import { readFile, rm, mkdtemp } from "node:fs/promises";
import { tmpdir } from "node:os";
import { join } from "node:path";
import { afterEach, beforeEach, describe, expect, it } from "vitest";
import { appLogFilePath, clearAppLogs, listAppLogs, recordAppLog } from "@/lib/server/log-manager";

let runtimeDir = "";
let previousRuntimeDir: string | undefined;
let previousLogDir: string | undefined;

describe("server log manager", () => {
  beforeEach(async () => {
    runtimeDir = await mkdtemp(join(tmpdir(), "zhinian-logs-"));
    previousRuntimeDir = process.env.ZHINIAN_RUNTIME_DIR;
    previousLogDir = process.env.ZHINIAN_LOG_DIR;
    process.env.ZHINIAN_RUNTIME_DIR = runtimeDir;
    delete process.env.ZHINIAN_LOG_DIR;
  });

  afterEach(async () => {
    restoreEnv("ZHINIAN_RUNTIME_DIR", previousRuntimeDir);
    restoreEnv("ZHINIAN_LOG_DIR", previousLogDir);
    await rm(runtimeDir, { force: true, recursive: true });
  });

  it("records, filters, and clears server logs", async () => {
    await recordAppLog({
      level: "error",
      source: "api.test",
      message: "EvoLink API_KEY=super-secret failed",
      error: new Error("token=abc123 failed"),
      status: 500,
      request: new Request("http://local.test/api/test?x=1", { method: "POST" }),
      details: {
        Authorization: "Bearer secret-token",
        nested: { password: "123456", prompt: "商品海报" }
      }
    });
    await recordAppLog({
      level: "warning",
      source: "worker.test",
      message: "retry scheduled"
    });

    const errors = await listAppLogs({ level: "error", q: "evolink" });
    expect(errors).toHaveLength(1);
    expect(errors[0]).toMatchObject({
      level: "error",
      source: "api.test",
      status: 500,
      method: "POST",
      path: "/api/test?x=1"
    });
    expect(JSON.stringify(errors[0])).not.toContain("super-secret");
    expect(JSON.stringify(errors[0])).not.toContain("secret-token");
    expect(JSON.stringify(errors[0])).not.toContain("123456");

    const raw = await readFile(appLogFilePath(), "utf8");
    expect(raw).toContain("retry scheduled");

    await clearAppLogs();
    expect(await listAppLogs()).toHaveLength(0);
  });
});

function restoreEnv(name: string, value: string | undefined) {
  if (value === undefined) {
    delete process.env[name];
    return;
  }
  process.env[name] = value;
}