feat: allow starting a new chat

communication

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

@@ -1,21 +1,29 @@
 use anyhow::Result;
 use directories::ProjectDirs;
 use sqlx::sqlite::SqliteConnectOptions;
-use sqlx::Row;
-use sqlx::SqlitePool;
+use sqlx::{Row, SqlitePool};
 use tokio::fs;
 use tonic::async_trait;
 
-pub struct ChatMessage {
+#[derive(Debug, sqlx::FromRow)]
+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<()>;
-    async fn get_all_messages(&self) -> Result<Vec<ChatMessage>>;
+    async fn save_message(
+        &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 {
@@ -39,15 +47,10 @@ impl SqliteChatRepository {
         )
         .await?;
 
-        sqlx::query(
-            "CREATE TABLE IF NOT EXISTS message (
-                id INTEGER PRIMARY KEY AUTOINCREMENT,
-                text TEXT NOT NULL,
-                is_user BOOL NOT NULL
-            )",
-        )
-        .execute(&pool)
-        .await?;
+        sqlx::migrate!("./migrations")
+            .run(&pool)
+            .await
+            .inspect_err(|e| eprintln!("Migration failed! {}", e))?;
 
         Ok(Self { pool })
     }
@@ -55,29 +58,76 @@ impl SqliteChatRepository {
 
 #[async_trait]
 impl ChatRepository for SqliteChatRepository {
-    async fn save_message(&self, text: &str, is_user: &bool) -> Result<()> {
-        sqlx::query("INSERT INTO messages (text, is_user) values (?, ?)")
+    async fn save_message(
+        &self,
+        text: &str,
+        is_user: &bool,
+        chat_id: &i64,
+    ) -> Result<ChatMessageData> {
+        let result = sqlx::query_as::<_, ChatMessageData>(
+            r#"
+            INSERT INTO messages (text, is_user, chat_id)
+            VALUES (?, ?, ?)
+            RETURNING id, chat_id, text, is_user
+            "#,
+        )
         .bind(text)
         .bind(is_user)
-            .execute(&self.pool)
-            .await?;
-        Ok(())
+        .bind(chat_id)
+        .fetch_one(&self.pool)
+        .await
+        .inspect_err(|e| println!("sql error: {}", e))?;
+        Ok(result)
     }
 
-    async fn get_all_messages(&self) -> Result<Vec<ChatMessage>> {
-        let rows = sqlx::query("SELECT id, text, is_user FROM messages ORDER BY id DESC LIMIT 10")
+    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, chat_id, text, is_user
+                    FROM messages
+                    WHERE chat_id = {chat_id}
+                    ORDER BY id DESC
+                    LIMIT {count}
+                ) AS subquery ORDER BY id ASC;"#
+            )
+            .as_str(),
+        )
         .fetch_all(&self.pool)
-            .await?;
+        .await
+        .inspect_err(|e| println!("sql error: {}", e))?;
 
         let messages = rows
             .into_iter()
-            .map(|row| ChatMessage {
+            .map(|row| ChatMessageData {
                 id: row.get(0),
-                text: row.get(1),
-                is_user: row.get(2),
+                chat_id: row.get(1),
+                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

@@ -0,0 +1,148 @@
+use crate::chatpersistence::{ChatMessageData, ChatRepository};
+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,
+};
+use std::sync::Arc;
+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>, client: Client) -> Self {
+        Self {
+            repo: repo,
+            client: client,
+        }
+    }
+}
+
+#[tonic::async_trait]
+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, &chat_id)
+                .await
+                .map_err(|e| Status::new(Code::Internal, e.to_string()))?,
+        );
+        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, &false, &chat_id)
+                .await
+                .map_err(|e| Status::new(Code::Internal, e.to_string()))?,
+        );
+        let response = CResponse {
+            chat_id: ai_message.chat_id,
+            messages: vec![user_message, ai_message],
+        };
+        return Ok(Response::new(response));
+    }
+
+    async fn chat_history(
+        &self,
+        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(&chat_id, &20)
+            .await
+            .map_err(|e| Status::new(Code::Internal, e.to_string()))?;
+
+        let response = ChatHistoryResponse {
+            chat_id: chat_id,
+            history: messages.iter().map(|m| message_to_dto(m)).collect(),
+        };
+        Ok(Response::new(response))
+    }
+
+    async fn daemon_status(
+        &self,
+        _: Request<DaemonStatusRequest>,
+    ) -> Result<Response<DaemonStatusResponse>, Status> {
+        let status = DaemonStatusResponse {
+            is_ok: true,
+            message: None,
+            error: None,
+        };
+        Ok(Response::new(status))
+    }
+}
+
+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

