import { describe, expect, test } from "bun:test";
import { runCommandCheck } from "../../../src/server/checker/command-runner";
import type { ResolvedCommandTarget } from "../../../src/server/checker/types";

function makeTarget(
  command: Partial<ResolvedCommandTarget["command"]>,
  overrides?: Partial<ResolvedCommandTarget>,
): ResolvedCommandTarget {
  return {
    type: "command",
    name: "test-cmd",
    group: "default",
    command: {
      exec: "echo",
      args: ["hello"],
      cwd: "/tmp",
      env: {},
      maxOutputBytes: 1024 * 1024,
      ...command,
    },
    intervalMs: 60000,
    timeoutMs: 5000,
    ...overrides,
  };
}

describe("runCommandCheck", () => {
  test("exitCode=0 成功", async () => {
    const result = await runCommandCheck(makeTarget({ exec: "true", args: [] }));
    expect(result.matched).toBe(true);
    expect(result.statusDetail).toBe("exitCode=0");
    expect(result.failure).toBeNull();
  });

  test("exitCode=1 不匹配默认 [0]", async () => {
    const result = await runCommandCheck(makeTarget({ exec: "false", args: [] }));
    expect(result.matched).toBe(false);
    expect(result.statusDetail).toBe("exitCode=1");
    expect(result.failure).not.toBeNull();
    expect(result.failure!.phase).toBe("exitCode");
  });

  test("exitCode=1 匹配自定义 [1]", async () => {
    const result = await runCommandCheck(makeTarget({ exec: "false", args: [] }, { expect: { exitCode: [1] } }));
    expect(result.matched).toBe(true);
    expect(result.statusDetail).toBe("exitCode=1");
  });

  test("命令不存在返回 spawn 错误", async () => {
    const result = await runCommandCheck(makeTarget({ exec: "/nonexistent/command/xyz" }));
    expect(result.matched).toBe(false);
    expect(result.failure).not.toBeNull();
    expect(result.failure!.phase).toBe("exitCode");
    expect(result.failure!.message).toBeTruthy();
  });

  test("超时返回错误", async () => {
    const result = await runCommandCheck(makeTarget({ exec: "sleep", args: ["10"] }, { timeoutMs: 100 }));
    expect(result.matched).toBe(false);
    expect(result.failure).not.toBeNull();
    expect(result.failure!.message).toContain("超时");
  });

  test("stdout 输出捕获", async () => {
    const result = await runCommandCheck(makeTarget({ exec: "echo", args: ["hello world"] }));
    expect(result.matched).toBe(true);
  });

  test("stdout 匹配 expect", async () => {
    const result = await runCommandCheck(
      makeTarget({ exec: "echo", args: ["hello"] }, { expect: { stdout: [{ contains: "hello" }] } }),
    );
    expect(result.matched).toBe(true);
  });

  test("stdout 不匹配 expect", async () => {
    const result = await runCommandCheck(
      makeTarget({ exec: "echo", args: ["hello"] }, { expect: { stdout: [{ contains: "nonexistent" }] } }),
    );
    expect(result.matched).toBe(false);
    expect(result.failure!.phase).toBe("stdout");
  });

  test("stderr 匹配 expect", async () => {
    const result = await runCommandCheck(
      makeTarget({ exec: "bash", args: ["-c", "echo error >&2"] }, { expect: { stderr: [{ contains: "error" }] } }),
    );
    expect(result.matched).toBe(true);
  });

  test("输出超过 maxOutputBytes", async () => {
    const result = await runCommandCheck(
      makeTarget({
        exec: "bash",
        args: ["-c", "yes | head -1000"],
        maxOutputBytes: 10,
      }),
    );
    expect(result.matched).toBe(false);
    expect(result.failure).not.toBeNull();
    expect(result.failure!.message).toContain("超过限制");
  });

  test("durationMs 非空", async () => {
    const result = await runCommandCheck(makeTarget({ exec: "true", args: [] }));
    expect(result.durationMs).not.toBeNull();
    expect(result.durationMs!).toBeGreaterThanOrEqual(0);
  });

  test("ls 命令执行成功", async () => {
    const result = await runCommandCheck(makeTarget({ exec: "ls", args: ["/tmp"] }));
    expect(result.matched).toBe(true);
    expect(result.statusDetail).toBe("exitCode=0");
  });

  test("不使用 shell，通配符不被展开", async () => {
    const result = await runCommandCheck(
      makeTarget({ exec: "echo", args: ["*"] }, { expect: { stdout: [{ contains: "*" }] } }),
    );
    expect(result.matched).toBe(true);
  });

  test("不提供 stdin，等待输入的命令会阻塞超时", async () => {
    const result = await runCommandCheck(makeTarget({ exec: "bash", args: ["-c", "read line"] }, { timeoutMs: 500 }));
    expect(result.matched).toBe(false);
  });
});