/**
 * @file Tests the `Skill plugins` row of scripts/plugin-doctor.js — the check
 * that tells a fresh install its pipelines name slash commands no installed
 * plugin provides (today: `superpowers`, which `/agenthub:ship-feature-lane` drives
 * step by step). The row must WARN and never FAIL: without that plugin the
 * dashboard, hooks, CLI and MCP all still work, so failing a doctor run over it
 * would cry wolf. Every case runs against an injected temp CLAUDE_HOME.
 * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
 */

const { describe, it, after } = require("node:test");
const assert = require("node:assert/strict");
const fs = require("node:fs");
const os = require("node:os");
const path = require("node:path");

const TMP_HOME = fs.mkdtempSync(path.join(os.tmpdir(), "agenthub-doctor-skills-"));
process.env.CLAUDE_HOME = TMP_HOME;

const { diagnose } = require("../../scripts/plugin-doctor");

after(() => {
  fs.rmSync(TMP_HOME, { recursive: true, force: true });
  delete process.env.CLAUDE_HOME;
});

/** Rewrite the injected Claude home, then read back just the row under test. */
function rowFor({ plugins = {}, enabledPlugins = {}, userSkills = [], installDirs = [] }) {
  fs.rmSync(TMP_HOME, { recursive: true, force: true });
  fs.mkdirSync(path.join(TMP_HOME, "plugins"), { recursive: true });
  fs.mkdirSync(path.join(TMP_HOME, "skills"), { recursive: true });
  fs.writeFileSync(
    path.join(TMP_HOME, "plugins", "installed_plugins.json"),
    JSON.stringify({ plugins })
  );
  fs.writeFileSync(path.join(TMP_HOME, "settings.json"), JSON.stringify({ enabledPlugins }));
  // Created AFTER the wipe above: readPlugins() only counts an instance whose
  // installPath still exists on disk.
  for (const dir of installDirs) fs.mkdirSync(dir, { recursive: true });
  for (const name of userSkills) {
    fs.mkdirSync(path.join(TMP_HOME, "skills", name), { recursive: true });
    fs.writeFileSync(
      path.join(TMP_HOME, "skills", name, "SKILL.md"),
      `---\nname: ${name}\n---\n\nbody\n`
    );
  }
  const row = diagnose().find((r) => r.label === "Skill plugins");
  assert.ok(row, "the doctor must always emit a Skill plugins row");
  return row;
}

const SP_DIR = path.join(TMP_HOME, "plugins", "sp");

/** An installed superpowers instance; `enabled` mirrors settings.json. */
function installedSuperpowers(enabled) {
  return {
    plugins: { "superpowers@official": [{ installPath: SP_DIR, scope: "user", version: "1.0.0" }] },
    enabledPlugins: { "superpowers@official": enabled },
    installDirs: [SP_DIR],
  };
}

/** The skills the built-in templates name, read from the templates themselves. */
function requiredSuperpowersSkills() {
  const { listPipelines } = require("../lib/pipelines");
  const names = new Set();
  for (const p of listPipelines()) {
    for (const cmd of [p.skill, ...p.nodes.map((n) => n.command)]) {
      const m = /^\/superpowers:([A-Za-z0-9_-]+)/.exec(cmd || "");
      if (m) names.add(m[1]);
    }
  }
  return [...names];
}

describe("plugin-doctor: Skill plugins row", () => {
  it("warns, never fails, when a plugin the pipelines name is not installed", () => {
    const row = rowFor({});

    assert.equal(row.level, "warn", "a missing skill plugin must not fail the doctor run");
    assert.match(row.detail, /superpowers/);
    assert.match(row.detail, /claude plugin install superpowers/);
  });

  it("names the specific skills that are unavailable, so the reader can verify the claim", () => {
    const row = rowFor({});

    for (const skill of requiredSuperpowersSkills()) {
      assert.match(row.detail, new RegExp(skill.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")));
    }
  });

  it("passes once the plugin is installed and enabled", () => {
    const row = rowFor(installedSuperpowers(true));

    assert.equal(row.level, "ok", row.detail);
    assert.match(row.detail, /superpowers available/);
  });

  it("treats an explicitly disabled plugin as missing - Claude Code will not resolve its skills", () => {
    const row = rowFor(installedSuperpowers(false));

    assert.equal(row.level, "warn", row.detail);
    assert.match(row.detail, /superpowers/);
  });

  it("accepts the skills copied into ~/.claude/skills instead of installed as a plugin", () => {
    // A legitimate setup. Reporting it as missing would train the reader to
    // ignore this row, which is the only failure mode a warning really has.
    const row = rowFor({ userSkills: requiredSuperpowersSkills() });

    assert.equal(row.level, "ok", row.detail);
  });

  it("still warns when only SOME of the required skills are present locally", () => {
    const [first, ...rest] = requiredSuperpowersSkills();
    const row = rowFor({ userSkills: [first] });

    assert.equal(row.level, "warn", row.detail);
    assert.ok(!row.detail.includes(`${first},`), `${first} is present and must not be listed`);
    for (const skill of rest) assert.match(row.detail, new RegExp(skill));
  });
});