#![forbid(unsafe_code)]
use kcode_k1_access_kmap::K1AccessKmap;
use kcode_k1_chat_persistence::Session;
pub use kcode_k1_chat_state::BoxId;
use kcode_k1_chat_state::{AGENT_MESSAGE_TYPE, AGENT_RESPONSE_TYPE, USER_MESSAGE_TYPE};
pub use kcode_k1_chat_thread_durable_turn::{
BoxValue, ChatBox, ChatDiagnostic, EventRecord, ModelUsage, PreflightItem, PreflightMode,
PreparedCall, PreparedMailboxFlush, PreparedPreflightCall, Status, TokenBreakdown, ToolCallId,
};
use kcode_k1_chat_thread_durable_turn::{DurableTurn, RestartError, ShimOutput};
pub use kcode_k1_chat_thread_ktools::{AccessContext, AccessPolicy, ProfileId, SetLaunchNodeKtool};
use kcode_k1_chat_thread_ktools::{ChatThreadKtoolExecutor, ChatThreadKtools};
use serde::Deserialize;
use std::sync::Arc;
#[derive(Clone, Debug, Eq, PartialEq)]
pub enum TransitionError {
Unauthorized,
NotStalled,
NotRestartable,
Internal(String),
}
pub struct DurableThread {
turn: DurableTurn,
ktools: ChatThreadKtoolExecutor,
authorized: bool,
}
impl DurableThread {
pub fn recover(session: Session, kmap: Arc<K1AccessKmap>) -> Result<Self, String> {
Self::recover_with_ktools(session, ChatThreadKtools::new(kmap))
}
pub fn recover_with_social(
session: Session,
kmap: Arc<K1AccessKmap>,
social: kcode_k1_ktool_social::SocialKtools,
) -> Result<Self, String> {
Self::recover_with_ktools(session, ChatThreadKtools::new_with_social(kmap, social))
}
pub fn recover_with_social_and_set_launch_node(
session: Session,
kmap: Arc<K1AccessKmap>,
social: kcode_k1_ktool_social::SocialKtools,
set_launch_node: SetLaunchNodeKtool,
) -> Result<Self, String> {
Self::recover_with_ktools(
session,
ChatThreadKtools::new_with_social_and_set_launch_node(kmap, social, set_launch_node),
)
}
pub fn boxes(&self) -> &[ChatBox] {
self.turn.boxes()
}
pub fn events(&self) -> Vec<EventRecord> {
self.turn.events()
}
pub fn status(&self) -> Status {
self.turn.status()
}
pub fn preflight_calls(&self) -> &[PreparedPreflightCall] {
self.turn.preflight_calls()
}
pub fn preflight_executor(&self) -> ChatThreadKtoolExecutor {
self.ktools.clone()
}
pub fn prepare_preflight(
&mut self,
context: AccessContext,
profile_id: ProfileId,
policy: AccessPolicy,
items: Vec<PreflightItem>,
) -> Result<Vec<PreparedPreflightCall>, TransitionError> {
for item in &items {
if let PreflightItem::KtoolCall { name, .. } = item {
let supported = self
.ktools
.supports(name)
.map_err(TransitionError::Internal)?;
if !supported {
return Err(TransitionError::Internal(
"unsupported preflight Ktool".to_owned(),
));
}
}
}
let installed = self.bind_authorization(context, profile_id, policy)?;
match self.turn.prepare_preflight(items) {
Ok(calls) => Ok(calls),
Err(error) => {
if installed {
self.clear_authorization();
}
Err(TransitionError::Internal(error))
}
}
}
pub fn authorize_preflight(
&mut self,
context: AccessContext,
profile_id: ProfileId,
policy: AccessPolicy,
) -> Result<(), TransitionError> {
