Files
llm_worker_rs/llm-worker/src/timeline/event.rs
T
2026-01-09 00:42:33 +09:00

449 lines
14 KiB
Rust

//! Timeline層のイベント型
//!
//! Timelineが受け取り、各Handlerへディスパッチするイベント表現。
use serde::{Deserialize, Serialize};
// =============================================================================
// Core Event Types (from llm_client layer)
// =============================================================================
/// LLMからのストリーミングイベント
///
/// 各LLMプロバイダからのレスポンスは、この`Event`のストリームとして
/// 統一的に処理されます。
///
/// # イベントの種類
///
/// - **メタイベント**: `Ping`, `Usage`, `Status`, `Error`
/// - **ブロックイベント**: `BlockStart`, `BlockDelta`, `BlockStop`, `BlockAbort`
///
/// # ブロックのライフサイクル
///
/// テキストやツール呼び出しは、`BlockStart` → `BlockDelta`(複数) → `BlockStop`
/// の順序でイベントが発生します。
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum Event {
/// ハートビート
Ping(PingEvent),
/// トークン使用量
Usage(UsageEvent),
/// ストリームのステータス変化
Status(StatusEvent),
/// エラー発生
Error(ErrorEvent),
/// ブロック開始(テキスト、ツール使用等)
BlockStart(BlockStart),
/// ブロックの差分データ
BlockDelta(BlockDelta),
/// ブロック正常終了
BlockStop(BlockStop),
/// ブロック中断
BlockAbort(BlockAbort),
}
// =============================================================================
// Meta Events
// =============================================================================
/// Pingイベント(ハートビート)
#[derive(Debug, Clone, PartialEq, Default, Serialize, Deserialize)]
pub struct PingEvent {
pub timestamp: Option<u64>,
}
/// 使用量イベント
#[derive(Debug, Clone, PartialEq, Default, Serialize, Deserialize)]
pub struct UsageEvent {
/// 入力トークン数
pub input_tokens: Option<u64>,
/// 出力トークン数
pub output_tokens: Option<u64>,
/// 合計トークン数
pub total_tokens: Option<u64>,
/// キャッシュ読み込みトークン数
pub cache_read_input_tokens: Option<u64>,
/// キャッシュ作成トークン数
pub cache_creation_input_tokens: Option<u64>,
}
/// ステータスイベント
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct StatusEvent {
pub status: ResponseStatus,
}
/// レスポンスステータス
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum ResponseStatus {
/// ストリーム開始
Started,
/// 正常完了
Completed,
/// キャンセルされた
Cancelled,
/// エラー発生
Failed,
}
/// エラーイベント
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct ErrorEvent {
pub code: Option<String>,
pub message: String,
}
// =============================================================================
// Block Types
// =============================================================================
/// ブロックの種別
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]
pub enum BlockType {
/// テキスト生成
Text,
/// 思考 (Claude Extended Thinking等)
Thinking,
/// ツール呼び出し
ToolUse,
/// ツール結果
ToolResult,
}
/// ブロック開始イベント
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct BlockStart {
/// ブロックのインデックス
pub index: usize,
/// ブロックの種別
pub block_type: BlockType,
/// ブロック固有のメタデータ
pub metadata: BlockMetadata,
}
impl BlockStart {
pub fn block_type(&self) -> BlockType {
self.block_type
}
}
/// ブロックのメタデータ
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum BlockMetadata {
Text,
Thinking,
ToolUse { id: String, name: String },
ToolResult { tool_use_id: String },
}
/// ブロックデルタイベント
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct BlockDelta {
/// ブロックのインデックス
pub index: usize,
/// デルタの内容
pub delta: DeltaContent,
}
/// デルタの内容
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum DeltaContent {
/// テキストデルタ
Text(String),
/// 思考デルタ
Thinking(String),
/// ツール引数のJSON部分文字列
InputJson(String),
}
impl DeltaContent {
/// デルタのブロック種別を取得
pub fn block_type(&self) -> BlockType {
match self {
DeltaContent::Text(_) => BlockType::Text,
DeltaContent::Thinking(_) => BlockType::Thinking,
DeltaContent::InputJson(_) => BlockType::ToolUse,
}
}
}
/// ブロック停止イベント
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct BlockStop {
