import fs from 'node:fs/promises';
import path from 'node:path';
import * as cheerio from 'cheerio';
import { sites, languages } from './sites.mjs';
import { root, cacheRoot, jsonFile, write, writeJSON, canonical, routeOf, blockedPath, relative, escapeHTML as E } from './lib.mjs';
import { Assets } from './assets.mjs';
import { prepareTranslations, localize } from './translate.mjs';
import { addFonts } from './fonts.mjs';

const args=process.argv.slice(2);
const selected=sites.filter(s=>!args.some(a=>!a.startsWith('--'))||args.includes(s.id));
const date=t=>new Date(t*1000).toISOString().slice(0,10);
const detail=(item,type)=>item.detail?.[type]||item.detail||item;
const jskTelegram={url:'https://t.me/JSKCDN999',handle:'@JSKCDN999'};

for(const site of selected){
  const folder=path.join(root,site.id);
  const sourceFolder=path.join(cacheRoot,'sites',site.id);
  const data=await jsonFile(path.join(sourceFolder,'data.json'));
  const captured=await jsonFile(path.join(sourceFolder,'pages.json'),[]);
  if(!captured.some(p=>p.file==='index.html'))throw new Error(`Capture ${site.id} first`);
  const sourceReport=await jsonFile(path.join(sourceFolder,'capture-report.json'),{});
  const asset=new Assets(site);
  const records=new Map(captured.map(p=>[p.file,p]));
  const routes=new Map(captured.map(p=>[canonical(p.url,site),p.file]));
  const template=captured.find(p=>p.file==='document.html')||captured.find(p=>p.file==='index.html');
  function shell(file,title,body,url){
    const $=cheerio.load(template.html);const header=$('header').first().prop('outerHTML')||'';const footer=$('footer').first().prop('outerHTML')||$('body > .uk-section-primary').map((_,el)=>$(el).prop('outerHTML')).get().join('');
    $('body').empty().append(header).append(`<main class="static-main">${body}</main>`).append(footer);
    $('title').text(`${title} - ${site.name}`);
    const entry={file,url:url||site.origin+'/'+file,html:$.html(),title};records.set(file,entry);routes.set(canonical(entry.url,site),file);return entry;
  }
  function list(items,type){const short=type==='announcement'?'announce':type;return `<ul class="static-list">${items.map(item=>`<li><a href="/${short}/${item.id}.html">${E(item.title)}</a><time datetime="${date(item.create_time)}">${date(item.create_time)}</time></li>`).join('')||'<li class="static-empty">暂无相关内容</li>'}</ul>`;}
  for(const type of ['news','announcement']){
    const short=type==='announcement'?'announce':type;const title=type==='announcement'?'官方公告':'新闻资讯';const items=data.contents[type];
    shell(`${short}.html`,title,`<h1>${title}</h1>${list(items,type)}`);
    for(const item of items){
      const article=detail(item,type);const content=cheerio.load(article.content||'');
      shell(`${short}/${item.id}.html`,article.title||item.title,`<article class="static-article"><h1>${E(article.title||item.title)}</h1><div class="static-date">${date(item.create_time)}</div>${content('body').html()||''}<a class="static-back" href="/${short}.html">返回列表</a></article>`,`${site.origin}/${short}-details.html?id=${item.id}`);
    }
    for(const category of data.api[`/${type}/type`]?.list||[]){
      const filtered=items.filter(item=>String(detail(item,type)[`addon_idcsmart_${type}_type_id`])===String(category.id));
      const pages=Math.max(1,Math.ceil(filtered.length/10));
      for(let n=1;n<=pages;n++){
        const file=`${short}-classify-id-${category.id}${n>1?'-page-'+n:''}.html`;
        const pagination=pages>1?`<nav class="static-pagination" aria-label="分页">${Array.from({length:pages},(_,i)=>i+1===n?`<span aria-current="page">${i+1}</span>`:`<a href="/${short}-classify-id-${category.id}${i?'-page-'+(i+1):''}.html">${i+1}</a>`).join('')}</nav>`:'';
