import { describe, it, expect } from "bun:test";
import { showGlobalHelp, showCommandHelp } from "../../src/cli/help.ts";

describe("showGlobalHelp", () => {
  it("默认前缀时包含 rune", () => {
    const output = showGlobalHelp();
    expect(output).toContain("rune <命令> [参数]");
    expect(output).toContain("rune init opencode");
  });

  it("自定义前缀时使用传入前缀", () => {
    const output = showGlobalHelp("bunx @lanyuanxiaoyao/rune");
    expect(output).toContain("bunx @lanyuanxiaoyao/rune <命令> [参数]");
    expect(output).toContain("bunx @lanyuanxiaoyao/rune init opencode");
  });

  it("包含所有命令行", () => {
    const output = showGlobalHelp("rune");
    expect(output).toContain("init <工具...>");
    expect(output).toContain("discuss");
    expect(output).toContain("create <变更>");
    expect(output).toContain("plan <变更> <文档>");
    expect(output).toContain("build <名称>");
    expect(output).toContain("archive <名称>");
    expect(output).toContain("finish <名称>");
    expect(output).toContain("status");
    expect(output).toContain("help");
    expect(output).toContain("version");
  });

  it("以标题行开头", () => {
    const output = showGlobalHelp("rune");
    expect(output.startsWith("Rune")).toBe(true);
  });
});

describe("showCommandHelp", () => {
  it("plan 命令包含用法、参数、描述、示例", () => {
    const output = showCommandHelp("plan", "bunx @lanyuanxiaoyao/rune");
    expect(output).toContain("bunx @lanyuanxiaoyao/rune plan <change-name> <document-name>");
    expect(output).toContain("<change-name>");
    expect(output).toContain("<document-name>");
    expect(output).toContain("规划阶段");
    expect(output).toContain("bunx @lanyuanxiaoyao/rune plan add-user-auth");
  });

  it("init 命令包含工具参数说明", () => {
    const output = showCommandHelp("init", "rune");
    expect(output).toContain("rune init <工具...>");
    expect(output).toContain("opencode");
  });

  it("create 命令包含变更名参数", () => {
    const output = showCommandHelp("create", "rune");
    expect(output).toContain("rune create <change-name>");
    expect(output).toContain("变更名称");
    expect(output).toContain("rune create add-user-auth");
  });

  it("finish 命令包含归档变更说明", () => {
    const output = showCommandHelp("finish", "rune");
    expect(output).toContain("rune finish <change-name>");
    expect(output).toContain("归档变更");
    expect(output).toContain("将变更目录");
  });

  it("不存在的命令返回 null", () => {
    const output = showCommandHelp("nonexistent", "rune");
    expect(output).toBeNull();
  });
});