feat: allow starting a new chat

communication

crates/daemon/migrations/20260214_1_init.sql

@@ -1,5 +0,0 @@
-CREATE TABLE IF NOT EXISTS messages (
-    id INTEGER PRIMARY KEY AUTOINCREMENT,
-    text TEXT NOT NULL,
-    is_user BOOL NOT NULL
-);

crates/daemon/migrations/20260222_1_init.sql

@@ -0,0 +1,12 @@
+CREATE TABLE IF NOT EXISTS messages (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    chat_id INTEGER NOT NULL,
+    timestamp DATETIME DEFAULT CURRENT_TIMESTAMP,
+    text TEXT NOT NULL,
+    is_user BOOL NOT NULL,
+
+    UNIQUE(id, chat_id)
+);
+
+CREATE INDEX idx_message_timestamp ON messages(timestamp);
+CREATE INDEX idx_message_chat_id ON messages(chat_id);

crates/daemon/src/chatpersistence.rs

@@ -1,22 +1,29 @@
 use anyhow::Result;
 use directories::ProjectDirs;
 use sqlx::sqlite::SqliteConnectOptions;
-use sqlx::Row;
+use sqlx::{Row, SqlitePool};
-use sqlx::SqlitePool;
 use tokio::fs;
 use tonic::async_trait;
 
 #[derive(Debug, sqlx::FromRow)]
-pub struct ChatMessage {
+pub struct ChatMessageData {
     pub id: i64,
+    pub chat_id: i64,
     pub text: String,
     pub is_user: bool,
 }
 
 #[async_trait]
 pub trait ChatRepository {
-    async fn save_message(&self, text: &str, is_user: &bool) -> Result<ChatMessage>;
+    async fn save_message(
-    async fn get_latest_messages(&self) -> Result<Vec<ChatMessage>>;
+        &self,
+        text: &str,
+        is_user: &bool,
+        chat_id: &i64,
+    ) -> Result<ChatMessageData>;
+    async fn get_latest_messages(&self, chat_id: &i64, count: &i64)
+        -> Result<Vec<ChatMessageData>>;
+    async fn get_chat_ids(&self) -> Result<Box<[i64]>>;
 }
 
 pub struct SqliteChatRepository {
@@ -51,31 +58,46 @@ impl SqliteChatRepository {
 
 #[async_trait]
 impl ChatRepository for SqliteChatRepository {
-    async fn save_message(&self, text: &str, is_user: &bool) -> Result<ChatMessage> {
+    async fn save_message(
-        let result = sqlx::query_as::<_, ChatMessage>(
+        &self,
+        text: &str,
+        is_user: &bool,
+        chat_id: &i64,
+    ) -> Result<ChatMessageData> {
+        let result = sqlx::query_as::<_, ChatMessageData>(
             r#"
-            INSERT INTO messages (text, is_user)
+            INSERT INTO messages (text, is_user, chat_id)
-            VALUES (?, ?)
+            VALUES (?, ?, ?)
-            RETURNING id, text, is_user
+            RETURNING id, chat_id, text, is_user
             "#,
         )
         .bind(text)
         .bind(is_user)
+        .bind(chat_id)
         .fetch_one(&self.pool)
         .await
         .inspect_err(|e| println!("sql error: {}", e))?;
         Ok(result)
     }
 
-    async fn get_latest_messages(&self) -> Result<Vec<ChatMessage>> {
+    async fn get_latest_messages(
+        &self,
+        chat_id: &i64,
+        count: &i64,
+    ) -> Result<Vec<ChatMessageData>> {
+        // From all chat ids get the latest id.
         let rows = sqlx::query(
+            format!(
                 r#"
                 SELECT * FROM (
-            SELECT id, text, is_user
+                SELECT id, chat_id, text, is_user
                     FROM messages
+                    WHERE chat_id = {chat_id}
                     ORDER BY id DESC
-                LIMIT 10
+                    LIMIT {count}
-            ) AS subquery ORDER BY id ASC"#,
+                ) AS subquery ORDER BY id ASC;"#
+            )
+            .as_str(),
         )
         .fetch_all(&self.pool)
         .await
@@ -83,13 +105,29 @@ impl ChatRepository for SqliteChatRepository {
 
         let messages = rows
             .into_iter()
-            .map(|row| ChatMessage {
+            .map(|row| ChatMessageData {
                 id: row.get(0),
-                text: row.get(1),
+                chat_id: row.get(1),
-                is_user: row.get(2),
+                text: row.get(2),
+                is_user: row.get(3),
             })
             .collect();
 
