import { afterAll, beforeEach, describe, expect, it } from "vitest";
import db from "../../app/db.server";
import { compileCustomerData, purgeShopData, redactCustomerData } from "../../app/services/gdpr.server";

const shopDomain = "gdpr-integration-test.myshopify.com";

async function cleanup() {
  await db.booking.deleteMany({ where: { shopDomain } });
  await db.location.deleteMany({ where: { shopDomain } });
  await db.shop.deleteMany({ where: { shopDomain } });
  await db.session.deleteMany({ where: { shop: shopDomain } });
}

async function seed() {
  await db.shop.create({ data: { shopDomain } });
  const location = await db.location.create({
    data: { shopDomain, name: "Test Location", address: "", timezone: "America/Toronto" },
  });
  const zone = await db.zone.create({
    data: { shopDomain, locationId: location.id, name: "Local", type: "postal", postalCodes: ["M5V"] },
  });
  await db.rate.create({
    data: { shopDomain, method: "LOCAL_DELIVERY", zoneId: zone.id, name: "Standard", priceCents: 500, keyedBy: "zone" },
  });
  await db.slotTemplate.create({
    data: { shopDomain, locationId: location.id, method: "PICKUP", weekday: 1, startMin: 540, endMin: 600, capacity: 5 },
  });
  const booking = await db.booking.create({
    data: {
      shopDomain,
      orderId: "gid://shopify/Order/gdpr-1",
      locationId: location.id,
      method: "PICKUP",
      slotStart: new Date("2026-08-25T13:00:00.000Z"),
      slotEnd: new Date("2026-08-25T13:30:00.000Z"),
      customerEmail: "shopper@example.com",
      customerPhone: "+15551234567",
    },
  });
  return { location, zone, booking };
}

describe("GDPR handlers", () => {
  beforeEach(cleanup);
  afterAll(async () => {
    await cleanup();
    await db.$disconnect();
  });

  it("compileCustomerData finds Bookings matching the customer's email", async () => {
    await seed();
    const results = await compileCustomerData(shopDomain, { email: "shopper@example.com" });
    expect(results).toHaveLength(1);
    expect(results[0].orderId).toBe("gid://shopify/Order/gdpr-1");
  });

  it("compileCustomerData finds Bookings matching the customer's phone", async () => {
    await seed();
    const results = await compileCustomerData(shopDomain, { phone: "+15551234567" });
    expect(results).toHaveLength(1);
  });

  it("compileCustomerData returns nothing for an unrelated customer", async () => {
    await seed();
    const results = await compileCustomerData(shopDomain, { email: "someone-else@example.com" });
    expect(results).toHaveLength(0);
  });

  it("redactCustomerData anonymizes matching Bookings but keeps the row", async () => {
    const { booking } = await seed();
    const { count } = await redactCustomerData(shopDomain, { email: "shopper@example.com" });
    expect(count).toBe(1);

    const after = await db.booking.findUnique({ where: { id: booking.id } });
    expect(after).not.toBeNull();
    expect(after?.customerEmail).toBeNull();
    expect(after?.customerPhone).toBeNull();
    expect(after?.orderId).toBe("gid://shopify/Order/gdpr-1"); // booking history preserved
  });

  it("purgeShopData deletes every shopDomain-scoped row, respecting FK order", async () => {
    const { location, zone, booking } = await seed();

    await purgeShopData(shopDomain);

    expect(await db.booking.findUnique({ where: { id: booking.id } })).toBeNull();
    expect(await db.location.findUnique({ where: { id: location.id } })).toBeNull();
    expect(await db.zone.findUnique({ where: { id: zone.id } })).toBeNull(); // cascaded from Location
    expect(await db.rate.findMany({ where: { shopDomain } })).toHaveLength(0); // cascaded from Zone
    expect(await db.slotTemplate.findMany({ where: { shopDomain } })).toHaveLength(0); // cascaded from Location
    expect(await db.shop.findUnique({ where: { shopDomain } })).toBeNull();
  });
});