From eac3d4bc3fe5ff95a1c2e1e3ee00d079533afe5b Mon Sep 17 00:00:00 2001
From: Amanda Graven <amanda@amandag.net>
Date: Mon, 18 Oct 2021 20:59:00 +0200
Subject: [PATCH] Basic timeline and member list

---
 src/sync.rs       | 18 +++++++++--
 src/ui/session.rs | 76 ++++++++++++++++++++++++++++++++++++++++++-----
 2 files changed, 84 insertions(+), 10 deletions(-)

diff --git a/src/sync.rs b/src/sync.rs
index b77a760..7c544e1 100644
--- a/src/sync.rs
+++ b/src/sync.rs
@@ -6,7 +6,11 @@ use std::sync::{
 };
 
 use crossbeam_channel::Sender;
-use matrix_sdk::{ruma::RoomId, Client};
+use matrix_sdk::{
+    room::Joined,
+    ruma::{RoomId, UserId},
+    Client, RoomMember,
+};
 use tokio::sync::{mpsc::UnboundedReceiver, Notify};
 use url::Url;
 
@@ -20,16 +24,20 @@ pub enum Request {
     Restore(matrix_sdk::Session),
     /// Get the calculated name for a room
     RoomName(RoomId),
+    /// Get a member from a joined room
+    JoinedMember(Joined, UserId),
     /// Stop syncing
     Quit,
 }
 
-/// Response to a request.
+/// Response produced while running the sync loop.
 pub enum Response {
     /// Response from the synchronization loop
     Sync(matrix_sdk::deserialized_responses::SyncResponse),
     /// Calculated the name for a room
     RoomName(RoomId, String),
+    /// Retrived a member frmo a joined room.
+    JoinedMember(RoomId, RoomMember),
     /// An error happened while responding to a request
     Error(matrix_sdk::Error),
 }
@@ -75,6 +83,7 @@ pub fn run(client: Client, mut request: UnboundedReceiver<Request>, response: Se
     });
 }
 
+/// Process an incoming request.
 async fn handle_request(
     request: Request,
     client: Client,
@@ -88,6 +97,11 @@ async fn handle_request(
             Some(room) => response.send(Response::RoomName(room_id, room.display_name().await?))?,
             None => (),
         },
+        Request::JoinedMember(room, user) => {
+            if let Some(member) = room.get_member(&user).await? {
+                response.send(Response::JoinedMember(room.room_id().clone(), member));
+            }
+        }
         Request::Quit => {
             dbg!(quit.store(true, Ordering::SeqCst));
             QUIT.notify_one();
diff --git a/src/ui/session.rs b/src/ui/session.rs
index e6ed39d..50ded11 100644
--- a/src/ui/session.rs
+++ b/src/ui/session.rs
@@ -1,11 +1,17 @@
-use std::{borrow::Cow, collections::HashMap};
+use std::{
+    borrow::Cow,
+    collections::{HashMap, HashSet},
+};
 
 use crossbeam_channel::Receiver;
-use eframe::egui::{self, Color32, ScrollArea, Sense};
+use eframe::egui::{self, Color32, Label, ScrollArea, Sense};
 use matrix_sdk::{
     deserialized_responses::SyncResponse,
     room::Room,
-    ruma::{events::AnyRoomEvent, RoomId, UserId},
+    ruma::{
+        events::{room::message::MessageType, AnyMessageEvent, AnyRoomEvent},
+        RoomId, UserId,
+    },
     Client, RoomMember,
 };
 use serde::{Deserialize, Serialize};
@@ -39,6 +45,8 @@ pub struct Timeline {
     messages: Vec<AnyRoomEvent>,
     #[serde(skip)]
     member: HashMap<UserId, RoomMember>,
+    #[serde(skip)]
+    member_pending: HashSet<UserId>,
 }
 
 impl RoomList {
@@ -136,17 +144,62 @@ impl App {
 
         egui::SidePanel::right(Id::MemberList).show(ctx, |ui| {
             ui.heading("Members");
+            let timeline = self.timelines.entry(room.room_id().clone()).or_default();
+            for member in timeline.member.values() {
+                ui.label(member.name());
+            }
         });
 
-        let room = match room {
-            Room::Joined(room) => room,
+        let joined = match room {
+            Room::Joined(ref room) => room,
             _ => return,
         };
-        let timeline = self.timelines.entry(room.room_id().clone()).or_default();
+
         egui::CentralPanel::default().show(ctx, |ui| {
             ScrollArea::auto_sized().show(ui, |ui| {
-                for message in timeline.messages.iter() {
-                    ui.label(message.sender().as_str());
+                let timeline = self.timelines.entry(room.room_id().clone()).or_default();
+                for event in timeline.messages.iter() {
+                    let sender = event.sender();
+                    let name = match timeline.member.get(sender) {
+                        Some(member) => member.name(),
+                        None => {
+                            if !timeline.member_pending.contains(sender) {
+                                self.request
+                                    .send(sync::Request::JoinedMember(
+                                        joined.clone(),
+                                        sender.clone(),
+                                    ))
+                                    .ok();
+                            }
+                            sender.localpart()
+                        }
+                    };
+                    match event {
+                        AnyRoomEvent::Message(AnyMessageEvent::RoomMessage(msg)) => {
+                            match &msg.content.msgtype {
+                                MessageType::Text(text) => {
+                                    ui.add(Label::new(name).strong())
+                                        .on_hover_text(event.sender());
+                                    ui.label(&text.body);
+                                }
+                                MessageType::Notice(notice) => {
+                                    ui.add(Label::new(name).strong())
+                                        .on_hover_text(event.sender());
+                                    ui.add(egui::Label::new(&notice.body).weak());
+                                }
+                                MessageType::ServerNotice(notice) => {
+                                    ui.add(Label::new(name).strong())
+                                        .on_hover_text(event.sender());
+                                    ui.add(egui::Label::new(&notice.body).weak());
+                                }
+                                MessageType::Emote(emote) => {
+                                    ui.label(format!("* {} {}", name, emote.body));
+                                }
+                                _ => (),
+                            }
+                        }
+                        _ => (),
+                    }
                 }
             })
         });
@@ -157,6 +210,13 @@ impl App {
             sync::Response::RoomName(room, name) => {
                 self.room_list.room_name.insert(room, name);
             }
+            sync::Response::JoinedMember(room, member) => {
+                self.timelines
+                    .entry(room)
+                    .or_default()
+                    .member
+                    .insert(member.user_id().clone(), member);
+            }
             sync::Response::Error(e) => {
                 self.error = Some(e.to_string());
             }