@@ -1,113 +1,30 @@
 mod chatpersistence;
+mod daemongrpc;
 
-use std::cell::Cell;
-use std::sync::atomic::AtomicI64;
+use std::sync::Arc;
 
-use genai::chat::{ChatMessage, ChatRequest};
 use genai::Client;
-use shared::ai::ai_daemon_server::{AiDaemon, AiDaemonServer};
-use shared::ai::{
-    ChatHistoryRequest, ChatHistoryResponse, ChatMessage as CMessage, ChatRequest as CRequest,
-    ChatResponse as CResponse, PromptRequest, PromptResponse,
-};
-use tonic::{transport::Server, Request, Response, Status};
+use shared::ai::ai_service_server::AiServiceServer;
+use tonic::transport::Server;
 
 use chatpersistence::SqliteChatRepository;
-
-pub struct DaemonServer {
-    message_counter: AtomicI64,
-}
-
-impl Default for DaemonServer {
-    fn default() -> Self {
-        Self {
-            message_counter: AtomicI64::new(0),
-        }
-    }
-}
-
-#[tonic::async_trait]
-impl AiDaemon for DaemonServer {
-    async fn prompt(
-        &self,
-        request: Request<PromptRequest>,
-    ) -> Result<Response<PromptResponse>, Status> {
-        let remote_a = request.remote_addr();
-        let prompt_value = request.into_inner().prompt;
-        println!("Request from {:?}: {:?}", remote_a, prompt_value);
-        let client = Client::default();
-        let response = prompt_ollama(&client, "llama3.2", prompt_value.as_str())
-            .await
-            .unwrap_or_else(|err| format!("Prompt error: {}", err));
-        println!("Respone: {}", response);
-        let reply = PromptResponse { response: response };
-        Ok(Response::new(reply))
-    }
-
-    async fn chat(&self, request: Request<CRequest>) -> Result<Response<CResponse>, Status> {
-        let r = request.into_inner();
-        println!("<<<: {}", r.text());
-        let response = CResponse {
-            chat_id: 1,
-            messages: vec![
-                CMessage {
-                    id: self
-                        .message_counter
-                        .fetch_add(1, std::sync::atomic::Ordering::Relaxed),
-                    text: r.text().to_string(),
-                    is_user: true,
-                },
-                CMessage {
-                    id: self
-                        .message_counter
-                        .fetch_add(1, std::sync::atomic::Ordering::Relaxed),
-                    text: format!("Pong: {}", r.text()),
-                    is_user: false,
-                },
-            ],
-        };
-        return Ok(Response::new(response));
-    }
-
-    async fn chat_history(
-        &self,
-        request: Request<ChatHistoryRequest>,
-    ) -> Result<Response<ChatHistoryResponse>, Status> {
-        let response = ChatHistoryResponse {
-            chat_id: 1,
-            history: vec![],
-        };
-        Ok(Response::new(response))
-    }
-}
-
-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)
-}
+use daemongrpc::DaemonServer;
 
 #[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::default();
+    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/Cargo.toml

@@ -4,4 +4,4 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-serde = "1.0.228"
+serde = { version = "1.0.228", features = ["derive"] }

crates/feshared/src/lib.rs

@@ -13,4 +13,37 @@ 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 {
+    use serde::{Deserialize, Serialize};
+
+    #[derive(Clone, Debug, Deserialize, Serialize)]
+    pub struct DaemonState {
+        pub is_ok: bool,
+        pub message: Option<String>,
+        pub error: Option<String>,
+    }
 }

crates/shared/proto/api.proto

@@ -1,14 +1,15 @@
 syntax = "proto3";
 package ai_daemon;
 