         Ok(messages)
     }
+
+    async fn get_chat_ids(&self) -> Result<Box<[i64]>> {
+        let rows = sqlx::query("SELECT DISTINCT(chat_id) FROM messages ORDER BY chat_id DESC")
+            .fetch_all(&self.pool)
+            .await
+            .inspect_err(|e| println!("sql error: {}", e))?;
+        let ids: Vec<i64> = rows
+            .into_iter()
+            .map(|row| {
+                let i: i64 = row.get(0);
+                i
+            })
+            .collect();
+        Ok(ids.into_boxed_slice())
+    }
 }

crates/daemon/src/daemongrpc.rs

@@ -1,5 +1,8 @@
-use crate::chatpersistence::{ChatMessage, ChatRepository};
+use crate::chatpersistence::{ChatMessageData, ChatRepository};
-use shared::ai::ai_daemon_server::AiDaemon;
+use anyhow::Result;
+use genai::chat::{ChatMessage, ChatRequest};
+use genai::Client;
+use shared::ai::ai_service_server::AiService;
 use shared::ai::{
     ChatHistoryRequest, ChatHistoryResponse, ChatMessage as CMessage, ChatRequest as CRequest,
     ChatResponse as CResponse, DaemonStatusRequest, DaemonStatusResponse,
@@ -9,35 +12,60 @@ use tonic::{Code, Request, Response, Status};
 
 pub struct DaemonServer {
     repo: Arc<dyn ChatRepository + Send + Sync>,
+    client: Client,
 }
 
 impl DaemonServer {
-    pub fn new(repo: Arc<dyn ChatRepository + Send + Sync>) -> Self {
+    pub fn new(repo: Arc<dyn ChatRepository + Send + Sync>, client: Client) -> Self {
-        Self { repo }
+        Self {
+            repo: repo,
+            client: client,
+        }
     }
 }
 
 #[tonic::async_trait]
-impl AiDaemon for DaemonServer {
+impl AiService for DaemonServer {
     async fn chat(&self, request: Request<CRequest>) -> Result<Response<CResponse>, Status> {
         let r = request.into_inner();
+        let chat_id = id_or_new(self.repo.clone(), r.chat_id)
+            .await
+            .map_err(|e| Status::new(Code::Internal, e.to_string()))?;
+        let mut messages = gather_history(self.repo.clone(), &chat_id)
+            .await
+            .map_err(|e| Status::new(Code::Internal, e.to_string()))?;
+        messages.push(ChatMessage::user(r.text()));
+        let model = "llama3.2:latest";
+        let response = self
+            .client
+            .exec_chat(model, ChatRequest::new(messages), None)
+            .await
+            .map_err(|e| Status::new(Code::Internal, e.to_string()))?;
+
         let user_message = message_to_dto(
             &self
                 .repo
-                .save_message(r.text(), &true)
+                .save_message(r.text(), &true, &chat_id)
                 .await
                 .map_err(|e| Status::new(Code::Internal, e.to_string()))?,
         );
-        let response_text = format!("Pong: {}", r.text());
+        let response_text = match response.first_text() {
+            Some(t) => t,
+            None => "[No response from AI]",
+        };
+
+        println!("User: {}", r.text());
+        println!("AI: {}", response_text);
+
         let ai_message = message_to_dto(
             &self
                 .repo
-                .save_message(response_text.as_str(), &false)
+                .save_message(response_text, &false, &chat_id)
                 .await
                 .map_err(|e| Status::new(Code::Internal, e.to_string()))?,
         );
         let response = CResponse {
-            chat_id: 1,
+            chat_id: ai_message.chat_id,
             messages: vec![user_message, ai_message],
         };
         return Ok(Response::new(response));
@@ -45,16 +73,19 @@ impl AiDaemon for DaemonServer {
 
     async fn chat_history(
         &self,
-        _: Request<ChatHistoryRequest>,
+        request: Request<ChatHistoryRequest>,
     ) -> Result<Response<ChatHistoryResponse>, Status> {
+        let chat_id = get_latest_chat_id(self.repo.clone(), request.into_inner().chat_id)
+            .await
+            .map_err(|e| Status::new(Code::Internal, e.to_string()))?;
         let messages = self
             .repo
-            .get_latest_messages()
+            .get_latest_messages(&chat_id, &20)
             .await
             .map_err(|e| Status::new(Code::Internal, e.to_string()))?;
 
         let response = ChatHistoryResponse {
-            chat_id: 1,
+            chat_id: chat_id,
             history: messages.iter().map(|m| message_to_dto(m)).collect(),
         };
         Ok(Response::new(response))
@@ -73,10 +104,45 @@ impl AiDaemon for DaemonServer {
     }
 }
 
-pub fn message_to_dto(msg: &ChatMessage) -> CMessage {
+pub fn message_to_dto(msg: &ChatMessageData) -> CMessage {
     CMessage {
         id: msg.id,
+        chat_id: msg.chat_id,
         text: msg.text.clone(),
         is_user: msg.is_user,
     }
 }
+
+async fn gather_history(
+    repo: Arc<dyn ChatRepository + Send + Sync>,
+    chat_id: &i64,
+) -> Result<Vec<ChatMessage>> {
+    let messages = repo.get_latest_messages(chat_id, &10).await?;
+    Ok(messages
+        .iter()
+        .map(|m| match m.is_user {
+            true => ChatMessage::assistant(m.text.clone()),
+            false => ChatMessage::user(m.text.clone()),
+        })
+        .collect())
+}
+
+async fn get_latest_chat_id(
+    repo: Arc<dyn ChatRepository + Send + Sync>,
+    chat_id: Option<i64>,
+) -> Result<i64> {
+    Ok(match chat_id {
+        Some(i) => i,
+        None => repo.get_chat_ids().await?.get(0).copied().unwrap_or(0),
+    })
+}
+
+async fn id_or_new(
+    repo: Arc<dyn ChatRepository + Send + Sync>,
+    chat_id: Option<i64>,
+) -> Result<i64> {
+    Ok(match chat_id {
+        Some(i) => i,
+        None => repo.get_chat_ids().await?.get(0).copied().unwrap_or(0) + 1,
+    })
+}

crates/daemon/src/main.rs

@@ -3,41 +3,28 @@ mod daemongrpc;
 
 use std::sync::Arc;
 
