use super::ZedAgent;
use crate::acp;
use crate::acp::{AgentSideConnection, Client};
use crate::permissions::PermissionToolContext;
use crate::reports::{
TOOL_RESPONSE_KEY_STATUS, TOOL_RESPONSE_KEY_TOOL, TOOL_SUCCESS_LABEL, ToolExecutionReport,
};
use crate::tooling::{SupportedTool, ToolDescriptor};
use anyhow::Result;
use serde_json::{Value, json};
use std::sync::Arc;
use tokio::time::Instant;
use vtcode_core::config::constants::tools;
use vtcode_core::core::interfaces::SessionMode;
use vtcode_core::llm::provider::ToolCall as ProviderToolCall;
use vtcode_core::tools::tool_intent;
use super::super::types::{RunTerminalMode, SessionHandle, ToolCallResult};
impl ZedAgent {
pub(super) async fn execute_tool_calls(
&self,
session: &SessionHandle,
session_id: &acp::SessionId,
calls: &[ProviderToolCall],
) -> Result<Vec<ToolCallResult>, acp::Error> {
if calls.is_empty() {
return Ok(Vec::new());
}
let Some(client) = self.client() else {
return Ok(calls
.iter()
.map(|call| {
Self::tool_call_result_from_report(
call,
ToolExecutionReport::failure(
Self::tool_name_from_call(call),
"Client connection unavailable",
),
)
})
.collect());
};
let mut results = Vec::with_capacity(calls.len());
for call in calls {
self.pace_tool_call(session).await;
results.push(
self.execute_tool_call(session, session_id, call, client.as_ref())
.await?,
);
}
Ok(results)
}
async fn execute_tool_call(
&self,
session: &SessionHandle,
session_id: &acp::SessionId,
call: &ProviderToolCall,
client: &AgentSideConnection,
) -> Result<ToolCallResult, acp::Error> {
let Some(func_ref) = call.function.as_ref() else {
return Ok(Self::tool_call_result_from_report(
call,
ToolExecutionReport::failure(
"unknown",
"Malformed tool call: missing function payload",
),
));
};
let tool_descriptor = self.acp_tool_registry.lookup(&func_ref.name);
let args_value_result: Result<Value, _> = serde_json::from_str(&func_ref.arguments);
let args_value_for_input = args_value_result.as_ref().ok().cloned();
let title = match (tool_descriptor, args_value_for_input.as_ref()) {
(Some(descriptor), Some(args)) => {
self.acp_tool_registry
.render_title(descriptor, &func_ref.name, args)
}
(Some(descriptor), None) => {
let null_args = Value::Null;
self.acp_tool_registry
.render_title(descriptor, &func_ref.name, &null_args)
}
(None, _) => format!("{} (unsupported)", func_ref.name),
};
let call_id = acp::ToolCallId::new(Arc::from(call.id.clone()));
let kind = match tool_descriptor {
Some(ToolDescriptor::Acp(tool)) => tool.kind(),
Some(ToolDescriptor::Local) | None => self
.acp_tool_registry
.tool_kind_for_call(&func_ref.name, args_value_for_input.as_ref()),
};
let initial_call = acp::ToolCall::new(call_id.clone(), title)
.kind(kind)
.status(acp::ToolCallStatus::Pending)
.raw_input(args_value_for_input.clone());
self.send_update(
session_id,
acp::SessionUpdate::ToolCall(initial_call.clone()),
)
.await?;
let permission_override = if let (false, Some(descriptor), Ok(args_value)) = (
session.cancel_flag.get(),
tool_descriptor,
args_value_result.as_ref(),
) {
self.request_tool_permission(
client,
session_id,
&initial_call,
descriptor,
PermissionToolContext::new(&func_ref.name, kind, initial_call.title.as_str()),
args_value,
)
.await?