self.bind_authorization(context, profile_id, policy)
.map(|_| ())
}
pub fn accept_box(
&mut self,
box_type: String,
contents: String,
hidden_type: String,
hidden_contents: String,
) -> Result<(), String> {
self.turn
.accept(box_type, contents, hidden_type, hidden_contents)
}
pub fn accept_external_box(
&mut self,
box_type: String,
contents: String,
hidden_type: String,
hidden_contents: String,
) -> Result<(), TransitionError> {
if box_type == USER_MESSAGE_TYPE {
return Err(TransitionError::Unauthorized);
}
self.accept_box(box_type, contents, hidden_type, hidden_contents)
.map_err(TransitionError::Internal)
}
pub fn accept_user(
&mut self,
context: AccessContext,
profile_id: ProfileId,
policy: AccessPolicy,
contents: String,
) -> Result<(), TransitionError> {
let installed = self.bind_authorization(context, profile_id, policy)?;
match self.turn.accept(
USER_MESSAGE_TYPE.into(),
contents,
String::new(),
String::new(),
) {
Ok(()) => Ok(()),
Err(error) => {
if installed {
self.clear_authorization();
}
Err(TransitionError::Internal(error))
}
}
}
pub fn accept_return(
&mut self,
id: ToolCallId,
result: Result<String, String>,
) -> Result<(), String> {
self.turn.accept_tool_return(id, result)
}
pub fn prepare_stage(
&mut self,
job: u64,
text: String,
boxes: Vec<BoxValue>,
) -> Result<Vec<PreparedCall>, String> {
self.turn.prepare_stage(job, text, boxes)
}
pub fn launch_action(&mut self, name: &str, arguments: &str) -> Result<String, String> {
if !kcode_k1_ktool_docs::is_known_ktool(name) {
return Err("unknown Ktool".into());
}
match name {
"KtoolDocs" => kcode_k1_ktool_docs::ktool_docs(arguments),
"SendMessage" => launch_send_message(&mut self.turn, arguments),
_ => self.ktools.launch(name, arguments),
}
}
pub fn accept_tool_message(&mut self, id: ToolCallId, contents: String) -> Result<(), String> {
self.turn.accept_tool_message(id, contents)
}
pub fn accept_tool_return(
&mut self,
id: ToolCallId,
result: Result<String, String>,
) -> Result<(), String> {
self.turn.accept_tool_return(id, result)
}
pub fn accept_tool_return_v2(
&mut self,
id: ToolCallId,
result: Result<String, String>,
metadata_type: String,
metadata_contents: String,
) -> Result<(), String> {
self.turn
.accept_tool_return_v2(id, result, metadata_type, metadata_contents)
}
pub fn prepare_mailbox_flush(
&mut self,
job: u64,
) -> Result<Option<PreparedMailboxFlush>, String> {
self.turn.prepare_mailbox_flush(job)
}
pub fn prepared_input(&self, prepared: &PreparedMailboxFlush) -> Result<String, String> {
self.turn.validate_mailbox_flush(prepared)?;
render_input(prepared.values())
}
pub fn commit_mailbox_flush(&mut self, prepared: PreparedMailboxFlush) -> Result<(), String> {
self.turn.commit_mailbox_flush(prepared)
}
pub fn begin_input(&mut self) -> Result<Option<(u64, String)>, String> {
let Some(start) = self.turn.begin()? else {
return Ok(None);
};
Ok(Some((start.job, render_input(&start.values)?)))
