fix(plugin): execute `on_load` function

Now function `on_load` will be executed if the plugin is loads.
Added span to the logger on TRACE level in plugin loader.
Fixed clippy warning from previous commit.

src/plugins/load.rs

@@ -1,7 +1,8 @@
 use std::{fs, path::Path, sync::Arc};
 
+use async_std::task;
 use libloading::{Library, Symbol};
-use tracing::{info, trace};
+use tracing::{info, span, trace, Level};
 
 use crate::{
     commands,
@@ -30,6 +31,10 @@ pub fn loader(plugins_dir: &str) -> anyhow::Result<PluginsManagerType> {
         let path = plugin_path?.path();
         let path_str = path.to_str().unwrap();
 
+        // add span to logger
+        let span = span!(Level::TRACE, "", plugin_path = path_str);
+        let _enter = span.enter();
+
         info!("Loading plugin {}", path_str);
 
         // loading library from .so is unsafe
@@ -48,5 +53,11 @@ pub fn loader(plugins_dir: &str) -> anyhow::Result<PluginsManagerType> {
         }
     }
 
+    for plugin in plugins_manager.plugins.iter() {
+        // execute the `on_load` function from the plugin
+        task::block_on(async { plugin.on_load().await });
+        info!("Loaded plugin {}.", plugin.name());
+    }
+
     Ok(Arc::new(plugins_manager))
 }

src/server/run.rs

@@ -90,15 +90,16 @@ async fn process(client: Client) -> anyhow::Result<()> {
             // to block a command return error in the `onCommand` event
             if let Some((_i, cmd)) = command {
                 // run `onCommand` events
-                if let Ok(_) = client
+                if client
                     .run_events(
                         EventType::OnCommand,
                         EventData::Command(cmd.name().to_string()),
                     )
                     .await
+                    .is_ok()
                 {
                     // execute command
-                    cmd.execute(&client, args).await?;
+                    cmd.execute(client, args).await?;
                 }
             } else {
                 client.send("unknown command")?;