} else {
None
};
if tool_descriptor.is_some() && permission_override.is_none() && !session.cancel_flag.get()
{
let in_progress_fields =
acp::ToolCallUpdateFields::default().status(acp::ToolCallStatus::InProgress);
let progress_update = acp::ToolCallUpdate::new(call_id.clone(), in_progress_fields);
self.send_update(
session_id,
acp::SessionUpdate::ToolCallUpdate(progress_update),
)
.await?;
}
let mut report = if let Some(report) = permission_override {
report
} else if session.cancel_flag.get() {
ToolExecutionReport::cancelled(&func_ref.name)
} else {
match (tool_descriptor, args_value_result) {
(Some(descriptor), Ok(args_value)) => {
self.execute_descriptor(
descriptor,
&func_ref.name,
client,
session_id,
call.id.as_str(),
&args_value,
)
.await
}
(None, Ok(_)) => ToolExecutionReport::failure(&func_ref.name, "Unsupported tool"),
(_, Err(error)) => ToolExecutionReport::failure(
&func_ref.name,
&format!("Invalid JSON arguments: {error}"),
),
}
};
if session.cancel_flag.get() && matches!(report.status, acp::ToolCallStatus::Completed) {
report = ToolExecutionReport::cancelled(&func_ref.name);
}
let update = acp::ToolCallUpdate::new(call_id, Self::update_fields_from_report(&report));
self.send_update(session_id, acp::SessionUpdate::ToolCallUpdate(update))
.await?;
Ok(Self::tool_call_result_from_report(call, report))
}
async fn pace_tool_call(&self, session: &SessionHandle) {
let Some(delay) = self.tool_call_delay else {
return;
};
let sleep_for = {
let data = session.data.borrow();
data.last_tool_call_at.and_then(|last_call| {
let elapsed = last_call.elapsed();
(elapsed < delay).then_some(delay - elapsed)
})
};
if let Some(duration) = sleep_for {
tokio::time::sleep(duration).await;
}
session.data.borrow_mut().last_tool_call_at = Some(Instant::now());
}
fn tool_name_from_call(call: &ProviderToolCall) -> &str {
call.function
.as_ref()
.map(|function| function.name.as_str())
.unwrap_or("unknown")
}
fn tool_call_result_from_report(
call: &ProviderToolCall,
report: ToolExecutionReport,
) -> ToolCallResult {
ToolCallResult {
tool_call_id: call.id.clone(),
llm_response: report.llm_response,
}
}
fn update_fields_from_report(report: &ToolExecutionReport) -> acp::ToolCallUpdateFields {
let mut fields = acp::ToolCallUpdateFields::default().status(report.status);
if !report.content.is_empty() {
fields = fields.content(report.content.clone());
}
if !report.locations.is_empty() {
fields = fields.locations(report.locations.clone());
}
if let Some(raw_output) = &report.raw_output {
fields = fields.raw_output(raw_output.clone());
}
fields
}
async fn execute_descriptor(
&self,
descriptor: ToolDescriptor,
tool_name: &str,
client: &AgentSideConnection,
session_id: &acp::SessionId,
call_id: &str,
args: &Value,
) -> ToolExecutionReport {
if should_route_terminal_via_client(tool_name, args)
&& let Some(report) = self
.execute_terminal_via_client(tool_name, client, session_id, args)
.await
{
return report;
}
match descriptor {
ToolDescriptor::Acp(tool) => {
self.execute_acp_tool(tool, client, session_id, args).await
}
ToolDescriptor::Local => self.execute_local_tool(tool_name, args, call_id).await,
}
}
async fn request_tool_permission(
&self,
client: &AgentSideConnection,
session_id: &acp::SessionId,
call: &acp::ToolCall,
descriptor: ToolDescriptor,
tool: PermissionToolContext<'_>,
args: &Value,
) -> Result<Option<ToolExecutionReport>, acp::Error> {
match descriptor {
ToolDescriptor::Acp(tool) => {
self.permission_prompter
.request_tool_permission(client, session_id, call, tool, args)
.await
}
ToolDescriptor::Local => {
self.permission_prompter
.request_named_tool_permission(client, session_id, call, tool, args)
.await
}
}
}
async fn execute_terminal_via_client(
&self,
tool_name: &str,
client: &AgentSideConnection,
session_id: &acp::SessionId,