-service AiDaemon {
-  rpc Prompt(PromptRequest) returns (PromptResponse);
+service AiService {
   rpc Chat(ChatRequest) returns (ChatResponse);
   rpc ChatHistory(ChatHistoryRequest) returns (ChatHistoryResponse);
+  rpc DaemonStatus(DaemonStatusRequest) returns (DaemonStatusResponse);
 }
 
 message ChatMessage {
   int64 id = 1;
+  int64 chat_id = 2;
   string text = 10;
   bool is_user = 20;
 }
@@ -30,13 +31,13 @@ message ChatHistoryRequest {
 
 message ChatHistoryResponse {
   int64 chat_id = 1;
-  repeated ChatResponse history = 10;
+  repeated ChatMessage history = 10;
 }
 
-message PromptRequest {
-  string prompt = 1;
-}
+message DaemonStatusRequest {}
 
-message PromptResponse {
-  string response = 1;
+message DaemonStatusResponse {
+  bool is_ok = 1;
+  optional string message = 10;
+  optional string error = 20;
 }

frontend/src-tauri/capabilities/default.json

@@ -3,8 +3,5 @@
   "identifier": "default",
   "description": "Capability for the main window",
   "windows": ["main"],
-  "permissions": [
-    "core:default",
-    "opener:default"
-  ]
+  "permissions": ["core:default", "opener:default"]
 }

frontend/src-tauri/capabilities/desktop.json

@@ -1,14 +1,6 @@
 {
   "identifier": "desktop-capability",
-  "platforms": [
-    "macOS",
-    "windows",
-    "linux"
-  ],
-  "windows": [
-    "main"
-  ],
-  "permissions": [
-    "global-shortcut:default"
-  ]
+  "platforms": ["macOS", "windows", "linux"],
+  "windows": ["main", "dashboard", "popup"],
+  "permissions": ["global-shortcut:default", "core:event:allow-listen"]
 }

frontend/src-tauri/src/commands.rs

@@ -0,0 +1,150 @@
+use serde::Serialize;
+use tauri::{Emitter, Manager, State};
+
+use feshared::{
+    chatmessage::{Message, MessageHistory},
+    daemon::DaemonState,
+};
+use shared::ai::{ChatHistoryRequest, ChatRequest, DaemonStatusRequest};
+
+use crate::AppState;
+
+#[tauri::command]
+pub fn toggle_popup(app_handle: tauri::AppHandle) {
+    match app_handle.get_webview_window("popup") {
+        Some(window) => {
+            let is_visible = window.is_visible().unwrap_or(false);
+            if is_visible {
+                window.hide().unwrap();
+            } else {
+                window.show().unwrap();
+                window.set_focus().unwrap();
+                let _ = window.emit("window-focused", ());
+            }
+        }
+        None => {
+            println!("ERROR: Window with label 'popup' not found!");
+        }
+    }
+}
+
+#[tauri::command]
+pub async fn chat(state: State<'_, AppState>, prompt: String) -> 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: 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)
+                } else {
+                    println!("<<< {}", m.text)
+                }
+            });
+            Ok(r.messages
+                .iter()
+                .map(|msg| Message {
+                    id: msg.id,
+                    text: msg.text.clone(),
+                    is_user: msg.is_user,
+                })
+                .collect())
+        }
+        Err(e) => {
+            println!("gRPC error: {}", e);
+            Err(format!("gRPC error: {}", e))
+        }
+    }
+}
+
+#[tauri::command]
+pub async fn set_chat_id(
+    state: State<'_, AppState>,
+    chat_id: Option<i64>,
+) -> 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: 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: Some(r.chat_id),
+                history: r
+                    .history
+                    .iter()
+                    .map(|m| Message {
+                        id: m.id,
+                        is_user: m.is_user,
+                        text: m.text.clone(),
+                    })
+                    .collect(),
+            })
+        }
+        Err(e) => Err(format!("gRPC error: {e}")),
+    }
+}
+
+#[tauri::command]
+pub async fn daemon_state(state: State<'_, AppState>) -> Result<DaemonState, String> {
+    let mut client = state.grpc_client.lock().await;
+    let result = client.daemon_status(DaemonStatusRequest {}).await;
+    match result {
+        Ok(status) => {
+            let status_inner = status.into_inner();
+            Ok(DaemonState {
+                is_ok: status_inner.is_ok,
+                message: Some(status_inner.message.unwrap_or(String::from("Daemon OK"))),
+                error: status_inner.error,
+            })
+        }
+        Err(e) => Ok(DaemonState {
+            is_ok: false,
+            message: None,
+            error: Some(e.message().to_string()),
+        }),
+    }
+}
+
+#[derive(Clone, Serialize)]
+struct DarkMode {
+    is_dark_mode: bool,
+}
+
+#[tauri::command]
+pub async fn toggle_dark_mode(
+    state: State<'_, AppState>,
+    handle: tauri::AppHandle,
+) -> Result<bool, String> {
+    let mut config = state.config.lock().await;
+    config.dark_mode = !config.dark_mode;
+    handle
+        .emit(
+            "dark-mode-changed",
+            DarkMode {
+                is_dark_mode: config.dark_mode,
+            },
+        )
+        .unwrap();
+    Ok(config.dark_mode)
+}