        shell(file,category.name,`<h1>${E(category.name)}</h1>${list(filtered.slice((n-1)*10,n*10),type)}${pagination}`,`${site.origin}/${short}-classify.html?id=${category.id}${n>1?'&page='+n:''}`);
      }
    }
  }
  for(const item of data.contents.help){
    const article=detail(item,'help');const content=cheerio.load(article.content||'');
    content('span').each((_,el)=>{const $el=content(el);if(!$el.find('img,strong,b,i,em,a').length)$el.replaceWith($el.contents());});
    shell(`docs/${item.id}.html`,article.title||item.title,`<article class="static-article"><h1>${E(article.title||item.title)}</h1>${content('body').html()||''}<a class="static-back" href="/document.html">返回列表</a></article>`,`${site.origin}/plugin/26/helpTotal.htm?id=${item.id}`);
  }
  const docGroups=(data.api['/help']?.list||[]).map(group=>`<section><h2>${E(group.name)}</h2><ul class="static-list">${data.contents.help.filter(x=>String(x.categoryId)===String(group.id)).map(item=>`<li><a href="/docs/${item.id}.html">${E(item.title)}</a></li>`).join('')||'<li class="static-empty">暂无相关内容</li>'}</ul></section>`).join('');
  shell('document.html','文档中心',`<h1>文档中心</h1><div class="input-search static-search"><input id="document-input" type="search" placeholder="搜索文档"><button class="search-btn" type="button">搜索</button></div>${docGroups}`);
  shell('document-result.html','文档搜索',`<h1>文档搜索</h1><form class="static-search" id="static-search-form"><input id="static-search-query" name="search" type="search" placeholder="搜索文档"><button type="submit">搜索</button></form><ul class="static-list" id="static-search-results"></ul>`);

  if(site.id==='jskcloud'){
    const contact=records.get('contact.html');
    const $=cheerio.load(contact.html);
    const telegramImage=$('.aside-tools .tools-item img').first().attr('src');
    const documentImage=$('.support-box').filter((_,el)=>$(el).text().includes('自助文档')).find('img').attr('src');
    $('.server-banner-desc').text('我们关怀每一位客户，致力于提供更高品质的服务。无论是产品咨询还是技术问题，欢迎通过 Telegram 联系 JSKCloud。');
    $('.contact-support,.product-help').each((_,el)=>{
      const previous=el.prev;
      if(previous?.type==='text'&&!previous.data.trim())$(previous).remove();
      $(el).remove();
    });
    $('.server-banner2').after(`<main class="static-contact">
      <div class="static-contact-grid">
        <section class="static-contact-method" aria-labelledby="contact-telegram-title">
          <img class="static-contact-icon" src="${E(telegramImage)}" alt="" width="56" height="56">
          <h2 id="contact-telegram-title">Telegram</h2>
          <a class="static-contact-handle" href="${jskTelegram.url}" target="_blank" rel="noopener noreferrer">${jskTelegram.handle}</a>
          <p>产品选型、配置咨询与技术支持，请通过 Telegram 与我们沟通。</p>
          <a class="static-contact-action" href="${jskTelegram.url}" target="_blank" rel="noopener noreferrer">联系 JSKCloud</a>
        </section>
        <section class="static-contact-method" aria-labelledby="contact-document-title">
          <img class="static-contact-icon" src="${E(documentImage)}" alt="" width="56" height="56">
          <h2 id="contact-document-title">文档中心</h2>
          <p>查阅产品说明、使用指南与常见问题，快速获取所需信息。</p>
          <a class="static-contact-action static-contact-action-secondary" href="/document.html">查看帮助文档</a>
        </section>
      </div>
      <p class="static-contact-note">咨询时请说明所需产品、部署地区与配置，或描述遇到的问题，方便我们为您提供帮助。</p>
    </main>`);
    records.set(contact.file,{...contact,html:$.html()});
  }

  const product=data.api['/product/4']?.product;
  const options=data.api['/product/4/mf_cloud/order_page'];