args: &Value,
) -> Option<ToolExecutionReport> {
if !self.client_supports_terminal() {
return None;
}
match Self::requested_terminal_mode(args) {
Ok(RunTerminalMode::Terminal) => None,
Ok(RunTerminalMode::Pty) => Some(
match self
.launch_client_terminal(tool_name, client, session_id, args)
.await
{
Ok(report) => report,
Err(message) => ToolExecutionReport::failure(tool_name, &message),
},
),
Err(message) => Some(ToolExecutionReport::failure(tool_name, &message)),
}
}
async fn launch_client_terminal(
&self,
tool_name: &str,
client: &AgentSideConnection,
session_id: &acp::SessionId,
args: &Value,
) -> Result<ToolExecutionReport, String> {
let command_parts = Self::parse_terminal_command(args)?;
let (program, rest) = command_parts
.split_first()
.ok_or_else(|| "command array cannot be empty".to_string())?;
let working_dir = self.resolve_terminal_working_dir(args)?;
let location_display = self.describe_terminal_location(working_dir.as_ref());
let command_display = command_parts.join(" ");
let request = acp::CreateTerminalRequest::new(session_id.clone(), program.to_string())
.args(rest.to_vec())
.cwd(working_dir.clone());
let response = client
.create_terminal(request)
.await
.map_err(|error| format!("Failed to create terminal: {error}"))?;
let terminal_id = response.terminal_id;
let mut content = Vec::with_capacity(2);
let summary = match location_display.as_deref() {
Some(".") | None => format!("Started terminal command: {command_display}"),
Some(location) => {
format!("Started terminal command in {location}: {command_display}")
}
};
content.push(acp::ToolCallContent::from(summary));
content.push(acp::ToolCallContent::Terminal(acp::Terminal::new(
terminal_id.clone(),
)));
let payload = json!({
TOOL_RESPONSE_KEY_STATUS: TOOL_SUCCESS_LABEL,
TOOL_RESPONSE_KEY_TOOL: tool_name,
"result": {
"terminal_id": terminal_id.to_string(),
"mode": "pty",
"command": command_parts,
"working_dir": location_display,
}
});
Ok(ToolExecutionReport::success(content, Vec::new(), payload))
}
async fn execute_acp_tool(
&self,
tool: SupportedTool,
client: &AgentSideConnection,
session_id: &acp::SessionId,
args: &Value,
) -> ToolExecutionReport {
match tool {
SupportedTool::ReadFile => self
.run_read_file(client, session_id, args)
.await
.unwrap_or_else(|message| ToolExecutionReport::failure(tools::READ_FILE, &message)),
SupportedTool::ListFiles => self.run_list_files(args).await.unwrap_or_else(|message| {
ToolExecutionReport::failure(tools::LIST_FILES, &message)
}),
SupportedTool::SwitchMode => self
.run_switch_mode(session_id, args)
.await
.unwrap_or_else(|message| ToolExecutionReport::failure("switch_mode", &message)),
}
}
pub(crate) async fn run_switch_mode(
&self,
session_id: &acp::SessionId,
args: &Value,
) -> Result<ToolExecutionReport, String> {
let mode_id = args
.get("mode_id")
.and_then(Value::as_str)
.ok_or_else(|| "missing mode_id".to_string())?;
let mode =
SessionMode::parse(mode_id).ok_or_else(|| format!("unknown mode_id: {mode_id}"))?;
let session = self
.session_handle(session_id)
.ok_or_else(|| "unknown session".to_string())?;
let _ = self
.apply_session_mode(session_id, &session, mode)
.await
.map_err(|e| format!("Failed to apply mode update: {e}"))?;
let payload = json!({
TOOL_RESPONSE_KEY_STATUS: TOOL_SUCCESS_LABEL,
TOOL_RESPONSE_KEY_TOOL: "switch_mode",
"result": {
"mode_id": mode_id,
}
});
Ok(ToolExecutionReport::success(
vec![acp::ToolCallContent::from(format!(
"Successfully switched to mode: {mode_id}"
))],
Vec::new(),
payload,
))
}
}
fn should_route_terminal_via_client(tool_name: &str, args: &Value) -> bool {
match tool_name {
tools::RUN_PTY_CMD => true,
tools::UNIFIED_EXEC => tool_intent::unified_exec_action(args)
.map(|action| action.eq_ignore_ascii_case("run"))
.unwrap_or(false),
_ => false,
}
}