/**
 * PWA 安装性验证脚本
 * 检查：
 *   1. manifest.webmanifest 合法
 *   2. Service Worker 注册成功
 *   3. 图标全部能加载
 *   4. PWA 必需字段（name, icons[192/512], start_url, display, theme_color, background_color）
 *   5. 离线 fallback（/offline 或 navigateFallback 命中）
 */
import puppeteer from 'puppeteer';
import { readFile } from 'node:fs/promises';
import path from 'node:path';
import { fileURLToPath } from 'node:url';

const __dirname = path.dirname(fileURLToPath(import.meta.url));
const ROOT = path.resolve(__dirname, '..');

const URL_TO_TEST = process.env.PWA_URL || 'http://localhost:4173/login';
const CHROME_PATH =
    process.env.CHROME_PATH ||
    '/Users/yabozi/.cache/puppeteer/chrome/mac-148.0.7778.97/chrome-mac-x64/Google Chrome for Testing.app/Contents/MacOS/Google Chrome for Testing';

const checks = [];
let pass = 0;
let fail = 0;
function ok(name, detail) {
    checks.push({ status: '✅', name, detail });
    pass++;
}
function ko(name, detail) {
    checks.push({ status: '❌', name, detail });
    fail++;
}

async function fetchStatus(url) {
    try {
        const r = await fetch(url, { redirect: 'follow' });
        return r.status;
    } catch (e) {
        return 0;
    }
}

async function main() {
    console.log(`🔍 PWA check: ${URL_TO_TEST}\n`);

    // 1. manifest 文件可访问 + 合法 JSON
    const manifestUrl = new URL('/manifest.webmanifest', URL_TO_TEST).toString();
    const manifestStatus = await fetchStatus(manifestUrl);
    if (manifestStatus === 200) {
        ok('manifest 200', manifestUrl);
        const r = await fetch(manifestUrl);
        const m = await r.json();
        const required = ['name', 'short_name', 'start_url', 'display', 'icons'];
        const missing = required.filter((k) => !m[k]);
        if (missing.length === 0) {
            ok('manifest 必备字段', Object.keys(m).join(', '));
        } else {
            ko('manifest 必备字段缺失', missing.join(', '));
        }
        // 图标尺寸
        const sizes = (m.icons || []).map((i) => i.sizes).filter(Boolean);
        const has192 = sizes.some((s) => s.includes('192'));
        const has512 = sizes.some((s) => s.includes('512'));
        const hasMaskable = (m.icons || []).some((i) => i.purpose === 'maskable');
        const hasApple = (m.icons || []).some((i) =>
            (i.src || '').includes('apple-touch')
        );
        if (has192 && has512) ok('icons 192+512', sizes.join(', '));
        else ko('icons 192/512 缺失', sizes.join(', '));
        if (hasMaskable) ok('maskable icon', 'present');
        else ko('maskable icon', 'missing');
        if (hasApple) ok('apple-touch icon', 'present');
        else ko('apple-touch icon', 'missing');
    } else {
        ko('manifest 不可访问', `status=${manifestStatus}, url=${manifestUrl}`);
    }

    // 2. Service Worker 注册
    const browser = await puppeteer.launch({
        executablePath: CHROME_PATH,
        headless: 'new',
        args: [
            '--no-sandbox',
            '--disable-setuid-sandbox',
            '--disable-dev-shm-usage',
            `--user-data-dir=/tmp/lh-cache-pwa-check-${Date.now()}`,
        ],
    });
    const page = await browser.newPage();
    const swLogs = [];
    page.on('console', (m) => {
        const t = m.text();
        if (t.includes('[PWA]') || t.includes('ServiceWorker')) swLogs.push(t);
    });

    await page.goto(URL_TO_TEST, { waitUntil: 'networkidle0', timeout: 30000 });
    // 等几秒给 SW 机会注册
    await new Promise((r) => setTimeout(r, 3000));

    const swInfo = await page.evaluate(async () => {
        if (!('serviceWorker' in navigator)) return { supported: false };
        const regs = await navigator.serviceWorker.getRegistrations();
        return {
            supported: true,
            count: regs.length,
            scopes: regs.map((r) => r.scope),
            active: regs.map((r) => !!r.active),
            scripts: regs.map((r) => r.active && r.active.scriptURL),
        };
    });
    if (swInfo.supported && swInfo.count > 0 && swInfo.active.every(Boolean)) {
        ok('Service Worker 已注册', `scope=${swInfo.scopes.join(',')}`);
    } else if (swInfo.supported && swInfo.count > 0) {
        ko('Service Worker 未激活', JSON.stringify(swInfo));
    } else {
        ko('Service Worker 未注册', 'getRegistrations() 为空');
    }

    // 3. 关键 meta 标签
    const meta = await page.evaluate(() => {
        const get = (sel) => document.querySelector(sel)?.getAttribute('content') || null;
        return {
            themeColor: get('meta[name="theme-color"]'),
            appleCapable: get('meta[name="apple-mobile-web-app-capable"]'),
            appleTitle: get('meta[name="apple-mobile-web-app-title"]'),
            viewport: get('meta[name="viewport"]'),
            manifestLink: !!document.querySelector('link[rel="manifest"]'),
            appleTouchIcon: !!document.querySelector('link[rel="apple-touch-icon"]'),
        };
    });
    if (meta.themeColor) ok('theme-color', meta.themeColor);
    else ko('theme-color', 'missing');
    if (meta.appleCapable === 'yes') ok('apple-mobile-web-app-capable', 'yes');
    else ko('apple-mobile-web-app-capable', meta.appleCapable || 'missing');
    if (meta.manifestLink) ok('manifest link', 'present');
    else ko('manifest link', 'missing');
    if (meta.appleTouchIcon) ok('apple-touch-icon link', 'present');
    else ko('apple-touch-icon link', 'missing');

    // 4. SW 日志确认 offline ready
    const offlineReady = swLogs.some((l) => l.includes('离线缓存就绪') || l.includes('offline'));
    if (offlineReady) ok('PWA offline log', '检测到 offline ready');
    // 离线就绪不是强校验，标 warn 即可
    if (!offlineReady) {
        checks.push({
            status: '⚠️',
            name: 'PWA offline 日志',
            detail: '运行后无离线 ready 日志（可能 SW 还没预缓存完，可忽略）',
        });
    }

    await browser.close();

    // 输出
    for (const c of checks) {
        console.log(`${c.status} ${c.name}${c.detail ? `  — ${c.detail}` : ''}`);
    }
    console.log(`\n总计: ✅ ${pass}  ❌ ${fail}`);
    process.exit(fail > 0 ? 1 : 0);
}

main().catch((e) => {
    console.error('PWA check 失败:', e);
    process.exit(2);
});