ItChat

${inline(esc(para.join(\" \")))}

`;\n para = [];\n }\n };\n const flushList = () => {\n if (listType) {\n html += `<${listType}>` + listBuffer.map((li) =>\n `

${inline(esc(li))}

`\n ).join(\"\") + ``;\n listType = null;\n listBuffer = [];\n }\n };\n\n for (const raw of lines) {\n const line = raw.trimEnd();\n const heading = line.match(/^(#{1,3})\\s+(.*)$/);\n if (heading) {\n flushP();\n flushList();\n const lv = \"h\" + heading[1].length;\n html += `<${lv}>${inline(esc(heading[2]))}`;\n continue;\n }\n const ul = line.match(/^[-*]\\s+(.*)$/);\n const ol = line.match(/^\\d+\\.\\s+(.*)$/);\n if (ul || ol) {\n flushP();\n const item = ul ? ul[1]! : ol![1]!;\n const type: \"ul\" | \"ol\" = ul ? \"ul\" : \"ol\";\n if (listType === type) listBuffer.push(item);\n else {\n flushList();\n listType = type;\n listBuffer.push(item);\n }\n continue;\n }\n if (/^\\s*>\\s?/.test(line)) {\n flushP();\n flushList();\n html += `

${\n inline(esc(line.replace(/^\\s*>\\s?/, \"\")))\n }

`;\n continue;\n }\n if (line.trim() === \"\") {\n flushP();\n flushList();\n continue;\n }\n flushList();\n para.push(line);\n }\n flushP();\n flushList();\n return html;\n}\n\nfunction codeBlock(lang: string, code: string): string {\n return (\n `

` +\n `

${esc(lang)}` +\n `

` +\n `

${esc(code)}

` +\n `

`\n );\n}\n\nfunction renderInner(full: string): string {\n const regex = /```(\\w*)\\s*\\n([\\s\\S]*?)```/g;\n let out = \"\";\n let last = 0;\n let m: RegExpExecArray | null;\n while ((m = regex.exec(full))) {\n if (m.index > last) out += renderText(full.slice(last, m.index));\n out += codeBlock(m[1] || \"code\", m[2].replace(/\\n$/, \"\"));\n last = m.index + m[0].length;\n }\n if (last < full.length) out += renderText(full.slice(last));\n return out || renderText(full);\n}\n\n// --- view helpers -------------------------------------------------------------\n\nfunction assistantMsg(inner: string): string {\n return (\n `

` +\n `

${inner}

` +\n `

`\n );\n}\n\nfunction userMsg(content: string): string {\n return `

${\n inline(esc(content))\n }

`;\n}\n\nasync function main(req: Request): Promise {\n const { readable, writable } = new TransformStream();\n const writer = writable.getWriter();\n const write = (t: string) => writer.write(new TextEncoder().encode(t));\n\n (async () => {\n try {\n const form = req.method === \"POST\" ? await req.formData() : null;\n const uid = getUid(form, req);\n const key = `chat_${uid}`;\n const userText = (form?.get(\"userprompt\") as string) ?? \"\";\n\n let history: Msg[] = [];\n if (form?.get(\"clear\")) {\n await blob.delete(key);\n } else {\n history = await loadHistory(key);\n }\n\n write(`\n\n\n \n ItChat\n \n\n\n \n

`);\n\n // Render prior conversation\n for (const msg of history) {\n if (msg.role === \"user\") {\n write(userMsg(msg.content));\n } else {\n write(assistantMsg(renderInner(msg.content)));\n }\n }\n\n if (userText) {\n const nextHistory: Msg[] = [...history.slice(-MAX_HISTORY), {\n role: \"user\",\n content: userText,\n }];\n // persist the user's message so it survives even if generation fails\n await blob.setJSON(key, nextHistory);\n write(userMsg(userText));\n\n // NOTE: tags are intentionally left OPEN so the streamed deltas below\n // land *inside* the

