import { describe, it, expect, beforeAll, afterAll, beforeEach } from "vitest";
import type { FastifyInstance } from "fastify";
import { createTestApp, cleanDb, signupUser } from "./helpers.js";

let app: FastifyInstance;

beforeAll(async () => {
  app = await createTestApp();
});

afterAll(async () => {
  await app.close();
});

beforeEach(async () => {
  await cleanDb();
});

describe("POST /login", () => {
  it("sends OTP for an existing user", async () => {
    await signupUser(app, "test@example.com", "Org");

    const res = await app.inject({
      method: "POST",
      url: "/login",
      payload: { email: "test@example.com" },
    });

    expect(res.statusCode).toBe(200);
    expect(res.json()).toEqual({ message: "OTP sent to your email" });
  });

  it("returns 404 if user does not exist", async () => {
    const res = await app.inject({
      method: "POST",
      url: "/login",
      payload: { email: "unknown@example.com" },
    });

    expect(res.statusCode).toBe(404);
    expect(res.json().error).toMatch(/sign up/i);
  });

  it("returns 400 if email is missing", async () => {
    const res = await app.inject({
      method: "POST",
      url: "/login",
      payload: {},
    });

    expect(res.statusCode).toBe(400);
  });

  it("rate limits after 3 requests", async () => {
    await signupUser(app, "ratelimit@example.com", "Org");

    for (let i = 0; i < 3; i++) {
      await app.inject({ method: "POST", url: "/login", payload: { email: "ratelimit@example.com" } });
    }

    const res = await app.inject({
      method: "POST",
      url: "/login",
      payload: { email: "ratelimit@example.com" },
    });

    expect(res.statusCode).toBe(429);
  });
});