1 files changed, 43 insertions, 3 deletions

diff --git a/crates/dinggerd/src/tmux.rs b/crates/dinggerd/src/tmux.rs
index edd44aa..cba1ca6 100644
--- a/crates/dinggerd/src/tmux.rs
+++ b/crates/dinggerd/src/tmux.rs
@@ -26,6 +26,9 @@ pub struct Pane {
     pub written_state: String,
     /// The `@agent` user option (agent label) previously written, if any.
     pub written_agent: String,
+    /// The `@dingger_ack` user option: "1" when the user already jumped to
+    /// this pane in its current ready episode.
+    pub written_ack: String,
 }
 
 impl Pane {
@@ -70,7 +73,8 @@ pub fn list_panes() -> Result<Vec<Pane>, String> {
         "#{pane_start_command}\t",
         "#{pane_pid}\t",
         "#{@agent_state}\t",
-        "#{@agent}"
+        "#{@agent}\t",
+        "#{@dingger_ack}"
     );
     let out = run_tmux(&["list-panes", "-a", "-F", format])?;
     let mut panes = Vec::new();
@@ -104,6 +108,7 @@ pub fn list_panes() -> Result<Vec<Pane>, String> {
             agent,
             written_state: fields[9].to_string(),
             written_agent: fields[10].to_string(),
+            written_ack: fields.get(11).copied().unwrap_or("").to_string(),
         });
     }
     Ok(panes)
@@ -166,6 +171,19 @@ fn fetch_process_tree() -> ProcessTree {
     (children, comm)
 }
 
+/// Run a tmux command whose effect is an action (e.g. switch-client), not
+/// output to parse.
+pub fn run_tmux_client(args: &[&str]) -> Result<(), String> {
+    run_tmux(args).map(|_| ())
+}
+
+/// Read a format expansion for one pane.
+pub fn show_pane_format(pane_id: &str, format: &str) -> Option<String> {
+    run_tmux(&["display-message", "-p", "-t", pane_id, format])
+        .ok()
+        .map(|value| value.trim().to_string())
+}
+
 /// Capture the pane's visible screen as plain text — the exact input shape
 /// the detection manifests expect.
 pub fn capture_pane(pane_id: &str) -> Result<String, String> {
@@ -187,6 +205,28 @@ pub fn set_agent_state(pane_id: &str, state: AgentState) -> Result<(), String> {
 /// Label the pane with the agent running in it, for tmux status-line and
 /// menu-bar rendering; clears the label when the pane stops running one.
 pub fn set_agent(pane_id: &str, agent: Option<Agent>) -> Result<(), String> {
-    let label = agent.map(detect_core::agent_label).unwrap_or("");
-    run_tmux(&["set-option", "-p", "-t", pane_id, "@agent", label]).map(|_| ())
+        let label = agent.map(detect_core::agent_label).unwrap_or("");
+        run_tmux(&["set-option", "-p", "-t", pane_id, "@agent", label]).map(|_| ())
+}
+
+/// Write a server-global option (readable from any client and from formats).
+pub fn set_global(name: &str, value: &str) -> Result<(), String> {
+    run_tmux(&["set-option", "-g", name, value]).map(|_| ())
+}
+
+pub fn show_global(name: &str) -> Option<String> {
+    run_tmux(&["show-option", "-gv", name])
+        .ok()
+        .map(|value| value.trim().to_string())
+        .filter(|value| !value.is_empty())
+}
+
+/// Mark a pane as seen by the user after `dingger focus`: taken out of the
+/// ready queue until its next state transition.
+pub fn ack(pane_id: &str) -> Result<(), String> {
+    run_tmux(&["set-option", "-p", "-t", pane_id, "@dingger_ack", "1"]).map(|_| ())
+}
+
+pub fn clear_ack(pane_id: &str) -> Result<(), String> {
+    run_tmux(&["set-option", "-p", "-t", pane_id, "-u", "@dingger_ack"]).map(|_| ())
 }