feat: add bulk delete for session manager (#1693)

* feat: add bulk delete for session manager

* fix: address batch delete review issues

* fix: keep session list in sync after batch delete

src-tauri/src/session_manager/mod.rs

@@ -1,7 +1,7 @@
 pub mod providers;
 pub mod terminal;
 
-use serde::Serialize;
+use serde::{Deserialize, Serialize};
 use std::path::{Path, PathBuf};
 
 use providers::{claude, codex, gemini, openclaw, opencode};
@@ -36,6 +36,25 @@ pub struct SessionMessage {
     pub ts: Option<i64>,
 }
 
+#[derive(Debug, Clone, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct DeleteSessionRequest {
+    pub provider_id: String,
+    pub session_id: String,
+    pub source_path: String,
+}
+
+#[derive(Debug, Clone, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct DeleteSessionOutcome {
+    pub provider_id: String,
+    pub session_id: String,
+    pub source_path: String,
+    pub success: bool,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub error: Option<String>,
+}
+
 pub fn scan_sessions() -> Vec<SessionMeta> {
     let (r1, r2, r3, r4, r5) = std::thread::scope(|s| {
         let h1 = s.spawn(codex::scan_sessions);
@@ -99,6 +118,16 @@ pub fn delete_session(
     delete_session_with_root(provider_id, session_id, Path::new(source_path), &root)
 }
 
+pub fn delete_sessions(requests: &[DeleteSessionRequest]) -> Vec<DeleteSessionOutcome> {
+    collect_delete_session_outcomes(requests, |request| {
+        delete_session(
+            &request.provider_id,
+            &request.session_id,
+            &request.source_path,
+        )
+    })
+}
+
 fn delete_session_with_root(
     provider_id: &str,
     session_id: &str,
@@ -147,6 +176,41 @@ fn canonicalize_existing_path(path: &Path, label: &str) -> Result<PathBuf, Strin
         .map_err(|e| format!("Failed to resolve {label} {}: {e}", path.display()))
 }
 
+fn collect_delete_session_outcomes<F>(
+    requests: &[DeleteSessionRequest],
+    mut deleter: F,
+) -> Vec<DeleteSessionOutcome>
+where
+    F: FnMut(&DeleteSessionRequest) -> Result<bool, String>,
+{
+    requests
+        .iter()
+        .map(|request| match deleter(request) {
+            Ok(true) => DeleteSessionOutcome {
+                provider_id: request.provider_id.clone(),
+                session_id: request.session_id.clone(),
+                source_path: request.source_path.clone(),
+                success: true,
+                error: None,
+            },
+            Ok(false) => DeleteSessionOutcome {
+                provider_id: request.provider_id.clone(),
+                session_id: request.session_id.clone(),
+                source_path: request.source_path.clone(),
+                success: false,
+                error: Some("Session was not deleted".to_string()),
+            },
+            Err(error) => DeleteSessionOutcome {
+                provider_id: request.provider_id.clone(),
+                session_id: request.session_id.clone(),
+                source_path: request.source_path.clone(),
+                success: false,
+                error: Some(error),
+            },
+        })
+        .collect()
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -175,4 +239,44 @@ mod tests {
 
         assert!(err.contains("session source not found"));
     }
+
+    #[test]
+    fn batch_delete_collects_successes_and_failures_in_order() {
+        let requests = vec![
+            DeleteSessionRequest {
+                provider_id: "codex".to_string(),
+                session_id: "s1".to_string(),
+                source_path: "/tmp/s1".to_string(),
+            },
+            DeleteSessionRequest {
+                provider_id: "claude".to_string(),
+                session_id: "s2".to_string(),
+                source_path: "/tmp/s2".to_string(),
+            },
+            DeleteSessionRequest {
+                provider_id: "gemini".to_string(),
+                session_id: "s3".to_string(),
+                source_path: "/tmp/s3".to_string(),
+            },
+        ];
+
+        let outcomes = collect_delete_session_outcomes(&requests, |request| {
+            match request.session_id.as_str() {
+                "s1" => Ok(true),
+                "s2" => Err("boom".to_string()),
+                _ => Ok(false),
+            }
+        });
+
+        assert_eq!(outcomes.len(), 3);
+        assert!(outcomes[0].success);
+        assert_eq!(outcomes[0].error, None);
+        assert!(!outcomes[1].success);
+        assert_eq!(outcomes[1].error.as_deref(), Some("boom"));
+        assert!(!outcomes[2].success);
+        assert_eq!(
+            outcomes[2].error.as_deref(),
+            Some("Session was not deleted")
+        );
+    }
 }