{"repo": "azrahudaya/bekal10", "files": {"server.js": {"09a03243bef9c6fefc85dc062cde83eec1c78a4f": {"t": 1785745542.1902459, "n": 32663, "h": "bf987a75ac0ec1d2", "c": "const http = require(\"http\");\nconst fs = require(\"fs\");\nconst path = require(\"path\");\nconst tls = require(\"tls\");\n\nloadEnv();\n\nconst PORT = Number(process.env.PORT || 3000);\nconst PUBLIC_DIR = process.cwd();\nconst DEEPSEEK_BASE_URL = (process.env.DEEPSEEK_BASE_URL || \"https://api.deepseek.com\").replace(/\\/$/, \"\");\nconst DEEPSEEK_MODEL = process.env.DEEPSEEK_MODEL || \"deepseek-v4-flash\";\n\nconst mimeTypes = {\n  \".html\": \"text/html; charset=utf-8\",\n  \".css\": \"text/css; charset=utf-8\",\n  \".js\": \"text/javascript; charset=utf-8\",\n  \".json\": \"application/json; charset=utf-8\",\n};\n\nconst server = http.createServer(async (req, res) => {\n  try {\n    if (req.method === \"POST\" && req.url === \"/api/chat\") {\n      await handleChat(req, res);\n      return;\n    }\n\n    if (req.method === \"POST\" && req.url === \"/api/send-results\") {\n      await handleSendResults(req, res);\n      return;\n    }\n\n    if (req.method === \"GET\") {\n      serveStatic(req, res);\n      return;\n    }\n\n    sendJson(res, 405, { message: \"Method tidak didukung.\" });\n  } catch (error) {\n    sendJson(res, 500, { message: \"Server error.\" });\n  }\n});\n\nserver.listen(PORT, () => {\n  console.log(`Bekal10 jalan di http://localhost:${PORT}`);\n});\n\nfunction loadEnv() {\n  const envPath = path.join(process.cwd(), \".env\");\n  if (!fs.existsSync(envPath)) return;\n\n  const lines = fs.readFileSync(envPath, \"utf8\").split(/\\r?\\n/);\n  lines.forEach((line) => {\n    const trimmed = line.trim();\n    if (!trimmed || trimmed.startsWith(\"#\")) return;\n\n    const separator = trimmed.indexOf(\"=\");\n    if (separator === -1) return;\n\n    const key = trimmed.slice(0, separator).trim();\n    const value = trimmed.slice(separator + 1).trim().replace(/^[\"']|[\"']$/g, \"\");\n    if (!process.env[key]) process.env[key] = value;\n  });\n}\n\nfunction serveStatic(req, res) {\n  const urlPath = req.url === \"/\" ? \"/index.html\" : decodeURIComponent(req.url.split(\"?\")[0]);\n  const filePath = path.normalize(path.join(PUBLIC_DIR, urlPath));\n  const fileName = path.basename(filePath);\n\n  if (!filePath.startsWith(PUBLIC_DIR) || fileName === \".env\") {\n    res.writeHead(403);\n    res.end(\"Forbidden\");\n    return;\n  }\n\n  fs.readFile(filePath, (error, content) => {\n    if (error) {\n      res.writeHead(404);\n      res.end(\"Not found\");\n      return;\n    }\n\n    res.writeHead(200, {\n      \"Content-Type\": mimeTypes[path.extname(filePath)] || \"application/octet-stream\",\n    });\n    res.end(content);\n  });\n}\n\nasync function handleChat(req, res) {\n  if (!process.env.DEEPSEEK_API_KEY) {\n    sendJson(res, 500, { message: \"DEEPSEEK_API_KEY belum ada di .env.\" });\n    return;\n  }\n\n  const body = await readJson(req);\n  const apiResponse = await fetch(`${DEEPSEEK_BASE_URL}/chat/completions`, {\n    method: \"POST\",\n    headers: {\n      Authorization: `Bearer ${process.env.DEEPSEEK_API_KEY}`,\n      \"Content-Type\": \"application/json\",\n    },\n    body: JSON.stringify({\n      model: DEEPSEEK_MODEL,\n      messages: buildChatMessages(body),\n      temperature: 0.2,\n      max_tokens: 1200,\n      stream: false,\n      user_id: sanitizeUserId(body.participant?.id || \"bekal10-user\"),\n    }),\n  });\n\n  const data = await apiResponse.json().catch(() => ({}));\n\n  if (!apiResponse.ok) {\n    sendJson(res, apiResponse.status, {\n      message: data.error?.message || \"Gagal memanggil DeepSeek.\",\n    });\n    return;\n  }\n\n  const reply = cleanReply(getDeepSeekReply(data)) || buildFallbackReply(body);\n  sendJson(res, 200, { reply });\n}\n\nasync function handleSendResults(req, res) {\n  const body = await readJson(req);\n  const savedPath = saveResultJson(body);\n  const userEmailResult = await sendUserAttemptEmail(body);\n  const adminEmailResult = await sendAdminResultsEmail(body);\n\n  sendJson(res, 200, {\n    ok: true,\n    saved: true,\n    emailSent: adminEmailResult.sent,\n    adminEmailSent: adminEmailResult.sent,\n    userEmailSent: userEmailResult.sent,\n    jsonFile: savedPath,\n    message: buildSendResultsMessage(userEmailResult, adminEmailResult),\n  });\n}\n\nasync function sendUserAttemptEmail(body) {\n  const participant = body.participant || {};\n  const attempt = body.attempt || {};\n  const recipient = String(participant.email || \"\").trim();\n  const testLabel = attempt.testLabel || \"tes\";\n\n  if (!attempt.testId || !attempt.scores) {\n    return { sent: false, skipped: true, reason: \"NO_ATTEMPT\", message: \"Tidak ada hasil tes baru untuk email peserta.\" };\n  }\n\n  if (!isValidEmailAddress(recipient)) {\n    return { sent: false, skipped: true, reason: \"NO_USER_EMAIL\", message: \"Email peserta belum valid.\" };\n  }\n\n  const smtpConfig = getSmtpConfig([recipient]);\n  if (!smtpConfig.ready) {\n    return { sent: false, skipped: true, reason: \"SMTP_MISSING\", message: \"SMTP belum lengkap, email peserta belum terkirim.\" };\n  }\n\n  const email = await buildUserResultsEmail(body);\n  try {\n    await sendSmtpMail({\n      ...smtpConfig,\n      subject: `Hasil ${testLabel} Bekal10`,\n      text: email.text,\n      html: email.html,\n    });\n\n    return { sent: true, skipped: false, reason: \"SENT\", message: `Email hasil ${testLabel} terkirim ke peserta.` };\n  } catch (error) {\n    return { sent: false, skipped: false, reason: \"USER_EMAIL_FAILED\", message: `Email hasil ${testLabel} gagal dikirim ke peserta.` };\n  }\n}\n\nasync function sendAdminResultsEmail(body) {\n  const riasec = body.riasec;\n  const vark = body.vark;\n\n  if (!riasec || !vark) {\n    return { sent: false, skipped: true, reason: \"WAITING_FOR_BOTH_TESTS\", message: \"Rekap admin dikirim setelah RIASEC dan VARK selesai.\" };\n  }\n\n  const fingerprint = `${riasec.id}:${vark.id}`;\n  if (body.participant?.emailSentFingerprint === fingerprint) {\n    return { sent: false, skipped: true, reason: \"ADMIN_ALREADY_SENT\", message: \"Rekap admin sudah pernah dikirim.\" };\n  }\n\n  const smtpConfig = getSmtpConfig();\n  if (!smtpConfig.ready) {\n    return { sent: false, skipped: true, reason: \"SMTP_MISSING\", message: \"SMTP belum lengkap, rekap admin belum terkirim.\" };\n  }\n\n  const email = buildResultsEmail(body);\n  try {\n    await sendSmtpMail({\n      ...smtpConfig,\n      subject: `Hasil Tes Bekal10 ${body.participant?.name || \"Peserta\"}`,\n      text: email.text,\n      html: email.html,\n    });\n\n    return { sent: true, skipped: false, reason: \"SENT\", message: \"Rekap admin terkirim.\" };\n  } catch (error) {\n    return { sent: false, skipped: false, reason: \"ADMIN_EMAIL_FAILED\", message: \"Rekap admin gagal dikirim.\" };\n  }\n}\n\nfunction buildSendResultsMessage(userEmailResult, adminEmailResult) {\n  return [\n    \"JSON tersimpan.\",\n    userEmailResult.message,\n    adminEmailResult.message,\n  ].filter(Boolean).join(\" \");\n}\n\nfunction buildChatMessages(body) {\n  const scope = body.testId === \"vark\"\n    ? \"VARK, gaya belajar, hasil skor VARK, saran belajar, rekomendasi jurusan/prodi/kuliah/kampus, dan hubungan gaya belajar dengan pilihan studi. Jika hasil RIASEC tersedia, gunakan sebagai dasar utama.\"\n    : \"RIASEC, minat karier, hasil skor RIASEC, saran jurusan/prodi/kuliah/kampus, arah karier, dan cara mengembangkan minat.