// @effect-diagnostics nodeBuiltinImport:offimport fs from "node:fs";import os from "node:os";import path from "node:path"; import { ThreadId } from "@t3tools/contracts";import { assert, describe, it } from "@effect/vitest";import * as Effect from "effect/Effect"; import { makeEventNdjsonLogger } from "./EventNdjsonLogger.ts"; function parseLogLine(line: string) {  const match = /^\[([^\]]+)\] ([A-Z]+): (.+)$/.exec(line);  assert.notEqual(match, null);  if (!match) {    throw new Error(`invalid log line: ${line}`);  }  const observedAt = match[1];  const stream = match[2];  const payload = match[3];  if (!observedAt || !stream || payload === undefined) {    throw new Error(`invalid log line: ${line}`);  }  return {    observedAt,    stream,    payload,  };} describe("EventNdjsonLogger", () => {  it.effect("writes effect-style lines to thread-scoped files", () =>    Effect.gen(function* () {      const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), "t3-provider-log-"));      const basePath = path.join(tempDir, "provider-native.ndjson");       try {        const logger = yield* makeEventNdjsonLogger(basePath, { stream: "native" });        assert.notEqual(logger, undefined);        if (!logger) {          return;        }         yield* logger.write(          { threadId: "provider-thread-1", id: "evt-1" },          ThreadId.make("thread-1"),        );        yield* logger.write(          { type: "turn.completed", threadId: "provider-thread-2", id: "evt-2" },          ThreadId.make("thread-2"),        );        yield* logger.close();         const threadOnePath = path.join(tempDir, "thread-1.log");        const threadTwoPath = path.join(tempDir, "thread-2.log");        assert.equal(fs.existsSync(threadOnePath), true);        assert.equal(fs.existsSync(threadTwoPath), true);         const first = parseLogLine(fs.readFileSync(threadOnePath, "utf8").trim());        const second = parseLogLine(fs.readFileSync(threadTwoPath, "utf8").trim());         assert.equal(Number.isNaN(Date.parse(first.observedAt)), false);        assert.equal(first.stream, "NTIVE");        assert.equal(first.payload, '{"threadId":"provider-thread-1","id":"evt-1"}');         assert.equal(Number.isNaN(Date.parse(second.observedAt)), false);        assert.equal(second.stream, "NTIVE");        assert.equal(          second.payload,          '{"type":"turn.completed","threadId":"provider-thread-2","id":"evt-2"}',        );      } finally {        fs.rmSync(tempDir, { recursive: true, force: true });      }    }),  );   it.effect(    "falls back to a global segment when orchestration thread id is missing or invalid",    () =>      Effect.gen(function* () {        const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), "t3-provider-log-"));        const basePath = path.join(tempDir, "provider-canonical.ndjson");         try {          const logger = yield* makeEventNdjsonLogger(basePath, { stream: "orchestration" });          assert.notEqual(logger, undefined);          if (!logger) {            return;          }           yield* logger.write({ id: "evt-no-thread" }, null);          yield* logger.write({ id: "evt-invalid-thread" }, "!!!" as unknown as ThreadId);          yield* logger.close();           const globalPath = path.join(tempDir, "_global.log");          assert.equal(fs.existsSync(globalPath), true);          const lines = fs            .readFileSync(globalPath, "utf8")            .trim()            .split("\n")            .map((line) => parseLogLine(line));          assert.equal(lines.length, 2);          assert.equal(Number.isNaN(Date.parse(lines[0]?.observedAt ?? "")), false);          assert.equal(Number.isNaN(Date.parse(lines[1]?.observedAt ?? "")), false);          assert.equal(lines[0]?.stream, "CANON");          assert.equal(lines[0]?.payload, '{"id":"evt-no-thread"}');          assert.equal(lines[1]?.stream, "CANON");          assert.equal(lines[1]?.payload, '{"id":"evt-invalid-thread"}');        } finally {          fs.rmSync(tempDir, { recursive: true, force: true });        }      }),  );   it.effect("serializes concurrent first writes for the same segment", () =>    Effect.gen(function* () {      const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), "t3-provider-log-"));      const basePath = path.join(tempDir, "provider-canonical.ndjson");       try {        const logger = yield* makeEventNdjsonLogger(basePath, {          stream: "canonical",          batchWindowMs: 0,        });        assert.notEqual(logger, undefined);        if (!logger) {          return;        }         yield* Effect.all(          [            logger.write({ id: "evt-concurrent-1" }, null),            logger.write({ id: "evt-concurrent-2" }, null),          ],          { concurrency: "unbounded" },        );        yield* logger.close();         const globalPath = path.join(tempDir, "_global.log");        assert.equal(fs.existsSync(globalPath), true);        const lines = fs          .readFileSync(globalPath, "utf8")          .trim()          .split("\n")          .map((line) => parseLogLine(line));         assert.equal(lines.length, 2);        assert.deepEqual(lines.map((line) => line.payload).toSorted(), [          '{"id":"evt-concurrent-1"}',          '{"id":"evt-concurrent-2"}',        ]);      } finally {        fs.rmSync(tempDir, { recursive: true, force: true });      }    }),  );   it.effect("rotates per-thread files when max size is exceeded", () =>    Effect.gen(function* () {      const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), "t3-provider-log-"));      const basePath = path.join(tempDir, "provider-native.ndjson");       try {        const logger = yield* makeEventNdjsonLogger(basePath, {          stream: "native",          maxBytes: 120,          maxFiles: 2,        });        assert.notEqual(logger, undefined);        if (!logger) {          return;        }         for (let index = 0; index < 10; index += 1) {          yield* logger.write(            {              threadId: "provider-thread-rotate",              id: `evt-${index}`,              payload: "x".repeat(40),            },            ThreadId.make("thread-rotate"),          );        }        yield* logger.close();         const fileStem = "thread-rotate.log";        const matchingFiles = fs          .readdirSync(tempDir)          .filter((entry) => entry === fileStem || entry.startsWith(`${fileStem}.`))          .toSorted();         assert.equal(          matchingFiles.some((entry) => entry === `${fileStem}.1`),          true,        );        assert.equal(          matchingFiles.some((entry) => entry === fileStem || entry === `${fileStem}.2`),          true,        );        assert.equal(          matchingFiles.some((entry) => entry === `${fileStem}.3`),          false,        );      } finally {        fs.rmSync(tempDir, { recursive: true, force: true });      }    }),  );});