frontend/src-tauri/src/main.rs

@@ -1,127 +1,43 @@
 // Prevents additional console window on Windows in release, DO NOT REMOVE!!
 #![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
 
-use feshared::chatmessage::{Message, MessageHistory};
-use shared::ai::{ai_daemon_client::AiDaemonClient, ChatRequest, PromptRequest};
-use tauri::{Emitter, Manager, State};
+mod commands;
+
 use tauri_plugin_global_shortcut::{Code, GlobalShortcutExt, Modifiers, Shortcut, ShortcutState};
 use tokio::sync::Mutex;
 
-struct AppState {
-    grpc_client: Mutex<AiDaemonClient<tonic::transport::Channel>>,
-    current_chat: Mutex<Option<i64>>,
+use commands::{chat, chat_history, daemon_state, set_chat_id, toggle_dark_mode, toggle_popup};
+use shared::ai::ai_service_client::AiServiceClient;
+
+pub struct AppConfig {
+    dark_mode: bool,
 }
 
-#[tauri::command]
-fn toggle_popup(app_handle: tauri::AppHandle) {
-    match app_handle.get_webview_window("popup") {
-        Some(window) => {
-            let is_visible = window.is_visible().unwrap_or(false);
-            if is_visible {
-                window.hide().unwrap();
-            } else {
-                window.show().unwrap();
-                window.set_focus().unwrap();
-                let _ = window.emit("window-focused", ());
-            }
-        }
-        None => {
-            println!("ERROR: Window with label 'popup' not found!");
-        }
-    }
-}
-
-#[tauri::command]
-async fn prompt_llm(state: State<'_, AppState>, prompt: String) -> Result<String, String> {
-    println!(">>>> {}", prompt);
-    let mut client = state.grpc_client.lock().await;
-    let request = tonic::Request::new(PromptRequest { prompt });
-    match client.prompt(request).await {
-        Ok(response) => Ok(response.into_inner().response),
-        Err(e) => Err(format!("gRPC error: {}", e)),
-    }
-}
-
-#[tauri::command]
-async fn chat(
-    state: State<'_, AppState>,
-    prompt: String,
-    chat_id: Option<i64>,
-) -> Result<Vec<Message>, String> {
-    let mut client = state.grpc_client.lock().await;
-    let request = tonic::Request::new(ChatRequest {
-        chat_id: chat_id,
-        text: Some(prompt),
-    });
-    match client.chat(request).await {
-        Ok(response) => {
-            let r = response.into_inner();
-            r.messages.iter().for_each(|m| {
-                if m.is_user {
-                    println!(">>> {}", m.text)
-                } else {
-                    println!("<<< {}", m.text)
-                }
-            });
-            Ok(r.messages
-                .iter()
-                .map(|msg| Message {
-                    id: msg.id,
-                    text: msg.text.clone(),
-                    is_user: msg.is_user,
-                })
-                .collect())
-        }
-        Err(e) => Err(format!("gRPC error: {}", e)),
-    }
-}
-
-#[tauri::command]
-async fn chat_history(
-    state: State<'_, AppState>,
-    chat_id: Option<i64>,
-) -> Result<MessageHistory, String> {
-    let history = MessageHistory {
-        chat_id: match chat_id {
-            Some(_) => chat_id,
-            None => Some(-1),
-        },
-        history: vec![
-            Message {
-                id: 1,
-                text: String::from("asd"),
-                is_user: false,
-            },
-            Message {
-                id: 2,
-                text: String::from("yeah!!!!"),
-                is_user: true,
-            },
-        ],
-    };
-    Ok(history)
+pub struct AppState {
+    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()
-        .await
-        .expect("Could not connect to daemon!");
-
-    let client = AiDaemonClient::new(channel);
+    let channel = tonic::transport::Channel::from_static("http://[::1]:50051").connect_lazy();
+    let client = AiServiceClient::new(channel);
 
