndex;use client::{proto, User};use collections::HashMap;use gpui::WeakEntity;pub use livekit_client_macos::Frame;pub use livekit_client_macos::{RemoteAudioTrack, RemoteVideoTrack};use project::Project;use std::sync::Arc; #[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) {            Some(proto::participant_location::Variant::SharedProject(project)) => {                Ok(Self::SharedProject {                    project_id: project.id,                })            }            Some(proto::participant_location::Variant::UnsharedProject(_)) => {                Ok(Self::UnsharedProject)            }            Some(proto::participant_location::Variant::External(_)) => Ok(Self::External),            None => Err(anyhow!("participant location was not provided")),        }    }} #[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        )    }} #[derive(Clone, Debug)]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<livekit_client_macos::Sid, Arc<RemoteVideoTrack>>,    pub audio_tracks: HashMap<livekit_client_macos::Sid, Arc<RemoteAudioTrack>>,} impl RemoteParticipant {    pub fn has_video_tracks(&self) -> bool {        !self.video_tracks.is_empty()    }     pub fn can_write(&self) -> bool {        matches!(            self.role,            proto::ChannelRole::Admin | proto::ChannelRole::Member        )    }}