import test from "node:test";
import assert from "node:assert/strict";
import { appDownloadURL } from "../src/lib/app-download";
import { createContext } from "../src/server/context";
import { loadSharedData } from "../src/server/services/shared";

test("download destination keeps the primary address ahead of the official fallback", () => {
  assert.equal(appDownloadURL({ appAddr: " https://downloads.example/app?channel=web ", officialAppAddr: "https://official.example/app" }), "https://downloads.example/app?channel=web");
  assert.equal(appDownloadURL({ config: { appAddr: "https://downloads.example/config" }, newAddressInfo: { appAddr: "https://downloads.example/new" } }), "https://downloads.example/config");
});

test("empty config fields cannot erase valid address data or its official fallback", () => {
  assert.equal(appDownloadURL({ appAddr: "", config: { appAddr: " " }, newAddressInfo: { appAddr: "https://downloads.example/new" }, officialAppAddr: "https://official.example/app" }), "https://downloads.example/new");
  assert.equal(appDownloadURL({ appAddr: " ", config: { officialAppAddr: " https://official.example/app " } }), "https://official.example/app");
  assert.equal(appDownloadURL({ newAddressInfo: { officialAppAddr: "https://official.example/new" } }), "https://official.example/new");
  assert.equal(appDownloadURL({ AppAddr: "https://downloads.example/legacy" }), "https://downloads.example/legacy");
});

test("missing download configuration stays empty rather than inventing a QR destination", () => {
  for (const value of [undefined, null, "https://downloads.example/", {}, { appAddr: " ", officialAppAddr: "" }, { appAddr: 123, config: null, newAddressInfo: { officialAppAddr: false } }]) {
    assert.equal(appDownloadURL(value), "");
  }
});

test("the installation dialog receives the same primary or official destination as the QR", async () => {
  for (const appConfig of [
    { appAddr: "https://downloads.example/app", officialAppAddr: "https://official.example/app" },
    { appAddr: "", officialAppAddr: "https://official.example/app" },
    { config: { appAddr: "" }, newAddressInfo: { appAddr: "https://downloads.example/new" } },
    { appAddr: "", officialAppAddr: "" },
  ]) {
    const ctx = createContext(new Request("http://site.test/"));
    const data = await loadSharedData(ctx, {
      appConfig, categoryList: [{ name: "首页", urlValue: "/", categoryType: 1 }],
      themeList: [], homeConfigData: [], searchTrends: [],
    });
    assert.equal(data.installGuide.fallbackURL, appDownloadURL(appConfig) || "/app/download/");
  }
});