-use genai::chat::{ChatMessage, ChatRequest};
 use genai::Client;
-use shared::ai::ai_daemon_server::AiDaemonServer;
+use shared::ai::ai_service_server::AiServiceServer;
 use tonic::transport::Server;
 
 use chatpersistence::SqliteChatRepository;
 use daemongrpc::DaemonServer;
 
-async fn prompt_ollama(
-    client: &Client,
-    model: &str,
-    prompt: &str,
-) -> Result<String, Box<dyn std::error::Error>> {
-    let chat_req = ChatRequest::new(vec![ChatMessage::user(prompt)]);
-    let chat_res = client.exec_chat(model, chat_req, None).await?;
-    let output = chat_res
-        .first_text()
-        .unwrap_or("No response content!")
-        .to_string();
-    Ok(output)
-}
-
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
     let chat_repo = SqliteChatRepository::new().await?;
 
+    let client = Client::default();
+
     let addr_s = "[::1]:50051";
     let addr = addr_s.parse().unwrap();
-    let daemon = DaemonServer::new(Arc::new(chat_repo));
+    let daemon = DaemonServer::new(Arc::new(chat_repo), client);
     let reflection_service = tonic_reflection::server::Builder::configure()
         .register_encoded_file_descriptor_set(shared::ai::FILE_DESCRIPTOR_SET)
         .build_v1()?;
     println!("Started daemon at {}", addr_s);
     Server::builder()
-        .add_service(AiDaemonServer::new(daemon))
+        .add_service(AiServiceServer::new(daemon))
         .add_service(reflection_service)
         .serve(addr)
         .await?;

crates/feshared/src/lib.rs

@@ -13,6 +13,28 @@ pub mod chatmessage {
         pub chat_id: Option<i64>,
         pub history: Vec<Message>,
     }
+
+    pub enum TauriCommand {
+        Chat,
+        SetChatId,
+        ChatHistory,
+        DaemonState,
+        ToggleDarkMode,
+        TogglePopup,
+    }
+
+    impl TauriCommand {
+        pub fn as_str(&self) -> &'static str {
+            match self {
+                TauriCommand::TogglePopup => "toggle_popup",
+                TauriCommand::Chat => "chat",
+                TauriCommand::SetChatId => "set_chat_id",
+                TauriCommand::ChatHistory => "chat_history",
+                TauriCommand::DaemonState => "daemon_state",
+                TauriCommand::ToggleDarkMode => "toggle_dark_mode",
+            }
+        }
+    }
 }
 
 pub mod daemon {

crates/shared/proto/api.proto

@@ -1,7 +1,7 @@
 syntax = "proto3";
 package ai_daemon;
 
-service AiDaemon {
+service AiService {
   rpc Chat(ChatRequest) returns (ChatResponse);
   rpc ChatHistory(ChatHistoryRequest) returns (ChatHistoryResponse);
   rpc DaemonStatus(DaemonStatusRequest) returns (DaemonStatusResponse);
@@ -9,6 +9,7 @@ service AiDaemon {
 
 message ChatMessage {
   int64 id = 1;
+  int64 chat_id = 2;
   string text = 10;
   bool is_user = 20;
 }

frontend/src-tauri/src/commands.rs

@@ -29,19 +29,19 @@ pub fn toggle_popup(app_handle: tauri::AppHandle) {
 }
 
 #[tauri::command]
-pub async fn chat(
+pub async fn chat(state: State<'_, AppState>, prompt: String) -> Result<Vec<Message>, String> {
-    state: State<'_, AppState>,
-    prompt: String,
-    chat_id: Option<i64>,
-) -> Result<Vec<Message>, String> {
     let mut client = state.grpc_client.lock().await;
+    let cid = state.current_chat_id.lock().await.clone();
     let request = tonic::Request::new(ChatRequest {
-        chat_id: chat_id,
+        chat_id: cid,
         text: Some(prompt),
     });
     match client.chat(request).await {
         Ok(response) => {
             let r = response.into_inner();
+            let mut cid = state.current_chat_id.lock().await;
+            *cid = Some(r.chat_id);
+            println!("CID={}", r.chat_id);
             r.messages.iter().for_each(|m| {
                 if m.is_user {
                     println!(">>> {}", m.text)
@@ -66,19 +66,30 @@ pub async fn chat(
 }
 
