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dividimos se for muito longa.\n const chunks = splitText(text, 4000);\n for (const chunk of chunks) {\n await fetch(`https://api.telegram.org/bot${TOKEN}/sendMessage`, {\n method: \"POST\",\n headers: { \"Content-Type\": \"application/json\" },\n body: JSON.stringify({\n chat_id: chatId,\n text: chunk,\n parse_mode: \"Markdown\", // <- ESTA LINHA RESOLVE O PROBLEMA\n }),\n });\n }\n}\n\nexport async function sendChatAction(chatId: number, action = \"typing\") {\n await fetch(`https://api.telegram.org/bot${TOKEN}/sendChatAction`, {\n method: \"POST\",\n headers: { \"Content-Type\": \"application/json\" },\n body: JSON.stringify({ chat_id: chatId, action }),\n });\n}\n\n// Resolve a Telegram file_id to a temporary download URL.\nexport async function getFileUrl(fileId: string): Promise {\n const res = await fetch(\n `https://api.telegram.org/bot${TOKEN}/getFile?file_id=${fileId}`,\n );\n const data = await res.json();\n if (!data.ok) {\n console.error(\"getFile error:\", JSON.stringify(data));\n return null;\n }\n return `https://api.telegram.org/file/bot${TOKEN}/${data.result.file_path}`;\n}\n\n// Download a Telegram file as base64 (needed for Gemini inline_data).\nexport async function downloadAsBase64(\n fileId: string,\n): Promise<{ base64: string; bytes: number } | null> {\n const fileUrl = await getFileUrl(fileId);\n if (!fileUrl) return null;\n const res = await fetch(fileUrl);\n const buf = new Uint8Array(await res.arrayBuffer());\n let binary = \"\";\n for (let i = 0; i < buf.length; i++) binary += String.fromCharCode(buf[i]);\n return { base64: btoa(binary), bytes: buf.length };\n}\n\n// Download a Telegram file as UTF-8 text (for .txt documents).\nexport async function downloadAsText(fileId: string): Promise {\n const fileUrl = await getFileUrl(fileId);\n if (!fileUrl) return null;\n const res = await fetch(fileUrl);\n return await res.text();\n}\n\nfunction splitText(text: string, max: number): string[] {\n if (text.length <= max) return [text];\n const chunks: string[] = [];\n for (let i = 0; i < text.length; i += max) {\n chunks.push(text.slice(i, i + max));\n }\n return chunks;\n}","deleted","label",[116],"68415059-bdd1-4d5f-b11b-fca2a303910d","main.ts",11,["D",1781511343918],4,"http","import {\n AVAILABLE_MODELS,\n clearChatHistory,\n getChatHistory,\n getModel,\n saveChatHistory,\n setModel,\n} from \"./db.ts\";\nimport { generate } from \"./gemini.ts\";\nimport {\n downloadAsBase64,\n downloadAsText,\n sendChatAction,\n sendMessage,\n} from \"./telegram.ts\";\n\nconst TELEGRAM_TOKEN = Deno.env.get(\"TELEGRAM_BOT_TOKEN\");\nconst GEMINI_KEY = Deno.env.get(\"GEMINI_API_KEY\");\nconst MAX_TXT_CHARS = 50_000;\n\nasync function handleMessage(message: any) {\n const chatId: number | undefined = message?.chat?.id;\n if (!chatId) return;\n\n const text: string | undefined = message.text;\n const caption: string | undefined = message.caption;\n const photo = message.photo;\n const document = message.document;\n\n const model = await getModel(chatId);\n // 1. Carrega o histórico existente do SQLite\n let history = await getChatHistory(chatId);\n\n if (text === \"/start\") {\n await sendMessage(\n chatId,\n \"👋 Olá! Podes enviar texto, fotos ou ficheiros .txt. Agora tenho memória ativa!\\nUsa /clear para reiniciar a conversa.\",\n );\n return;\n }\n\n if (text === \"/clear\") {\n await clearChatHistory(chatId);\n await sendMessage(chatId, \"🧹 Memória limpa! Conversa reiniciada.\");\n return;\n }\n\n // (Comando /model omitido aqui para brevidade, mas podes manter a lógica que tinhas)\n\n await sendChatAction(chatId, \"typing\");\n\n let currentParts: any[] = [];\n\n // 2. Processa o Input atual do utilizador\n if (photo && photo.length > 0) {\n const largest = photo[photo.length - 1];\n const file = await downloadAsBase64(largest.file_id);\n if (file) {\n currentParts.push({\n inline_data: { mime_type: \"image/jpeg\", data: file.base64 },\n });\n currentParts.push({\n text: caption?.trim() || \"Analisa e resolve o exercício desta imagem.