/// ブロックのインデックス
pub index: usize,
/// ブロックの種別
pub block_type: BlockType,
/// 停止理由
pub stop_reason: Option<StopReason>,
}
impl BlockStop {
pub fn block_type(&self) -> BlockType {
self.block_type
}
}
/// ブロック中断イベント
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct BlockAbort {
/// ブロックのインデックス
pub index: usize,
/// ブロックの種別
pub block_type: BlockType,
/// 中断理由
pub reason: String,
}
impl BlockAbort {
pub fn block_type(&self) -> BlockType {
self.block_type
}
}
/// 停止理由
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum StopReason {
/// 自然終了
EndTurn,
/// 最大トークン数到達
MaxTokens,
/// ストップシーケンス到達
StopSequence,
/// ツール使用
ToolUse,
}
// =============================================================================
// Builder / Factory helpers
// =============================================================================
impl Event {
/// テキストブロック開始イベントを作成
pub fn text_block_start(index: usize) -> Self {
Event::BlockStart(BlockStart {
index,
block_type: BlockType::Text,
metadata: BlockMetadata::Text,
})
}
/// テキストデルタイベントを作成
pub fn text_delta(index: usize, text: impl Into<String>) -> Self {
Event::BlockDelta(BlockDelta {
index,
delta: DeltaContent::Text(text.into()),
})
}
/// テキストブロック停止イベントを作成
pub fn text_block_stop(index: usize, stop_reason: Option<StopReason>) -> Self {
Event::BlockStop(BlockStop {
index,
block_type: BlockType::Text,
stop_reason,
})
}
/// ツール使用ブロック開始イベントを作成
pub fn tool_use_start(index: usize, id: impl Into<String>, name: impl Into<String>) -> Self {
Event::BlockStart(BlockStart {
index,
block_type: BlockType::ToolUse,
metadata: BlockMetadata::ToolUse {
id: id.into(),
name: name.into(),
},
})
}
/// ツール引数デルタイベントを作成
pub fn tool_input_delta(index: usize, json: impl Into<String>) -> Self {
Event::BlockDelta(BlockDelta {
index,
delta: DeltaContent::InputJson(json.into()),
})
}
/// ツール使用ブロック停止イベントを作成
pub fn tool_use_stop(index: usize) -> Self {
Event::BlockStop(BlockStop {
index,
block_type: BlockType::ToolUse,
stop_reason: Some(StopReason::ToolUse),
})
}
/// 使用量イベントを作成
pub fn usage(input_tokens: u64, output_tokens: u64) -> Self {
Event::Usage(UsageEvent {
input_tokens: Some(input_tokens),
output_tokens: Some(output_tokens),
total_tokens: Some(input_tokens + output_tokens),
cache_read_input_tokens: None,
cache_creation_input_tokens: None,
})
}
/// Pingイベントを作成
pub fn ping() -> Self {
Event::Ping(PingEvent { timestamp: None })
}
}
// =============================================================================
// Conversions: llm_client::event -> timeline::event
// =============================================================================
impl From<crate::llm_client::event::ResponseStatus> for ResponseStatus {
fn from(value: crate::llm_client::event::ResponseStatus) -> Self {
match value {
crate::llm_client::event::ResponseStatus::Started => ResponseStatus::Started,
crate::llm_client::event::ResponseStatus::Completed => ResponseStatus::Completed,
crate::llm_client::event::ResponseStatus::Cancelled => ResponseStatus::Cancelled,
crate::llm_client::event::ResponseStatus::Failed => ResponseStatus::Failed,
}
}
}
impl From<crate::llm_client::event::BlockType> for BlockType {
fn from(value: crate::llm_client::event::BlockType) -> Self {
match value {
crate::llm_client::event::BlockType::Text => BlockType::Text,
crate::llm_client::event::BlockType::Thinking => BlockType::Thinking,
crate::llm_client::event::BlockType::ToolUse => BlockType::ToolUse,
crate::llm_client::event::BlockType::ToolResult => BlockType::ToolResult,
}
}
}
impl From<crate::llm_client::event::BlockMetadata> for BlockMetadata {
fn from(value: crate::llm_client::event::BlockMetadata) -> Self {
match value {
crate::llm_client::event::BlockMetadata::Text => BlockMetadata::Text,