 #[tauri::command]
-pub async fn chat_history(
+pub async fn set_chat_id(
     state: State<'_, AppState>,
     chat_id: Option<i64>,
-) -> Result<MessageHistory, String> {
+) -> Result<Option<i64>, String> {
+    let mut cid = state.current_chat_id.lock().await;
+    *cid = chat_id;
+    Ok(chat_id)
+}
+
+#[tauri::command]
+pub async fn chat_history(state: State<'_, AppState>) -> Result<MessageHistory, String> {
     let mut client = state.grpc_client.lock().await;
+    let chat_id = state.current_chat_id.lock().await.clone();
     let result = client
-        .chat_history(ChatHistoryRequest { chat_id: None })
+        .chat_history(ChatHistoryRequest { chat_id: chat_id })
         .await;
     match result {
         Ok(response) => {
             let r = response.into_inner();
+            let mut cid = state.current_chat_id.lock().await;
+            *cid = Some(r.chat_id);
+            println!("CID={}", r.chat_id);
             Ok(MessageHistory {
-                chat_id: None,
+                chat_id: Some(r.chat_id),
                 history: r
                     .history
                     .iter()

frontend/src-tauri/src/main.rs

@@ -6,32 +6,35 @@ mod commands;
 use tauri_plugin_global_shortcut::{Code, GlobalShortcutExt, Modifiers, Shortcut, ShortcutState};
 use tokio::sync::Mutex;
 
-use commands::{chat, chat_history, daemon_state, toggle_dark_mode, toggle_popup};
+use commands::{chat, chat_history, daemon_state, set_chat_id, toggle_dark_mode, toggle_popup};
-use shared::ai::ai_daemon_client::AiDaemonClient;
+use shared::ai::ai_service_client::AiServiceClient;
 
 pub struct AppConfig {
     dark_mode: bool,
 }
 
 pub struct AppState {
-    grpc_client: Mutex<AiDaemonClient<tonic::transport::Channel>>,
+    grpc_client: Mutex<AiServiceClient<tonic::transport::Channel>>,
     config: Mutex<AppConfig>,
+    current_chat_id: Mutex<Option<i64>>,
 }
 
 #[tokio::main]
 async fn main() {
     let channel = tonic::transport::Channel::from_static("http://[::1]:50051").connect_lazy();
-    let client = AiDaemonClient::new(channel);
+    let client = AiServiceClient::new(channel);
 
     tauri::Builder::default()
         .manage(AppState {
             grpc_client: Mutex::new(client),
             config: Mutex::new(AppConfig { dark_mode: true }),
+            current_chat_id: Mutex::new(None),
         })
         .plugin(tauri_plugin_global_shortcut::Builder::new().build())
         .invoke_handler(tauri::generate_handler![
             toggle_popup,
             chat_history,
+            set_chat_id,
             chat,
             daemon_state,
             toggle_dark_mode,

frontend/src/app.rs

@@ -1,17 +1,19 @@
 use std::time::Duration;
 
-use feshared::daemon::DaemonState;
+use feshared::{chatmessage::TauriCommand, daemon::DaemonState};
-use leptos::logging::log;
 use leptos::{prelude::*, reactive::spawn_local};
 use leptos_router::{
     components::{Route, Router, Routes},
     path,
 };
-use serde::{Deserialize, Serialize};
+use wasm_bindgen::JsValue;
-use wasm_bindgen::{prelude::Closure, JsValue};
 
-use crate::bridge::{invoke, listen};
 use crate::popup::PopupView;
+use crate::{bridge::invoke_js, components::DarkModeToggle};
+use crate::{
+    bridge::invoke_typed,
+    components::{DaemonProvider, ThemeProvider},
+};
 
 pub const BTN_PRIMARY: &str = "bg-slate-300 hover:bg-slate-400 dark:bg-slate-800 hover:dark-bg-slate-700 px-4 py-2 rounded-md";
 
@@ -32,13 +34,7 @@ fn Dashboard() -> impl IntoView {
     let on_click = move |_ev: leptos::ev::MouseEvent| {
         spawn_local(async move {
             let empty_args = serde_wasm_bindgen::to_value(&serde_json::json!({})).unwrap();
-            invoke("toggle_popup", empty_args).await;
+            invoke_js(TauriCommand::TogglePopup, empty_args).await;
-        });
-    };
-
-    let toggle_dark_mode = |_ev: leptos::ev::MouseEvent| {
-        spawn_local(async {
-            let _ = invoke("toggle_dark_mode", JsValue::UNDEFINED).await;
         });
     };
     view! {
@@ -46,7 +42,6 @@ fn Dashboard() -> impl IntoView {
             <DaemonProvider>
                 <div class="min-h-screen w-screen bg-white dark:bg-zinc-900 text-gray-950 dark:text-white">
                         <button class=BTN_PRIMARY on:click=on_click>Open chat</button>
-                        <button class=BTN_PRIMARY on:click=toggle_dark_mode>asdf?</button>
                 </div>
             </DaemonProvider>
             <div class="fixed bottom-0 right-0 p-2">
@@ -56,22 +51,6 @@ fn Dashboard() -> impl IntoView {
     }
 }
 
