// tools/control.rs — Agent control tools
//
// These set agent state directly via the Arc<Mutex<Agent>> handle,
// then return a text confirmation.

pub(super) fn tools() -> [super::Tool; 3] {
    use super::Tool;
    [
        Tool { name: "switch_model",
               description: "Switch to a different LLM model mid-conversation. Memories and history carry over.",
               parameters_json: r#"{"type":"object","properties":{"model":{"type":"string","description":"Name of the model to switch to"}},"required":["model"]}"#,
               handler: |agent, v| Box::pin(async move {
                   let model = v.get("model").and_then(|v| v.as_str())
                       .ok_or_else(|| anyhow::anyhow!("'model' parameter is required"))?;
                   if model.is_empty() { anyhow::bail!("'model' parameter cannot be empty"); }
                   if let Some(agent) = agent {
                       let mut a = agent.state.lock().await;
                       a.pending_model_switch = Some(model.to_string());
                   }
                   Ok(format!("Switching to model '{}' after this turn.", model))
               }) },
        Tool { name: "pause",
               description: "Pause all autonomous behavior. Only the user can unpause (Ctrl+P or /wake).",
               parameters_json: r#"{"type":"object","properties":{}}"#,
               handler: |agent, _v| Box::pin(async move {
                   if let Some(agent) = agent {
                       let mut a = agent.state.lock().await;
                       a.pending_yield = true;
                       a.pending_dmn_pause = true;
                   }
                   Ok("Pausing autonomous behavior. Only user input will wake you.".into())
               }) },
        Tool { name: "yield_to_user",
               description: "Wait for user input before continuing. The only way to enter a waiting state.",
               parameters_json: r#"{"type":"object","properties":{"message":{"type":"string","description":"Optional status message"}}}"#,
               handler: |agent, v| Box::pin(async move {
                   let msg = v.get("message").and_then(|v| v.as_str()).unwrap_or("Waiting for input.");
                   if let Some(agent) = agent {
                       let mut a = agent.state.lock().await;
                       a.pending_yield = true;
                   }
                   Ok(format!("Yielding. {}", msg))
               }) },
    ]
}