Files
clawdbot/src/gateway/session-utils.fs.ts
2026-01-14 01:17:56 +00:00

88 lines
2.3 KiB
TypeScript

import fs from "node:fs";
import os from "node:os";
import path from "node:path";
import { resolveSessionTranscriptPath } from "../config/sessions.js";
export function readSessionMessages(
sessionId: string,
storePath: string | undefined,
sessionFile?: string,
): unknown[] {
const candidates = resolveSessionTranscriptCandidates(
sessionId,
storePath,
sessionFile,
);
const filePath = candidates.find((p) => fs.existsSync(p));
if (!filePath) return [];
const lines = fs.readFileSync(filePath, "utf-8").split(/\r?\n/);
const messages: unknown[] = [];
for (const line of lines) {
if (!line.trim()) continue;
try {
const parsed = JSON.parse(line);
if (parsed?.message) {
messages.push(parsed.message);
}
} catch {
// ignore bad lines
}
}
return messages;
}
export function resolveSessionTranscriptCandidates(
sessionId: string,
storePath: string | undefined,
sessionFile?: string,
agentId?: string,
): string[] {
const candidates: string[] = [];
if (sessionFile) candidates.push(sessionFile);
if (storePath) {
const dir = path.dirname(storePath);
candidates.push(path.join(dir, `${sessionId}.jsonl`));
}
if (agentId) {
candidates.push(resolveSessionTranscriptPath(sessionId, agentId));
}
candidates.push(
path.join(os.homedir(), ".clawdbot", "sessions", `${sessionId}.jsonl`),
);
return candidates;
}
export function archiveFileOnDisk(filePath: string, reason: string): string {
const ts = new Date().toISOString().replaceAll(":", "-");
const archived = `${filePath}.${reason}.${ts}`;
fs.renameSync(filePath, archived);
return archived;
}
function jsonUtf8Bytes(value: unknown): number {
try {
return Buffer.byteLength(JSON.stringify(value), "utf8");
} catch {
return Buffer.byteLength(String(value), "utf8");
}
}
export function capArrayByJsonBytes<T>(
items: T[],
maxBytes: number,
): { items: T[]; bytes: number } {
if (items.length === 0) return { items, bytes: 2 };
const parts = items.map((item) => jsonUtf8Bytes(item));
let bytes = 2 + parts.reduce((a, b) => a + b, 0) + (items.length - 1);
let start = 0;
while (bytes > maxBytes && start < items.length - 1) {
bytes -= parts[start] + 1;
start += 1;
}
const next = start > 0 ? items.slice(start) : items;
return { items: next, bytes };
}