  if(!product||!options)throw new Error(`${site.id}: public cloud product data missing`);
  const values=(items,unit='')=>(items||[]).map(x=>x.type==='step'?`${x.min_value}–${x.max_value}${unit}`:x.value+unit).sort((a,b)=>parseFloat(a)-parseFloat(b)).join(' / ');
  const regions=options.data_center.map(country=>country.city.map(city=>city.area.map(area=>`<tr data-filter-row><td>${E(country.name)} / ${E(city.name)}</td><td>${area.line.map(line=>E(line.name)).join(' / ')}</td></tr>`).join('')).join('')).join('');
  const currency=data.api['/common']?.currency_code||'';
  const price=product.price!==undefined?`<span data-no-translate>${E(currency)} ${E(product.price)}</span> / <span>${E(product.cycle)}</span>`:'联系咨询';
  shell('cloud.html',product.name,`<h1>${E(product.name)}</h1><h2>公开起售价</h2><p class="static-price" data-no-translate>${price}</p><h2>可选配置</h2><div class="static-table-wrap"><table class="static-table"><tbody><tr><th>CPU（核）</th><td data-no-translate>${E(values(options.cpu))}</td></tr><tr><th>内存</th><td data-no-translate>${E(values(options.memory,options.config.memory_unit))}</td></tr><tr><th>系统盘</th><td data-no-translate>${E(values(options.system_disk,'GB'))}</td></tr><tr><th>数据盘</th><td data-no-translate>${E(values(options.data_disk,'GB'))}</td></tr></tbody></table></div><h2>地区与线路</h2><div class="static-search"><input type="search" data-local-filter placeholder="筛选地区或线路"></div><div class="static-table-wrap"><table class="static-table"><thead><tr><th>地区</th><th>线路</th></tr></thead><tbody>${regions}</tbody></table></div><p><a href="/contact.html">联系我们</a></p>`);
  routes.set(canonical('/cart/goods.htm?id=4',site),'cloud.html');
  const prepared=[];
  for(const page of records.values()){
    const $=cheerio.load(page.html);
    if(site.id==='jskcloud'){
      $('footer .footer-nav-right .footer-nav-box').html(`<div class="footer-nav-head">联系我们</div><div class="footer-nav-cont"><div class="footer-nav-item">JSKCloud.net</div><div class="footer-nav-item mt-20"><a class="link-hover" href="${jskTelegram.url}" target="_blank">Telegram ${jskTelegram.handle}</a></div></div>`);
    }
    function stripComments(node){for(const child of [...node.children||[]]){if(child.type==='comment')$(child).remove();else stripComments(child);}}
    stripComments($.root()[0]);
    $('script').each((_,el)=>{const src=$(el).attr('src')||'';if(!/\/vender\/(?:jQuery|bootstrap|swiper|uikit)\//i.test(src))$(el).remove();});
    $('base,noscript,iframe,object,embed,.no-login,.login-in,.login-menu,.header-clientarea,#loginBtn,#registBtn,#accountBtn,#financeBtn,#ticketBtn,#logout,.register-advert,.swiper-slide-duplicate').remove();
    $('.js-buy,.add-cart').each((_,el)=>{const availability=$(el).find('.qty').text().trim();if(availability)$(el).replaceWith($('<span class="static-availability"></span>').text(availability));else $(el).remove();});
    $('html').removeAttr('addons_js').removeAttr('id');
    $('.static-price').removeAttr('data-no-translate');
    $('*').each((_,el)=>{
      for(const key of Object.keys(el.attribs||{}))if(/^on/i.test(key))$(el).removeAttr(key);
      if($(el).attr('uk-scrollspy')){$(el).removeAttr('uk-scrollspy');const style=$(el).attr('style');if(style)$(el).attr('style',style.replace(/(?:visibility\s*:\s*hidden|opacity\s*:\s*0)\s*;?/gi,''));}
    });
    $('a[href]').each((_,el)=>{
      const a=$(el);const href=(a.attr('href')||'').trim();
      try{const u=new URL(href,page.url);if(site.hosts.includes(u.hostname)&&blockedPath(u.pathname)&&!/^\/cart\/goods\.htm$/.test(u.pathname)){if(a.closest('li').length)a.closest('li').remove();else a.remove();}}
      catch{/* Relative fragment links need no normalization here. */}