. They are closed after streaming finishes.\n        write(\n          `` +\n            ``,\n        );\n\n        const token = Deno.env.get(\"valtown\");\n        const modelMessages = [\n          { role: \"system\", content: SYSTEM_PROMPT },\n          ...nextHistory,\n        ];\n\n        let full = \"\";\n        await streamChat(token, modelMessages, (d) => {\n          full += d;\n          write(_.escape(d));\n        });\n\n        // Close the tags left open above so the placeholder is a complete element.\n        write(`
`);\n\n        const newHistory: Msg[] = [...nextHistory, {\n          role: \"assistant\",\n          content: full,\n        }];\n        await blob.setJSON(key, newHistory.slice(-MAX_HISTORY));\n        const rendered = assistantMsg(renderInner(full));\n        write(\n          `` +\n            ``,\n        );\n      }\n      if (!userText && history.length === 0) {\n        write(\n          `Ask me to write some code — press Enter to send.
`,\n        );\n      }\n\n      write(`

`);\n\n // Input area\n write(\n `

` +\n `

`,\n );\n\n write(\n ``,\n );\n\n write(``);\n } catch (e) {\n write(\n `

Something went wrong: ${\n _.escape((e && (e as any).message) || e)\n }

`,\n );\n } finally {\n writer.close();\n }\n })();\n\n return new Response(readable, { headers: { \"Content-Type\": \"text/html\" } });\n}\n\nexport default main;",[153],"357a7bc2-ce65-4ccc-b895-93bd470886ab","README.md","01a079e9-73b0-76d8-a7b4-a5e9b886a96a",32,["D",1788752950189],1,"# VALL-E — coding chatbot\n\nA conversational chatbot that streams replies and returns code in copyable code blocks. No login or API key required.\n\n- Type a message; VALL-E streams its reply live.\n- Code is wrapped in fenced code blocks with a **Copy** button.\n- The conversation carries over between messages.\n\nUses the Val Town OpenAI proxy (`std-openaiproxy.web.val.run`) with the auto-injected `valtown` token, so there's nothing to configure.\n\nOpen the app: [url:main.tsx]\n",[161],"pulls","branches","forks","envVars",{"_175":61,"_177":61},"connections",{"_175":61,"_176":61},"count","unfilledCount","emptyCount",{"_43":160,"_32":161,"_30":162,"_145":-5,"_41":42,"_40":163,"_146":57,"_38":188,"_13":165,"_33":20,"_35":166,"_24":25,"_149":-5,"_182":189,"_27":190},{"_43":152,"_32":153,"_30":154,"_145":-5,"_41":42,"_40":155,"_146":57,"_38":185,"_13":157,"_33":37,"_35":158,"_24":25,"_149":-5,"_182":186,"_27":187},{"_43":144,"_32":28,"_30":31,"_145":-5,"_41":42,"_40":14,"_146":25,"_38":181,"_13":148,"_33":37,"_35":36,"_24":25,"_149":150,"_182":183,"_27":184},["D",1788833083082],"children",[],[28],["D",1788754119501],[],[153],["D",1788752950189],[],[161],["D",1788751737705],{"_99":98,"_107":103},{"_99":98,"_100":101,"_102":103,"_18":54,"_104":105,"_106":25},{"_13":84,"_32":85,"_43":42,"_86":44,"_87":88,"_89":90,"_91":50,"_92":93,"_94":95,"_96":45,"_97":98},"ctx",{"_77":-5,"_129":228,"_229":230,"_231":232,"_233":25,"_234":25,"_235":25,"_236":57,"_237":-5,"_238":-7,"_239":-7,"_240":61,"_241":25,"_242":25,"_243":-5,"_244":25,"_245":25,"_246":25,"_247":-5},"ENV",{"_199":200,"_201":202,"_203":85,"_204":205,"_206":207,"_208":209,"_210":211,"_212":213,"_214":215,"_216":217,"_218":219,"_220":221,"_222":223,"_224":225,"_226":227},"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 · v47