Add basic chat plugin harness (no plugin loading implemented)

rc_chat_room/Cargo.toml

@@ -23,3 +23,5 @@ async-trait.workspace = true
 git-version.workspace = true
 chrono.workspace = true
 oj_serdes.workspace = true
+oj_rc_plugins = { version = "*", path = "../rc_plugins" }
+futures.workspace = true

rc_chat_room/src/main.rs

@@ -3,6 +3,8 @@ mod cli;
 mod state;
 mod op_handler;
 pub use op_handler::SimpleChatFunc;
+mod plugin_wrapper;
+pub use plugin_wrapper::{PluginWrapper, ProviderWrapper};
 
 mod data;
 mod operations;

rc_chat_room/src/plugin_wrapper.rs

@@ -0,0 +1,53 @@
+pub struct PluginWrapper {
+    plugins: Vec<std::sync::Arc<Box<dyn oj_rc_plugins::chat::ChatPlugin>>>,
+}
+
+impl PluginWrapper {
+    pub fn new(plugins: impl IntoIterator<Item=Box<dyn oj_rc_plugins::chat::ChatPlugin>>) -> Self {
+        Self {
+            plugins: plugins.into_iter().map(std::sync::Arc::new).collect(),
+        }
+    }
+
+    pub fn set_provider(&self, provider: std::sync::Arc<Box<dyn oj_rc_plugins::chat::ChatProvider>>) {
+        for plugin in self.plugins.iter() {
+            plugin.set_provider(provider.clone());
+        }
+    }
+
+    pub async fn on_message(&self, message: &str, channel: &str, username: &str) {
+        let mut futures = Vec::with_capacity(self.plugins.len());
+        for plugin in self.plugins.iter() {
+            let owned_plugin = plugin.to_owned();
+            let owned_message = message.to_owned();
+            let owned_channel = channel.to_owned();
+            let owned_username = username.to_owned();
+            let handle = tokio::task::spawn_blocking(move || owned_plugin.on_message(&owned_message, &owned_channel, &owned_username));
+            futures.push(handle);
+        }
+        futures::future::join_all(futures).await;
+    }
+}
+
+pub struct ProviderWrapper {
+    provider: std::sync::Arc<tokio::sync::RwLock<crate::state::chat::ChatSystem>>,
+}
+
+impl ProviderWrapper {
+    pub fn new(provider: std::sync::Arc<tokio::sync::RwLock<crate::state::chat::ChatSystem>>) -> Self {
+        Self {
+            provider,
+        }
+    }
+
+    async fn do_send_message(provider: std::sync::Arc<tokio::sync::RwLock<crate::state::chat::ChatSystem>>, message: String, channel: String, username: String) {
+        provider.read().await
+            .send_fake_message(message, channel, username).await;
+    }
+}
+
+impl oj_rc_plugins::chat::ChatProvider for ProviderWrapper {
+    fn send_message(&self, message: &str, channel: &str, username: &str) {
+        tokio::task::spawn(Self::do_send_message(self.provider.clone(), message.to_owned(), channel.to_owned(), username.to_owned()));
+    }
+}

rc_chat_room/src/state/chat/chat.rs

@@ -19,12 +19,18 @@ impl ChatProvider {
     pub async fn system_mut(&self) -> tokio::sync::RwLockWriteGuard<'_, crate::state::chat::ChatSystem> {
         self.chat_system.write().await
     }
+
+    pub async fn init_provider(&self) {
+        let provider = crate::ProviderWrapper::new(self.chat_system.clone());
+        self.chat_system.read().await.plugin.set_provider(std::sync::Arc::new(Box::new(provider)));
+    }
 }
 
 pub struct ChatSystem {
     chats: HashMap<String, super::ChatRoom>,
     online_users: HashMap<String, super::UserHandle>,
     config: super::ChatSystemConfig,
+    plugin: crate::PluginWrapper,
 }
 
 impl ChatSystem {
@@ -53,6 +59,10 @@ impl ChatSystem {
         total_removed_users + to_be_removed.len()
     }
 
+    pub(crate) fn get_channel(&self, channel: &str) -> Option<&super::ChatRoom> {
+        self.chats.get(&channel.to_lowercase())
+    }
+
     pub fn connect_user(&mut self, display_name: String, channels: Vec<String>, event_tx: tokio::sync::mpsc::UnboundedSender<polariton_server::ToSend>) {
         self.cleanup();
         let handle = super::UserHandle::from_strong_sender(event_tx, display_name.clone());
@@ -92,11 +102,11 @@ impl ChatSystem {
             if let Some(user_handle) = self.online_users.get(user.public_id()) {
                 self.handle_public_command(user, text, user_handle, channel, channel_ty).await;
             }
-        } else if let Some(room) = self.chats.get(&channel.to_lowercase()) {
+        } else if let Some(room) = self.get_channel(&channel) {
             let event_params = crate::events::chat_message::PublicMessage {
                 sender_name: user.public_id().to_owned(),
                 sender_display_name: user.display_name().to_owned(),
-                text,
+                text: text.clone(),
                 is_dev: user.is_dev(),
                 is_mod: user.is_mod(),
                 is_admin: user.is_admin(),
@@ -104,11 +114,32 @@ impl ChatSystem {
                 channel_ty,
             };
             room.send_public_message(event_params);
+            self.plugin.on_message(&text, &room.canon_name(), user.display_name()).await;
         } else {
             log::warn!("Got message for non-existent chat room {} (variant: {:?})", channel, channel_ty);
         }
     }
 
+    pub async fn send_fake_message(&self, message: String, channel: String, username: String) -> bool {
+        if let Some(room) = self.get_channel(&channel) {
+            let event_params = crate::events::chat_message::PublicMessage {
+                sender_name: username.clone(),
+                sender_display_name: username.clone(),
+                text: message.clone(),
+                is_dev: false,
+                is_mod: false,
+                is_admin: false,
+                channel_name: room.canon_name(),
+                channel_ty: crate::data::channel::ChatChannelType::Public,
+            };
+            room.send_public_message(event_params);
+            self.plugin.on_message(&message, &room.canon_name(), &username).await;
+            true
+        } else {
+            false
+        }
+    }
+
     async fn handle_public_command(&self, user: &dyn oj_rc_core::persist::user::User<()>, text: String, handle: &super::UserHandle, channel: String, channel_ty: crate::data::channel::ChatChannelType) {
         let event_params = crate::events::chat_message::PublicMessage {
             sender_name: self.config.command_username().to_owned(),
@@ -172,6 +203,7 @@ impl ChatSystem {
             chats: HashMap::new(),
             online_users: HashMap::new(),
             config: super::ChatSystemConfig::from_persist(config)?,
+            plugin: crate::PluginWrapper::new(vec![]), // TODO construct plugins
         })
     }