DiAL/tests/server/checker/store.test.ts

import { afterAll, beforeAll, describe, expect, test } from "bun:test";
import { ProbeStore } from "../../../src/server/checker/store";
import type { CheckFailure, ResolvedTarget } from "../../../src/server/checker/types";
import { mkdir, rm } from "node:fs/promises";
import { join } from "node:path";
import { tmpdir } from "node:os";

const httpTarget: ResolvedTarget = {
  type: "http",
  name: "test-http",
  http: {
    url: "https://example.com/health",
    method: "GET",
    headers: { Accept: "application/json" },
    maxBodyBytes: 104857600,
  },
  intervalMs: 30000,
  timeoutMs: 10000,
  expect: { status: [200], maxDurationMs: 3000 },
};

const commandTarget: ResolvedTarget = {
  type: "command",
  name: "test-cmd",
  command: {
    exec: "ping",
    args: ["-c", "1", "localhost"],
    cwd: "/tmp",
    env: {},
    maxOutputBytes: 104857600,
  },
  intervalMs: 60000,
  timeoutMs: 5000,
};

describe("ProbeStore", () => {
  let tempDir: string;
  let store: ProbeStore;

  beforeAll(async () => {
    tempDir = join(tmpdir(), `gc-store-test-${Date.now()}`);
    await mkdir(tempDir, { recursive: true });
    store = new ProbeStore(join(tempDir, "test.db"));
  });

  afterAll(async () => {
    store.close();
    await rm(tempDir, { recursive: true, force: true });
  });

  test("初始化后无 targets", () => {
    expect(store.getTargets()).toHaveLength(0);
  });

  test("同步 http 和 command targets", () => {
    store.syncTargets([httpTarget, commandTarget]);
    const targets = store.getTargets();
    expect(targets).toHaveLength(2);
    expect(targets[0]!.name).toBe("test-http");
    expect(targets[1]!.name).toBe("test-cmd");
  });

  test("http target 字段正确", () => {
    const t = store.getTargets().find((t) => t.name === "test-http")!;
    expect(t.type).toBe("http");
    expect(t.target).toBe("https://example.com/health");
    const config = JSON.parse(t.config);
    expect(config.url).toBe("https://example.com/health");
    expect(config.method).toBe("GET");
    expect(config.headers).toEqual({ Accept: "application/json" });
    expect(config.maxBodyBytes).toBe(104857600);
    expect(t.interval_ms).toBe(30000);
    expect(t.timeout_ms).toBe(10000);
    expect(JSON.parse(t.expect!)).toEqual({ status: [200], maxDurationMs: 3000 });
  });

  test("command target 字段正确", () => {
    const t = store.getTargets().find((t) => t.name === "test-cmd")!;
    expect(t.type).toBe("command");
    expect(t.target).toBe("exec ping -c 1 localhost");
    const config = JSON.parse(t.config);
    expect(config.exec).toBe("ping");
    expect(config.args).toEqual(["-c", "1", "localhost"]);
    expect(config.cwd).toBe("/tmp");
    expect(config.maxOutputBytes).toBe(104857600);
    expect(t.interval_ms).toBe(60000);
    expect(t.timeout_ms).toBe(5000);
    expect(t.expect).toBeNull();
  });

  test("同步更新已有 target", () => {
    const updated: ResolvedTarget = {
      ...httpTarget,
      http: { ...httpTarget.http, url: "https://example.com/v2" },
    };
    store.syncTargets([updated, commandTarget]);
    const t = store.getTargets().find((t) => t.name === "test-http")!;
    expect(t.target).toBe("https://example.com/v2");
    expect(store.getTargets()).toHaveLength(2);
  });

  test("同步删除 target", () => {
    store.syncTargets([httpTarget]);
    const targets = store.getTargets();
    expect(targets).toHaveLength(1);
    expect(targets[0]!.name).toBe("test-http");
  });

  test("重新同步回来", () => {
    store.syncTargets([httpTarget, commandTarget]);
    expect(store.getTargets()).toHaveLength(2);
  });

  test("getTargetById", () => {
    const targets = store.getTargets();
    const found = store.getTargetById(targets[0]!.id);
    expect(found).toBeDefined();
    expect(found!.name).toBe("test-http");
  });

  test("getTargetById 不存在", () => {
    expect(store.getTargetById(99999)).toBeNull();
  });

  test("写入 check result 并查询", () => {
    store.syncTargets([httpTarget, commandTarget]);
    const targets = store.getTargets();
    const t1Id = targets[0]!.id;