crate::llm_client::event::BlockMetadata::Thinking => BlockMetadata::Thinking,
crate::llm_client::event::BlockMetadata::ToolUse { id, name } => {
BlockMetadata::ToolUse { id, name }
}
crate::llm_client::event::BlockMetadata::ToolResult { tool_use_id } => {
BlockMetadata::ToolResult { tool_use_id }
}
}
}
}
impl From<crate::llm_client::event::DeltaContent> for DeltaContent {
fn from(value: crate::llm_client::event::DeltaContent) -> Self {
match value {
crate::llm_client::event::DeltaContent::Text(text) => DeltaContent::Text(text),
crate::llm_client::event::DeltaContent::Thinking(text) => DeltaContent::Thinking(text),
crate::llm_client::event::DeltaContent::InputJson(json) => {
DeltaContent::InputJson(json)
}
}
}
}
impl From<crate::llm_client::event::StopReason> for StopReason {
fn from(value: crate::llm_client::event::StopReason) -> Self {
match value {
crate::llm_client::event::StopReason::EndTurn => StopReason::EndTurn,
crate::llm_client::event::StopReason::MaxTokens => StopReason::MaxTokens,
crate::llm_client::event::StopReason::StopSequence => StopReason::StopSequence,
crate::llm_client::event::StopReason::ToolUse => StopReason::ToolUse,
}
}
}
impl From<crate::llm_client::event::PingEvent> for PingEvent {
fn from(value: crate::llm_client::event::PingEvent) -> Self {
PingEvent {
timestamp: value.timestamp,
}
}
}
impl From<crate::llm_client::event::UsageEvent> for UsageEvent {
fn from(value: crate::llm_client::event::UsageEvent) -> Self {
UsageEvent {
input_tokens: value.input_tokens,
output_tokens: value.output_tokens,
total_tokens: value.total_tokens,
cache_read_input_tokens: value.cache_read_input_tokens,
cache_creation_input_tokens: value.cache_creation_input_tokens,
}
}
}
impl From<crate::llm_client::event::StatusEvent> for StatusEvent {
fn from(value: crate::llm_client::event::StatusEvent) -> Self {
StatusEvent {
status: value.status.into(),
}
}
}
impl From<crate::llm_client::event::ErrorEvent> for ErrorEvent {
fn from(value: crate::llm_client::event::ErrorEvent) -> Self {
ErrorEvent {
code: value.code,
message: value.message,
}
}
}
impl From<crate::llm_client::event::BlockStart> for BlockStart {
fn from(value: crate::llm_client::event::BlockStart) -> Self {
BlockStart {
index: value.index,
block_type: value.block_type.into(),
metadata: value.metadata.into(),
}
}
}
impl From<crate::llm_client::event::BlockDelta> for BlockDelta {
fn from(value: crate::llm_client::event::BlockDelta) -> Self {
BlockDelta {
index: value.index,
delta: value.delta.into(),
}
}
}
impl From<crate::llm_client::event::BlockStop> for BlockStop {
fn from(value: crate::llm_client::event::BlockStop) -> Self {
BlockStop {
index: value.index,
block_type: value.block_type.into(),
stop_reason: value.stop_reason.map(Into::into),
}
}
}
impl From<crate::llm_client::event::BlockAbort> for BlockAbort {
fn from(value: crate::llm_client::event::BlockAbort) -> Self {
BlockAbort {
index: value.index,
block_type: value.block_type.into(),
reason: value.reason,
}
}
}
impl From<crate::llm_client::event::Event> for Event {
fn from(value: crate::llm_client::event::Event) -> Self {
match value {
crate::llm_client::event::Event::Ping(p) => Event::Ping(p.into()),
crate::llm_client::event::Event::Usage(u) => Event::Usage(u.into()),
crate::llm_client::event::Event::Status(s) => Event::Status(s.into()),
crate::llm_client::event::Event::Error(e) => Event::Error(e.into()),
crate::llm_client::event::Event::BlockStart(s) => Event::BlockStart(s.into()),
crate::llm_client::event::Event::BlockDelta(d) => Event::BlockDelta(d.into()),
crate::llm_client::event::Event::BlockStop(s) => Event::BlockStop(s.into()),
crate::llm_client::event::Event::BlockAbort(a) => Event::BlockAbort(a.into()),
}
}
}