/**
 * api.js smoke test
 *
 * 验证 VpsFmt 纯工具函数：OAuth 归一化、倒计时文案、费用文案、徽章样式等。
 * api.js 是 IIFE，会立即创建 window.VpsApi / window.VpsFmt，
 * 用 vm.runInNewContext 在沙箱内加载，注入最小 mock。
 */
import { describe, it, expect, beforeAll } from 'vitest';
import { readFileSync } from 'node:fs';
import { resolve } from 'node:path';
import vm from 'node:vm';

let ctx;

beforeAll(() => {
  const _store = {};
  const localStorage = {
    getItem: (k) => (k in _store ? _store[k] : null),
    setItem: (k, v) => { _store[k] = String(v); },
    removeItem: (k) => { delete _store[k]; },
    clear: () => { for (const k of Object.keys(_store)) delete _store[k]; },
    get length() { return Object.keys(_store).length; },
    key: (i) => Object.keys(_store)[i] ?? null,
  };

  ctx = vm.createContext({
    APP_CONFIG: { appName: 'Test', version: '0.0.0', commit: 'test' },
    window: {},
    localStorage,
    fetch: async () => ({ ok: true, status: 200, json: async () => ({}) }),
    console,
  });
  ctx.window = ctx;

  const code = readFileSync(
    resolve(import.meta.dirname, '..', 'api.js'),
    'utf-8',
  );
  vm.runInContext(code, ctx);
});

/* ---------- VpsApi 基础 ---------- */

describe('VpsApi 初始化', () => {
  it('暴露 get/post/put/del 方法', () => {
    expect(typeof ctx.VpsApi.get).toBe('function');
    expect(typeof ctx.VpsApi.post).toBe('function');
    expect(typeof ctx.VpsApi.put).toBe('function');
    expect(typeof ctx.VpsApi.del).toBe('function');
  });

  it('CFG 来自 window.APP_CONFIG', () => {
    expect(ctx.VpsApi.CFG.appName).toBe('Test');
  });
});

/* ---------- OAuth 归一化 ---------- */

describe('VpsFmt OAuth 函数', () => {
  it('oauthLabel 预设 key 返回中文标签', () => {
    expect(ctx.VpsFmt.oauthLabel('alipay')).toBe('支付宝');
    expect(ctx.VpsFmt.oauthLabel('github')).toBe('GitHub');
    expect(ctx.VpsFmt.oauthLabel('wechat')).toBe('微信');
  });

  it('oauthLabel 未知 key 原样返回', () => {
    expect(ctx.VpsFmt.oauthLabel('custom_provider')).toBe('custom_provider');
    expect(ctx.VpsFmt.oauthLabel('')).toBe('');
    expect(ctx.VpsFmt.oauthLabel(null)).toBe('');
  });

  it('oauthDetail 预设返回「标签（key）」格式', () => {
    expect(ctx.VpsFmt.oauthDetail('alipay')).toBe('支付宝（alipay）');
    expect(ctx.VpsFmt.oauthDetail('github')).toBe('GitHub（github）');
  });

  it('oauthDetail 未知 key 只返回原文', () => {
    expect(ctx.VpsFmt.oauthDetail('my_custom')).toBe('my_custom');
  });

  it('normalizeOauth 小写 key 直通', () => {
    expect(ctx.VpsFmt.normalizeOauth('github')).toBe('github');
    expect(ctx.VpsFmt.normalizeOauth('  GitHub  ')).toBe('github');
  });

  it('normalizeOauth 中文标签归一为 key', () => {
    expect(ctx.VpsFmt.normalizeOauth('支付宝')).toBe('alipay');
    expect(ctx.VpsFmt.normalizeOauth('微信')).toBe('wechat');
  });

  it('normalizeOauth 空值返回空字符串', () => {
    expect(ctx.VpsFmt.normalizeOauth('')).toBe('');
    expect(ctx.VpsFmt.normalizeOauth(null)).toBe('');
  });
});