\";\n\n  const scores = body.result?.scores\n    ? Object.entries(body.result.scores)\n        .map(([key, value]) => `${body.traits?.[key] || key}: ${value}`)\n        .join(\", \")\n    : \"belum ada\";\n  const riasecScores = formatScores(body.latestResults?.riasec?.scores, body.labels?.riasec);\n  const varkScores = formatScores(body.latestResults?.vark?.scores, body.labels?.vark);\n\n  const system = [\n    \"Kamu adalah chatbot Bekal10.\",\n    \"Jawab dalam Bahasa Indonesia.\",\n    \"Jawaban harus rapi, jelas, dan tidak terlalu panjang.\",\n    \"Jangan menulis semuanya dalam satu paragraf panjang.\",\n    \"Gunakan maksimal 2 paragraf pendek dan maksimal 5 poin list.\",\n    \"Selesaikan jawaban secara utuh, jangan berhenti di tengah kalimat.\",\n    \"Gunakan markdown sederhana untuk penekanan, misalnya **Social (21)**.\",\n    `Topik yang boleh dibahas hanya: ${scope}`,\n    \"Pertanyaan tentang jurusan, prodi, kuliah, kampus, SMK/SMA lanjut, pekerjaan, portofolio, dan cara belajar masih termasuk topik.\",\n    \"Kalau pertanyaan benar-benar di luar topik pendidikan/tes, jawab singkat: Maaf, aku hanya bisa membahas hasil tes dan rencana pendidikan/karier.\",\n    \"Kalau user bertanya jurusan/prodi/kuliah/kampus, berikan rekomendasi praktis. Gunakan RIASEC sebagai dasar utama dan VARK sebagai pendukung cara belajar.\",\n    `Nama peserta: ${body.participant?.name || \"-\"}.`,\n    `Tes aktif: ${body.testLabel || body.testId}.`,\n    `Skor tes aktif: ${scores}.`,\n    `Skor RIASEC terbaru: ${riasecScores || \"belum ada\"}.`,\n    `Skor VARK terbaru: ${varkScores || \"belum ada\"}.`,\n  ].join(\"\\n\");\n\n  const history = Array.isArray(body.history) ? body.history.slice(-8) : [];\n  const mappedHistory = history\n    .filter((item) => item.text && item.text !== \"Menjawab...\")\n    .map((item) => ({\n      role: item.sender === \"user\" ? \"user\" : \"assistant\",\n      content: String(item.text).slice(0, 1800),\n    }));\n\n  return [\n    { role: \"system\", content: system },\n    ...mappedHistory,\n    { role: \"user\", content: String(body.message || \"\").slice(0, 1800) },\n  ];\n}\n\nfunction getDeepSeekReply(data) {\n  return data.choices?.[0]?.message?.content\n    || data.choices?.[0]?.delta?.content\n    || data.choices?.[0]?.text\n    || \"\";\n}\n\nfunction cleanReply(value) {\n  const reply = String(value || \"\").trim();\n  if (!reply) return \"\";\n  if (/^tidak ada balasan\\.?$/i.test(reply)) return \"\";\n  if (/^null$/i.test(reply)) return \"\";\n  return reply;\n}\n\nfunction formatScores(scores = {}, labels = {}) {\n  return Object.entries(scores)\n    .sort((a, b) => b[1] - a[1])\n    .map(([key, value]) => `${labels[key] || key}: ${value}`)\n    .join(\", \");\n}\n\nfunction buildFallbackReply(body) {\n  const message = String(body.message || \"\").toLowerCase();\n  const riasecScores = body.latestResults?.riasec?.scores;\n  const varkScores = body.latestResults?.vark?.scores || body.result?.scores;\n  const riasecTop = topScores(riasecScores, body.labels?.riasec);\n  const varkTop = topScores(varkScores, body.labels?.vark || body.traits);\n\n  if (isEducationQuestion(message)) {\n    if (riasecTop.length) {\n      const recommendations = recommendMajorsByRiasec(riasecTop[0].key);\n      return [\n        `Berdasarkan hasilmu, tipe terkuat adalah **${riasecTop.map((item) => `${item.label} (${item.score})`).join(\"**, **\")}**.`,\n        \"\",\n        \"Rekomendasi jurusan awal:\",\n        ...recommendations.map((item, index) => `${index + 1}. **${item}**`),\n        \"\",\n        varkTop.length\n          ? `Hasil VARK kamu yang kuat: **${varkTop.map((item) => item.label).join(\", \")}**. Gunakan itu untuk memilih cara belajar, bukan sebagai satu-satunya dasar memilih jurusan.`\n          : \"Untuk lebih akurat, selesaikan juga Tes VARK.\",\n      ].join(\"\\n\");\n    }\n\n    if (varkTop.length) {\n      return [\n        `Dari VARK, gaya belajar kuat kamu adalah **${varkTop.map((item) => `${item.label} (${item.score})`).join(\"**, **\")}**.`,\n        \"\",\n        \"VARK bukan tes minat jurusan, tapi bisa jadi pendukung. Jurusan yang banyak cocok dengan gaya belajar praktik/diskusi antara lain:\",\n        \"1. **Pendidikan**\",\n        \"2. **Komunikasi**\",\n        \"3. **Keperawatan**\",\n        \"4. **Pariwisata**\",\n        \"5. **Desain atau bidang praktikum**\",\n        \"\",\n        \"Untuk rekomendasi jurusan yang lebih tepat, selesaikan juga Tes RIASEC.\",\n      ].join(\"\\n\");\n    }\n  }\n\n  if (body.testId === \"vark\") {\n    return [\n      `Hasil VARK kamu yang menonjol: **${varkTop.map((item) => `${item.label} (${item.score})`).join(\"**, **\") || \"belum ada\"}**.`,\n      \"\",\n      \"Gunakan hasil ini untuk memilih cara belajar yang paling nyaman.\",\n      \"Kalau mau rekomendasi jurusan, hasil RIASEC lebih tepat dijadikan dasar utama.\",\n    ].join(\"\\n\");\n  }\n\n  return [\n    `Hasil RIASEC kamu yang menonjol: **${riasecTop.map((item) => `${item.label} (${item.score})`).join(\"**, **\") || \"belum ada\"}**.`,\n    \"\",\n    \"Kamu bisa tanya rekomendasi jurusan, karier, atau cara mengembangkan minat dari hasil ini.\",\n  ].join(\"\\n\");\n}\n\nfunction isEducationQuestion(message) {\n  return [\n    \"jurusan\",\n    \"prodi\",\n    \"kuliah\",\n    \"kampus\",\n    \"universitas\",\n    \"politeknik\",\n    \"sekolah\",\n    \"smk\",\n    \"sma\",\n    \"karier\",\n    \"kerja\",\n    \"pekerjaan\",\n    \"dimana\",\n    \"di mana\",\n  ].some((keyword) => message.includes(keyword));\n}\n\nfunction topScores(scores = {}, labels = {}) {\n  const sorted = Object.entries(scores)\n    .map(([key, score]) => ({ key, label: labels[key] || key, score }))\n    .sort((a, b) => b.score - a.score);\n\n  if (!sorted.length) return [];\n  const topScore = sorted[0].score;\n  return sorted.filter((item) => item.score === topScore);\n}\n\nfunction recommendMajorsByRiasec(trait) {\n  const map = {\n    realistic: [\"Teknik Mesin\", \"Teknik Elektro\", \"Teknik Sipil\", \"Agribisnis\", \"Desain Produk\"],\n    investigative: [\"Kedokteran\", \"Farmasi\", \"Data Science\", \"Teknik Informatika\", \"Biologi\"],\n    artistic: [\"Desain Komunikasi Visual\", \"Seni Rupa\", \"Film\", \"Sastra\", \"Arsitektur\"],\n    social: [\"Pendidikan\", \"Bimbingan dan Konseling\", \"Psikologi\", \"Keperawatan\", \"Ilmu Komunikasi\"],\n    enterprising: [\"Manajemen\", \"Bisnis Digital\", \"Marketing\", \"Ilmu Komunikasi\", \"Hukum\"],\n    conventional: [\"Akuntansi\", \"Administrasi Bisnis\", \"Manajemen Perkantoran\", \"Sistem Informasi\", \"Perpajakan\"],\n  };\n\n  return map[trait] || [\"Manajemen\", \"Ilmu Komunikasi\", \"Sistem Informasi\", \"Pendidikan\", \"Bisnis Digital\"];\n}\n\nfunction getSmtpConfig(toOverride = null) {\n  const user = process.env.SMTP_USER || process.env.EMAIL_USER;\n  const pass = (process.env.SMTP_PASS || process.env.EMAIL_PASS || \"\").replace(/\\s+/g, \"\");\n  const from = process.env.SMTP_FROM || user;\n  const to = Array.isArray(toOverride)\n    ? toOverride.filter(isValidEmailAddress)\n    : splitEmails(process.env.SMTP_TO || process.env.EMAIL_TO);\n\n  return {\n    ready: Boolean(user && pass && from && to.length),\n    host: process.env.SMTP_HOST || \"smtp.gmail.com\",\n    port: Number(process.env.SMTP_PORT || 465),\n    user,\n    pass,\n    from,\n    to,\n  };\n}\n\nfunction buildResultsEmail(body) {\n  const participant = body.participant || {};\n  const attempt = body.attempt || {};\n  const riasecRows = scoreRows(body.riasec?.scores, body.labels?.riasec);\n  const varkRows = scoreRows(body.vark?.scores, body.labels?.vark);\n\n  const text = [\n    \"Hasil Tes Bekal10\",\n    \"\",\n    `Tes selesai: ${attempt.testLabel || \"-\"}`,\n    `Waktu submit: ${formatDate(attempt.createdAt)}`,\n    \"\",\n    `Nama: ${participant.name || \"-\"}`,\n    `Kelas: ${participant.studentClass || \"-\"}`,\n    `Umur: ${participant.age || \"-\"}`,\n    `No. HP: ${participant.phone || \"-\"}`,\n    `Email: ${participant.email || \"-\"}`,\n    \"\",\n    \"Hasil RIASEC:\",\n    ...