[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_168":169,"_170":171},"routes/_app.x.$handle.$name",{"_100":99,"_37":48,"_108":90,"_32":102,"_13":14,"_109":-5,"_11":110,"_111":112,"_113":114,"_115":116,"_117":118,"_26":-5,"_119":-5,"_120":-5,"_121":30,"_122":123,"_124":62,"_125":-5,"_126":-5,"_127":128},"routes/_app.x.$handle.$name.branch.$branch.version.$version.diff",{"_11":12,"_13":14,"_15":16,"_17":18,"_19":-5},"project",{"_46":47,"_37":48,"_41":49,"_50":-5,"_51":30,"_52":53,"_54":53,"_55":56,"_57":-5,"_19":58,"_59":60,"_61":62,"_63":-5,"_64":-5,"_65":66,"_67":68,"_69":-5,"_70":-5,"_71":-5,"_72":-5,"_73":74,"_75":74,"_76":77,"_78":77,"_79":77,"_80":74,"_81":74,"_82":83,"_84":85,"_86":87,"_88":30},"version",2,"changes",[25],"aiChatInfo",{"_20":21,"_22":-5,"_23":-5,"_24":-5},"userId","aiChatMessageId","cb678a37-8018-40ef-82e0-9d7dc9d3dfad","aiChatThreadId","aiChatThreadUserId","aiChatThreadTitle",{"_26":27,"_28":-7,"_29":30,"_31":30,"_32":33,"_34":33},"file",{"_35":36,"_37":33,"_38":26,"_39":40,"_41":42,"_43":14,"_44":45,"_29":30},"previous","deleted",false,"deletedHere","path","index.html","latestPath","fileId","993cb2e8-8692-11f1-9551-1607ee4eb77e","name","fileType","content","\n\n\n \n \n YouTube Summarizer\n \n\n\n

▶ YouTube Summarizer

Paste any YouTube URL to get an instant summary

\n \n \n

\n \n\n \n\n\n","createdAt",["D",1784809961893],"branchVersion","branchId","78c99bb5-504a-49fd-b685-d0efab236252","id","124890cd-113d-4a60-883a-f311f71a0dc4","youtube-summarizer",["D",1784809922217],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","Summarize YouTube videos by pasting a URL","imageUrl","6712f1b9-addd-4fdf-9882-8114d8e4d364","pinnedFileId","99361c8a-8692-11f1-abda-1607ee4eb77e","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",0,"orgId","019f8ef5-558c-7399-90c3-20fd98a5ef37","tursoName","tursoHostname","tursoMeasuredAt","pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_100":99,"_107":102},"org",{"_100":99,"_101":102,"_103":102,"_19":58,"_104":105,"_106":30},"branch",{"_13":89,"_37":90,"_46":45,"_91":47,"_92":-5,"_93":-5,"_94":-5,"_95":-5,"_96":-5,"_97":48,"_98":99},"isOwned",7,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","MarkyMark00","handle","displayName","","avatar","tier","free","canRestrictVals","profileImageUrl","branchName","adoptOrgId",{"_46":47,"_37":48,"_41":164,"_50":-5,"_51":30,"_52":53,"_54":53,"_55":56,"_57":-5,"_19":58,"_59":60,"_61":62,"_63":-5,"_64":-5,"_65":66,"_67":68,"_69":-5,"_70":-5,"_71":-5,"_72":-5,"_73":74,"_75":74,"_76":77,"_78":77,"_79":77,"_80":74,"_81":74,"_82":165,"_84":166,"_86":167,"_88":30},"tree",[155,156],"files",[155,156],"counts",{"_145":66,"_146":134,"_147":66,"_148":149,"_150":151},"contents",[129,130],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_46":142,"_37":33,"_35":36,"_133":-5,"_44":45,"_43":14,"_135":62,"_41":143,"_13":66,"_38":26,"_39":40,"_29":30,"_139":-5,"_32":144},{"_46":131,"_37":132,"_35":60,"_133":-5,"_44":45,"_43":134,"_135":30,"_41":136,"_13":66,"_38":137,"_39":138,"_29":30,"_139":140,"_32":141},"120ff506-0780-4bac-afb6-dfe0521a436d","main.ts","parentId",1,"latest",["D",1784809961893],"http","import { YouTubeTranscript } from \"npm:youtube-transcript@1.0.6\";\n\nexport default async function handler(req: Request): Promise {\n const url = new URL(req.url);\n\n // Serve the frontend\n if (url.pathname === \"/\" || url.pathname === \"/index.html\") {\n const html = await fetch(\n `https://esm.town/v/MarkyMark00/youtube-summarizer/index.html`,\n ).then((r) => r.text());\n return new Response(html, {\n headers: { \"Content-Type\": \"text/html; charset=utf-8\" },\n });\n }\n\n // API endpoint\n if (url.pathname === \"/api/summarize\") {\n const videoUrl = url.searchParams.get(\"url\");\n if (!videoUrl) {\n return json({ error: \"Please provide a YouTube URL\" }, 400);\n }\n\n const videoId = extractVideoId(videoUrl);\n if (!videoId) {\n return json({ error: \"Could not parse YouTube video ID from that URL\" }, 400);\n }\n\n try {\n const transcript = await YouTubeTranscript.fetchTranscript(videoId);\n const fullText = transcript.map((t: any) => t.text).join(\" \");\n const words = fullText.split(/\\s+/).filter(Boolean);\n\n if (words.length === 0) {\n return json({ error: \"No transcript available for this video\" }, 404);\n }\n\n // Extractive summarization: score sentences by word frequency\n const summary = extractiveSummary(fullText, 3);\n const keyPoints = extractKeyPoints(fullText, 5);\n const videoTitle = await fetchVideoTitle(videoId).catch(() => null);\n\n return json({\n videoId,\n videoTitle,\n summary,\n keyPoints,\n transcriptLength: words.length,\n });\n } catch (e) {\n const msg = e instanceof Error ? e.message : \"Unknown error\";\n return json(\n { error: `Could not fetch transcript: ${msg}. This video may not have captions enabled.` },\n 500,\n );\n }\n }\n\n return json({ error: \"Not found\" }, 404);\n}\n\nfunction json(data: any, status = 200): Response {\n return new Response(JSON.stringify(data), {\n status,\n headers: { \"Content-Type\": \"application/json\" },\n });\n}\n\nfunction extractVideoId(url: string): string | null {\n try {\n const u = new URL(url);\n if (u.hostname === \"youtu.be\") {\n return u.pathname.slice(1) || null;\n }\n if (u.hostname.includes(\"youtube.com\")) {\n return u.searchParams.get(\"v\") || null;\n }\n // Maybe it's just the ID\n if (/^[a-zA-Z0-9_-]{11}$/.test(url)) return url;\n return null;\n } catch {\n if (/^[a-zA-Z0-9_-]{11}$/.test(url)) return url;\n return null;\n }\n}\n\nasync function fetchVideoTitle(videoId: string): Promise {\n const res = await fetch(`https://www.youtube.com/oembed?url=https://www.youtube.com/watch?v=${videoId}&format=json`);\n if (!res.ok) return null;\n const data = await res.json();\n return data.title || null;\n}\n\n// Split text into sentences\nfunction splitSentences(text: string): string[] {\n return text\n .replace(/([.!?])\\s+/g, \"$1\\n\")\n .split(\"\\n\")\n .map((s) => s.trim())\n .filter((s) => s.length > 20);\n}\n\n// Extractive summary: pick top sentences by word frequency\nfunction extractiveSummary(text: string, numSentences: number): string {\n const sentences = splitSentences(text);\n if (sentences.length <= numSentences) return sentences.join(\" \");\n\n // Build word frequency map (excluding stop words)\n const stopWords = new Set([\n \"the\", \"a\", \"an\", \"and\", \"or\", \"but\", \"is\", \"are\", \"was\", \"were\",\n \"be\", \"been\", \"being\", \"have\", \"has\", \"had\", \"do\", \"does\", \"did\",\n \"will\", \"would\", \"could\", \"should\", \"may\", \"might\", \"must\", \"shall\",\n \"to\", \"of\", \"in\", \"for\", \"on\", \"with\", \"at\", \"by\", \"from\", \"as\",\n \"into\", \"through\", \"during\", \"before\", \"after\", \"above\", \"below\",\n \"up\", \"down\", \"out\", \"off\", \"over\", \"under\", \"again\", \"further\",\n \"then\", \"once\", \"here\", \"there\", \"when\", \"where\", \"why\", \"how\",\n \"all\", \"each\", \"every\", \"both\", \"few\", \"more\", \"most\", \"other\",\n \"some\", \"such\", \"no\", \"nor\", \"not\", \"only\", \"own\", \"same\", \"so\",\n \"than\", \"too\", \"very\", \"just\", \"can\", \"this\", \"that\", \"these\",\n \"those\", \"i\", \"you\", \"he\", \"she\", \"it\", \"we\", \"they\", \"what\",\n \"which\", \"who\", \"whom\", \"if\", \"because\", \"while\", \"about\",\n ]);\n\n const freq = new Map();\n for (const word of text.toLowerCase().split(/\\s+/)) {\n const clean = word.replace(/[^a-z]/g, \"\");\n if (clean.length > 2 && !stopWords.has(clean)) {\n freq.set(clean, (freq.get(clean) || 0) + 1);\n }\n }\n\n // Score each sentence\n const scored = sentences.map((sentence, idx) => {\n const words = sentence.toLowerCase().split(/\\s+/);\n let score = 0;\n for (const word of words) {\n const clean = word.replace(/[^a-z]/g, \"\");\n score += freq.get(clean) || 0;\n }\n // Normalize by sentence length, but give a slight boost to earlier sentences\n score = score / Math.sqrt(words.length) + (idx < 3 ? 