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