252 lines
8.0 KiB
JavaScript
252 lines
8.0 KiB
JavaScript
// ============================================================================
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// atom-extraction.js - 30并发 + 首批错开 + 取消支持 + 进度回调
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// ============================================================================
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import { callLLM, parseJson } from './llm-service.js';
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import { xbLog } from '../../../../core/debug-core.js';
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import { filterText } from '../utils/text-filter.js';
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const MODULE_ID = 'atom-extraction';
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const CONCURRENCY = 10;
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const RETRY_COUNT = 2;
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const RETRY_DELAY = 500;
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const DEFAULT_TIMEOUT = 20000;
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const STAGGER_DELAY = 80; // 首批错开延迟（ms）
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let batchCancelled = false;
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export function cancelBatchExtraction() {
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batchCancelled = true;
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}
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export function isBatchCancelled() {
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return batchCancelled;
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}
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const SYSTEM_PROMPT = `你是叙事锚点提取器。从一轮对话（用户发言+角色回复）中提取4-8个关键锚点。
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只输出JSON：
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{"atoms":[{"t":"类型","s":"主体","v":"值","f":"来源"}]}
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类型（t）：
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- emo: 情绪状态（需要s主体）
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- loc: 地点/场景
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- act: 关键动作（需要s主体）
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- rev: 揭示/发现
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- ten: 冲突/张力
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- dec: 决定/承诺
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规则：
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- s: 主体（谁）
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- v: 简洁值，10字内
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- f: "u"=用户发言中, "a"=角色回复中
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- 只提取对未来检索有价值的锚点
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- 无明显锚点返回空数组`;
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function buildSemantic(atom, userName, aiName) {
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const speaker = atom.f === 'u' ? userName : aiName;
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const s = atom.s || speaker;
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switch (atom.t) {
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case 'emo': return `${s}感到${atom.v}`;
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case 'loc': return `场景：${atom.v}`;
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case 'act': return `${s}${atom.v}`;
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case 'rev': return `揭示：${atom.v}`;
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case 'ten': return `冲突：${atom.v}`;
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case 'dec': return `${s}决定${atom.v}`;
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default: return `${s} ${atom.v}`;
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}
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}
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const sleep = (ms) => new Promise(r => setTimeout(r, ms));
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async function extractAtomsForRoundWithRetry(userMessage, aiMessage, aiFloor, options = {}) {
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const { timeout = DEFAULT_TIMEOUT } = options;
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if (!aiMessage?.mes?.trim()) return [];
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const parts = [];
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const userName = userMessage?.name || '用户';
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const aiName = aiMessage.name || '角色';
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if (userMessage?.mes?.trim()) {
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const userText = filterText(userMessage.mes);
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parts.push(`【用户：${userName}】\n${userText}`);
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}
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const aiText = filterText(aiMessage.mes);
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parts.push(`【角色：${aiName}】\n${aiText}`);
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const input = parts.join('\n\n---\n\n');
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xbLog.info(MODULE_ID, `floor ${aiFloor} 发送输入 len=${input.length}`);
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for (let attempt = 0; attempt <= RETRY_COUNT; attempt++) {
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if (batchCancelled) return [];
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try {
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const response = await callLLM([
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{ role: 'system', content: SYSTEM_PROMPT },
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{ role: 'user', content: input },
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], {
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temperature: 0.2,
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max_tokens: 500,
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timeout,
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});
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if (!response || !String(response).trim()) {
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xbLog.warn(MODULE_ID, `floor ${aiFloor} 解析失败：响应为空`);
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if (attempt < RETRY_COUNT) {
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await sleep(RETRY_DELAY);
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continue;
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}
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return [];
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}
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let parsed;
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try {
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parsed = parseJson(response);
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} catch (e) {
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xbLog.warn(MODULE_ID, `floor ${aiFloor} 解析失败：JSON 异常`);
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if (attempt < RETRY_COUNT) {
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await sleep(RETRY_DELAY);
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continue;
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}
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return [];
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}
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if (!parsed?.atoms || !Array.isArray(parsed.atoms)) {
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xbLog.warn(MODULE_ID, `floor ${aiFloor} 解析失败：atoms 缺失`);
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if (attempt < RETRY_COUNT) {
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await sleep(RETRY_DELAY);
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continue;
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}
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return [];
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}
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return parsed.atoms
