/** # 测试 i18n 词典完整性：全部受支持语言必须覆盖全部英文键（不允许缺词回退上线） */
import { describe, expect, test } from "bun:test";
import { en } from "../src/i18n/locales/en";
import { LOCALES } from "../src/i18n/shared";
import "../src/i18n/locales";
// eslint-disable-next-line @typescript-eslint/no-var-requires
import { getDict } from "../src/i18n/index";
import { createT } from "../src/i18n/index";

const enKeys = Object.keys(en) as (keyof typeof en)[];

describe("i18n 词典", () => {
  test("英文词典键数合理（防止误清空）", () => {
    expect(enKeys.length).toBeGreaterThan(60);
  });

  test("每个受支持语言都有词典注册且覆盖全部键", () => {
    for (const l of LOCALES) {
      if (l.code === "en") continue;
      const d = getDict(l.code);
      expect(Object.keys(d).length).toBeGreaterThan(0);
      const missing = enKeys.filter((k) => !(k in d));
      expect(missing).toEqual([]);
    }
  });

  test("插值占位符在各语言中保持一致", () => {
    for (const l of LOCALES) {
      if (l.code === "en") continue;
      const d = getDict(l.code) as Record<string, string>;
      for (const [k, v] of Object.entries(d)) {
        const vars = (en[k as keyof typeof en] as string).match(/\{(\w+)\}/g) ?? [];
        for (const vName of vars) {
          expect(v.includes(vName)).toBe(true);
        }
      }
    }
  });

  test("createT 回退与插值", () => {
    const t = createT("zh-CN");
    expect(t("nav_home")).toBe("首页");
    expect(t("shop_showing", { from: 1, to: 24, total: 100 })).toContain("100");
    // 未注册语言回退英文
    const t2 = createT("xx-unknown");
    expect(t2("nav_home")).toBe("Home");
  });
});