\",\n });\n }\n } else if (\n document &&\n (document.mime_type?.startsWith(\"text/\") ||\n document.file_name?.endsWith(\".txt\"))\n ) {\n let content = await downloadAsText(document.file_id);\n if (content) {\n if (content.length > MAX_TXT_CHARS) {\n content = content.slice(0, MAX_TXT_CHARS);\n }\n currentParts.push({\n text:\n `[Conteúdo do Ficheiro ${document.file_name}]:\\n${content}\\n\\nInstrução: ${\n caption?.trim() || \"Analisa o ficheiro.\"\n }`,\n });\n }\n } else if (text) {\n currentParts.push({ text: text });\n }\n\n if (currentParts.length === 0) {\n await sendMessage(\n chatId,\n \"Formato não suportado. Envia texto, fotos ou ficheiros .txt.\",\n );\n return;\n }\n\n // 3. Adiciona o turno do utilizador ao histórico\n history.push({ role: \"user\", parts: currentParts });\n\n // 4. Envia todo o histórico (contexto completo) para o Gemini\n const reply = await generate(history, model);\n\n // 5. Adiciona a resposta da IA ao histórico e guarda no SQLite\n history.push({ role: \"model\", parts: [{ text: reply }] });\n await saveChatHistory(chatId, history);\n\n // 6. Responde no Telegram\n await sendMessage(chatId, reply);\n}\n\nexport default async function (req: Request): Promise {\n // Mantém a função export default exatamente igual à tua (com tratamento de POST e ?setup)\n if (req.method === \"POST\") {\n try {\n const update = await req.json();\n if (update.message) await handleMessage(update.message);\n } catch (err) {\n console.error(err);\n }\n return new Response(\"ok\");\n }\n // ... resto do teu código de setup original\n return new Response(\"Running\");\n}",[134],"0b531a45-51cd-487d-bef6-825587ad60e9","gemini.ts","40978e8a-6890-11f1-abb0-1607ee4eb77e",["D",1781511853838],3,"const GEMINI_KEY = Deno.env.get(\"GEMINI_API_KEY\");\n\nexport interface ChatContent {\n role: \"user\" | \"model\";\n parts: (\n | { text: string }\n | { inline_data: { mime_type: string; data: string } }\n )[];\n}\n\nexport async function generate(\n contents: ChatContent[],\n model: string,\n): Promise {\n const url =\n `https://generativelanguage.googleapis.com/v1beta/models/${model}:generateContent?key=${GEMINI_KEY}`;\n\n const bodyPayload = {\n contents,\n // Em vez de systemInstruction dentro de config, passa-se na raiz do JSON desta forma:\n systemInstruction: {\n parts: [{\n text:\n \"És um assistente e tutor de engenharia e matemática detalhado. Resolve e analisa tudo passo a passo. \" +\n \"ATENÇÃO: Nunca uses formatação LaTeX (como $ ou $$) para equações. Escreve as fórmulas em texto simples legível \" +\n \"usando caracteres normais, frações lineares (ex: C/I = (1/i0) * (3N)^(n/2)) e formatação Markdown para listas.\",\n }],\n },\n // Em vez de \"config\", a API lê \"generationConfig\" na raiz:\n generationConfig: {\n temperature: 0.2,\n },\n };\n\n const res = await fetch(url, {\n method: \"POST\",\n headers: { \"Content-Type\": \"application/json\" },\n body: JSON.stringify(bodyPayload),\n });\n\n const data = await res.json();\n if (!res.ok) {\n console.error(\"Gemini error:\", JSON.stringify(data));\n return \"Desculpa, tive um problema a processar isso. Tenta novamente.\";\n }\n return (\n data?.candidates?.[0]?.content?.parts?.[0]?.text ??\n \"Hmm, não obtive uma resposta.