skeleton code ready to start pluggin in async fetch calls to remote servers

Some model still has to be built to put RTC somewhere
Also stdout still requires async handling

tui/.gitignore

@@ -1 +1,2 @@
 target/
+tmp/

tui/src/cache.rs

@@ -46,13 +46,25 @@ impl Default for Cache {
 
 impl Cache {
     pub async fn switch_channel(&mut self, id: u64) -> Command {
-        todo!()
+        if let Some(host) = self.active_server.as_ref() {
+            Command::Failure(format!("Not implemented yet!"))
+        } else {
+            Command::Failure(format!("No server selected yet"))
+        }
     }
     pub async fn switch_server(&mut self, host: &str) -> Command {
-        todo!()
+        if let Some(srv_cache) = self.servers.get(host) {
+            Command::Failure(format!("Not implemented yet!"))
+        } else {
+            Command::Failure(format!("Host {{ {} }} not found", host))
+        }
     }
 
     pub async fn send_message(&mut self, id: &str) -> Command {
-        todo!()
+        if let Some(host) = self.active_server.as_ref() {
+            Command::Failure(format!("Not implemented yet!"))
+        } else {
+            Command::Failure(format!("No active server+channel to send message to"))
+        }
     }
 }

tui/src/command.rs

@@ -10,7 +10,7 @@ pub enum Command {
     // Send regular message
     Message(String),
     // Command that failed with some message
-    Failure(&'static str),
+    Failure(String),
 }
 
 impl Command {
@@ -46,19 +46,19 @@ impl Command {
         if s.starts_with("/chan") {
             match Command::parse_chan_id(s.as_ref()) {
                 Some(id) => Command::Channel(id),
-                None => Command::Failure("no valid id(u64) provided")
+                None => Command::Failure("no valid id(u64) provided".into())
             }
         } else if s.starts_with("/serv") {
             match Command::parse_hostname(s.as_ref()) {
                 Some(hostname) => Command::Server(hostname),
-                None => Command::Failure("no hostname provided")
+                None => Command::Failure("no hostname provided".into())
             }
         } else if s.starts_with("/help") {
             Command::Help
         }
         else {
             if s.starts_with("/") {
-                Command::Failure("command not found")
+                Command::Failure("command not found".into())
             } else {
                 Command::Message(s.into())
             }
@@ -87,7 +87,7 @@ impl Command {
             ]),
             Failure(msg) => Spans::from(vec![
                 Span::styled("! error ", Style::default().add_modifier(Modifier::BOLD)),
-                Span::raw(*msg)
+                Span::raw(msg)
             ])
         }
     }