(riasecRows.length ? riasecRows.map((row) => `- ${row.label}: ${row.score}`) : [\"- Belum selesai\"]),\n    \"\",\n    \"Hasil VARK:\",\n    ...(varkRows.length ? varkRows.map((row) => `- ${row.label}: ${row.score}`) : [\"- Belum selesai\"]),\n  ].join(\"\\n\");\n\n  const html = `\n    <h2>Hasil Tes Bekal10</h2>\n    <p><strong>Tes selesai:</strong> ${escapeHtml(attempt.testLabel || \"-\")}</p>\n    <p><strong>Waktu submit:</strong> ${escapeHtml(formatDate(attempt.createdAt))}</p>\n    <h3>Data Peserta</h3>\n    <table cellpadding=\"6\" cellspacing=\"0\" border=\"1\">\n      <tr><td>Nama</td><td>${escapeHtml(participant.name || \"-\")}</td></tr>\n      <tr><td>Kelas</td><td>${escapeHtml(participant.studentClass || \"-\")}</td></tr>\n      <tr><td>Umur</td><td>${escapeHtml(participant.age || \"-\")}</td></tr>\n      <tr><td>No. HP</td><td>${escapeHtml(participant.phone || \"-\")}</td></tr>\n      <tr><td>Email</td><td>${escapeHtml(participant.email || \"-\")}</td></tr>\n    </table>\n    <h3>Hasil RIASEC</h3>\n    ${riasecRows.length ? scoreTable(riasecRows) : \"<p>Belum selesai.</p>\"}\n    <h3>Hasil VARK</h3>\n    ${varkRows.length ? scoreTable(varkRows) : \"<p>Belum selesai.</p>\"}\n  `;\n\n  return { text, html };\n}\n\nasync function buildUserResultsEmail(body) {\n  const participant = body.participant || {};\n  const attempt = body.attempt || {};\n  const labels = body.labels?.[attempt.testId] || {};\n  const rows = scoreRows(attempt.scores, labels);\n  const topRows = getTopScoreRows(rows);\n  const summary = await buildAiEmailSummary(body, rows);\n  const testLabel = attempt.testLabel || \"Tes Bekal10\";\n\n  const text = [\n    `Hasil ${testLabel} Bekal10`,\n    \"\",\n    `Halo ${participant.name || \"Peserta\"},`,\n    `Tes selesai: ${testLabel}`,\n    `Waktu submit: ${formatDate(attempt.createdAt)}`,\n    \"\",\n    `Kategori tertinggi: ${topRows.map((row) => `${row.label} (${row.score})`).join(\", \") || \"-\"}`,\n    \"\",\n    \"Skor:\",\n    ...(rows.length ? rows.map((row) => `- ${row.label}: ${row.score}`) : [\"- Belum ada skor\"]),\n    \"\",\n    \"Ringkasan:\",\n    summary,\n  ].join(\"\\n\");\n\n  const html = buildUserResultsEmailHtml({\n    participant,\n    attempt,\n    rows,\n    summary,\n    testLabel,\n    topRows,\n  });\n\n  return { text, html };\n}\n\nasync function buildAiEmailSummary(body, rows) {\n  const fallback = buildFallbackEmailSummary(body, rows);\n  if (!process.env.DEEPSEEK_API_KEY) return fallback;\n\n  try {\n    const apiResponse = await fetch(`${DEEPSEEK_BASE_URL}/chat/completions`, {\n      method: \"POST\",\n      headers: {\n        Authorization: `Bearer ${process.env.DEEPSEEK_API_KEY}`,\n        \"Content-Type\": \"application/json\",\n      },\n      body: JSON.stringify({\n        model: DEEPSEEK_MODEL,\n        messages: buildEmailSummaryMessages(body, rows),\n        temperature: 0.2,\n        max_tokens: 550,\n        stream: false,\n        user_id: sanitizeUserId(body.participant?.id || \"bekal10-user\"),\n      }),\n    });\n\n    const data = await apiResponse.json().catch(() => ({}));\n    if (!apiResponse.ok) return fallback;\n\n    return cleanReply(getDeepSeekReply(data)) || fallback;\n  } catch (error) {\n    return fallback;\n  }\n}\n\nfunction buildEmailSummaryMessages(body, rows) {\n  const participant = body.participant || {};\n  const attempt = body.attempt || {};\n  const labels = body.labels || {};\n  const scoreText = rows.map((row) => `${row.label}: ${row.score}`).join(\", \");\n  const riasecScores = formatScores(body.riasec?.scores, labels.riasec);\n  const varkScores = formatScores(body.vark?.scores, labels.vark);\n\n  return [\n    {\n      role: \"system\",\n      content: [\n        \"Kamu menulis ringkasan hasil tes Bekal10 untuk email peserta.\",\n        \"Jawab dalam Bahasa Indonesia.\",\n        \"Gunakan plain text saja, tanpa markdown tebal dan tanpa tabel.\",\n        \"Tulis 1 paragraf pembuka pendek dan 3 bullet yang diawali tanda '-'.\",\n        \"Fokus pada tes yang baru selesai. Jika hasil tes lain tersedia, sebutkan hanya sebagai konteks pendukung.\",\n        \"Jangan memberi diagnosis psikologis, jangan membuat klaim pasti, dan jangan terlalu panjang.\",\n      ].join(\"\\n\"),\n    },\n    {\n      role: \"user\",\n      content: [\n        `Nama: ${participant.name || \"Peserta\"}`,\n        `Kelas: ${participant.studentClass || \"-\"}`,\n        `Umur: ${participant.age || \"-\"}`,\n        `Tes yang baru selesai: ${attempt.testLabel || attempt.testId || \"-\"}`,\n        `Skor tes ini: ${scoreText || \"belum ada\"}`,\n        `Skor RIASEC terbaru: ${riasecScores || \"belum ada\"}`,\n        `Skor VARK terbaru: ${varkScores || \"belum ada\"}`,\n      ].join(\"\\n\"),\n    },\n  ];\n}\n\nfunction buildFallbackEmailSummary(body, rows) {\n  const attempt = body.attempt || {};\n  const topRows = getTopScoreRows(rows);\n  const topText = topRows.map((row) => `${row.label} (${row.score})`).join(\", \") || \"belum terlihat jelas\";\n\n  if (attempt.testId === \"vark\") {\n    return [\n      `Hasil VARK kamu paling menonjol pada ${topText}. Ini bisa dipakai untuk memilih cara belajar yang terasa paling nyaman.`,\n      \"- Gunakan gaya belajar terkuat sebagai strategi utama saat memahami materi baru.\",\n      \"- Kombinasikan dengan gaya belajar lain agar proses belajar tidak terlalu sempit.\",\n      \"- Jika ingin memilih jurusan atau karier, jadikan hasil RIASEC sebagai dasar utama dan VARK sebagai pendukung cara belajar.\",\n    ].join(\"\\n\");\n  }\n\n  const recommendations = topRows.length ? recommendMajorsByRiasec(topRows[0].key) : [];\n  return [\n    `Hasil RIASEC kamu paling menonjol pada ${topText}. Ini menunjukkan area minat yang bisa mulai kamu eksplorasi lebih serius.`,\n    \"- Perhatikan aktivitas yang membuat kamu nyaman, penasaran, dan tahan mengerjakannya lebih lama.\",\n    \"- Gunakan hasil ini sebagai titik awal diskusi jurusan, kegiatan, portofolio, atau pilihan karier.\",\n    recommendations.length\n      ? `- Rekomendasi awal yang bisa dipertimbangkan: ${recommendations.slice(0, 3).join(\", \")}.`\n      : \"- Lengkapi juga tes lain agar gambaran belajar dan minat kamu lebih utuh.\",\n  ].join(\"\\n\");\n}\n\nfunction buildUserResultsEmailHtml({ participant, attempt, rows, summary, testLabel, topRows }) {\n  const topText = topRows.map((row) => `${row.label} (${row.score})`).join(\", \") || \"-\";\n  const preheader = `Hasil ${testLabel} kamu sudah siap.