}
pub fn complete(&mut self, job: u64, output: ShimOutput<BoxValue>) -> Result<bool, String> {
self.turn.complete(job, output)
}
pub fn complete_with_terminal_response(
&mut self,
job: u64,
output: ShimOutput<BoxValue>,
) -> Result<(bool, u64), String> {
let terminal_index = self.turn.boxes().len();
let resume = self.complete(job, output)?;
let terminal =
self.turn.boxes().get(terminal_index).ok_or_else(|| {
"completion did not append a terminal Agent Response box".to_owned()
})?;
if terminal.box_type() != AGENT_RESPONSE_TYPE {
return Err("completion terminal box was not an Agent Response".to_owned());
}
Ok((resume, terminal.id().get()))
}
pub fn complete_recoverable_failure_with_terminal_response(
&mut self,
job: u64,
message: String,
) -> Result<(bool, u64), String> {
let terminal_index = self.turn.boxes().len();
let resume = self.turn.complete_recoverable_failure(job, message)?;
let terminal = self.turn.boxes().get(terminal_index).ok_or_else(|| {
"recoverable failure did not append a terminal Agent Response box".to_owned()
})?;
if terminal.box_type() != AGENT_RESPONSE_TYPE {
return Err("recoverable failure terminal box was not an Agent Response".to_owned());
}
Ok((resume, terminal.id().get()))
}
pub fn reset_provider_context(&mut self) -> Result<(), String> {
self.turn.reset_provider_context()
}
pub fn record_diagnostic(&mut self, diagnostic: ChatDiagnostic) -> Result<(), String> {
self.turn.record_diagnostic(diagnostic)
}
pub fn halt_critical(&mut self, message: String) -> Result<(), String> {
let result = self.turn.halt_critical(message);
let _ = self.ktools.clear_authorization();
self.authorized = false;
result
}
pub fn record_model_usage(
&mut self,
connected_box_id: u64,
usage: ModelUsage,
) -> Result<(), String> {
self.turn.record_model_usage(connected_box_id, usage)
}
pub fn fail(&mut self, job: u64, error: String, restartable: bool) {
self.turn.fail(job, error, restartable);
self.clear_authorization();
}
pub fn restart(
&mut self,
context: AccessContext,
profile_id: ProfileId,
policy: AccessPolicy,
) -> Result<(), TransitionError> {
let installed = self.bind_authorization(context, profile_id, policy)?;
if let Err(error) = self.turn.restart().map_err(|error| match error {
RestartError::NotStalled => TransitionError::NotStalled,
RestartError::ProviderActionAccepted => TransitionError::NotRestartable,
}) {
if installed {
self.clear_authorization();
}
return Err(error);
}
Ok(())
}
pub fn clear_authorization(&mut self) {
if self.has_unresolved_preflight() {
return;
}
let _ = self.ktools.clear_authorization();
self.authorized = false;
}
fn has_unresolved_preflight(&self) -> bool {
self.turn.preflight_calls().iter().any(|call| {
!self.turn.boxes().iter().any(|value| {
value
.tool_result_metadata()
.ok()
.flatten()
.is_some_and(|result| result.tool_call_id == call.tool_call_id)
})
})
}
fn recover_with_ktools(session: Session, ktools: ChatThreadKtools) -> Result<Self, String> {
Ok(Self {
turn: DurableTurn::recover(session)?,
ktools: ChatThreadKtoolExecutor::new(ktools),
authorized: false,
})
}
fn bind_authorization(
&mut self,
context: AccessContext,
profile_id: ProfileId,
policy: AccessPolicy,
) -> Result<bool, TransitionError> {
let installed = !self.authorized;
if self
.ktools
.bind_authorization(context, profile_id, policy)
.is_err()
{
if installed {
let _ = self.ktools.clear_authorization();
}
return Err(TransitionError::Unauthorized);
}
self.authorized = true;
Ok(installed)
}
}
#[derive(Deserialize)]
#[serde(deny_unknown_fields)]
struct SendMessageArguments {
message: String,
}
fn launch_send_message(turn: &mut DurableTurn, arguments: &str) -> Result<String, String> {
let parsed: SendMessageArguments =
serde_json::from_str(arguments).map_err(|_| invalid_send_message())?;
if parsed.message.is_empty() {
return Err(invalid_send_message());
}
turn.accept(
AGENT_MESSAGE_TYPE.into(),
parsed.message,
String::new(),
String::new(),
)?;
Ok("success".into())
}
fn invalid_send_message() -> String {
"invalid SendMessage arguments".into()
}
fn render_input(values: &[BoxValue]) -> Result<String, String> {
let mut output = String::new();
for value in values {
let BoxValue::History(section) = value else {
return Err("Codex provider input contains a non-history value".into());
};
if section.is_empty() {
continue;
}
if !output.is_empty() && !output.ends_with('\n') {
output.push('\n');
}
output.push_str(section);
}
Ok(output)
}
#[cfg(test)]
mod tests;