import { beforeAll, afterAll, describe, it, expect } from "vitest";
import request from "supertest";
import { PrismaClient } from "@prisma/client";
import type { FastifyInstance } from "fastify";
import { resetUser } from "./helpers";

// Ensure env BEFORE importing the server
process.env.NODE_ENV = process.env.NODE_ENV || "test";
process.env.PORT = process.env.PORT || "0";
process.env.DATABASE_URL =
  process.env.DATABASE_URL || "postgres://app:app@localhost:5432/skymoney";

const prisma = new PrismaClient();
let app: FastifyInstance;

beforeAll(async () => {
  // dynamic import AFTER env is set
  const { default: srv } = await import("../src/server"); // <-- needs `export default app` in server.ts
  app = srv;
  await app.ready();

  const U = "demo-user-1";
  await resetUser(U);

  await prisma.user.upsert({
    where: { id: U },
    update: {},
    create: { id: U, email: `${U}@demo.local` },
  });

  await prisma.variableCategory.createMany({
    data: [
      { id: "c1", userId: U, name: "Groceries", percent: 60, priority: 1, isSavings: false, balanceCents: 0n },
      { id: "c2", userId: U, name: "Saver",     percent: 40, priority: 2, isSavings: true,  balanceCents: 0n },
    ],
    skipDuplicates: true,
  });

  await prisma.fixedPlan.create({
    data: {
      id: "p1",
      userId: U,
      name: "Rent",
      cycleStart: new Date().toISOString(),
      dueOn: new Date(Date.now() + 7 * 864e5).toISOString(),
      totalCents: 10000n,
      fundedCents: 0n,
      priority: 1,
      fundingMode: "auto-on-deposit",
    },
  });
});

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

describe("POST /income integration", () => {
  it("allocates funds and returns audit", async () => {
    const res = await request(app.server)
      .post("/income")
      .set("x-user-id", "demo-user-1")
      .send({ amountCents: 5000 });

    expect(res.status).toBe(200);
    expect(res.body).toHaveProperty("fixedAllocations");
    expect(res.body).toHaveProperty("variableAllocations");
    expect(typeof res.body.remainingUnallocatedCents).toBe("number");
  });
});