${esc(diag.title)}

${summaryLine(counts, kept.length, dropped.length, sim)}

` +\n `` +\n `${\n dropTable(dropped)\n }

相似度	丢弃了什么 / 为什么

` +\n `

换阈值：订阅地址改成 ${base.origin}${base.pathname}?sim=0.35（越低去重越狠）。` +\n `不想看到这条：地址后面加 &diag=0。

`;\n return {\n title:\n `合并诊断 · ${day}（丢弃 ${dropped.length} 条 / 保留 ${kept.length} 条）`,\n html,\n guid:\n `diag-${base.pathname}`, /* no date: one diagnostic per feed forever, updated in place, never accumulates */\n link: `${base.origin}${base.pathname}?sim=${sim}&debug=1`,\n };\n}\n\nfunction buildRss(\n chanTitle: string,\n chanDesc: string,\n items: Item[],\n showTag: boolean,\n diag: ReturnType | null,\n) {\n const parts: string[] = [];\n if (diag) {\n // 排在最新一条之后一分钟 → 置顶。guid 按天固定，一天只新增一条，不会反复未读。\n const newest = items.length ? items[0].date.getTime() : Date.now();\n parts.push(\n `${esc(diag.title)}${esc(diag.link)}` +\n `${esc(diag.guid)}` +\n `${new Date(newest + 60_000).toUTCString()}` +\n `${esc(diag.html)}`,\n );\n }\n for (const it of items) {\n const title = showTag ? `${it.tag} · ${it.title}` : it.title;\n parts.push(\n `${esc(title)}${esc(it.link)}` +\n `${esc(it.guid)}` +\n `${it.date.toUTCString()}` +\n `${esc(it.desc)}`,\n );\n }\n return `\n\n${esc(chanTitle)}\nhttps://www.cnbc.com/\n${esc(chanDesc)}\nen-US\n${new Date().toUTCString()}\n${parts.join(\"\")}\n`;\n}\n\nfunction debugPage(\n chanTitle: string,\n counts: Record,\n kept: Item[],\n dropped: Dropped[],\n sim: number,\n) {\n return `${\n esc(chanTitle)\n } · 诊断\n\n

${esc(chanTitle)} · 合并诊断

\n\n

${summaryLine(counts, kept.length, dropped.length, sim)}

阈值调低去重更狠（可能误杀），调高更保守（可能漏重复）。多个参数用 & 连接，\n只有第一个用 ?：/tech?sim=0.35&debug=1

\n${\n dropTable(dropped)\n }

相似度	丢弃了什么 / 为什么

`;\n}\n\nexport default async function (req: Request): Promise {\n const url = new URL(req.url);\n const sim = Math.min(\n 0.95,\n Math.max(0.2, Number(url.searchParams.get(\"sim\")) || DEFAULT_SIM),\n );\n const wantTag = url.searchParams.get(\"tag\") !== \"0\";\n const wantDiag = url.searchParams.get(\"diag\") !== \"0\";\n const path = url.pathname.replace(/^\\/|\\/$/g, \"\");\n\n const plain = (body: string, status = 200) =>\n new Response(body, {\n status,\n headers: { \"Content-Type\": \"text/plain; charset=utf-8\" },\n });\n\n if (path !== \"\" && !SECTIONS[path]) {\n return plain(\n \"可用地址：\\n / Top News（CNBC + CBS 去重）\\n\" +\n Object.entries(SECTIONS).map(([k, v]) =>\n ` /${k}${\" \".repeat(11 - k.length)}${v.title}`\n )\n .join(\"\\n\") +\n \"\\n\\n参数：?sim= ?tag=0 ?diag=0 ?debug=1\",\n 404,\n );\n }\n\n let chanTitle: string, chanDesc: string, counts: Record;\n let kept: Item[], dropped: Dropped[], showTag: boolean, errors: string[];\n\n if (path === \"\") {\n const got = await collect(TOP);\n ({ counts, errors } = got);\n const r = reduce(got.items, [], sim);\n kept = r.kept;\n dropped = r.dropped;\n chanTitle = \"US Top News（CNBC + CBS 去重）\";\n chanDesc =\n \"CNBC Top News 与 CBS Top News 合并，同一条新闻只保留一份（优先 CNBC 的版本）。\";\n showTag = wantTag; // 两个来源，标来源有意义\n } else {\n const sec = SECTIONS[path];\n const [got, top] = await Promise.all([collect([sec.src]), collect(TOP)]);\n counts = { ...got.counts, \"Top News（参照）\": top.items.length };\n errors = [...got.errors, ...top.errors];\n const r = reduce(got.items, top.items, sim);\n kept = r.kept;\n dropped = r.dropped;\n chanTitle = sec.title;\n chanDesc = \"只保留没有在 Top News 那个 feed 里出现过的条目。\";\n showTag = false; // 单一来源，前缀是废话\n }\n\n if (!kept.length && dropped.length === 0) {\n return plain(\n \"一条都没抓到。把这句话告诉 Claude。\\n\" + errors.join(\"\\n\"),\n 500,\n );\n }\n\n if (url.searchParams.get(\"debug\") === \"1\") {\n return new Response(debugPage(chanTitle, counts, kept, dropped, sim), {\n headers: { \"Content-Type\": \"text/html; charset=utf-8\" },\n });\n }\n\n const diag = wantDiag ? diagEntry(counts, kept, dropped, sim, url) : null;\n return new Response(buildRss(chanTitle, chanDesc, kept, showTag, diag), {\n headers: {\n \"Content-Type\": \"application/rss+xml; charset=utf-8\",\n \"Cache-Control\": \"public, max-age=300\",\n },\n });\n}",[135],"pulls","branches",1,"forks","envVars",{"_150":62,"_152":62},"connections",{"_150":62,"_151":62},"count","unfilledCount","emptyCount",{"_42":134,"_32":135,"_30":56,"_129":-5,"_40":41,"_39":136,"_130":24,"_37":159,"_13":138,"_33":139,"_35":140,"_23":24,"_132":-5,"_156":160,"_26":161},{"_42":128,"_32":27,"_30":31,"_129":-5,"_40":41,"_39":14,"_130":24,"_37":155,"_13":62,"_33":34,"_35":36,"_23":24,"_132":-5,"_156":157,"_26":158},["D",1788491933607],"children",[],[27],["D",1788489864086],[],[135],["D",1788471196775],{"_96":95,"_104":100},{"_96":95,"_97":98,"_99":100,"_18":54,"_101":102,"_103":24},{"_13":85,"_32":86,"_42":41,"_87":43,"_88":-5,"_89":-5,"_90":-5,"_91":-5,"_92":-5,"_93":44,"_94":95},"ctx",{"_78":-5,"_123":199,"_200":201,"_202":203,"_204":24,"_205":24,"_206":24,"_207":58,"_208":-5,"_209":-7,"_210":-7,"_211":62,"_212":24,"_213":24,"_214":-5,"_215":24,"_216":24,"_217":24,"_218":-5},"ENV",{"_170":171,"_172":173,"_174":86,"_175":176,"_177":178,"_179":180,"_181":182,"_183":184,"_185":186,"_187":188,"_189":190,"_191":192,"_193":194,"_195":196,"_197":198},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","5015b8df46402d8bba4f485ecc37aec202b0e06b","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

Diff · v12