-#[component]
-pub fn DarkModeToggle() -> impl IntoView {
-    let toggle_dark_mode = |_ev: leptos::ev::MouseEvent| {
-        spawn_local(async {
-            let _ = invoke("toggle_dark_mode", JsValue::UNDEFINED).await;
-        });
-    };
-    view! {
-        <div on:click=toggle_dark_mode class="text-gray-600 dark:text-gray-600">
-            <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="w-4 h-4">
-                <path stroke-linecap="round" stroke-linejoin="round" d="M21.752 15.002A9.72 9.72 0 0 1 18 15.75c-5.385 0-9.75-4.365-9.75-9.75 0-1.33.266-2.597.748-3.752A9.753 9.753 0 0 0 3 11.25C3 16.635 7.365 21 12.75 21a9.753 9.753 0 0 0 9.002-5.998Z" />
-            </svg>
-        </div>
-    }
-}
-
 #[component]
 pub fn DaemonStatusIndicator() -> impl IntoView {
     let (poll_count, set_pool_count) = signal(0);
@@ -81,8 +60,7 @@ pub fn DaemonStatusIndicator() -> impl IntoView {
     );
     let status = LocalResource::new(move || async move {
         poll_count.get();
-        let val = invoke("daemon_state", JsValue::NULL).await;
+        let s: DaemonState = invoke_typed(TauriCommand::DaemonState, JsValue::NULL).await;
-        let s: DaemonState = serde_wasm_bindgen::from_value(val).unwrap();
         s
     });
 
@@ -115,82 +93,3 @@ pub fn DaemonStatusIndicator() -> impl IntoView {
         </div>
     }
 }
-
-#[component]
-pub fn DaemonProvider(children: ChildrenFn) -> impl IntoView {
-    let (poll_count, set_pool_count) = signal(0);
-    set_interval(
-        move || set_pool_count.update(|v| *v += 1),
-        Duration::from_secs(1),
-    );
-    let status_res = LocalResource::new(move || async move {
-        poll_count.get();
-        let val = invoke("daemon_state", JsValue::NULL).await;
-        let s: DaemonState = serde_wasm_bindgen::from_value(val).unwrap();
-        s
-    });
-
-    let is_daemon_ok = Memo::new(move |_| status_res.get().map(|s| (s.is_ok, s.error)));
-
-    provide_context(status_res);
-
-    move || match is_daemon_ok.get() {
-        Some((true, _)) => children().into_any(),
-        Some((false, err)) => view! { <DaemonErrorStatus error=err/> }.into_any(),
-        None => view! { <p>Connecting...</p> }.into_any(),
-    }
-}
-
-#[component]
-fn DaemonErrorStatus(error: Option<String>) -> impl IntoView {
-    view! {
-        <ThemeProvider>
-            <div class="w-screen h-screen bg-white dark:bg-zinc-900">
-                <p>{ error.unwrap_or("Daemon error!".to_string()) } </p>
-            </div>
-        </ThemeProvider>
-    }
-}
-
-#[derive(Deserialize, Serialize, Clone)]
-struct DarkMode {
-    is_dark_mode: bool,
-}
-
-#[component]
-pub fn ThemeProvider(children: Children) -> impl IntoView {
-    let (is_dark, set_dark) = signal(false);
-
-    Effect::new(move |_| {
-        spawn_local(async move {
-            let handler = Closure::wrap(Box::new(move |evt: JsValue| {
-                log!("Received!!!");
-                #[derive(Deserialize)]
-                struct TauriEvent<T> {
-                    payload: T,
-                }
-                if let Ok(wrapper) = serde_wasm_bindgen::from_value::<TauriEvent<DarkMode>>(evt) {
-                    set_dark.set(wrapper.payload.is_dark_mode);
-                }
-            }) as Box<dyn FnMut(JsValue)>);
-            let unlisten = listen("dark-mode-changed", &handler).await;
-            // TODO use on_cleanup to call the unlisten JS function.
-            handler.forget()
-        });
-    });
-
-    Effect::new(move |_| {
-        let el = document()
-            .document_element()
-            .expect("HTML element not found!");
-        if is_dark.get() {
-            let _ = el.set_attribute("class", "dark");
-        } else {
-            let _ = el.set_attribute("class", "");
-        }
-    });
-
-    view! {
-        {children()}
-    }
-}

frontend/src/bridge.rs

@@ -1,9 +1,41 @@
+use feshared::chatmessage::TauriCommand;
+use serde::{de::DeserializeOwned, Deserialize};
 use wasm_bindgen::prelude::*;
 #[wasm_bindgen]
 extern "C" {
     #[wasm_bindgen(js_namespace = ["window", "__TAURI__", "core"])]
-    pub async fn invoke(cmd: &str, args: JsValue) -> JsValue;
+    async fn invoke(cmd: &str, args: JsValue) -> JsValue;
 
     #[wasm_bindgen(js_namespace = ["window", "__TAURI__", "event"])]
     pub async fn listen(event: &str, handler: &Closure<dyn FnMut(JsValue)>) -> JsValue;
 }
+
+pub async fn invoke_js(cmd: TauriCommand, args: JsValue) -> JsValue {
+    invoke(cmd.as_str(), args).await
+}
+
+pub async fn invoke_typed<T>(cmd: TauriCommand, args: JsValue) -> T
+where
+    T: DeserializeOwned,
+{
+    let response = invoke(cmd.as_str(), args).await;
+    let result: T = serde_wasm_bindgen::from_value(response).unwrap();
+    result
+}
+
+pub fn event_handler<T, F>(callback: F) -> Closure<dyn FnMut(JsValue)>
+where
+    T: DeserializeOwned + 'static,
+    F: Fn(T) + 'static,
+{
+    Closure::new(move |val: JsValue| {
+        #[derive(Deserialize)]
+        struct TauriEvent<T> {
+            payload: T,
+        }
+
+        if let Ok(wrapper) = serde_wasm_bindgen::from_value::<TauriEvent<T>>(val) {
+            callback(wrapper.payload)
+        }
+    })
+}