/* ---------- 倒计时文案 ---------- */

describe('VpsFmt.countdownText', () => {
  it('正数返回「N 天后」', () => {
    expect(ctx.VpsFmt.countdownText(30)).toBe('30 天后');
    expect(ctx.VpsFmt.countdownText(1)).toBe('1 天后');
  });

  it('负数返回「已过期 N 天」', () => {
    expect(ctx.VpsFmt.countdownText(-5)).toBe('已过期 5 天');
  });

  it('零返回「今天到期」', () => {
    expect(ctx.VpsFmt.countdownText(0)).toBe('今天到期');
  });

  it('null/undefined 返回默认占位', () => {
    expect(ctx.VpsFmt.countdownText(null)).toBe('未设到期日');
    expect(ctx.VpsFmt.countdownText(undefined)).toBe('未设到期日');
  });

  it('opts.empty 自定义占位', () => {
    expect(ctx.VpsFmt.countdownText(null, { empty: '—' })).toBe('—');
  });

  it('opts.unit="" 只返回「N 天」', () => {
    expect(ctx.VpsFmt.countdownText(7, { unit: '' })).toBe('7 天');
  });
});

/* ---------- 费用文案 ---------- */

describe('VpsFmt.costText', () => {
  it('零返回「未填」', () => {
    expect(ctx.VpsFmt.costText(0, 'USD')).toBe('未填');
  });

  it('有值有币种拼接', () => {
    expect(ctx.VpsFmt.costText(9.99, 'USD')).toBe('9.99 USD');
  });

  it('有值无币种只返回数字字符串', () => {
    expect(ctx.VpsFmt.costText(100, '')).toBe('100');
    expect(ctx.VpsFmt.costText(50, null)).toBe('50');
  });
});

/* ---------- 到期日样式 ---------- */

describe('VpsFmt 到期日样式函数', () => {
  it('expiryText 按天数区间返回不同样式类', () => {
    expect(ctx.VpsFmt.expiryText(-1)).toContain('red');
    expect(ctx.VpsFmt.expiryText(3)).toContain('red');
    expect(ctx.VpsFmt.expiryText(15)).toContain('amber');
    expect(ctx.VpsFmt.expiryText(60)).toContain('slate');
    expect(ctx.VpsFmt.expiryText(null)).toContain('slate');
  });

  it('expiryBadge 按天数区间返回不同背景色', () => {
    expect(ctx.VpsFmt.expiryBadge(3)).toContain('red');
    expect(ctx.VpsFmt.expiryBadge(15)).toContain('amber');
    expect(ctx.VpsFmt.expiryBadge(60)).toContain('slate');
  });
});

/* ---------- 标签映射表 ---------- */

describe('VpsFmt 标签映射表', () => {
  it('TYPE_LABELS 包含核心资产类型', () => {
    expect(ctx.VpsFmt.TYPE_LABELS.vps).toBe('VPS');
    expect(ctx.VpsFmt.TYPE_LABELS.domain).toBe('域名');
    expect(ctx.VpsFmt.TYPE_LABELS.ai_agent).toBe('AI账号');
  });

  it('STATUS_LABELS 包含全部状态', () => {
    expect(ctx.VpsFmt.STATUS_LABELS.active).toBe('使用中');
    expect(ctx.VpsFmt.STATUS_LABELS.expired).toBe('已过期');
  });

  it('LOGIN_TYPE_LABELS 包含登录方式', () => {
    expect(ctx.VpsFmt.LOGIN_TYPE_LABELS.password).toBe('密码登录');
    expect(ctx.VpsFmt.LOGIN_TYPE_LABELS.oauth).toBe('授权登录');
  });

  it('OAUTH_PRESETS 是非空数组', () => {
    expect(Array.isArray(ctx.VpsFmt.OAUTH_PRESETS)).toBe(true);
    expect(ctx.VpsFmt.OAUTH_PRESETS.length).toBeGreaterThan(10);
  });
});

/* ---------- 徽章函数兜底 ---------- */

describe('VpsFmt 徽章函数兜底', () => {
  it('typeBadge 未知类型返回默认样式', () => {
    expect(ctx.VpsFmt.typeBadge('nonexistent')).toContain('slate');
  });

  it('statusBadge 未知状态返回默认样式', () => {
    expect(ctx.VpsFmt.statusBadge('unknown_status')).toContain('slate');
  });

  it('loginTypeBadge 未知类型返回默认样式', () => {
    expect(ctx.VpsFmt.loginTypeBadge('xxx')).toContain('slate');
  });

  it('checkBadge 各状态返回对应颜色', () => {
    expect(ctx.VpsFmt.checkBadge('pass')).toContain('emerald');
    expect(ctx.VpsFmt.checkBadge('warn')).toContain('amber');
    expect(ctx.VpsFmt.checkBadge('fail')).toContain('red');
  });
});