import { afterEach, beforeEach, describe, expect, test } from "bun:test";
import type { AppWithContext } from "../app";
import { buildApp } from "../app";
import { createUser } from "../users/user-repository";

let app: AppWithContext;
let employeeCookie = "";

function firstHeader(value: string | string[] | undefined) {
  return Array.isArray(value) ? value[0] : value ?? "";
}

async function login(username: string) {
  const response = await app.inject({ method: "POST", url: "/api/login", payload: { username } });
  return firstHeader(response.headers["set-cookie"]);
}

beforeEach(async () => {
  app = await buildApp(":memory:");

  await createUser(app.dbContext, {
    username: "dev-employee",
    name: "Dev Employee",
    email: "dev.employee@example.com",
    role: "employee"
  });

  employeeCookie = await login("dev-employee");
});

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

describe("assignment 4 order lifecycle rules", () => {
  test("keeps quantity editing blocked for processing orders", async () => {
    const response = await app.inject({
      method: "POST",
      url: "/api/orders/order_2/items/item_3/quantity",
      headers: { cookie: employeeCookie },
      payload: { quantity: 2 }
    });

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

  test("allows address editing for processing orders", async () => {
    const response = await app.inject({
      method: "POST",
      url: "/api/orders/order_2/shipping-address",
      headers: { cookie: employeeCookie },
      payload: {
        fullName: "Jane Doe",
        line1: "50 New Street",
        line2: null,
        city: "Oakland",
        state: "CA",
        postalCode: "94607",
        country: "US"
      }
    });

    expect(response.statusCode).toBe(200);
    expect(response.json().shippingAddress.city).toBe("Oakland");
  });

  test("allows cancellation for processing orders", async () => {
    const response = await app.inject({
      method: "POST",
      url: "/api/orders/order_2/cancel",
      headers: { cookie: employeeCookie },
      payload: { reason: "Customer request" }
    });

    expect(response.statusCode).toBe(200);
    expect(response.json().status).toBe("cancelled");
  });

  test("blocks address editing for shipped orders", async () => {
    const response = await app.inject({
      method: "POST",
      url: "/api/orders/order_3/shipping-address",
      headers: { cookie: employeeCookie },
      payload: {
        fullName: "John Smith",
        line1: "77 Final Mile Road",
        line2: null,
        city: "Denver",
        state: "CO",
        postalCode: "80202",
        country: "US"
      }
    });

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

  test("blocks cancellation for shipped orders", async () => {
    const response = await app.inject({
      method: "POST",
      url: "/api/orders/order_3/cancel",
      headers: { cookie: employeeCookie },
      payload: { reason: "Late request" }
    });

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