      if(/^mailto:\?@|^https?:\/\/t\.me\/\?/.test(href))a.remove();
    });
    $('a,button,.btn,.buy,.add-cart').each((_,el)=>{const text=$(el).text().trim();if(/^(?:立即购买|立即开通|立即创建|立即注册|免费试用|注册|登录|会员中心|控制台|Buy\s*now|Sign\s*up|Log\s*in|Client\s*Area|Create\s*now)$/i.test(text))$(el).remove();});
    $('form').not('#static-search-form').each((_,el)=>$(el).replaceWith($(el).contents()));
    $('a[href=""],a[href="javascript:;"],a[href="javascript:void(0)"]').each((_,el)=>{$(el).attr('href','#');});
    if(page.file==='index.html'){
      for(const [selector,type] of [['#newsList','news'],['#announceList','announcement']]){
        $(selector).html(data.contents[type].slice(0,5).map(item=>`<div class="news-item"><a href="/${type==='announcement'?'announce':'news'}/${item.id}.html"><span class="news-text link-hover">${E(item.title)}</span><span class="news-time">${date(item.create_time)}</span></a></div>`).join(''));
      }
    }
    $('header .uk-parent').each((_,el)=>{const children=$(el).find('.uk-navbar-dropdown a');if($(el).find('.uk-navbar-dropdown').length&&!children.length)$(el).remove();});
    $('img').each((_,el)=>{const img=$(el);if(!img.attr('src')&&!img.attr('data-src')&&!img.attr('srcset'))img.remove();});
    prepared.push({...page,$,html:$.html()});
  }

  await write(path.join(folder,'assets','site.js'),await fs.readFile(path.join(root,'scripts','static','site.js')));
  await write(path.join(folder,'assets','site.css'),await fs.readFile(path.join(root,'scripts','static','site.css')));
  const variants=args.includes('--base-only')?['zh-cn']:languages;
  if(!args.includes('--base-only'))await prepareTranslations(prepared.map(p=>p.$));
  const output=[];
  for(const page of prepared){
    for(const language of variants){
      const targets=[`${language}/${page.file}`];if(language===site.defaultLanguage||args.includes('--base-only'))targets.push(page.file);
      for(const file of targets){
        const $=cheerio.load(page.html);await localize($,language);
        $('html').attr('lang',language==='en'?'en':language==='zh-hk'?'zh-Hant':'zh-Hans');$('body').attr('data-static-site',site.id);
        $('a[href]').each((_,el)=>{
          const a=$(el);const value=a.attr('href')?.trim();if(!value||/^(?:#|mailto:|tel:|javascript:|data:)/i.test(value))return;
          let u;try{u=new URL(value,page.url);}catch{return;}
          if(!site.hosts.includes(u.hostname)){a.attr('href',value.trim());if(a.attr('target')==='_blank')a.attr('rel','noopener noreferrer');return;}
          const key=canonical(u.href,site);let target=routes.get(key);const mapped=routeOf(u.href,site);if(!target&&records.has(mapped))target=mapped;
          if(!target){a.replaceWith(a.contents());return;}
          a.attr('href',relative(file,`${language}/${target}`)+u.hash).removeAttr('target');
        });
        const labels={'zh-cn':'简体中文','zh-hk':'繁體中文','en':'English'};
        $('.language-option').each((_,el)=>{const a=$(el);const code=({'en-us':'en','zh':'zh-cn','ftzh':'zh-hk'})[a.attr('data-lang')]||a.attr('data-lang');if(!languages.includes(code))return;const link=$('<a></a>').attr('class',a.attr('class')||'language-option').attr('data-lang',code).attr('href',relative(file,`${code}/${page.file}`)).attr('lang',code).attr('hreflang',code);if(language===code)link.attr('aria-current','true');link.text(labels[code]);a.replaceWith(link);});
        $('.language-code,.current-lang-label').text(labels[language]);
        $('meta[http-equiv="Content-Language"]').attr('content',language);$('link[rel="canonical"],link[rel="alternate"][hreflang]').remove();
        $('head').append(`<link rel="canonical" href="${relative(file,`${language}/${page.file}`)}">`);