2 : 0);\n return { sentence, score, idx };\n });\n\n // Pick top sentences, preserve original order\n const top = scored\n .sort((a, b) => b.score - a.score)\n .slice(0, numSentences)\n .sort((a, b) => a.idx - b.idx)\n .map((s) => s.sentence);\n\n return top.join(\" \");\n}\n\n// Extract key points as short phrases\nfunction extractKeyPoints(text: string, num: number): string[] {\n const sentences = splitSentences(text);\n if (sentences.length === 0) return [\"No key points could be extracted.\"];\n\n // Reuse the scoring from summary but pick different sentences\n const stopWords = new Set([\n \"the\", \"a\", \"an\", \"and\", \"or\", \"but\", \"is\", \"are\", \"was\", \"were\",\n \"be\", \"been\", \"being\", \"have\", \"has\", \"had\", \"do\", \"does\", \"did\",\n \"will\", \"would\", \"could\", \"should\", \"to\", \"of\", \"in\", \"for\", \"on\",\n \"with\", \"at\", \"by\", \"from\", \"as\", \"this\", \"that\", \"these\", \"those\",\n \"i\", \"you\", \"he\", \"she\", \"it\", \"we\", \"they\", \"just\", \"very\",\n ]);\n\n const freq = new Map();\n for (const word of text.toLowerCase().split(/\\s+/)) {\n const clean = word.replace(/[^a-z]/g, \"\");\n if (clean.length > 2 && !stopWords.has(clean)) {\n freq.set(clean, (freq.get(clean) || 0) + 1);\n }\n }\n\n const scored = sentences.map((sentence, idx) => {\n const words = sentence.toLowerCase().split(/\\s+/);\n let score = 0;\n for (const word of words) {\n score += freq.get(word.replace(/[^a-z]/g, \"\")) || 0;\n }\n return { sentence, score, idx };\n });\n\n const top = scored\n .sort((a, b) => b.score - a.score)\n .slice(0, num)\n .sort((a, b) => a.idx - b.idx)\n .map((s) => {\n // Truncate to a reasonable length for a key point\n let pt = s.sentence;\n if (pt.length > 150) pt = pt.slice(0, 147) + \"...\";\n return pt;\n });\n\n return top.length > 0 ? top : [\"No key points could be extracted.\"];\n}\n","label","markylang-youtube-summary-v1",[132],"e3ea9612-3657-4c33-94a7-8dc16e0fbd79",["D",1784809961893],[33],"pulls","branches","forks","envVars",{"_152":14,"_154":66},"connections",{"_152":66,"_153":66},"count","unfilledCount","emptyCount",{"_46":142,"_37":33,"_35":36,"_133":-5,"_44":45,"_43":14,"_135":62,"_41":161,"_13":66,"_38":26,"_39":40,"_29":30,"_139":-5,"_158":162,"_32":163},{"_46":131,"_37":132,"_35":60,"_133":-5,"_44":45,"_43":134,"_135":30,"_41":157,"_13":66,"_38":137,"_39":138,"_29":30,"_139":140,"_158":159,"_32":160},["D",1784809961893],"children",[],[132],["D",1784809961893],[],[33],["D",1784809922217],{"_100":99,"_107":102},{"_100":99,"_101":102,"_103":102,"_19":58,"_104":105,"_106":30},{"_13":89,"_37":90,"_46":45,"_91":47,"_92":-5,"_93":-5,"_94":-5,"_95":-5,"_96":-5,"_97":48,"_98":99},"ctx",{"_82":-5,"_126":201,"_202":203,"_204":205,"_206":30,"_207":30,"_208":30,"_209":62,"_210":-5,"_211":-7,"_212":-7,"_213":66,"_214":30,"_215":30,"_216":-5,"_217":30,"_218":30,"_219":30,"_220":-5},"ENV",{"_172":173,"_174":175,"_176":90,"_177":178,"_179":180,"_181":182,"_183":184,"_185":186,"_187":188,"_189":190,"_191":192,"_193":194,"_195":196,"_197":198,"_199":200},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","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 · v2