`;\n\n  return `\n    <div style=\"display:none;max-height:0;overflow:hidden;opacity:0;color:transparent;\">${escapeHtml(preheader)}</div>\n    <table role=\"presentation\" width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" style=\"margin:0;padding:0;background:#f4f4f0;font-family:Arial,Helvetica,sans-serif;color:#111111;\">\n      <tr>\n        <td align=\"center\" style=\"padding:28px 14px;\">\n          <table role=\"presentation\" width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" style=\"max-width:680px;background:#ffffff;border:2px solid #111111;border-radius:8px;overflow:hidden;\">\n            <tr>\n              <td style=\"background:#ffd000;border-bottom:2px solid #111111;padding:24px 26px;\">\n                <div style=\"font-size:12px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:#111111;\">Bekal10</div>\n                <h1 style=\"margin:8px 0 0;font-size:28px;line-height:1.15;color:#111111;\">Hasil ${escapeHtml(testLabel)}</h1>\n              </td>\n            </tr>\n            <tr>\n              <td style=\"padding:24px 26px;\">\n                <p style=\"margin:0 0 12px;font-size:16px;line-height:1.6;\">Halo <strong>${escapeHtml(participant.name || \"Peserta\")}</strong>, ini hasil tes yang baru kamu selesaikan.</p>\n                <table role=\"presentation\" width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" style=\"margin:18px 0;border:1px solid #dddddd;border-radius:8px;\">\n                  <tr>\n                    <td style=\"padding:12px 14px;border-bottom:1px solid #eeeeee;font-size:13px;color:#666666;\">Tes selesai</td>\n                    <td style=\"padding:12px 14px;border-bottom:1px solid #eeeeee;font-size:13px;font-weight:700;text-align:right;\">${escapeHtml(testLabel)}</td>\n                  </tr>\n                  <tr>\n                    <td style=\"padding:12px 14px;border-bottom:1px solid #eeeeee;font-size:13px;color:#666666;\">Waktu submit</td>\n                    <td style=\"padding:12px 14px;border-bottom:1px solid #eeeeee;font-size:13px;font-weight:700;text-align:right;\">${escapeHtml(formatDate(attempt.createdAt))}</td>\n                  </tr>\n                  <tr>\n                    <td style=\"padding:12px 14px;font-size:13px;color:#666666;\">Kategori tertinggi</td>\n                    <td style=\"padding:12px 14px;font-size:13px;font-weight:700;text-align:right;\">${escapeHtml(topText)}</td>\n                  </tr>\n                </table>\n\n                <h2 style=\"margin:22px 0 12px;font-size:18px;line-height:1.3;color:#111111;\">Skor</h2>\n                ${scoreEmailTable(rows, attempt.testId)}\n\n                <h2 style=\"margin:24px 0 12px;font-size:18px;line-height:1.3;color:#111111;\">Ringkasan AI</h2>\n                <div style=\"border-left:4px solid #ffd000;padding:2px 0 2px 14px;\">\n                  ${summaryToHtml(summary)}\n                </div>\n\n                <p style=\"margin:24px 0 0;font-size:12px;line-height:1.6;color:#666666;\">Hasil ini adalah bahan refleksi awal, bukan penentu tunggal pilihan jurusan atau karier. Gunakan bersama diskusi dengan orang tua, guru, atau konselor.</p>\n              </td>\n            </tr>\n          </table>\n        </td>\n      </tr>\n    </table>\n  `;\n}\n\nfunction scoreEmailTable(rows, testId) {\n  if (!rows.length) return `<p style=\"margin:0;font-size:14px;line-height:1.6;\">Belum ada skor.</p>`;\n\n  const maxScore = maxScoreForTest(testId, rows);\n  const body = rows.map((row) => {\n    const percent = Math.max(0, Math.min(100, Math.round((Number(row.score) / maxScore) * 100)));\n    return `\n      <tr>\n        <td style=\"padding:12px 0;border-bottom:1px solid #eeeeee;\">\n          <div style=\"font-size:14px;font-weight:700;color:#111111;\">${escapeHtml(row.label)}</div>\n          <div style=\"margin-top:8px;background:#eeeeee;border-radius:999px;height:8px;overflow:hidden;\">\n            <div style=\"background:#111111;width:${percent}%;height:8px;line-height:8px;\">&nbsp;</div>\n          </div>\n        </td>\n        <td style=\"padding:12px 0 12px 14px;border-bottom:1px solid #eeeeee;text-align:right;font-size:14px;font-weight:700;color:#111111;white-space:nowrap;\">${escapeHtml(row.score)} / ${escapeHtml(maxScore)}</td>\n      </tr>\n    `;\n  }).join(\"\");\n\n  return `<table role=\"presentation\" width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" style=\"border-collapse:collapse;\">${body}</table>`;\n}\n\nfunction summaryToHtml(summary) {\n  const lines = String(summary || \"\").split(/\\r?\\n/).map((line) => line.trim()).filter(Boolean);\n  const paragraphs = [];\n  const bullets = [];\n\n  lines.forEach((line) => {\n    if (/^[-*]\\s+/.test(line)) {\n      bullets.push(line.replace(/^[-*]\\s+/, \"\"));\n    } else {\n      paragraphs.push(line);\n    }\n  });\n\n  const paragraphHtml = paragraphs\n    .map((line) => `<p style=\"margin:0 0 10px;font-size:14px;line-height:1.6;color:#222222;\">${escapeHtml(line)}</p>`)\n    .join(\"\");\n  const bulletHtml = bullets.length\n    ? `<ul style=\"margin:8px 0 0 18px;padding:0;font-size:14px;line-height:1.6;color:#222222;\">${bullets.map((line) => `<li style=\"margin:0 0 8px;\">${escapeHtml(line)}</li>`).join(\"\")}</ul>`\n    : \"\";\n\n  return paragraphHtml + bulletHtml;\n}\n\nfunction saveResultJson(body) {\n  const resultDir = path.resolve(process.cwd(), process.env.RESULT_DIR || \"data/results\");\n  fs.mkdirSync(resultDir, { recursive: true });\n\n  const participantName = safeFilePart(body.participant?.name || \"peserta\");\n  const testId = safeFilePart(body.attempt?.testId || \"test\");\n  const timestamp = new Date().toISOString().replace(/[:.]/g, \"-\");\n  const fileName = `${timestamp}_${participantName}_${testId}.json`;\n  const filePath = path.join(resultDir, fileName);\n  const payload = {\n    savedAt: new Date().toISOString(),\n    participant: body.participant || null,\n    submittedTest: body.attempt || null,\n    latestResults: {\n      riasec: body.riasec || null,\n      vark: body.vark || null,\n    },\n  };\n\n  fs.writeFileSync(filePath, JSON.stringify(payload, null, 2), \"utf8\");\n  upsertHasilJson(resultDir, payload);\n  return path.relative(process.cwd(), filePath).replace(/\\\\/g, \"/\");\n}\n\nfunction upsertHasilJson(resultDir, payload) {\n  const hasilPath = path.join(resultDir, \"hasil.json\");\n  let collection = [];\n\n  if (fs.existsSync(hasilPath)) {\n    try {\n      const existing = JSON.parse(fs.readFileSync(hasilPath, \"utf8\"));\n      collection = Array.isArray(existing) ? existing : [];\n    } catch {\n      collection = [];\n    }\n  }\n\n  const participantId = payload.participant?.id;\n  const existingIndex = collection.findIndex((item) => item.participant?.id === participantId);\n\n  if (existingIndex >= 0) {\n    collection[existingIndex] = payload;\n  } else {\n    collection.push(payload);\n  }\n\n  fs.writeFileSync(hasilPath, JSON.stringify(collection, null, 2), \"utf8\");\n}\n\nfunction safeFilePart(value) {\n  return String(value)\n    .trim()\n    .replace(/[^a-zA-Z0-9_-]+/g, \"-\")\n    .replace(/^-+|-+$/g, \"\")\n    .slice(0, 60) || \"data\";\n}\n\nfunction scoreRows(scores = {}, labels = {}) {\n  return Object.entries(scores)\n    .map(([key, score]) => ({\n      key,\n      label: labels[key] || key,\n      score,\n    }))\n    .sort((a, b) => b.score - a.score);\n}\n\nfunction getTopScoreRows(rows) {\n  if (!rows.length) return [];\n  const topScore = rows[0].score;\n  return rows.filter((row) => row.score === topScore);\n}\n\nfunction maxScoreForTest(testId, rows = []) {\n  if (testId === \"riasec\") return 28;\n  if (testId === \"vark\") return 16;\n  return Math.max(1, ...rows.map((row) => Number(row.score) || 