frontend/src/components.rs

@@ -0,0 +1,125 @@
+use std::time::Duration;
+
+use feshared::{chatmessage::TauriCommand, daemon::DaemonState};
+use leptos::{component, prelude::*, reactive::spawn_local, view, IntoView};
+use serde::{Deserialize, Serialize};
+use wasm_bindgen::JsValue;
+
+use crate::bridge::{event_handler, invoke_js, invoke_typed, listen};
+
+#[component]
+pub fn DaemonProvider(children: ChildrenFn) -> impl IntoView {
+    let (poll_count, set_pool_count) = signal(0);
+    set_interval(
+        move || set_pool_count.update(|v| *v += 1),
+        Duration::from_secs(1),
+    );
+    let status_res = LocalResource::new(move || async move {
+        poll_count.get();
+        let s: DaemonState = invoke_typed(TauriCommand::DaemonState, JsValue::NULL).await;
+        s
+    });
+
+    let is_daemon_ok = Memo::new(move |_| status_res.get().map(|s| (s.is_ok, s.error)));
+
+    provide_context(status_res);
+
+    move || match is_daemon_ok.get() {
+        Some((true, _)) => children().into_any(),
+        Some((false, err)) => view! { <DaemonErrorStatus error=err/> }.into_any(),
+        None => view! { <p>Connecting...</p> }.into_any(),
+    }
+}
+
+#[component]
+pub fn DaemonErrorStatus(error: Option<String>) -> impl IntoView {
+    view! {
+        <div class="w-screen h-screen
+            text-gray-950 dark:text-white
+            bg-white dark:bg-zinc-900
+            flex justify-center items-center">
+            <div class="text-zinc-100 dark:text-zinc-800 fixed w-full">
+                <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
+                <path stroke-linecap="round" stroke-linejoin="round" d="M6 18 18 6M6 6l12 12" />
+                </svg>
+            </div>
+            <span class="fixed">{ error.unwrap_or("Daemon error!".to_string()) } </span>
+        </div>
+    }
+}
+
+#[derive(Deserialize, Serialize, Clone)]
+pub struct DarkMode {
+    is_dark_mode: bool,
+}
+
+#[component]
+pub fn ThemeProvider(children: Children) -> impl IntoView {
+    let (is_dark, set_dark) = signal(true);
+
+    Effect::new(move |_| {
+        spawn_local(async move {
+            let hndlr = event_handler(move |mode: DarkMode| {
+                set_dark.set(mode.is_dark_mode);
+            });
+            // TODO use on_cleanup to call the unlisten JS function.
+            let unlisten = listen("dark-mode-changed", &hndlr).await;
+            hndlr.forget()
+        });
+    });
+
+    Effect::new(move |_| {
+        let el = document()
+            .document_element()
+            .expect("HTML element not found!");
+        if is_dark.get() {
+            let _ = el.set_attribute("class", "dark");
+        } else {
+            let _ = el.set_attribute("class", "");
+        }
+    });
+
+    view! {
+        {children()}
+    }
+}
+
+#[component]
+pub fn DarkModeToggle() -> impl IntoView {
+    let toggle_dark_mode = |_ev: leptos::ev::MouseEvent| {
+        spawn_local(async {
+            let _ = invoke_js(TauriCommand::ToggleDarkMode, JsValue::UNDEFINED).await;
+        });
+    };
+    view! {
+        <div on:click=toggle_dark_mode class="text-gray-600 dark:text-gray-600">
+            <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="w-4 h-4">
+                <path stroke-linecap="round" stroke-linejoin="round" d="M21.752 15.002A9.72 9.72 0 0 1 18 15.75c-5.385 0-9.75-4.365-9.75-9.75 0-1.33.266-2.597.748-3.752A9.753 9.753 0 0 0 3 11.25C3 16.635 7.365 21 12.75 21a9.753 9.753 0 0 0 9.002-5.998Z" />
+            </svg>
+        </div>
+    }
+}
+
+#[component]
+pub fn ConfirmDialog(
+    is_open: ReadSignal<bool>,
+    on_confirm: Callback<()>,
+    on_cancel: Callback<()>,
+    title: String,
+    message: String,
+) -> impl IntoView {
+    view! {
+        <Show when=move || is_open.get()>
+            <div class="fixed inset-0 z-50 flex items-center justify-center backdrop-blur text-zinc-950 dark:text-white">
+                <div class="flex flex-col items-center justify-center p-4 rounded-lg bg-white/30 dark:bg-black/30">
+                    <h3 class="text-lg font-bold mb-2">{ title.clone() }</h3>
+                    <p>{ message.clone() }</p>
+                    <div>
+                        <button class="primary-button m-3" on:click=move |_| on_confirm.run(())>Confirm</button>
+                        <button class="primary-button m-3" on:click=move |_| on_cancel.run(())>Cancel</button>
+                    </div>
+                </div>
+            </div>
+        </Show>
+    }
+}

frontend/src/main.rs

@@ -1,5 +1,6 @@
 mod app;
 mod bridge;
+mod components;
 mod popup;
 
 use app::*;