     tauri::Builder::default()
         .manage(AppState {
             grpc_client: Mutex::new(client),
-            current_chat: Mutex::new(None),
+            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,
-            prompt_llm,
             chat_history,
+            set_chat_id,
             chat,
+            daemon_state,
+            toggle_dark_mode,
         ])
         .setup(|app| {
             /* Auto-hide popup when focus is lost

frontend/src-tauri/tauri.conf.json

@@ -22,8 +22,8 @@
         "label": "popup",
         "title": "AI Quick Action",
         "url": "/popup",
-        "width": 800,
-        "height": 400,
+        "width": 960,
+        "height": 720,
         "decorations": false,
         "transparent": true,
         "alwaysOnTop": true,

frontend/src/app.rs

@@ -1,10 +1,21 @@
-use crate::bridge::invoke;
-use crate::popup::Popup;
+use std::time::Duration;
+
+use feshared::{chatmessage::TauriCommand, daemon::DaemonState};
 use leptos::{prelude::*, reactive::spawn_local};
 use leptos_router::{
     components::{Route, Router, Routes},
     path,
 };
+use wasm_bindgen::JsValue;
+
+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";
 
 #[component]
 pub fn App() -> impl IntoView {
@@ -12,7 +23,7 @@ pub fn App() -> impl IntoView {
         <Router>
             <Routes fallback=|| view! { "Page not found."}>
                 <Route path=path!("/") view=Dashboard />
-                <Route path=path!("/popup") view=Popup />
+                <Route path=path!("/popup") view=PopupView />
             </Routes>
         </Router>
     }
@@ -23,22 +34,62 @@ 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;
-        });
-    };
-    let prompt = |_ev: leptos::ev::MouseEvent| {
-        spawn_local(async {
-            let prompt =
-                serde_wasm_bindgen::to_value(&serde_json::json!({"prompt": "jee juu juu"}))
-                    .unwrap();
-            invoke("prompt_llm", prompt).await;
+            invoke_js(TauriCommand::TogglePopup, empty_args).await;
         });
     };
     view! {
-        <main class="window-shell opaque-bg">
-            <h1>"AI Dashboard"</h1>
-            <button on:click=on_click>Test popup</button>
-            <button on:click=prompt>Prompt!</button>
-        </main>
+        <ThemeProvider>
+            <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>
+                </div>
+            </DaemonProvider>
+            <div class="fixed bottom-0 right-0 p-2">
+                <DarkModeToggle />
+            </div>
+        </ThemeProvider>
+    }
+}
+
+#[component]
+pub fn DaemonStatusIndicator() -> 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 = LocalResource::new(move || async move {
+        poll_count.get();
+        let s: DaemonState = invoke_typed(TauriCommand::DaemonState, JsValue::NULL).await;
+        s
+    });
+
+    let f = |state: Option<DaemonState>| {
+        let color = match state.clone() {
+            Some(s) => match s.is_ok {
+                true => "bg-green-600",
+                false => "bg-red-600",
+            },
+            None => "bg-yellow-600",
+        };
+        let text = match state {
+            Some(s) => match s.error {
+                Some(err) => err,
+                None => s.message.unwrap_or(String::from("")),
+            },
+            None => String::from("Loading..."),
+        };
+        view! {
+            <div class="flex">
+                <div class={format!("mt-1 h-4 w-4 rounded-full flex-none {color}")}></div>
+                <span class="ml-2 flex-none text-gray-400 dark:text-gray-600">{ text }</span>
+            </div>
+        }
+    };
+
+    view! {
+        <div>
+        {move || f(status.get())}
+        </div>
     }
 }

frontend/src/bridge.rs

@@ -1,6 +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

@@ -1,27 +1,45 @@
-use crate::bridge::invoke;
-use feshared::chatmessage::{Message, MessageHistory};
+use crate::{
+    bridge::{invoke_js, invoke_typed},
+    components::{ConfirmDialog, DaemonProvider, DarkModeToggle, ThemeProvider},
+};
+use feshared::{
+    chatmessage::{Message, MessageHistory, TauriCommand},
+    daemon::DaemonState,
+};
 use leptos::{ev::keydown, html::Input, prelude::*};
 use wasm_bindgen::{prelude::Closure, JsCast, JsValue};
 use wasm_bindgen_futures::spawn_local;
 