0));\n}\n\nfunction formatDate(value) {\n  if (!value) return \"-\";\n  const date = new Date(value);\n  if (Number.isNaN(date.getTime())) return value;\n  return date.toLocaleString(\"id-ID\", { timeZone: \"Asia/Jakarta\" });\n}\n\nfunction scoreTable(rows) {\n  const body = rows\n    .map((row) => `<tr><td>${escapeHtml(row.label)}</td><td>${escapeHtml(row.score)}</td></tr>`)\n    .join(\"\");\n\n  return `<table cellpadding=\"6\" cellspacing=\"0\" border=\"1\"><tr><th>Kategori</th><th>Skor</th></tr>${body}</table>`;\n}\n\nasync function sendSmtpMail({ host, port, user, pass, from, to, subject, text, html }) {\n  const socket = tls.connect({ host, port, servername: host });\n  socket.setEncoding(\"utf8\");\n\n  try {\n    await readSmtp(socket);\n    await smtpCommand(socket, `EHLO localhost`, [250]);\n    await smtpCommand(socket, \"AUTH LOGIN\", [334]);\n    await smtpCommand(socket, Buffer.from(user).toString(\"base64\"), [334]);\n    await smtpCommand(socket, Buffer.from(pass).toString(\"base64\"), [235]);\n    await smtpCommand(socket, `MAIL FROM:<${extractEmail(from)}>`, [250]);\n\n    for (const recipient of to) {\n      await smtpCommand(socket, `RCPT TO:<${extractEmail(recipient)}>`, [250, 251]);\n    }\n\n    await smtpCommand(socket, \"DATA\", [354]);\n    await smtpCommand(socket, buildMimeMessage({ from, to, subject, text, html }), [250], true);\n    await smtpCommand(socket, \"QUIT\", [221]);\n  } finally {\n    socket.end();\n  }\n}\n\nfunction buildMimeMessage({ from, to, subject, text, html }) {\n  const boundary = `bekal10-${Date.now()}`;\n  const encodedSubject = `=?UTF-8?B?${Buffer.from(subject, \"utf8\").toString(\"base64\")}?=`;\n  const lines = [\n    `From: ${from}`,\n    `To: ${to.join(\", \")}`,\n    `Subject: ${encodedSubject}`,\n    \"MIME-Version: 1.0\",\n    `Content-Type: multipart/alternative; boundary=\"${boundary}\"`,\n    \"\",\n    `--${boundary}`,\n    \"Content-Type: text/plain; charset=UTF-8\",\n    \"Content-Transfer-Encoding: 8bit\",\n    \"\",\n    dotStuff(text),\n    \"\",\n    `--${boundary}`,\n    \"Content-Type: text/html; charset=UTF-8\",\n    \"Content-Transfer-Encoding: 8bit\",\n    \"\",\n    dotStuff(html),\n    \"\",\n    `--${boundary}--`,\n    \"\",\n    \".\",\n    \"\",\n  ];\n\n  return lines.join(\"\\r\\n\");\n}\n\nfunction dotStuff(value) {\n  return String(value).replace(/(^|\\r?\\n)\\./g, \"$1..\");\n}\n\nfunction smtpCommand(socket, command, expectedCodes, isData = false) {\n  socket.write(isData ? command : `${command}\\r\\n`);\n  return readSmtp(socket).then((response) => {\n    const code = Number(response.slice(0, 3));\n    if (!expectedCodes.includes(code)) {\n      throw new Error(`SMTP error ${response}`);\n    }\n    return response;\n  });\n}\n\nfunction readSmtp(socket) {\n  return new Promise((resolve, reject) => {\n    let buffer = \"\";\n    const onData = (chunk) => {\n      buffer += chunk;\n      if (/\\r?\\n\\d{3} /.test(buffer) || /^\\d{3} /.test(buffer)) {\n        cleanup();\n        resolve(buffer);\n      }\n    };\n    const onError = (error) => {\n      cleanup();\n      reject(error);\n    };\n    const cleanup = () => {\n      socket.off(\"data\", onData);\n      socket.off(\"error\", onError);\n    };\n\n    socket.on(\"data\", onData);\n    socket.on(\"error\", onError);\n  });\n}\n\nfunction readJson(req) {\n  return new Promise((resolve, reject) => {\n    let raw = \"\";\n    req.on(\"data\", (chunk) => {\n      raw += chunk;\n      if (raw.length > 200_000) req.destroy();\n    });\n    req.on(\"end\", () => {\n      try {\n        resolve(JSON.parse(raw || \"{}\"));\n      } catch (error) {\n        reject(error);\n      }\n    });\n    req.on(\"error\", reject);\n  });\n}\n\nfunction splitEmails(value = \"\") {\n  return String(value)\n    .split(\",\")\n    .map((email) => email.trim())\n    .filter(Boolean);\n}\n\nfunction isValidEmailAddress(value) {\n  return /^[^\\s@]+@[^\\s@]+\\.[^\\s@]+$/.test(String(value || \"\").trim());\n}\n\nfunction extractEmail(value) {\n  const match = String(value).match(/<([^>]+)>/);\n  return (match ? match[1] : value).trim();\n}\n\nfunction sanitizeUserId(value) {\n  return String(value).replace(/[^a-zA-Z0-9_-]/g, \"_\").slice(0, 512);\n}\n\nfunction escapeHtml(value) {\n  return String(value)\n    .replace(/&/g, \"&amp;\")\n    .replace(/</g, \"&lt;\")\n    .replace(/>/g, \"&gt;\")\n    .replace(/\"/g, \"&quot;\")\n    .replace(/'/g, \"&#039;\");\n}\n\nfunction sendJson(res, status, payload) {\n  res.writeHead(status, { \"Content-Type\": \"application/json; charset=utf-8\" });\n  res.end(JSON.stringify(payload));\n}\n"}, "57cc2a42aa6ee206d6a4d69d78f865d2a2d5a293": {"t": 1785754032.3166246, "n": 32663, "h": "bf987a75ac0ec1d2", "c": "const http = require(\"http\");\nconst fs = require(\"fs\");\nconst path = require(\"path\");\nconst tls = require(\"tls\");\n\nloadEnv();\n\nconst PORT = Number(process.env.PORT || 3000);\nconst PUBLIC_DIR = process.cwd();\nconst DEEPSEEK_BASE_URL = (process.env.DEEPSEEK_BASE_URL || \"https://api.deepseek.com\").replace(/\\/$/, \"\");\nconst DEEPSEEK_MODEL = process.env.DEEPSEEK_MODEL || \"deepseek-v4-flash\";\n\nconst mimeTypes = {\n  \".html\": \"text/html; charset=utf-8\",\n  \".css\": \"text/css; charset=utf-8\",\n  \".js\": \"text/javascript; charset=utf-8\",\n  \".json\": \"application/json; charset=utf-8\",\n};\n\nconst server = http.createServer(async (req, res) => {\n  try {\n    if (req.method === \"POST\" && req.url === \"/api/chat\") {\n      await handleChat(req, res);\n      return;\n    }\n\n    if (req.method === \"POST\" && req.url === \"/api/send-results\") {\n      await handleSendResults(req, res);\n      return;\n    }\n\n    if (req.method === \"GET\") {\n      serveStatic(req, res);\n      return;\n    }\n\n    sendJson(res, 405, { message: \"Method tidak didukung.\" });\n  } catch (error) {\n    sendJson(res, 500, { message: \"Server error.\" });\n  }\n});\n\nserver.listen(PORT, () => {\n  console.log(`Bekal10 jalan di http://localhost:${PORT}`);\n});\n\nfunction loadEnv() {\n  const envPath = path.join(process.cwd(), \".env\");\n  if (!fs.existsSync(envPath)) return;\n\n  const lines = fs.readFileSync(envPath, \"utf8\").split(/\\r?\\n/);\n  lines.forEach((line) => {\n    const trimmed = line.trim();\n    if (!trimmed || trimmed.startsWith(\"#\")) return;\n\n    const separator = trimmed.indexOf(\"=\");\n    if (separator === -1) return;\n\n    const key = trimmed.slice(0, separator).trim();\n    const value = trimmed.slice(separator + 1).trim().replace(/^[\"']|[\"']$/g, \"\");\n    if (!process.env[key]) process.env[key] = value;\n  });\n}\n\nfunction serveStatic(req, res) {\n  const urlPath = req.url === \"/\" ? \"/index.html\" : decodeURIComponent(req.url.split(\"?\")[0]);\n  const filePath = path.normalize(path.join(PUBLIC_DIR, urlPath));\n  const fileName = path.basename(filePath);\n\n  if (!filePath.startsWith(PUBLIC_DIR) || fileName === \".env\") {\n    res.writeHead(403);\n    res.end(\"Forbidden\");\n    return;\n  }\n\n  fs.readFile(filePath, (error, content) => {\n    if (error) {\n      res.writeHead(404);\n      res.end(\"Not found\");\n      return;\n    }\n\n    res.writeHead(200, {\n      \"Content-Type\": mimeTypes[path.extname(filePath)] || \"application/octet-stream\",\n    });\n    res.end(content);\n  });\n}\n\nasync function handleChat(req, res) {\n  if (!process.env.DEEPSEEK_API_KEY) {\n    sendJson(res, 500, { message: \"DEEPSEEK_API_KEY belum ada di .env.