\"\n );\n}",[142],"af6bf904-d9eb-4f8b-9413-0790282a7c12","db.ts","9b4342ae-688e-11f1-a5d2-1607ee4eb77e",10,["D",1781511339784],2,"import { sqlite } from \"https://esm.town/v/std/sqlite\";\n\nconst TABLE_MODELS = \"user_model_v1\";\nconst TABLE_HISTORY = \"user_history_v1\";\n\nexport const DEFAULT_MODEL = \"gemini-3.5-flash\";\nexport const AVAILABLE_MODELS = [\"gemini-3.5-flash\", \"gemini-2.5-pro\"] as const;\n\nasync function initDb() {\n // Cria a tabela de modelos\n await sqlite.execute(\n `CREATE TABLE IF NOT EXISTS ${TABLE_MODELS} (\n chat_id INTEGER PRIMARY KEY,\n model TEXT NOT NULL\n )`,\n );\n // Cria a tabela de histórico (guarda o JSON da estrutura de turnos)\n await sqlite.execute(\n `CREATE TABLE IF NOT EXISTS ${TABLE_HISTORY} (\n chat_id INTEGER PRIMARY KEY,\n history TEXT NOT NULL\n )`,\n );\n}\n\nexport async function getModel(chatId: number): Promise {\n await initDb();\n const res = await sqlite.execute({\n sql: `SELECT model FROM ${TABLE_MODELS} WHERE chat_id = ?`,\n args: [chatId],\n });\n return (res.rows[0]?.[0] as string) ?? DEFAULT_MODEL;\n}\n\nexport async function setModel(chatId: number, model: string): Promise {\n await initDb();\n await sqlite.execute({\n sql: `INSERT INTO ${TABLE_MODELS} (chat_id, model) VALUES (?, ?)\n ON CONFLICT(chat_id) DO UPDATE SET model = excluded.model`,\n args: [chatId, model],\n });\n}\n\n// RECUPERA O HISTÓRICO DO CHAT\nexport async function getChatHistory(chatId: number): Promise {\n await initDb();\n const res = await sqlite.execute({\n sql: `SELECT history FROM ${TABLE_HISTORY} WHERE chat_id = ?`,\n args: [chatId],\n });\n if (res.rows[0]?.[0]) {\n return JSON.parse(res.rows[0][0] as string);\n }\n return [];\n}\n\n// ATUALIZA O HISTÓRICO DO CHAT\nexport async function saveChatHistory(\n chatId: number,\n history: any[],\n): Promise {\n await initDb();\n // Limitamos às últimas 20 mensagens para não estourar os limites de tokens à toa\n const limitedHistory = history.slice(-20);\n await sqlite.execute({\n sql: `INSERT INTO ${TABLE_HISTORY} (chat_id, history) VALUES (?, ?)\n ON CONFLICT(chat_id) DO UPDATE SET history = excluded.history`,\n args: [chatId, JSON.stringify(limitedHistory)],\n });\n}\n\n// LIMPA A MEMÓRIA (Caso queiras começar um chat do zero)\nexport async function clearChatHistory(chatId: number): Promise {\n await initDb();\n await sqlite.execute({\n sql: `DELETE FROM ${TABLE_HISTORY} WHERE chat_id = ?`,\n args: [chatId],\n });\n}",[149],"pulls","branches","forks","envVars",{"_163":153,"_165":42},"connections",{"_163":42,"_164":42},"count","unfilledCount","emptyCount",{"_18":148,"_20":149,"_117":150,"_119":-5,"_120":71,"_121":151,"_123":38,"_22":180,"_68":153,"_126":127,"_128":154,"_130":26,"_131":-5,"_171":181,"_89":182},{"_18":141,"_20":142,"_117":143,"_119":-5,"_120":71,"_121":69,"_123":38,"_22":177,"_68":145,"_126":127,"_128":146,"_130":26,"_131":-5,"_171":178,"_89":179},{"_18":133,"_20":134,"_117":36,"_119":-5,"_120":71,"_121":135,"_123":38,"_22":174,"_68":137,"_126":138,"_128":139,"_130":26,"_131":-5,"_171":175,"_89":176},{"_18":115,"_20":116,"_117":118,"_119":-5,"_120":71,"_121":122,"_123":38,"_22":170,"_68":125,"_126":127,"_128":129,"_130":26,"_131":-5,"_171":172,"_89":173},["D",1781511513874],"children",[],[116],["D",1781511343918],[],[134],["D",1781511853838],[],[142],["D",1781511339784],[],[149],["D",1781509578284],["D",1789520505489],{"_16":17,"_87":83},{"_16":17,"_80":81,"_82":83,"_33":34,"_84":85,"_86":26},{"_68":69,"_20":70,"_18":71,"_72":19,"_73":-5,"_74":-5,"_75":-5,"_76":-5,"_77":-5,"_78":21,"_79":17},"ctx",{"_61":-5,"_108":221,"_222":223,"_224":225,"_226":26,"_227":26,"_228":26,"_229":38,"_230":-5,"_231":-7,"_232":-7,"_233":42,"_234":26,"_235":26,"_236":-5,"_237":26,"_238":26,"_239":26,"_240":-5},"ENV",{"_192":193,"_194":195,"_196":70,"_197":198,"_199":200,"_201":202,"_203":204,"_205":206,"_207":208,"_209":210,"_211":212,"_213":214,"_215":216,"_217":218,"_219":220},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","fdb67791413f4386b4dbf18f354029a617f6160f","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"]

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