feat: Hooks (#9093)

crates/goose-cli/src/session/mod.rs

@@ -500,6 +500,28 @@ impl CliSession {
 
     /// Start an interactive session, optionally with an initial message
     pub async fn interactive(&mut self, prompt: Option<String>) -> Result<()> {
+        self.agent
+            .emit_hook(goose::hooks::HookEvent::SessionStart, &self.session_id)
+            .await;
+
+        let result = self.run_interactive(prompt).await;
+
+        self.agent
+            .emit_hook(goose::hooks::HookEvent::SessionEnd, &self.session_id)
+            .await;
+
+        if result.is_ok() {
+            println!(
+                "\n  {} {}",
+                console::style("●").red(),
+                console::style(format!("session closed · {}", &self.session_id)).dim()
+            );
+        }
+
+        result
+    }
+
+    async fn run_interactive(&mut self, prompt: Option<String>) -> Result<()> {
         if let Some(prompt) = prompt {
             let msg = Message::user().with_text(&prompt);
             self.process_message(msg, CancellationToken::default(), true)
@@ -536,12 +558,6 @@ impl CliSession {
                 .await?;
         }
 
-        println!(
-            "\n  {} {}",
-            console::style("●").red(),
-            console::style(format!("session closed · {}", &self.session_id)).dim()
-        );
-
         Ok(())
     }
 
@@ -1044,9 +1060,17 @@ impl CliSession {
 
     /// Process a single message and exit
     pub async fn headless(&mut self, prompt: String) -> Result<()> {
+        self.agent
+            .emit_hook(goose::hooks::HookEvent::SessionStart, &self.session_id)
+            .await;
         let message = Message::user().with_text(&prompt);
-        self.process_message(message, CancellationToken::default(), false)
-            .await?;
+        let result = self
+            .process_message(message, CancellationToken::default(), false)
+            .await;
+        self.agent
+            .emit_hook(goose::hooks::HookEvent::SessionEnd, &self.session_id)
+            .await;
+        result?;
         Ok(())
     }