\" });\n    return;\n  }\n\n  const body = await readJson(req);\n  const apiResponse = await fetch(`${DEEPSEEK_BASE_URL}/chat/completions`, {\n    method: \"POST\",\n    headers: {\n      Authorization: `Bearer ${process.env.DEEPSEEK_API_KEY}`,\n      \"Content-Type\": \"application/json\",\n    },\n    body: JSON.stringify({\n      model: DEEPSEEK_MODEL,\n      messages: buildChatMessages(body),\n      temperature: 0.2,\n      max_tokens: 1200,\n      stream: false,\n      user_id: sanitizeUserId(body.participant?.id || \"bekal10-user\"),\n    }),\n  });\n\n  const data = await apiResponse.json().catch(() => ({}));\n\n  if (!apiResponse.ok) {\n    sendJson(res, apiResponse.status, {\n      message: data.error?.message || \"Gagal memanggil DeepSeek.\",\n    });\n    return;\n  }\n\n  const reply = cleanReply(getDeepSeekReply(data)) || buildFallbackReply(body);\n  sendJson(res, 200, { reply });\n}\n\nasync function handleSendResults(req, res) {\n  const body = await readJson(req);\n  const savedPath = saveResultJson(body);\n  const userEmailResult = await sendUserAttemptEmail(body);\n  const adminEmailResult = await sendAdminResultsEmail(body);\n\n  sendJson(res, 200, {\n    ok: true,\n    saved: true,\n    emailSent: adminEmailResult.sent,\n    adminEmailSent: adminEmailResult.sent,\n    userEmailSent: userEmailResult.sent,\n    jsonFile: savedPath,\n    message: buildSendResultsMessage(userEmailResult, adminEmailResult),\n  });\n}\n\nasync function sendUserAttemptEmail(body) {\n  const participant = body.participant || {};\n  const attempt = body.attempt || {};\n  const recipient = String(participant.email || \"\").trim();\n  const testLabel = attempt.testLabel || \"tes\";\n\n  if (!attempt.testId || !attempt.scores) {\n    return { sent: false, skipped: true, reason: \"NO_ATTEMPT\", message: \"Tidak ada hasil tes baru untuk email peserta.\" };\n  }\n\n  if (!isValidEmailAddress(recipient)) {\n    return { sent: false, skipped: true, reason: \"NO_USER_EMAIL\", message: \"Email peserta belum valid.\" };\n  }\n\n  const smtpConfig = getSmtpConfig([recipient]);\n  if (!smtpConfig.ready) {\n    return { sent: false, skipped: true, reason: \"SMTP_MISSING\", message: \"SMTP belum lengkap, email peserta belum terkirim.\" };\n  }\n\n  const email = await buildUserResultsEmail(body);\n  try {\n    await sendSmtpMail({\n      ...smtpConfig,\n      subject: `Hasil ${testLabel} Bekal10`,\n      text: email.text,\n      html: email.html,\n    });\n\n    return { sent: true, skipped: false, reason: \"SENT\", message: `Email hasil ${testLabel} terkirim ke peserta.` };\n  } catch (error) {\n    return { sent: false, skipped: false, reason: \"USER_EMAIL_FAILED\", message: `Email hasil ${testLabel} gagal dikirim ke peserta.` };\n  }\n}\n\nasync function sendAdminResultsEmail(body) {\n  const riasec = body.riasec;\n  const vark = body.vark;\n\n  if (!riasec || !vark) {\n    return { sent: false, skipped: true, reason: \"WAITING_FOR_BOTH_TESTS\", message: \"Rekap admin dikirim setelah RIASEC dan VARK selesai.\" };\n  }\n\n  const fingerprint = `${riasec.id}:${vark.id}`;\n  if (body.participant?.emailSentFingerprint === fingerprint) {\n    return { sent: false, skipped: true, reason: \"ADMIN_ALREADY_SENT\", message: \"Rekap admin sudah pernah dikirim.\" };\n  }\n\n  const smtpConfig = getSmtpConfig();\n  if (!smtpConfig.ready) {\n    return { sent: false, skipped: true, reason: \"SMTP_MISSING\", message: \"SMTP belum lengkap, rekap admin belum terkirim.\" };\n  }\n\n  const email = buildResultsEmail(body);\n  try {\n    await sendSmtpMail({\n      ...smtpConfig,\n      subject: `Hasil Tes Bekal10 ${body.participant?.name || \"Peserta\"}`,\n      text: email.text,\n      html: email.html,\n    });\n\n    return { sent: true, skipped: false, reason: \"SENT\", message: \"Rekap admin terkirim.\" };\n  } catch (error) {\n    return { sent: false, skipped: false, reason: \"ADMIN_EMAIL_FAILED\", message: \"Rekap admin gagal dikirim.\" };\n  }\n}\n\nfunction buildSendResultsMessage(userEmailResult, adminEmailResult) {\n  return [\n    \"JSON tersimpan.\",\n    userEmailResult.message,\n    adminEmailResult.message,\n  ].filter(Boolean).join(\" \");\n}\n\nfunction buildChatMessages(body) {\n  const scope = body.testId === \"vark\"\n    ? \"VARK, gaya belajar, hasil skor VARK, saran belajar, rekomendasi jurusan/prodi/kuliah/kampus, dan hubungan gaya belajar dengan pilihan studi. Jika hasil RIASEC tersedia, gunakan sebagai dasar utama.\"\n    : \"RIASEC, minat karier, hasil skor RIASEC, saran jurusan/prodi/kuliah/kampus, arah karier, dan cara mengembangkan minat.\";\n\n  const scores = body.result?.scores\n    ? Object.entries(body.result.scores)\n        .map(([key, value]) => `${body.traits?.[key] || key}: ${value}`)\n        .join(\", \")\n    : \"belum ada\";\n  const riasecScores = formatScores(body.latestResults?.riasec?.scores, body.labels?.riasec);\n  const varkScores = formatScores(body.latestResults?.vark?.scores, body.labels?.vark);\n\n  const system = [\n    \"Kamu adalah chatbot Bekal10.\",\n    \"Jawab dalam Bahasa Indonesia.\",\n    \"Jawaban harus rapi, jelas, dan tidak terlalu panjang.\",\n    \"Jangan menulis semuanya dalam satu paragraf panjang.\",\n    \"Gunakan maksimal 2 paragraf pendek dan maksimal 5 poin list.\",\n    \"Selesaikan jawaban secara utuh, jangan berhenti di tengah kalimat.\",\n    \"Gunakan markdown sederhana untuk penekanan, misalnya **Social (21)**.\",\n    `Topik yang boleh dibahas hanya: ${scope}`,\n    \"Pertanyaan tentang jurusan, prodi, kuliah, kampus, SMK/SMA lanjut, pekerjaan, portofolio, dan cara belajar masih termasuk topik.\",\n    \"Kalau pertanyaan benar-benar di luar topik pendidikan/tes, jawab singkat: Maaf, aku hanya bisa membahas hasil tes dan rencana pendidikan/karier.\",\n    \"Kalau user bertanya jurusan/prodi/kuliah/kampus, berikan rekomendasi praktis. Gunakan RIASEC sebagai dasar utama dan VARK sebagai pendukung cara belajar.\",\n    `Nama peserta: ${body.participant?.name || \"-\"}.`,\n    `Tes aktif: ${body.testLabel || body.testId}.`,\n    `Skor tes aktif: ${scores}.`,\n    `Skor RIASEC terbaru: ${riasecScores || \"belum ada\"}.`,\n    `Skor VARK terbaru: ${varkScores || \"belum ada\"}.`,\n  ].join(\"\\n\");\n\n  const history = Array.isArray(body.history) ? body.history.slice(-8) : [];\n  const mappedHistory = history\n    .filter((item) => item.text && item.text !== \"Menjawab...\")\n    .map((item) => ({\n      role: item.sender === \"user\" ? \"user\" : \"assistant\",\n      content: String(item.text).slice(0, 1800),\n    }));\n\n  return [\n    { role: \"system\", content: system },\n    ...mappedHistory,\n    { role: \"user\", content: String(body.message || \"\").slice(0, 1800) },\n  ];\n}\n\nfunction getDeepSeekReply(data) {\n  return data.choices?.[0]?.message?.content\n    || data.choices?.[0]?.delta?.content\n    || data.choices?.[0]?.text\n    || \"\";\n}\n\nfunction cleanReply(value) {\n  const reply = String(value || \"\").trim();\n  if (!reply) return \"\";\n  if (/^tidak ada balasan\\.?