feat: Send chat requests and responses when the user is online

Signed-off-by: Awiteb <a@4rs.nl>

crates/oxidetalis/src/database/incoming_chat.rs

@@ -32,6 +32,25 @@ pub trait IncomingChatExt {
         chat_request_sender: &PublicKey,
     ) -> ServerResult<()>;
 
+    /// Returns all incoming chat requests for the given recipient
+    async fn get_all_chat_requests(
+        &self,
+        chat_request_recipient: &UserModel,
+    ) -> ServerResult<Vec<IncomingChatModel>>;
+
+    /// Save the incoming chat response
+    async fn save_in_chat_response(
+        &self,
+        chat_response_recipient: &UserModel,
+        chat_response_sender: &PublicKey,
+        accepted_response: bool,
+    ) -> ServerResult<()>;
+
+    /// Returns all incoming chat responses for the given recipient
+    async fn get_all_chat_responses(
+        &self,
+        chat_response_recipient: &UserModel,
+    ) -> ServerResult<Vec<IncomingChatModel>>;
 }
 
 impl IncomingChatExt for DatabaseConnection {
@@ -40,11 +59,53 @@ impl IncomingChatExt for DatabaseConnection {
         &self,
         chat_request_recipient: &UserModel,
         chat_request_sender: &PublicKey,
+    ) -> ServerResult<()> {
+        save(self, chat_request_recipient, chat_request_sender, None).await
+    }
+
+    async fn get_all_chat_requests(
+        &self,
+        chat_request_recipient: &UserModel,
+    ) -> ServerResult<Vec<IncomingChatModel>> {
+        get_all::<true>(self, chat_request_recipient).await
+    }
+
+    #[logcall::logcall]
+    async fn save_in_chat_response(
+        &self,
+        chat_response_recipient: &UserModel,
+        chat_response_sender: &PublicKey,
+        accepted_response: bool,
+    ) -> ServerResult<()> {
+        save(
+            self,
+            chat_response_recipient,
+            chat_response_sender,
+            Some(accepted_response),
+        )
+        .await
+    }
+
+    async fn get_all_chat_responses(
+        &self,
+        chat_response_recipient: &UserModel,
+    ) -> ServerResult<Vec<IncomingChatModel>> {
+        get_all::<false>(self, chat_response_recipient).await
+    }
+}
+
+/// Utility function to save incoming chat request or response
+async fn save(
+    db: &DatabaseConnection,
+    recipient: &UserModel,
+    sender: &PublicKey,
+    accepted_response: Option<bool>,
 ) -> ServerResult<()> {
     IncomingChatEntity::insert(IncomingChatActiveModel {
-            recipient_id: Set(chat_request_recipient.id),
+        recipient_id: Set(recipient.id),
-            sender: Set(*chat_request_sender),
+        sender: Set(*sender),
         received_timestamp: Set(Utc::now()),
+        accepted_response: Set(accepted_response),
         ..Default::default()
     })
     .on_conflict(
@@ -56,8 +117,26 @@ impl IncomingChatExt for DatabaseConnection {
         .do_nothing()
         .to_owned(),
     )
-        .exec(self)
+    .exec(db)
     .await?;
     Ok(())
 }
 
+/// Utility function to get all incoming chat requests or responses
+async fn get_all<const IS_REQUEST: bool>(
+    db: &DatabaseConnection,
+    recipient: &UserModel,
+) -> ServerResult<Vec<IncomingChatModel>> {
+    recipient
+        .find_related(IncomingChatEntity)
+        .filter(
+            if IS_REQUEST {
+                IncomingChatColumn::AcceptedResponse.is_null()
+            } else {
+                IncomingChatColumn::AcceptedResponse.is_not_null()
+            },
+        )
+        .all(db)
+        .await
+        .map_err(Into::into)
+}

crates/oxidetalis/src/websocket/handlers/chat_request.rs

@@ -141,8 +141,9 @@ pub async fn handle_chat_response(
             )
             .await;
     } else {
-        // TODO: Create a table for chat request responses, and send them when
+        try_ws!(Some
-        // the user logs in
+            db.save_in_chat_response(&response_recipient, &response_sender.public_key, accepted).await
+        );
     }
 
     None

crates/oxidetalis/src/websocket/mod.rs

@@ -45,7 +45,7 @@ pub use events::*;
 use uuid::Uuid;
 
 use crate::{
-    database::UserTableExt,
+    database::{IncomingChatExt, UserTableExt},
     extensions::{DepotExt, OnlineUsersExt},
     middlewares,
     nonce::NonceCache,
@@ -145,8 +145,9 @@ async fn handle_socket(
         .await;
     log::info!("New user connected: ConnId(={conn_id}) PublicKey(={user_public_key})");
 
-    // TODO: Send the incoming chat request to the user, while they are offline.
+    if let Some(server_user) = &user {
-    // This after adding last_login col to the user table
+        send_chat_requests_and_responses(&db_conn, &user_shared_secret, &sender, server_user).await;
+    }
 
     while let Some(Ok(msg)) = user_ws_receiver.next().await {
         match handle_ws_msg(msg, &nonce_cache, &user_shared_secret).await {
@@ -177,6 +178,56 @@ async fn handle_socket(
     user_disconnected(&db_conn, &conn_id, &user_public_key, user).await;
 }
 
+/// Send the incoming chat requests and responses to the user while they were
+/// offline
+///
+/// ### Note
+/// The errors are ignored, if there is an issue with user connection, the user
+/// will be disconnected after this function is called.
+///
+/// Also we make sure that the user receives the chat requests and responses
+/// before we delete them from the database.
+async fn send_chat_requests_and_responses(
+    db_conn: &DatabaseConnection,
+    user_shared_secret: &[u8; 32],
+    sender: &mpsc::UnboundedSender<Result<Message, salvo::Error>>,
+    server_user: &UserModel,
+) {
+    let Ok(requests) = db_conn.get_all_chat_requests(server_user).await else {
+        return;
+    };
+    let Ok(responses) = db_conn.get_all_chat_responses(server_user).await else {
+        return;
+    };
+
+    for request in requests {
+        if sender
+            .unbounded_send(Ok(ServerEvent::chat_request(&request.sender)
+                .sign(user_shared_secret)
+                .as_ref()
+                .into()))
+            .is_ok()
+        {
+            let _ = request.delete(db_conn).await;
+        }
+    }
+
+    for response in responses {
+        if sender
+            .unbounded_send(Ok(ServerEvent::chat_request_response(
+                response.sender,
+                response.accepted_response.unwrap_or_default(),
+            )
+            .sign(user_shared_secret)
+            .as_ref()
+            .into()))
+            .is_ok()
+        {
+            let _ = response.delete(db_conn).await;
+        }
+    }
+}
+
 /// Handle websocket msg
 async fn handle_ws_msg(
     msg: Message,