import { describe, it, expect, beforeEach, afterEach } from "bun:test";
import { existsSync } from "node:fs";
import { mkdir, rm, readFile, readdir } from "node:fs/promises";
import { join } from "node:path";
import { injectOpenCode } from "../../src/adapters/opencode.ts";

const TMP_DIR = join(import.meta.dir, "__tmp_opencode_test__");

beforeEach(async () => {
  await mkdir(TMP_DIR, { recursive: true });
});

afterEach(async () => {
  await rm(TMP_DIR, { recursive: true, force: true });
});

describe("injectOpenCode", () => {
  it("生成 discuss、plan、build、archive 的 command 和 skill 文件", async () => {
    await injectOpenCode(TMP_DIR);

    const commands = await readdir(join(TMP_DIR, ".opencode", "commands"));
    const skills = await readdir(join(TMP_DIR, ".opencode", "skills"));

    for (const stage of ["discuss", "plan", "build", "archive"]) {
      expect(commands).toContain(`rune-${stage}.md`);
      expect(skills).toContain(`rune-${stage}`);
      expect(
        existsSync(join(TMP_DIR, ".opencode", "skills", `rune-${stage}`, "SKILL.md")),
      ).toBe(true);
    }
  });

  it("生成 rune-status command 和 skill", async () => {
    await injectOpenCode(TMP_DIR);

    const commands = await readdir(join(TMP_DIR, ".opencode", "commands"));
    const skills = await readdir(join(TMP_DIR, ".opencode", "skills"));

    expect(commands).toContain("rune-status.md");
    expect(skills).toContain("rune-status");
    expect(
      existsSync(join(TMP_DIR, ".opencode", "skills", "rune-status", "SKILL.md")),
    ).toBe(true);
  });

  it("command 文件包含 skill 调用指令", async () => {
    await injectOpenCode(TMP_DIR);
    const content = await readFile(
      join(TMP_DIR, ".opencode", "commands", "rune-discuss.md"),
      "utf-8",
    );
    expect(content).toContain("rune-discuss");
  });

  it("skill 文件包含 bash 命令", async () => {
    await injectOpenCode(TMP_DIR);
    const content = await readFile(
      join(TMP_DIR, ".opencode", "skills", "rune-discuss", "SKILL.md"),
      "utf-8",
    );
    expect(content).toContain("rune discuss");
    expect(content).toContain("description");
    expect(content).toContain("name: rune-discuss");
  });

  it("plan/build/archive skill 包含变更名称参数提示", async () => {
    await injectOpenCode(TMP_DIR);

    for (const stage of ["plan", "build", "archive"]) {
      const content = await readFile(
        join(TMP_DIR, ".opencode", "skills", `rune-${stage}`, "SKILL.md"),
        "utf-8",
      );
      expect(content).toContain("变更名");
    }
  });

  it("重复注入时不覆盖已存在的文件", async () => {
    await injectOpenCode(TMP_DIR);
    const originalContent = await readFile(
      join(TMP_DIR, ".opencode", "commands", "rune-discuss.md"),
      "utf-8",
    );

    await injectOpenCode(TMP_DIR);
    const content = await readFile(
      join(TMP_DIR, ".opencode", "commands", "rune-discuss.md"),
      "utf-8",
    );
    expect(content).toBe(originalContent);
  });
});