$/i.test(reply)) return \"\";\n  if (/^null$/i.test(reply)) return \"\";\n  return reply;\n}\n\nfunction formatScores(scores = {}, labels = {}) {\n  return Object.entries(scores)\n    .sort((a, b) => b[1] - a[1])\n    .map(([key, value]) => `${labels[key] || key}: ${value}`)\n    .join(\", \");\n}\n\nfunction buildFallbackReply(body) {\n  const message = String(body.message || \"\").toLowerCase();\n  const riasecScores = body.latestResults?.riasec?.scores;\n  const varkScores = body.latestResults?.vark?.scores || body.result?.scores;\n  const riasecTop = topScores(riasecScores, body.labels?.riasec);\n  const varkTop = topScores(varkScores, body.labels?.vark || body.traits);\n\n  if (isEducationQuestion(message)) {\n    if (riasecTop.length) {\n      const recommendations = recommendMajorsByRiasec(riasecTop[0].key);\n      return [\n        `Berdasarkan hasilmu, tipe terkuat adalah **${riasecTop.map((item) => `${item.label} (${item.score})`).join(\"**, **\")}**.`,\n        \"\",\n        \"Rekomendasi jurusan awal:\",\n        ...recommendations.map((item, index) => `${index + 1}. **${item}**`),\n        \"\",\n        varkTop.length\n          ? `Hasil VARK kamu yang kuat: **${varkTop.map((item) => item.label).join(\", \")}**. Gunakan itu untuk memilih cara belajar, bukan sebagai satu-satunya dasar memilih jurusan.`\n          : \"Untuk lebih akurat, selesaikan juga Tes VARK.\",\n      ].join(\"\\n\");\n    }\n\n    if (varkTop.length) {\n      return [\n        `Dari VARK, gaya belajar kuat kamu adalah **${varkTop.map((item) => `${item.label} (${item.score})`).join(\"**, **\")}**.`,\n        \"\",\n        \"VARK bukan tes minat jurusan, tapi bisa jadi pendukung. Jurusan yang banyak cocok dengan gaya belajar praktik/diskusi antara lain:\",\n        \"1. **Pendidikan**\",\n        \"2. **Komunikasi**\",\n        \"3. **Keperawatan**\",\n        \"4. **Pariwisata**\",\n        \"5. **Desain atau bidang praktikum**\",\n        \"\",\n        \"Untuk rekomendasi jurusan yang lebih tepat, selesaikan juga Tes RIASEC.\",\n      ].join(\"\\n\");\n    }\n  }\n\n  if (body.testId === \"vark\") {\n    return [\n      `Hasil VARK kamu yang menonjol: **${varkTop.map((item) => `${item.label} (${item.score})`).join(\"**, **\") || \"belum ada\"}**.`,\n      \"\",\n      \"Gunakan hasil ini untuk memilih cara belajar yang paling nyaman.\",\n      \"Kalau mau rekomendasi jurusan, hasil RIASEC lebih tepat dijadikan dasar utama.\",\n    ].join(\"\\n\");\n  }\n\n  return [\n    `Hasil RIASEC kamu yang menonjol: **${riasecTop.map((item) => `${item.label} (${item.score})`).join(\"**, **\") || \"belum ada\"}**.`,\n    \"\",\n    \"Kamu bisa tanya rekomendasi jurusan, karier, atau cara mengembangkan minat dari hasil ini.\",\n  ].join(\"\\n\");\n}\n\nfunction isEducationQuestion(message) {\n  return [\n    \"jurusan\",\n    \"prodi\",\n    \"kuliah\",\n    \"kampus\",\n    \"universitas\",\n    \"politeknik\",\n    \"sekolah\",\n    \"smk\",\n    \"sma\",\n    \"karier\",\n    \"kerja\",\n    \"pekerjaan\",\n    \"dimana\",\n    \"di mana\",\n  ].some((keyword) => message.includes(keyword));\n}\n\nfunction topScores(scores = {}, labels = {}) {\n  const sorted = Object.entries(scores)\n    .map(([key, score]) => ({ key, label: labels[key] || key, score }))\n    .sort((a, b) => b.score - a.score);\n\n  if (!sorted.length) return [];\n  const topScore = sorted[0].score;\n  return sorted.filter((item) => item.score === topScore);\n}\n\nfunction recommendMajorsByRiasec(trait) {\n  const map = {\n    realistic: [\"Teknik Mesin\", \"Teknik Elektro\", \"Teknik Sipil\", \"Agribisnis\", \"Desain Produk\"],\n    investigative: [\"Kedokteran\", \"Farmasi\", \"Data Science\", \"Teknik Informatika\", \"Biologi\"],\n    artistic: [\"Desain Komunikasi Visual\", \"Seni Rupa\", \"Film\", \"Sastra\", \"Arsitektur\"],\n    social: [\"Pendidikan\", \"Bimbingan dan Konseling\", \"Psikologi\", \"Keperawatan\", \"Ilmu Komunikasi\"],\n    enterprising: [\"Manajemen\", \"Bisnis Digital\", \"Marketing\", \"Ilmu Komunikasi\", \"Hukum\"],\n    conventional: [\"Akuntansi\", \"Administrasi Bisnis\", \"Manajemen Perkantoran\", \"Sistem Informasi\", \"Perpajakan\"],\n  };\n\n  return map[trait] || [\"Manajemen\", \"Ilmu Komunikasi\", \"Sistem Informasi\", \"Pendidikan\", \"Bisnis Digital\"];\n}\n\nfunction getSmtpConfig(toOverride = null) {\n  const user = process.env.SMTP_USER || process.env.EMAIL_USER;\n  const pass = (process.env.SMTP_PASS || process.env.EMAIL_PASS || \"\").replace(/\\s+/g, \"\");\n  const from = process.env.SMTP_FROM || user;\n  const to = Array.isArray(toOverride)\n    ? toOverride.filter(isValidEmailAddress)\n    : splitEmails(process.env.SMTP_TO || process.env.EMAIL_TO);\n\n  return {\n    ready: Boolean(user && pass && from && to.length),\n    host: process.env.SMTP_HOST || \"smtp.gmail.com\",\n    port: Number(process.env.SMTP_PORT || 465),\n    user,\n    pass,\n    from,\n    to,\n  };\n}\n\nfunction buildResultsEmail(body) {\n  const participant = body.participant || {};\n  const attempt = body.attempt || {};\n  const riasecRows = scoreRows(body.riasec?.scores, body.labels?.riasec);\n  const varkRows = scoreRows(body.vark?.scores, body.labels?.vark);\n\n  const text = [\n    \"Hasil Tes Bekal10\",\n    \"\",\n    `Tes selesai: ${attempt.testLabel || \"-\"}`,\n    `Waktu submit: ${formatDate(attempt.createdAt)}`,\n    \"\",\n    `Nama: ${participant.name || \"-\"}`,\n    `Kelas: ${participant.studentClass || \"-\"}`,\n    `Umur: ${participant.age || \"-\"}`,\n    `No. HP: ${participant.phone || \"-\"}`,\n    `Email: ${participant.email || \"-\"}`,\n    \"\",\n    \"Hasil RIASEC:\",\n    ...(riasecRows.length ? riasecRows.map((row) => `- ${row.label}: ${row.score}`) : [\"- Belum selesai\"]),\n    \"\",\n    \"Hasil VARK:\",\n    ...(varkRows.length ? varkRows.map((row) => `- ${row.label}: ${row.score}`) : [\"- Belum selesai\"]),\n  ].join(\"\\n\");\n\n  const html = `\n    <h2>Hasil Tes Bekal10</h2>\n    <p><strong>Tes selesai:</strong> ${escapeHtml(attempt.testLabel || \"-\")}</p>\n    <p><strong>Waktu submit:</strong> ${escapeHtml(formatDate(attempt.createdAt))}</p>\n    <h3>Data Peserta</h3>\n    <table cellpadding=\"6\" cellspacing=\"0\" border=\"1\">\n      <tr><td>Nama</td><td>${escapeHtml(participant.name || \"-\")}</td></tr>\n      <tr><td>Kelas</td><td>${escapeHtml(participant.studentClass || \"-\")}</td></tr>\n      <tr><td>Umur</td><td>${escapeHtml(participant.age || \"-\")}</td></tr>\n      <tr><td>No. HP</td><td>${escapeHtml(participant.phone || \"-\")}</td></tr>\n      <tr><td>Email</td><td>${escapeHtml(participant.email || \"-\")}</td></tr>\n    </table>\n    <h3>Hasil RIASEC</h3>\n    ${riasecRows.length ? scoreTable(riasecRows) : \"<p>Belum selesai.</p>\"}\n    <h3>Hasil VARK</h3>\n    ${varkRows.length ? scoreTable(varkRows) : \"<p>Belum selesai.</p>\"}\n  `;\n\n  return { text, html };\n}\n\nasync function buildUserResultsEmail(body) {\n  const participant = body.participant || {};\n  const attempt = body.attempt || {};\n  const labels = body.labels?.[attempt.testId] || {};\n  const rows = scoreRows(attempt.scores, labels);\n  const topRows = getTopScoreRows(rows);\n  const summary = await buildAiEmailSummary(body, rows);\n  const testLabel = attempt.testLabel || \"Tes Bekal10\";\n\n  const text = [\n    `Hasil ${testLabel} Bekal10`,\n    \"\",\n    `Halo ${participant.name || \"Peserta\"},`,\n    `Tes selesai: ${testLabel}`,\n    `Waktu submit: ${formatDate(attempt.createdAt)}`,\n    \"\",\n    `Kategori tertinggi: ${topRows.map((row) => `${row.label} (${row.score})`).join(\", \") || \"-\"}`,\n    \"\",\n    \"Skor:\",\n    ...