Store list of members in channel and fix topic display

src/main.rs

@@ -92,10 +92,11 @@ impl Cri {
 
         let command = tokens.next().unwrap();
         match command {
-            "/join" => self.handle_join_command(&mut tokens),
-            "/part" => self.handle_part_command(&mut tokens),
-            "/query" => self.handle_query_command(tokens),
-            _ => todo!(),
+            "/join" | "/j" => self.handle_join_command(&mut tokens),
+            "/part" | "/p" => self.handle_part_command(&mut tokens),
+            "/query" | "/q" => self.handle_query_command(tokens),
+            "/list" => self.handle_list_command(),
+            _ => (),
         }
     }
 
@@ -155,6 +156,13 @@ impl Cri {
         self.message_log
             .set_active(Some(tokens.next().unwrap().to_string()));
     }
+
+    fn handle_list_command(&self) {
+        self.input_tx
+            .borrow()
+            .send(IrcCommand::LIST(None, None).into())
+            .unwrap()
+    }
 }
 
 impl Application for Cri {
@@ -266,10 +274,6 @@ impl Application for Cri {
                         );
                     }
 
-                    IrcCommand::TOPIC(channel, topic) => {
-                        self.message_log.on_topic(channel, topic.clone());
-                    }
-
                     IrcCommand::PRIVMSG(msgtarget, content)
                     | IrcCommand::NOTICE(msgtarget, content) => {
                         let channel = message.response_target().unwrap_or(msgtarget).to_string();
@@ -282,9 +286,21 @@ impl Application for Cri {
                             &timestamp,
                         );
                     }
+
                     IrcCommand::Response(Response::RPL_WELCOME, args) => {
                         self.nickname = args[0].clone()
                     }
+                    IrcCommand::Response(Response::RPL_NAMREPLY, args) => {
+                        let channel = &args[2];
+                        let names: Vec<_> = args[3].split_ascii_whitespace().collect();
+                        self.message_log.on_names_reply(channel, names);
+                    }
+                    IrcCommand::Response(Response::RPL_TOPIC, args) => {
+                        let channel = &args[1];
+                        let topic = &args[2];
+                        self.message_log.on_topic(channel, topic);
+                    }
+
                     IrcCommand::BATCH(tag, subcommand, params) => {
                         self.message_log.on_batch(
                             &self.nickname,
@@ -294,6 +310,7 @@ impl Application for Cri {
                             &timestamp,
                         );
                     }
+
                     _ => self.message_log.on_other(&message.to_string()),
                 }
             }

src/message_log.rs

@@ -14,6 +14,7 @@ use std::collections::{HashMap, HashSet};
 pub struct Channel {
     pub messages: Vec<IrcMessage>,
     pub message_ids: HashSet<String>,
+    pub names: Vec<String>,
 
     pub topic: Option<String>,
     pub unread_messages: i32,
@@ -324,7 +325,11 @@ impl<'a> MessageLog {
                     .clone()
                     .unwrap_or("Server messages".to_string())
             ),
-            text(channel.topic.clone().unwrap_or_default())
+            text(format!(
+                "{} members - {}",
+                channel.names.len(),
+                channel.topic.as_deref().unwrap_or_default()
+            ))
         ]);
 
         let messages = channel
@@ -456,7 +461,13 @@ impl<'a> MessageLog {
         .width(Length::Fill)
     }
 
-    pub fn on_topic(&mut self, channel: &str, topic: Option<String>) {
-        self.get_mut(Some(channel.to_string())).topic = topic;
+    pub fn on_topic(&mut self, channel: &str, topic: &str) {
+        self.get_mut(Some(channel.to_string())).topic = Some(topic.to_owned());
+    }
+
+    pub fn on_names_reply(&mut self, channel: &str, names: Vec<&str>) {
+        self.get_mut(Some(channel.to_string()))
+            .names
+            .extend(names.iter().map(|&n| str::to_string(n)));
     }
 }