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.filter(a => a?.t && a?.v)
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.map((a, idx) => ({
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atomId: `atom-${aiFloor}-${idx}`,
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floor: aiFloor,
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type: a.t,
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subject: a.s || null,
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value: String(a.v).slice(0, 30),
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source: a.f === 'u' ? 'user' : 'ai',
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semantic: buildSemantic(a, userName, aiName),
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}));
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} catch (e) {
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if (batchCancelled) return [];
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if (attempt < RETRY_COUNT) {
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xbLog.warn(MODULE_ID, `floor ${aiFloor} 第${attempt + 1}次失败，重试...`, e?.message);
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await sleep(RETRY_DELAY * (attempt + 1));
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continue;
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}
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xbLog.error(MODULE_ID, `floor ${aiFloor} 失败`, e);
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return [];
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}
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}
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return [];
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}
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/**
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* 单轮配对提取（增量时使用）
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*/
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export async function extractAtomsForRound(userMessage, aiMessage, aiFloor, options = {}) {
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return extractAtomsForRoundWithRetry(userMessage, aiMessage, aiFloor, options);
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}
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/**
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* 批量提取（首批 staggered 启动）
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* @param {Array} chat
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* @param {Function} onProgress - (current, total, failed) => void
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*/
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export async function batchExtractAtoms(chat, onProgress) {
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if (!chat?.length) return [];
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batchCancelled = false;
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const pairs = [];
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for (let i = 0; i < chat.length; i++) {
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if (!chat[i].is_user) {
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const userMsg = (i > 0 && chat[i - 1]?.is_user) ? chat[i - 1] : null;
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pairs.push({ userMsg, aiMsg: chat[i], aiFloor: i });
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}
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}
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if (!pairs.length) return [];
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const allAtoms = [];
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let completed = 0;
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let failed = 0;
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for (let i = 0; i < pairs.length; i += CONCURRENCY) {
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if (batchCancelled) {
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xbLog.info(MODULE_ID, `批量提取已取消 (${completed}/${pairs.length})`);
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break;
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}
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const batch = pairs.slice(i, i + CONCURRENCY);
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// ★ 首批 staggered 启动：错开 80ms 发送
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if (i === 0) {
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const promises = batch.map((pair, idx) => (async () => {
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await sleep(idx * STAGGER_DELAY);
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if (batchCancelled) return;
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try {
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const atoms = await extractAtomsForRoundWithRetry(pair.userMsg, pair.aiMsg, pair.aiFloor, { timeout: DEFAULT_TIMEOUT });
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if (atoms?.length) {
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allAtoms.push(...atoms);
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} else {
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failed++;
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}
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} catch {
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failed++;
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}
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completed++;
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onProgress?.(completed, pairs.length, failed);
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})());
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await Promise.all(promises);
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} else {
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// 后续批次正常并行
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const promises = batch.map(pair =>
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extractAtomsForRoundWithRetry(pair.userMsg, pair.aiMsg, pair.aiFloor, { timeout: DEFAULT_TIMEOUT })
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.then(atoms => {
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if (batchCancelled) return;
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if (atoms?.length) {
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allAtoms.push(...atoms);
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} else {
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failed++;
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}
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completed++;
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onProgress?.(completed, pairs.length, failed);
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})
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.catch(() => {
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if (batchCancelled) return;
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failed++;
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completed++;
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onProgress?.(completed, pairs.length, failed);
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})
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);
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await Promise.all(promises);
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}
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// 批次间隔
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if (i + CONCURRENCY < pairs.length && !batchCancelled) {
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await sleep(30);
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}
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}
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const status = batchCancelled ? '已取消' : '完成';
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xbLog.info(MODULE_ID, `批量提取${status}: ${allAtoms.length} atoms, ${completed}/${pairs.length}, ${failed} 失败`);
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return allAtoms;
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}
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