评论加载失败改为清晰提示：接管 Artalk 错误层，按服务端错误码给读者人话文案+可展开技术详情
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zqlit committed
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@@ -1,3 +1,176 @@
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// ============================================================================
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// 评论加载失败 —— 给读者看的清晰提示
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//
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// Artalk 自带的错误层只会写「Failed to load comments / TypeError: Failed to fetch」，
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// 既没说原因也没给下一步。服务端现在已经会返回结构化的错误码
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// （见 artalk-cf/src/lib/errors.ts：d1_quota / d1_unavailable / timeout / ...），
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// 所以这里把它换成一句人话 + 可展开的技术详情（留着给站长排查）。
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// ============================================================================
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(function () {
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if (window.__atkErrGuard) return; // PJAX 会重复执行本文件，只装一次
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window.__atkErrGuard = true;
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var last = null; // 最近一次 /api/v2 失败：{ status, code, msg, detail, at }
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var INFO = {
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d1_quota: { ic: '😴', title: '评论暂时加载不出来', desc: '数据库今日读取额度已用尽，北京时间明早 8:00 自动恢复。你可以先看看文章，稍后再来～' },
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d1_unavailable: { ic: '🛠️', title: '评论服务正在维护', desc: '数据库连接异常，我们已经在处理，请稍后再试。' },
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timeout: { ic: '🐢', title: '评论服务响应有点慢', desc: '这次请求超时了，稍后再试一次。' },
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unavailable: { ic: '📡', title: '评论服务暂时不可用', desc: '服务或网络有点问题，请稍后再试。' },
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network: { ic: '📡', title: '网络好像不太稳定', desc: '评论没能加载出来，检查一下网络再点重试。' },
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internal: { ic: '⚠️', title: '评论暂时加载不出来', desc: '服务出了点小状况，请稍后再试。' }
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};
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// ── 1) 记录 API 失败原因。只读不改：包装层原样返回上游响应，
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// 失败时顺带 clone 一份读 body（clone 不影响 Artalk 自己读）。
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var origFetch = window.fetch;
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if (typeof origFetch === 'function') {
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window.fetch = function (input) {
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var url = typeof input === 'string' ? input : (input && input.url) || '';
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var p = origFetch.apply(this, arguments);
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if (String(url).indexOf('/api/v2/') === -1) return p;
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return p.then(function (res) {
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if (res && res.ok === false) {
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try {
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res.clone().json().then(function (d) {
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last = {
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status: res.status,
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code: (d && d.code) || '',
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msg: (d && d.msg) || '',
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detail: (d && d.detail) || '',
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at: Date.now()
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};
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}).catch(function () {
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last = { status: res.status, code: '', msg: '', detail: 'HTTP ' + res.status, at: Date.now() };
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});
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} catch (e) { /* clone 不支持就放弃记录，不影响请求 */ }
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}
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return res;
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}).catch(function (e) {
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last = { status: 0, code: 'network', msg: '', detail: (e && e.message) || 'network error', at: Date.now() };
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throw e; // 原样抛回，Artalk 自己的重试逻辑不受影响
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});
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};
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}
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function esc(x) {
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return String(x == null ? '' : x)
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.replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>');
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}
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function injectCss() {
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if (document.getElementById('atk-err-css')) return;
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var st = document.createElement('style');
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st.id = 'atk-err-css';
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st.textContent =
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'.atk-error-layer{padding:0!important;background:transparent!important}' +
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'.atk-err-card{display:flex;gap:12px;align-items:flex-start;padding:16px 18px;box-sizing:border-box;' +
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'border:1px solid var(--border-main,#eee);border-radius:10px;background:var(--bg-card,#fff);' +
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'animation:atkErrIn .35s cubic-bezier(.22,1,.36,1)}' +
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'@keyframes atkErrIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}' +
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'.atk-err-ic{flex:none;font-size:22px;line-height:1.2}' +
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'.atk-err-body{flex:1;min-width:0}' +
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'.atk-err-t{font-size:14px;font-weight:600;color:var(--text-main,#333);margin-bottom:4px}' +
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'.atk-err-d{font-size:13px;line-height:1.7;color:var(--text-desc,#777);word-break:break-word}' +
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'.atk-err-acts{display:flex;align-items:center;gap:10px;margin-top:10px;font-size:13px}' +
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'.atk-err-retry{display:inline-flex;align-items:center;padding:5px 14px;border-radius:5px;' +
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'background:var(--theme-main-20,rgba(7,193,96,.2));color:var(--theme-main,#07c160);' +
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'font-weight:600;cursor:pointer;transition:background .2s,transform .2s;user-select:none}' +
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'.atk-err-retry:hover{background:var(--theme-main-30,rgba(7,193,96,.3))}' +
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'.atk-err-retry:active{transform:scale(.97)}' +
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'.atk-err-det{margin-top:10px;font-size:12px;color:var(--text-muted,#999)}' +
