import { describe, it, expect, beforeEach, afterEach } from "vitest";
import Fastify, { type FastifyInstance } from "fastify";
import { generateSync, generateSecret } from "otplib";
import { registerApi } from "../src/api/routes.js";
import { hashPassword, type AuthConfig } from "../src/api/auth.js";
import { ChatService } from "../src/agent/chat-service.js";
import { ReviewService } from "../src/gatekeeper/review.js";
import { AssetRepository } from "../src/gatekeeper/repository.js";
import { createAsset } from "../src/gatekeeper/assets.js";
import { createLogger } from "../src/audit/log.js";

const log = createLogger("silent");
const auth: AuthConfig = {
  adminUser: "kantin",
  adminPasswordHash: hashPassword("pw"),
  totpSecret: generateSecret(),
  jwtSecret: "jwt-secret-suffisamment-long-pour-hs256",
};

// ChatService stub : pas de vrai LLM.
const chatStub = {
  handle: async (_actor: string, text: string) => `echo:${text}`,
} as unknown as ChatService;

let app: FastifyInstance;
let repo: AssetRepository;

beforeEach(async () => {
  repo = new AssetRepository(":memory:");
  const review = new ReviewService(repo, log);
  app = Fastify();
  await registerApi(app, { auth, chat: chatStub, review, state: () => ({ phase: "2-write-review", tools: 3 }) });
  await app.ready();
});
afterEach(async () => {
  await app.close();
  repo.close();
});

async function tokenOf(): Promise<string> {
  const res = await app.inject({
    method: "POST",
    url: "/api/auth/login",
    payload: { user: "kantin", password: "pw", totp: generateSync({ secret: auth.totpSecret }) },
  });
  return res.json().token as string;
}

describe("API auth", () => {
  it("login renvoie un token avec bons facteurs", async () => {
    const res = await app.inject({
      method: "POST",
      url: "/api/auth/login",
      payload: { user: "kantin", password: "pw", totp: generateSync({ secret: auth.totpSecret }) },
    });
    expect(res.statusCode).toBe(200);
    expect(res.json().token).toBeTruthy();
  });

  it("login 401 avec mauvais mot de passe", async () => {
    const res = await app.inject({
      method: "POST",
      url: "/api/auth/login",
      payload: { user: "kantin", password: "bad", totp: generateSync({ secret: auth.totpSecret }) },
    });
    expect(res.statusCode).toBe(401);
  });

  it("/api/chat refuse sans token (401)", async () => {
    const res = await app.inject({ method: "POST", url: "/api/chat", payload: { message: "salut" } });
    expect(res.statusCode).toBe(401);
  });

  it("/api/chat répond avec token", async () => {
    const token = await tokenOf();
    const res = await app.inject({
      method: "POST",
      url: "/api/chat",
      headers: { authorization: `Bearer ${token}` },
      payload: { message: "salut" },
    });
    expect(res.statusCode).toBe(200);
    expect(res.json().reply).toBe("echo:salut");
  });
});

describe("API review", () => {
  it("liste, approuve et refuse", async () => {
    repo.create(createAsset({ id: "tool:x", type: "tool", version: "1.0.0", riskTier: "privileged" }));
    const token = await tokenOf();
    const auth_h = { authorization: `Bearer ${token}` };

    const list = await app.inject({ method: "GET", url: "/api/review", headers: auth_h });
    expect(list.json().assets).toHaveLength(1);

    const ok = await app.inject({ method: "POST", url: "/api/review/tool:x/approve", headers: auth_h });
    expect(ok.json().asset.status).toBe("approuvé");

    const missing = await app.inject({ method: "POST", url: "/api/review/nope/refuse", headers: auth_h });
    expect(missing.statusCode).toBe(404);
  });
});