        for(const lang of languages)$('head').append(`<link rel="alternate" hreflang="${lang==='zh-hk'?'zh-Hant':lang==='zh-cn'?'zh-Hans':'en'}" href="${relative(file,`${lang}/${page.file}`)}">`);
        for(const [selector,attr,hint] of [['img','src',''],['source','src',''],['video','src',''],['video','poster',''],['audio','src',''],['script[src]','src','.js'],['link[rel="stylesheet"]','href','.css'],['link[rel="icon"],link[rel="shortcut icon"]','href','']]){
          $(selector).each((_,el)=>{const value=$(el).attr(attr);if(!value)return;const target=asset.ensure(value,page.url,hint);if(target)$(el).attr(attr,target.startsWith('data:')?target:relative(file,target));});
        }
        $('[srcset]').each((_,el)=>{const value=$(el).attr('srcset');if(value.startsWith('data:'))return;$(el).attr('srcset',value.split(',').map(part=>{const [url,...size]=part.trim().split(/\s+/);const target=asset.ensure(url,page.url);return [relative(file,target),...size].join(' ');}).join(', '));});
        $('[data-src]').each((_,el)=>{const value=$(el).attr('data-src');if(!value||value.startsWith('#'))return;const target=asset.ensure(value,page.url);if(target)$(el).attr('data-src',target.startsWith('data:')?target:relative(file,target));});
        $('style').each((_,el)=>$(el).text(asset.css($(el).text(),page.url,file)));
        $('[style]').each((_,el)=>$(el).attr('style',asset.value($(el).attr('style'),page.url,file)));
        $('link[rel="preconnect"],link[rel="dns-prefetch"],link[rel="prefetch"],link[rel="preload"]').remove();
        $('head').append(`<link rel="stylesheet" href="${relative(file,'assets/site.css')}">`);
        $('#document-input').attr('data-results',relative(file,`${language}/document-result.html`));
        if(page.file==='document-result.html'){
          const searchItems=[];
          for(const item of data.contents.help){const source=prepared.find(p=>p.file===`docs/${item.id}.html`);const t=cheerio.load(source.html);await localize(t,language);searchItems.push({title:t('.static-article h1').text(),text:t('.static-article').text(),href:relative(file,`${language}/docs/${item.id}.html`)});}
          const searchData={items:searchItems,empty:language==='en'?'No results found.':language==='zh-hk'?'未找到相關內容':'未找到相关内容'};
          $('body').append(`<script id="static-search-data" type="application/json">${JSON.stringify(searchData).replace(/</g,'\\u003c')}</script>`);
        }
        $('body').append(`<script src="${relative(file,'assets/site.js')}" defer></script>`);
        await write(path.join(folder,file),$.html());output.push({file,language,source:page.url,title:$('title').text()});
      }
    }
    console.log(`${site.id}: generated ${page.file} (${variants.length} languages)`);
  }
  await addFonts(asset,site,output);
  await asset.settle();
  const missingFonts=[...asset.records.values()].filter(entry=>entry.error&&/^https?:/.test(entry.url)&&/fonts\.googleapis\.com|fonts\.gstatic\.com/.test(new URL(entry.url).hostname));
  if(missingFonts.length)throw new Error(`${site.id}: required offline fonts unavailable: ${missingFonts.map(entry=>entry.file).join(', ')}`);
  await asset.prune(output.map(item=>item.file));
  await writeJSON(path.join(folder,'site-manifest.json'),{site:site.id,origin:site.origin,capturedAt:data.capturedAt,generatedAt:new Date().toISOString(),defaultLanguage:site.defaultLanguage,languages:variants,pages:output,sourceFailures:sourceReport.failures||[],assetFailures:asset.failures,sourceMap:Object.fromEntries(routes)});
  console.log(`${site.id}: ${output.length} HTML files, ${asset.records.size} resources, ${asset.failures.length} resource failures`);
}