/**
 * Integration tests for the Terms & Conditions admin CRUD (issue #11).
 * Categories are user-defined data: adding a clause under a new category name
 * creates the category. Covers CRUD + the manage_terms guard + the catalogue /
 * default-terms helpers that feed the PO editor.
 */
import { vi, describe, it, expect, afterAll } from "vitest";

vi.mock("@/auth", () => ({ auth: vi.fn() }));
vi.mock("next/cache", () => ({ revalidatePath: vi.fn() }));

import { auth } from "@/auth";
import { db } from "@/lib/db";
import {
  createTerm,
  updateTerm,
  toggleTermActive,
  deleteTerm,
} from "@/app/(portal)/admin/terms/actions";
import { getTermsCatalogue, getDefaultPoTerms } from "@/lib/terms-data";
import { makeSession, fd } from "./helpers";

const mockedAuth = vi.mocked(auth);
const PREFIX = "INTTEST_TERMS_";
const asManager = () => mockedAuth.mockResolvedValue(makeSession("u-mgr", "MANAGER") as never);

afterAll(async () => {
  await db.termsCondition.deleteMany({ where: { text: { startsWith: PREFIX } } });
  await db.termsCategory.deleteMany({ where: { name: { startsWith: PREFIX } } });
});

describe("createTerm", () => {
  it("creates a new category on the fly and the clause under it", async () => {
    asManager();
    const result = await createTerm(fd({ categoryName: `${PREFIX}Warranty`, text: `${PREFIX}12 months` }));
    expect(result).toEqual({ ok: true });

    const cat = await db.termsCategory.findFirstOrThrow({ where: { name: `${PREFIX}Warranty` }, include: { clauses: true } });
    expect(cat.clauses).toHaveLength(1);
    expect(cat.clauses[0].text).toBe(`${PREFIX}12 months`);
  });

  it("reuses an existing category (case-insensitive) for a second clause", async () => {
    asManager();
    await createTerm(fd({ categoryName: `${PREFIX}warranty`, text: `${PREFIX}24 months` }));
    const cats = await db.termsCategory.findMany({ where: { name: { startsWith: PREFIX, mode: "insensitive" }, AND: { name: { equals: `${PREFIX}Warranty`, mode: "insensitive" } } } });
    expect(cats).toHaveLength(1); // no duplicate category
  });

  it("requires a category and clause text", async () => {
    asManager();
    expect("error" in (await createTerm(fd({ categoryName: " ", text: "x" })))).toBe(true);
    expect("error" in (await createTerm(fd({ categoryName: `${PREFIX}X`, text: " " })))).toBe(true);
  });

  it("refuses callers without manage_terms", async () => {
    mockedAuth.mockResolvedValue(makeSession("u-tech", "TECHNICAL") as never);
    expect(await createTerm(fd({ categoryName: `${PREFIX}X`, text: `${PREFIX}nope` }))).toEqual({ error: "Forbidden" });
    mockedAuth.mockResolvedValue(makeSession("u-acc", "ACCOUNTS") as never);
    expect(await createTerm(fd({ categoryName: `${PREFIX}X`, text: `${PREFIX}nope` }))).toEqual({ error: "Forbidden" });
  });
});

describe("updateTerm / toggle / delete", () => {
  it("edits, toggles active, then deletes a clause", async () => {
    asManager();
    await createTerm(fd({ categoryName: `${PREFIX}Edit`, text: `${PREFIX}old` }));
    const t = await db.termsCondition.findFirstOrThrow({ where: { text: `${PREFIX}old` } });

    expect(await updateTerm(t.id, fd({ categoryName: `${PREFIX}Edit2`, text: `${PREFIX}new` }))).toEqual({ ok: true });
    const after = await db.termsCondition.findUniqueOrThrow({ where: { id: t.id }, include: { category: true } });
    expect(after.text).toBe(`${PREFIX}new`);
    expect(after.category.name).toBe(`${PREFIX}Edit2`);

    expect(await toggleTermActive(t.id)).toEqual({ ok: true });
    expect((await db.termsCondition.findUniqueOrThrow({ where: { id: t.id } })).isActive).toBe(false);

    expect(await deleteTerm(t.id)).toEqual({ ok: true });
    expect(await db.termsCondition.findUnique({ where: { id: t.id } })).toBeNull();
  });

  it("guards update/toggle/delete behind the permission", async () => {
    mockedAuth.mockResolvedValue(makeSession("u-tech", "TECHNICAL") as never);
    expect(await updateTerm("x", fd({ categoryName: `${PREFIX}X`, text: "y" }))).toEqual({ error: "Forbidden" });
    expect(await toggleTermActive("x")).toEqual({ error: "Forbidden" });
    expect(await deleteTerm("x")).toEqual({ error: "Forbidden" });
  });
});

describe("catalogue + default terms helpers", () => {
  it("getTermsCatalogue exposes active categories with their active clauses", async () => {
    asManager();
    await createTerm(fd({ categoryName: `${PREFIX}Cat`, text: `${PREFIX}active clause` }));
    await createTerm(fd({ categoryName: `${PREFIX}Cat`, text: `${PREFIX}inactive clause` }));
    const inactive = await db.termsCondition.findFirstOrThrow({ where: { text: `${PREFIX}inactive clause` } });
    await toggleTermActive(inactive.id);

    const cat = (await getTermsCatalogue()).find((c) => c.name === `${PREFIX}Cat`);
    expect(cat?.clauses).toContain(`${PREFIX}active clause`);
    expect(cat?.clauses).not.toContain(`${PREFIX}inactive clause`);
  });

  it("getDefaultPoTerms returns isDefault clauses", async () => {
    asManager();
    await createTerm(fd({ categoryName: `${PREFIX}Def`, text: `${PREFIX}default clause`, isDefault: "true" }));
    const defaults = await getDefaultPoTerms();
    expect(defaults.some((d) => d.text === `${PREFIX}default clause` && d.category === `${PREFIX}Def`)).toBe(true);
  });
});