+ List channels backbone in place

Technically everything is there but I haven't really tested anything yet
Will 100% need fixing + optimizing

+ Switch server Command also working
! Requires a jwt check to avoid expensive+unnecssary network /login hits
! Probably have to hold onto the input to avoid spam somehow

ChannelCache is nearly ready for manipulation

tui/src/cache.rs

@@ -12,32 +12,36 @@
  *
  */
 
-use crate::config::ServerMeta;
 use crate::api_types::{Channel, Message};
+use crate::net;
 use crate::command::Command;
-use crate::config::ConfigFile;
+use crate::config::{ConfigFile, ServerConfig};
 
 use std::collections::HashMap;
-use hyper::Request;
+
+type ChannelMeta = Channel;
 
 struct ChannelCache {
-    meta: Channel,
-    messages: Vec<Message>
+    pub meta: ChannelMeta,
+    pub messages: Vec<Message>
 }
 
 struct ServerCache {
-    meta: ServerMeta,
+    // container for the relevant user/serer meta data
+    // We use both parts in order to to maintain jwt's within the cache
+    meta: ServerConfig,
     channels: Vec<ChannelCache>
 }
 
 pub struct Cache {
     // url -> Cache
     servers: HashMap<String, ServerCache>,
-    active_server: Option<ServerMeta>
+    active_server: Option<ServerConfig>,
+    active_text: Option<ChannelMeta>
 }
 
 impl ServerCache {
-    pub fn from(meta: ServerMeta, channels: Vec<ChannelCache>) -> Self {
+    pub fn from(meta: ServerConfig, channels: Vec<ChannelCache>) -> Self {
         ServerCache { meta, channels }
     }
 }
@@ -45,15 +49,16 @@ impl ServerCache {
 impl Cache {
     pub fn from(config: &ConfigFile) -> Cache {
         let mut servers = HashMap::new();
-        for cfg in &config.servers {
-            let i_server_cache = ServerCache::from(cfg.server.clone(), Vec::new());
-            let url = i_server_cache.meta.url.clone();
+        for servercfg in &config.servers {
+            let i_server_cache = ServerCache::from(servercfg.clone(), Vec::new());
+            let url = i_server_cache.meta.server.url.clone();
             servers.insert(url, i_server_cache);
         }
 
         Cache {
             servers,
-            active_server: None
+            active_server: None,
+            active_text: None
         }
     }
 }
@@ -67,23 +72,43 @@ impl Cache {
         }
     }
     pub async fn switch_server(&mut self, host: &str) -> Command {
-        if let Some(srv_cache) = self.servers.get(host) {
-            Command::Failure(format!("Not implemented yet!"))
+        // TODO: implement some better fuzzy finding for better ergonomics
+        // Reallt though the ux is still pretty bad here
+        // Also it greedily matches so if two servers are behind one domain we're kinda fucked
+        let mut found = false;
+        let mut err_msg = String::from("Nothing found");
+        for (url, meta) in self.servers.iter_mut() {
+            if url.contains(host) {
+                let id = meta.meta.user.id;
+                let secret = &meta.meta.user.secret;
+                found = match net::login(url, id, secret).await {
+                    Ok(jwt) => {
+                        meta.meta.user.jwt = Some(jwt);
+                        self.active_server = Some(meta.meta.clone());
+                        // Setup websocket to server or something idk
+                        self.active_text = None;
+                        true
+                    },
+                    Err(e) => {  // TODO: some kind of logging here
+                        err_msg = format!("{}", e);
+                        meta.meta.user.jwt = None;
+                        false
+                    }
+                };
+                meta.meta.user.jwt = Some(String::from("asdf"));
+                break
+            }
+        }
+
+        if found {
+            Command::Text(format!("logged in - /lc to list to list channels"))
         } else {
-            Command::Failure(format!("Host {{ {} }} not found", host))
+            Command::Failure(err_msg)
         }
     }
 
     pub async fn send_message(&mut self, id: &str) -> Command {
-        use hyper::body::HttpBody as _;
-        use hyper::Client;
-
         if let Some(server) = self.active_server.as_ref() {
-            let url = format!("{}/message/send", server.url);
-            let request = Request::builder()
-                .method("POST")
-                .uri(url).body(()).unwrap();
-
             Command::Failure(format!("Not implemented yet!"))
         } else {
             Command::Failure(format!("No active server+channel to send message to"))
@@ -97,4 +122,26 @@ impl Cache {
         }
         Command::Text(hosts)
     }
+
+    pub fn list_channels(&self) -> Command {
+        use crate::api_types;
+        if let Some(serv) = &self.active_server {
+            // Find the server we're whose channels we want
+            let (_, cache) = self.servers.iter()
+                .find(|(url, _)| url == &&serv.server.url).unwrap();
+
+            let mut buffer = String::from("! Channels ");
+            for (i, chan) in cache.channels.iter().enumerate() {
+                // NOTE only list out text channels for now
+                // another command will be provided for voice channels later
+                if chan.meta.r#type == api_types::TEXT_CHANNEL {
+                    buffer.push_str(&format!("[{}] {}, ", i, chan.meta.r#type));
+                }
+            }
+
+            Command::Text(buffer)
+        } else {
+            Command::Failure(format!("No active server"))
+        }
+    }
 }