frontend/src/popup.rs

@@ -1,9 +1,9 @@
 use crate::{
-    app::{DaemonProvider, DarkModeToggle, ThemeProvider},
+    bridge::{invoke_js, invoke_typed},
-    bridge::invoke,
+    components::{ConfirmDialog, DaemonProvider, DarkModeToggle, ThemeProvider},
 };
 use feshared::{
-    chatmessage::{Message, MessageHistory},
+    chatmessage::{Message, MessageHistory, TauriCommand},
     daemon::DaemonState,
 };
 use leptos::{ev::keydown, html::Input, prelude::*};
@@ -30,12 +30,8 @@ pub fn Popup() -> impl IntoView {
         use_context::<LocalResource<DaemonState>>().expect("No daemon connection context!");
 
     let init_history = Action::new_local(|(): &()| async move {
-        let response = invoke(
+        let history: MessageHistory =
-            "chat_history",
+            invoke_typed(TauriCommand::ChatHistory, JsValue::UNDEFINED).await;
-            serde_wasm_bindgen::to_value(&serde_json::json!({"chat_id": 1})).unwrap(),
-        )
-        .await;
-        let history: MessageHistory = serde_wasm_bindgen::from_value(response).unwrap();
         history
     });
     Effect::new(move |prev_status: Option<bool>| {
@@ -51,16 +47,27 @@ pub fn Popup() -> impl IntoView {
         }
     });
 
+    let set_chat_id_action = Action::new_local(|chat_id: &Option<i64>| {
+        let cid = chat_id.clone();
+        async move {
+            let result: Option<i64> = invoke_typed(
+                TauriCommand::SetChatId,
+                serde_wasm_bindgen::to_value(&serde_json::json!({"chat_id": cid})).unwrap(),
+            )
+            .await;
+            result
+        }
+    });
+
     // Action that calls the chat action on the daemon
     let prompt_action = Action::new_local(|prompt: &String| {
         let prompt = prompt.clone();
         async move {
-            let response = invoke(
+            let result: Vec<Message> = invoke_typed(
-                "chat",
+                TauriCommand::Chat,
                 serde_wasm_bindgen::to_value(&serde_json::json!({"prompt": prompt})).unwrap(),
             )
             .await;
-            let result: Vec<Message> = serde_wasm_bindgen::from_value(response).unwrap();
             result
         }
     });
@@ -90,14 +97,29 @@ pub fn Popup() -> impl IntoView {
     let _ = window_event_listener(keydown, move |ev| {
         if ev.key() == "Escape" {
             spawn_local(async move {
-                let _ = invoke("toggle_popup", JsValue::UNDEFINED).await;
+                let _ = invoke_js(TauriCommand::TogglePopup, JsValue::UNDEFINED).await;
             });
         }
     });
 
+    let (show_new_chat_confirm, set_new_chat_confirm) = signal(false);
+
+    let new_chat = move |_: ()| {
+        set_messages.set(Vec::<Message>::new());
+        // TODO add callback to the action, and clear chat and close dialog in the callback!
+        set_chat_id_action.dispatch(None);
+        set_new_chat_confirm.set(false);
+    };
+
     view! {
+        <ConfirmDialog
+            is_open=show_new_chat_confirm
+            on_confirm=Callback::new(new_chat)
+            on_cancel=Callback::new(move |_| set_new_chat_confirm.set(false))
+            title="Open a new chat?".to_string()
+            message="Current chat is stored".to_string() />
         <div class="flex flex-col rounded-lg bg-white dark:bg-zinc-900 text-zinc-950 dark:text-white h-screen w-full">
-            <header class="p-3">
+            <header class="relative p-3">
                 <input
                     class="w-full p-3 rounded-lg bg-zinc-200 dark:bg-zinc-950"
                     type="text"
@@ -113,8 +135,13 @@ pub fn Popup() -> impl IntoView {
                     }
                     prop:value=prompt_text
                     />
+                <button class="absolute py-1 px-2 right-5 mt-2
+                    rounded-full
+                    dark:bg-slate-800
+                    dark:hover:bg-slate-600"
+                    on:click=move |_| set_new_chat_confirm.set(true)>+</button>
             </header>
-            <main class="flex-grow overflow-y-auto p-2">
+            <main class="flex-grow overflow-y-auto p-4">
                 <div class="flex flex-col">
                     <For each=move || messages.get()
                     key=|msg| msg.id

frontend/styles-input.css

@@ -4,7 +4,7 @@
 
 @layer components {
     .msg {
-        @apply rounded-lg px-3 py-2 dark:bg-gray-800 max-w-[75%];
+        @apply rounded-lg mb-5 px-3 py-2 dark:bg-gray-800 max-w-[75%];
     }
 