    store.insertCheckResult({
      targetId: t1Id,
      timestamp: "2025-01-01T00:00:00.000Z",
      success: true,
      matched: true,
      durationMs: 150.5,
      statusDetail: "200 OK",
      failure: null,
    });

    store.insertCheckResult({
      targetId: t1Id,
      timestamp: "2025-01-01T00:00:30.000Z",
      success: true,
      matched: true,
      durationMs: 300,
      statusDetail: "200 OK",
      failure: null,
    });

    const failure: CheckFailure = {
      kind: "error",
      phase: "duration",
      path: "$.maxDurationMs",
      expected: 3000,
      actual: 5000,
      message: "请求耗时 5000ms 超过限制 3000ms",
    };

    store.insertCheckResult({
      targetId: t1Id,
      timestamp: "2025-01-01T00:01:00.000Z",
      success: false,
      matched: false,
      durationMs: null,
      statusDetail: null,
      failure,
    });

    const history = store.getHistory(t1Id, 10);
    expect(history).toHaveLength(3);
    expect(history[0]!.timestamp).toBe("2025-01-01T00:01:00.000Z");

    const latest = store.getLatestCheck(t1Id)!;
    expect(latest.success).toBe(0);
    expect(latest.failure).not.toBeNull();
    const parsedFailure = JSON.parse(latest.failure!) as CheckFailure;
    expect(parsedFailure.kind).toBe("error");
    expect(parsedFailure.phase).toBe("duration");
    expect(parsedFailure.message).toBe("请求耗时 5000ms 超过限制 3000ms");
  });

  test("getHistory 默认 limit=20", () => {
    const targets = store.getTargets();
    const t1Id = targets[0]!.id;

    for (let i = 0; i < 25; i++) {
      store.insertCheckResult({
        targetId: t1Id,
        timestamp: `2025-01-01T01:${String(i).padStart(2, "0")}:00.000Z`,
        success: true,
        matched: true,
        durationMs: 100 + i,
        statusDetail: "200 OK",
        failure: null,
      });
    }

    const history = store.getHistory(t1Id);
    expect(history).toHaveLength(20);
  });

  test("getTargetStats 计算可用率和 duration", () => {
    const targets = store.getTargets();
    const t1Id = targets[0]!.id;

    const stats = store.getTargetStats(t1Id);
    expect(stats.totalChecks).toBeGreaterThan(0);
    expect(stats.availability).toBeGreaterThanOrEqual(0);
    expect(stats.availability).toBeLessThanOrEqual(100);
    expect(stats.avgDurationMs).not.toBeNull();
    expect(typeof stats.avgDurationMs).toBe("number");
  });

  test("无记录目标的 stats", () => {
    const targets = store.getTargets();
    const t2Id = targets.find((t) => t.name === "test-cmd")!.id;

    const stats = store.getTargetStats(t2Id);
    expect(stats.totalChecks).toBe(0);
    expect(stats.availability).toBe(0);
    expect(stats.avgDurationMs).toBeNull();
    expect(stats.p99DurationMs).toBeNull();
  });

  test("getSummary 返回总览统计", () => {
    const summary = store.getSummary();
    expect(summary.total).toBe(2);
    expect(summary.up + summary.down).toBe(2);
    expect(summary.lastCheckTime).not.toBeNull();
    expect(summary.avgDurationMs).not.toBeNull();
  });

  test("getTrend 返回趋势数据", () => {
    const targets = store.getTargets();
    const t1Id = targets[0]!.id;

    const trend = store.getTrend(t1Id, 24);
    expect(Array.isArray(trend)).toBe(true);
    if (trend.length > 0) {
      expect(trend[0]!.hour).toBeDefined();
      expect(trend[0]!.avgDurationMs).toBeDefined();
      expect(trend[0]!.availability).toBeGreaterThanOrEqual(0);
      expect(trend[0]!.totalChecks).toBeGreaterThan(0);
    }
  });

  test("getSparkline 返回 duration 数组", () => {
    const targets = store.getTargets();
    const t1Id = targets[0]!.id;

    const sparkline = store.getSparkline(t1Id);
    expect(Array.isArray(sparkline)).toBe(true);
    expect(sparkline.length).toBeGreaterThan(0);
    for (const val of sparkline) {
      expect(typeof val).toBe("number");
    }
  });

  test("关闭后操作不报错", () => {
    const closedStore = new ProbeStore(join(tempDir, "closed.db"));
    closedStore.close();
    expect(closedStore.getTargets()).toHaveLength(0);
    expect(closedStore.getTargetById(1)).toBeNull();
  });
});