import { describe, expect, test } from "bun:test";

import { parsePingOutput } from "../../../../../src/server/checker/runner/icmp/parse";

describe("parsePingOutput", () => {
  test("解析 Linux ping 输出", () => {
    const stats = parsePingOutput(
      `3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 1.234/2.345/3.456/0.567 ms`,
      "linux",
    );
    expect(stats).toEqual({
      alive: true,
      avgLatencyMs: 2.345,
      maxLatencyMs: 3.456,
      minLatencyMs: 1.234,
      packetLoss: 0,
      received: 3,
      transmitted: 3,
    });
  });

  test("解析 macOS ping 输出", () => {
    const stats = parsePingOutput(
      `3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 1.234/2.345/3.456/0.567 ms`,
      "darwin",
    );
    expect(stats?.avgLatencyMs).toBe(2.345);
    expect(stats?.packetLoss).toBe(0);
  });

  test("解析 Windows 英文 ping 输出", () => {
    const stats = parsePingOutput(
      `Packets: Sent = 3, Received = 3, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 1ms, Maximum = 3ms, Average = 2ms`,
      "win32",
    );
    expect(stats).toMatchObject({ avgLatencyMs: 2, maxLatencyMs: 3, minLatencyMs: 1, packetLoss: 0 });
  });

  test("解析 Windows 中文 ping 输出", () => {
    const stats = parsePingOutput(
      `数据包: 已发送 = 3，已接收 = 3，丢失 = 0 (0% 丢失)，
往返行程的估计时间(以毫秒为单位):
    最短 = 1ms，最长 = 3ms，平均 = 2ms`,
      "win32",
    );
    expect(stats).toMatchObject({ avgLatencyMs: 2, maxLatencyMs: 3, minLatencyMs: 1, packetLoss: 0 });
  });

  test("解析全部丢包", () => {
    const stats = parsePingOutput(`3 packets transmitted, 0 received, 100% packet loss, time 2003ms`, "linux");
    expect(stats).toMatchObject({ alive: false, avgLatencyMs: null, maxLatencyMs: null, minLatencyMs: null });
  });

  test("无法解析返回 null", () => {
    expect(parsePingOutput("unexpected output", "linux")).toBeNull();
  });
});