import { afterEach, beforeEach, describe, expect, it } from "vitest";
import {
  __resetCustomerMemoryForTests,
  getCustomerMemoryScope,
  getPotsEstimatorCarryover,
  getRapidRouterDraftCarryover,
  getSmartProfile,
  listResumeWorkCards,
  mergeSmartProfile,
  setCustomerMemoryScope,
  setPotsEstimatorCarryover,
  setRapidRouterDraftCarryover,
  upsertResumeWorkCard,
} from "./customerMemory";

const LEGACY_CUSTOMER_MEMORY_KEY = "masters_toolkit_customer_memory_v1";
const store = new Map<string, string>();

beforeEach(() => {
  store.clear();
  __resetCustomerMemoryForTests();
  setCustomerMemoryScope("anonymous");
  Object.defineProperty(window, "localStorage", {
    configurable: true,
    value: {
      getItem: (key: string) => (store.has(key) ? String(store.get(key)) : null),
      setItem: (key: string, value: string) => {
        store.set(key, String(value));
      },
      removeItem: (key: string) => {
        store.delete(key);
      },
      clear: () => {
        store.clear();
      },
    },
  });
});

afterEach(() => {
  __resetCustomerMemoryForTests();
  setCustomerMemoryScope("anonymous");
  store.clear();
});

describe("customerMemory", () => {
  it("isolates stored customer data by scoped user identity", () => {
    store.set(
      LEGACY_CUSTOMER_MEMORY_KEY,
      JSON.stringify({
        profile: { companyName: "Legacy Shared Customer" },
      })
    );

    setCustomerMemoryScope(" James@Verizon.com ");
    expect(getCustomerMemoryScope()).toBe("james@verizon.com");
    expect(getSmartProfile()).toBeNull();
    mergeSmartProfile({ companyName: "John Q", email: "johnq@example.com" });
    setRapidRouterDraftCarryover({ customerName: "John Q", qty: 2 }, "James draft");
    upsertResumeWorkCard({
      id: "rapid_router:last_order_draft",
      title: "Repeat last Rapid Router order draft",
      source: "rapid_router",
      actionCommand: "navigate:rapid_router_draft",
    });

    setCustomerMemoryScope("timmy@verizon.com");
    expect(getSmartProfile()).toBeNull();
    expect(getRapidRouterDraftCarryover()).toBeNull();
    expect(listResumeWorkCards()).toEqual([]);

    mergeSmartProfile({ companyName: "Different Customer" });
    expect(getSmartProfile()?.companyName).toBe("Different Customer");

    setCustomerMemoryScope("james@verizon.com");
    expect(getSmartProfile()?.companyName).toBe("John Q");
    expect(getRapidRouterDraftCarryover()?.summary).toBe("James draft");
    expect(listResumeWorkCards()[0]?.id).toBe("rapid_router:last_order_draft");
    const persisted = JSON.parse(store.get("masters_toolkit_customer_memory_v2:james@verizon.com") || "{}");
    expect(persisted.profile?.companyName).toBe("John Q");
    expect(persisted.carryover?.rapidRouterDraft?.summary).toBe("James draft");
    expect(Array.isArray(persisted.cards)).toBe(true);
  });

  it("merges and returns smart profile fields", () => {
    setCustomerMemoryScope("owner@example.com");
    mergeSmartProfile({ companyName: "Acme", city: "Miami", state: "fl", zip: "33127-1000" });
    mergeSmartProfile({ contactName: "Pat", email: "pat@example.com" });
    const profile = getSmartProfile();
    expect(profile?.companyName).toBe("Acme");
    expect(profile?.city).toBe("Miami");
    expect(profile?.state).toBe("FL");
    expect(profile?.zip).toBe("33127");
    expect(profile?.contactName).toBe("Pat");
    expect(profile?.email).toBe("pat@example.com");
  });

  it("stores and sorts resume cards by recency", () => {
    setCustomerMemoryScope("owner@example.com");
    upsertResumeWorkCard({
      id: "older",
      title: "Older card",
      source: "knowledgebase",
      actionCommand: "router_helper:open",
      updatedAt: "2026-03-01T00:00:00.000Z",
    });
    upsertResumeWorkCard({
      id: "newer",
      title: "Newer card",
      source: "rapid_router",
      actionCommand: "navigate:rapid_router_draft",
      updatedAt: "2026-03-02T00:00:00.000Z",
    });
    const cards = listResumeWorkCards();
    expect(cards[0]?.id).toBe("newer");
    expect(cards[1]?.id).toBe("older");
  });

  it("persists customer carryover and profile data across a reload", () => {
    setCustomerMemoryScope("owner@example.com");
    mergeSmartProfile({ companyName: "Acme", city: "Miami" });
    setPotsEstimatorCarryover({ companyName: "Acme", totalLines: 12 }, "Acme carryover");
    setRapidRouterDraftCarryover({ customerName: "Acme", qty: 3 }, "Acme order");

    __resetCustomerMemoryForTests();

    expect(getSmartProfile()?.companyName).toBe("Acme");
    expect(getSmartProfile()?.city).toBe("Miami");
    expect(getPotsEstimatorCarryover()?.summary).toBe("Acme carryover");
    expect(getRapidRouterDraftCarryover()?.summary).toBe("Acme order");
    expect((getPotsEstimatorCarryover()?.payload || {}).companyName).toBe("Acme");
    expect((getRapidRouterDraftCarryover()?.payload || {}).qty).toBe(3);
    expect(store.get("masters_toolkit_customer_memory_v2:owner@example.com")).toContain("Acme");
  });
});