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'.atk-err-det>summary{cursor:pointer;outline:none;user-select:none}' +
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'.atk-err-det pre{margin:8px 0 0;padding:8px 10px;border-radius:6px;background:rgba(127,127,127,.08);' +
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'white-space:pre-wrap;word-break:break-all;font-size:11px;line-height:1.6;max-height:150px;overflow:auto}' +
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'[data-theme="dark"] .atk-err-card{border-color:rgba(255,255,255,.14)}' +
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'@media (max-width:640px){.atk-err-card{padding:13px 14px;gap:8px}.atk-err-ic{font-size:18px}' +
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'.atk-err-t{font-size:13.5px}.atk-err-d{font-size:12.5px}}';
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document.head.appendChild(st);
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}
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function rewrite(layer) {
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if (!layer) return;
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var raw = '';
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var em = layer.querySelector('.error-message');
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if (em) raw = (em.innerText || em.textContent || '').trim();
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var prev = layer.querySelector('.atk-err-card');
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if (prev && prev.getAttribute('data-raw') === raw) return; // 内容没变，不重复渲染
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// 优先用结构化错误码；没有就按「网络层失败」处理
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var fresh = last && (Date.now() - last.at < 30000) ? last : null;
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var code = (fresh && fresh.code) || (/failed to fetch|network ?error|load failed/i.test(raw) ? 'network' : 'internal');
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var info = INFO[code] || INFO.internal;
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// 服务端文案是给「直接调 API 的人」写的，自带一句"评论服务暂时不可用："，
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// 放到卡片里会和标题重复，这里去掉冗余前缀
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var desc = fresh && fresh.msg
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? fresh.msg.replace(/^评论服务暂时不可用(?:[（(][^）)]*[）)])?[:：]\s*/, '')
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: info.desc;
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var detail = (fresh && fresh.detail) || raw;
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// 原始「重试」节点：Vue 会整层重建，所以每次重新找；
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// 若本层已重写过，就从我们自己卡片里把它取回来（移动 DOM 保留已绑事件）
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var retry = prev ? prev.querySelector('.atk-err-retry') : null;
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if (!retry) {
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var box = layer.querySelector('.atk-error-text span');
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if (box) {
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box.querySelectorAll('span').forEach(function (sp) {
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if (!retry && /(重试|重新|retry)/i.test(sp.textContent || '')) retry = sp;
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});
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}
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}
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var admin = layer.querySelector('[atk-only-admin-show]');
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injectCss();
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var card = document.createElement('div');
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card.className = 'atk-err-card';
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card.setAttribute('data-raw', raw);
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card.innerHTML =
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'<span class="atk-err-ic">' + info.ic + '</span>' +
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'<div class="atk-err-body">' +
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'<div class="atk-err-t">' + esc(info.title) + '</div>' +
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'<div class="atk-err-d">' + esc(desc) + '</div>' +
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'<div class="atk-err-acts"></div>' +
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(detail ? '<details class="atk-err-det"><summary>技术详情（给站长排查用）</summary><pre>' +
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esc((code ? '[' + code + '] ' : '') + detail) + '</pre></details>' : '') +
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'</div>';
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layer.textContent = '';
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layer.appendChild(card);
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var acts = card.querySelector('.atk-err-acts');
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if (retry) {
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retry.textContent = '重新加载';
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retry.removeAttribute('style');
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retry.className = 'atk-err-retry';
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acts.appendChild(retry); // 移动节点 → 原点击事件保留
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} else {
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var b = document.createElement('span');
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b.className = 'atk-err-retry';
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b.textContent = '重新加载';
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b.onclick = function () { location.reload(); };
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acts.appendChild(b);
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}
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if (admin && admin.offsetParent !== null) acts.appendChild(admin);
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}
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function scan() {
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var layers = document.querySelectorAll('.atk-error-layer');
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for (var i = 0; i < layers.length; i++) rewrite(layers[i]);
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}
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function boot() {
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scan();
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if (!document.body) { setTimeout(boot, 300); return; }
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// 错误层是 Artalk 异步渲染出来的，用观察器盯着；PJAX 重建也能命中
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new MutationObserver(function () { scan(); }).observe(document.body, { childList: true, subtree: true });
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}
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if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', boot);
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else boot();
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})();
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// Global Artalk Initialization Function (Supports PJAX)
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// ── 持久化 artalkInitCount (跨 PJAX 切换保留) ──
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