/**
 * Regression test for the /agents roster and its coverage count.
 *
 * The page mirrors the app's registry, `AgentSpec.all` in
 * the-nook/Sources/NookCore/Agents/AgentRegistry.swift. When Muse joined
 * the registry in 0.10.0 the page kept twelve entries and kept saying
 * "twelve", so a shipped agent was missing from the one page that lists
 * them. The registry lives in another repo, so the expected roster is
 * restated here; when an agent is added there, add it here and on the page.
 *
 * FRE-997 restored the count. The page said thirteen while the registry held
 * eighteen, so the count was dropped rather than corrected (FRE-359 verdict B);
 * now that all eighteen rows are on the page, the roster check is an equality
 * check again and the page states eighteen. A subset check would let a shipped
 * agent go missing behind a passing suite, which is the NOOK-336 failure.
 *
 * STATIC SOURCE AUDIT, the same pattern as the downloads regressions.
 */
import { describe, it, expect } from "bun:test";
import { readFileSync } from "node:fs";
import { join } from "node:path";

const SOURCE = readFileSync(join(import.meta.dir, "agents.tsx"), "utf8");

/** User-facing copy only: comments are not copy and may name the old wording. */
const COPY = SOURCE.replace(/\/\*[\s\S]*?\*\//g, "").replace(/^\s*\/\/.*$/gm, "");

/** JSX wraps prose across lines; match a sentence, not its indentation. */
const PROSE = COPY.replace(/\s+/g, " ");

/** AgentSpec.all display names, in registry order (18 rows). @ The-Nook f4258034, 2026-10-29 */
const REGISTRY = [
  "Claude Code",
  "Codex",
  "OpenCode",
  "Pi",
  "Oh My Pi",
  "Muse",
  "Hermes",
  "OpenClaw",
  "Z.ai (ZCode)",
  "Gemini CLI",
  "Cline",
  "Qwen Code",
  "DeepSeek",
  "Kimi",
  "GitHub Copilot CLI",
  "Crush",
  "Cursor",
  "Amp"
];

const entries = [...SOURCE.matchAll(/^\s{4}name: "([^"]+)",$/gm)].map((m) => m[1]);

describe("Nook /agents roster", () => {
  it("lists every registry agent, once, in registry order", () => {
    expect(entries).toEqual(REGISTRY);
  });

  it("states the registry's size", () => {
    expect(entries.length).toBe(18);
    expect(COPY).toContain("all eighteen");
    expect(COPY).toContain("The 18 agents");
    expect(COPY).toContain("eighteen coding agents");
  });

  it("carries no stale count", () => {
    expect(COPY.toLowerCase()).not.toContain("thirteen");
    expect(COPY).not.toMatch(/\b13 agents\b/);
    expect(COPY).not.toContain("all thirteen");
  });
});

describe("Nook /agents remote coverage", () => {
  it("says agents can run on remote machines over SSH", () => {
    expect(PROSE).toContain("remote machines");
    expect(PROSE).toContain("remote sessions report into the same grid");
  });

  it("names the three agents that stay on this Mac", () => {
    expect(PROSE).toContain("Muse, Cline and Amp run on this Mac only");
  });

  it("discloses the local-only rows where they are listed", () => {
    const localOnly = [
      ...SOURCE.matchAll(/This Mac only — remote hosts skip it/g)
    ];
    expect(localOnly.length).toBe(3);
  });
});