+#[component]
+pub fn PopupView() -> impl IntoView {
+    view! {<ThemeProvider>
+        <DaemonProvider>
+            <Popup />
+        </DaemonProvider>
+    </ThemeProvider>
+    }
+}
+
 #[component]
 pub fn Popup() -> impl IntoView {
     // Prompt signals and and action
     let prompt_input_ref = NodeRef::<Input>::new();
     let (prompt_text, set_prompt_text) = signal(String::new());
     let (messages, set_messages) = signal(Vec::<Message>::new());
+    let status_res =
+        use_context::<LocalResource<DaemonState>>().expect("No daemon connection context!");
 
     let init_history = Action::new_local(|(): &()| async move {
-        let response = invoke(
-            "chat_history",
-            serde_wasm_bindgen::to_value(&serde_json::json!({"chat_id": 1})).unwrap(),
-        )
-        .await;
-        let history: MessageHistory = serde_wasm_bindgen::from_value(response).unwrap();
+        let history: MessageHistory =
+            invoke_typed(TauriCommand::ChatHistory, JsValue::UNDEFINED).await;
         history
     });
-    Effect::new(move |_| {
+    Effect::new(move |prev_status: Option<bool>| {
+        let current_ok = status_res.get().map(|s| s.is_ok).unwrap_or(false);
+        if current_ok && prev_status != Some(true) {
             init_history.dispatch(());
+        }
+        current_ok
     });
     Effect::new(move |_| {
         if let Some(mut dat) = init_history.value().get() {
@@ -29,16 +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(
-                "chat",
+            let result: Vec<Message> = invoke_typed(
+                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
         }
     });
@@ -68,15 +97,31 @@ 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! {
-        <main class="window-shell rounded-container">
+        <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="relative p-3">
                 <input
-                class="dark-input"
+                    class="w-full p-3 rounded-lg bg-zinc-200 dark:bg-zinc-950"
                     type="text"
                     node_ref=prompt_input_ref
                     placeholder="Prompt..."
@@ -90,7 +135,14 @@ pub fn Popup() -> impl IntoView {
                     }
                     prop:value=prompt_text
                     />
-            <div class="response-area">
+                <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-4">
+                <div class="flex flex-col">
                     <For each=move || messages.get()
                     key=|msg| msg.id
                     let(msg)
@@ -99,5 +151,7 @@ pub fn Popup() -> impl IntoView {
                     </For>
                 </div>
             </main>
+            <div class="fixed bottom-0 right-0 p-2"><DarkModeToggle /></div>
+        </div>
     }
 }

frontend/styles-input.css

@@ -0,0 +1,37 @@
+@import "tailwindcss";
+
+@custom-variant dark (&:where(.dark, .dark *));
+
+@layer components {
+    .msg {
+        @apply rounded-lg mb-5 px-3 py-2 dark:bg-gray-800 max-w-[75%];
+    }
+
+    .msg-model {
+        @apply self-start bg-blue-200 dark:bg-slate-800;
+    }
+
+    .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 {
+    background-color: transparent !important;
+    margin: 0;
+}
+
+@keyframes slideIn {
+    from {
+        opacity: 0;
+        transform: translateY(10px) scale(0.95);
+    }
+    to {
+        opacity: 1;
+        transform: translateY(0) scale(1);
+    }
+}

frontend/tailwind.config.js

@@ -0,0 +1,10 @@
+/** @type {import('tailwindcss').Config} */
+module.exports = {
+  darkMode: "selector",
+  content: ["./src/**/*.rs", "./index.html"],
+  theme: {
+    fontFamily: {
+      sans: ["Inter", "serif"],
+    },
+  },
+};