     .msg-model {
@@ -14,6 +14,10 @@
     .msg-user {
         @apply self-end bg-slate-200 dark:bg-zinc-800;
     }
+
+    .primary-button {
+        @apply bg-blue-300 dark:bg-gray-800 rounded-lg p-3;
+    }
 }
 
 body {

frontend/styles.css

@@ -579,18 +579,21 @@
   .sticky {
     position: sticky;
   }
+  .inset-0 {
+    inset: calc(var(--spacing) * 0);
+  }
   .right-0 {
     right: calc(var(--spacing) * 0);
   }
   .right-2 {
     right: calc(var(--spacing) * 2);
   }
+  .right-5 {
+    right: calc(var(--spacing) * 5);
+  }
   .bottom-0 {
     bottom: calc(var(--spacing) * 0);
   }
-  .bottom-4 {
-    bottom: calc(var(--spacing) * 4);
-  }
   .isolate {
     isolation: isolate;
   }
@@ -672,6 +675,9 @@
   .m-0 {
     margin: calc(var(--spacing) * 0);
   }
+  .m-3 {
+    margin: calc(var(--spacing) * 3);
+  }
   .-mx-1 {
     margin-inline: calc(var(--spacing) * -1);
   }
@@ -687,9 +693,15 @@
   .mt-1 {
     margin-top: calc(var(--spacing) * 1);
   }
+  .mt-2 {
+    margin-top: calc(var(--spacing) * 2);
+  }
   .mt-8 {
     margin-top: calc(var(--spacing) * 8);
   }
+  .mb-2 {
+    margin-bottom: calc(var(--spacing) * 2);
+  }
   .mb-8 {
     margin-bottom: calc(var(--spacing) * 8);
   }
@@ -771,10 +783,6 @@
   .field-sizing-fixed {
     field-sizing: fixed;
   }
-  .size-3 {
-    width: calc(var(--spacing) * 3);
-    height: calc(var(--spacing) * 3);
-  }
   .size-3\.5 {
     width: calc(var(--spacing) * 3.5);
     height: calc(var(--spacing) * 3.5);
@@ -1281,9 +1289,6 @@
   .justify-items-stretch {
     justify-items: stretch;
   }
-  .gap-1 {
-    gap: calc(var(--spacing) * 1);
-  }
   .gap-1\.5 {
     gap: calc(var(--spacing) * 1.5);
   }
@@ -1578,6 +1583,12 @@
   .bg-white {
     background-color: var(--color-white);
   }
+  .bg-white\/30 {
+    background-color: color-mix(in srgb, #fff 30%, transparent);
+    @supports (color: color-mix(in lab, red, red)) {
+      background-color: color-mix(in oklab, var(--color-white) 30%, transparent);
+    }
+  }
   .bg-yellow-600 {
     background-color: var(--color-yellow-600);
   }
@@ -1924,6 +1935,9 @@
   .p-3 {
     padding: calc(var(--spacing) * 3);
   }
+  .p-4 {
+    padding: calc(var(--spacing) * 4);
+  }
   .p-6 {
     padding: calc(var(--spacing) * 6);
   }
@@ -1963,9 +1977,6 @@
   .py-\[0\.2rem\] {
     padding-block: 0.2rem;
   }
-  .pt-2 {
-    padding-top: calc(var(--spacing) * 2);
-  }
   .pr-8 {
     padding-right: calc(var(--spacing) * 8);
   }
@@ -2029,6 +2040,10 @@
     font-size: var(--text-base);
     line-height: var(--tw-leading, var(--text-base--line-height));
   }
+  .text-lg {
+    font-size: var(--text-lg);
+    line-height: var(--tw-leading, var(--text-lg--line-height));
+  }
   .text-sm {
     font-size: var(--text-sm);
     line-height: var(--tw-leading, var(--text-sm--line-height));
@@ -2151,6 +2166,9 @@
   .text-white {
     color: var(--color-white);
   }
+  .text-zinc-100 {
+    color: var(--color-zinc-100);
+  }
   .text-zinc-950 {
     color: var(--color-zinc-950);
   }
@@ -2806,6 +2824,14 @@
       line-height: var(--tw-leading, var(--text-sm--line-height));
     }
   }
+  .dark\:bg-black\/30 {
+    &:where(.dark, .dark *) {
+      background-color: color-mix(in srgb, #000 30%, transparent);
+      @supports (color: color-mix(in lab, red, red)) {
+        background-color: color-mix(in oklab, var(--color-black) 30%, transparent);
+      }
+    }
+  }
   .dark\:bg-slate-800 {
     &:where(.dark, .dark *) {
       background-color: var(--color-slate-800);
@@ -2831,6 +2857,20 @@
       color: var(--color-white);
     }
   }
+  .dark\:text-zinc-800 {
+    &:where(.dark, .dark *) {
+      color: var(--color-zinc-800);
+    }
+  }
+  .dark\:hover\:bg-slate-600 {
+    &:where(.dark, .dark *) {
+      &:hover {
+        @media (hover: hover) {
+          background-color: var(--color-slate-600);
+        }
+      }
+    }
+  }
   .\[\&_svg\]\:pointer-events-none {
     & svg {
       pointer-events: none;
@@ -2887,6 +2927,7 @@
 }
 @layer components {
   .msg {
+    margin-bottom: calc(var(--spacing) * 5);
     max-width: 75%;
     border-radius: var(--radius-lg);
     padding-inline: calc(var(--spacing) * 3);
@@ -2909,6 +2950,14 @@
       background-color: var(--color-zinc-800);
     }
   }
+  .primary-button {
+    border-radius: var(--radius-lg);
+    background-color: var(--color-blue-300);
+    padding: calc(var(--spacing) * 3);
+    &:where(.dark, .dark *) {
+      background-color: var(--color-gray-800);
+    }
+  }
 }
 body {
   background-color: transparent !important;