import { describe, expect, it } from "vitest";
import {
  buildCanonicalQuery,
  getEntityCanonical,
} from "@/lib/getCanonicalUrl";

const YASUJ_CITY_ID = 123;
const ROOT_CITY_ID = 600;

describe("buildCanonicalQuery — تصمیم M3-B", () => {
  it("صفحهٔ ۲+ در canonical می‌ماند تا ایندکس‌پذیر بماند", () => {
    expect(buildCanonicalQuery("?page=2")).toBe("?page=2");
    expect(buildCanonicalQuery("?page=38")).toBe("?page=38");
  });

  it("صفحهٔ ۱ حذف می‌شود (URL متعارف بدون page)", () => {
    expect(buildCanonicalQuery("?page=1")).toBe("");
    expect(buildCanonicalQuery("")).toBe("");
  });

  it("فیلتر و sort و جستجو از canonical حذف می‌شوند", () => {
    expect(buildCanonicalQuery("?specialty=x&gender=woman&sort=point&name=a")).toBe("");
  });

  it("page در کنار فیلترها فقط page را نگه می‌دارد", () => {
    expect(buildCanonicalQuery("?specialty=x&page=3")).toBe("?page=3");
  });
});

describe("getEntityCanonical — C1-b", () => {
  it("موجودیت به دامنهٔ شهر خودش canonical می‌شود، نه دامنهٔ سرو‌کننده", () => {
    expect(getEntityCanonical(YASUJ_CITY_ID, "/doctor/abc", "nobat724.com")).toBe(
      "https://yasuj-nobat.ir/doctor/abc"
    );
  });

  it("روی دامنهٔ خودِ شهر self-canonical است", () => {
    expect(getEntityCanonical(YASUJ_CITY_ID, "/clinic/abc", "yasuj-nobat.ir")).toBe(
      "https://yasuj-nobat.ir/clinic/abc"
    );
  });

  it("شهر بدون دامنه → self-canonical (هرگز canonical شکسته)", () => {
    expect(getEntityCanonical(999999, "/doctor/abc", "nobat724.com")).toBe(
      "https://nobat724.com/doctor/abc"
    );
    expect(getEntityCanonical(null, "/doctor/abc", "tehran-nobat.ir")).toBe(
      "https://tehran-nobat.ir/doctor/abc"
    );
  });

  it("رکورد ریشه شهر نیست → self-canonical", () => {
    expect(getEntityCanonical(ROOT_CITY_ID, "/doctor/abc", "yazd-nobat.ir")).toBe(
      "https://yazd-nobat.ir/doctor/abc"
    );
  });
});