(rows.length ? rows.map((row) => `- ${row.label}: ${row.score}`) : [\"- Belum ada skor\"]),\n    \"\",\n    \"Ringkasan:\",\n    summary,\n  ].join(\"\\n\");\n\n  const html = buildUserResultsEmailHtml({\n    participant,\n    attempt,\n    rows,\n    summary,\n    testLabel,\n    topRows,\n  });\n\n  return { text, html };\n}\n\nasync function buildAiEmailSummary(body, rows) {\n  const fallback = buildFallbackEmailSummary(body, rows);\n  if (!process.env.DEEPSEEK_API_KEY) return fallback;\n\n  try {\n    const apiResponse = await fetch(`${DEEPSEEK_BASE_URL}/chat/completions`, {\n      method: \"POST\",\n      headers: {\n        Authorization: `Bearer ${process.env.DEEPSEEK_API_KEY}`,\n        \"Content-Type\": \"application/json\",\n      },\n      body: JSON.stringify({\n        model: DEEPSEEK_MODEL,\n        messages: buildEmailSummaryMessages(body, rows),\n        temperature: 0.2,\n        max_tokens: 550,\n        stream: false,\n        user_id: sanitizeUserId(body.participant?.id || \"bekal10-user\"),\n      }),\n    });\n\n    const data = await apiResponse.json().catch(() => ({}));\n    if (!apiResponse.ok) return fallback;\n\n    return cleanReply(getDeepSeekReply(data)) || fallback;\n  } catch (error) {\n    return fallback;\n  }\n}\n\nfunction buildEmailSummaryMessages(body, rows) {\n  const participant = body.participant || {};\n  const attempt = body.attempt || {};\n  const labels = body.labels || {};\n  const scoreText = rows.map((row) => `${row.label}: ${row.score}`).join(\", \");\n  const riasecScores = formatScores(body.riasec?.scores, labels.riasec);\n  const varkScores = formatScores(body.vark?.scores, labels.vark);\n\n  return [\n    {\n      role: \"system\",\n      content: [\n        \"Kamu menulis ringkasan hasil tes Bekal10 untuk email peserta.\",\n        \"Jawab dalam Bahasa Indonesia.\",\n        \"Gunakan plain text saja, tanpa markdown tebal dan tanpa tabel.\",\n        \"Tulis 1 paragraf pembuka pendek dan 3 bullet yang diawali tanda '-'.\",\n        \"Fokus pada tes yang baru selesai. Jika hasil tes lain tersedia, sebutkan hanya sebagai konteks pendukung.\",\n        \"Jangan memberi diagnosis psikologis, jangan membuat klaim pasti, dan jangan terlalu panjang.\",\n      ].join(\"\\n\"),\n    },\n    {\n      role: \"user\",\n      content: [\n        `Nama: ${participant.name || \"Peserta\"}`,\n        `Kelas: ${participant.studentClass || \"-\"}`,\n        `Umur: ${participant.age || \"-\"}`,\n        `Tes yang baru selesai: ${attempt.testLabel || attempt.testId || \"-\"}`,\n        `Skor tes ini: ${scoreText || \"belum ada\"}`,\n        `Skor RIASEC terbaru: ${riasecScores || \"belum ada\"}`,\n        `Skor VARK terbaru: ${varkScores || \"belum ada\"}`,\n      ].join(\"\\n\"),\n    },\n  ];\n}\n\nfunction buildFallbackEmailSummary(body, rows) {\n  const attempt = body.attempt || {};\n  const topRows = getTopScoreRows(rows);\n  const topText = topRows.map((row) => `${row.label} (${row.score})`).join(\", \") || \"belum terlihat jelas\";\n\n  if (attempt.testId === \"vark\") {\n    return [\n      `Hasil VARK kamu paling menonjol pada ${topText}. Ini bisa dipakai untuk memilih cara belajar yang terasa paling nyaman.`,\n      \"- Gunakan gaya belajar terkuat sebagai strategi utama saat memahami materi baru.\",\n      \"- Kombinasikan dengan gaya belajar lain agar proses belajar tidak terlalu sempit.\",\n      \"- Jika ingin memilih jurusan atau karier, jadikan hasil RIASEC sebagai dasar utama dan VARK sebagai pendukung cara belajar.\",\n    ].join(\"\\n\");\n  }\n\n  const recommendations = topRows.length ? recommendMajorsByRiasec(topRows[0].key) : [];\n  return [\n    `Hasil RIASEC kamu paling menonjol pada ${topText}. Ini menunjukkan area minat yang bisa mulai kamu eksplorasi lebih serius.`,\n    \"- Perhatikan aktivitas yang membuat kamu nyaman, penasaran, dan tahan mengerjakannya lebih lama.\",\n    \"- Gunakan hasil ini sebagai titik awal diskusi jurusan, kegiatan, portofolio, atau pilihan karier.\",\n    recommendations.length\n      ? `- Rekomendasi awal yang bisa dipertimbangkan: ${recommendations.slice(0, 3).join(\", \")}.`\n      : \"- Lengkapi juga tes lain agar gambaran belajar dan minat kamu lebih utuh.\",\n  ].join(\"\\n\");\n}\n\nfunction buildUserResultsEmailHtml({ participant, attempt, rows, summary, testLabel, topRows }) {\n  const topText = topRows.map((row) => `${row.label} (${row.score})`).join(\", \") || \"-\";\n  const preheader = `Hasil ${testLabel} kamu sudah siap.`;\n\n  return `\n    <div style=\"display:none;max-height:0;overflow:hidden;opacity:0;color:transparent;\">${escapeHtml(preheader)}</div>\n    <table role=\"presentation\" width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" style=\"margin:0;padding:0;background:#f4f4f0;font-family:Arial,Helvetica,sans-serif;color:#111111;\">\n      <tr>\n        <td align=\"center\" style=\"padding:28px 14px;\">\n          <table role=\"presentation\" width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" style=\"max-width:680px;background:#ffffff;border:2px solid #111111;border-radius:8px;overflow:hidden;\">\n            <tr>\n              <td style=\"background:#ffd000;border-bottom:2px solid #111111;padding:24px 26px;\">\n                <div style=\"font-size:12px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:#111111;\">Bekal10</div>\n                <h1 style=\"margin:8px 0 0;font-size:28px;line-height:1.15;color:#111111;\">Hasil ${escapeHtml(testLabel)}</h1>\n              </td>\n            </tr>\n            <tr>\n              <td style=\"padding:24px 26px;\">\n                <p style=\"margin:0 0 12px;font-size:16px;line-height:1.6;\">Halo <strong>${escapeHtml(participant.name || \"Peserta\")}</strong>, ini hasil tes yang baru kamu selesaikan.</p>\n                <table role=\"presentation\" width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" style=\"margin:18px 0;border:1px solid #dddddd;border-radius:8px;\">\n                  <tr>\n                    <td style=\"padding:12px 14px;border-bottom:1px solid #eeeeee;font-size:13px;color:#666666;\">Tes selesai</td>\n                    <td style=\"padding:12px 14px;border-bottom:1px solid #eeeeee;font-size:13px;font-weight:700;text-align:right;\">${escapeHtml(testLabel)}</td>\n                  </tr>\n                  <tr>\n                    <td style=\"padding:12px 14px;border-bottom:1px solid #eeeeee;font-size:13px;color:#666666;\">Waktu submit</td>\n                    <td style=\"padding:12px 14px;border-bottom:1px solid #eeeeee;font-size:13px;font-weight:700;text-align:right;\">${escapeHtml(formatDate(attempt.createdAt))}</td>\n                  </tr>\n                  <tr>\n                    <td style=\"padding:12px 14px;font-size:13px;color:#666666;\">Kategori tertinggi</td>\n                    <td style=\"padding:12px 14px;font-size:13px;font-weight:700;text-align:right;\">${escapeHtml(topText)}</td>\n                  </tr>\n                </table>\n\n                <h2 style=\"margin:22px 0 12px;font-size:18px;line-height:1.3;color:#111111;\">Skor</h2>\n                ${scoreEmailTable(rows, attempt.testId)}\n\n                <h2 style=\"margin:24px 0 12px;font-size:18px;line-height:1.3;color:#111111;\">Ringkasan AI</h2>\n                <div style=\"border-left:4px solid #ffd000;padding:2px 0 2px 14px;\">\n                  ${summaryToHtml(summary)}\n                </div>\n\n                <p style=\"margin:24px 0 0;font-size:12px;line-height:1.6;color:#666666;\">Hasil ini adalah bahan refleksi awal, bukan penentu tunggal pilihan jurusan atau karier. Gunakan bersama diskusi dengan orang tua, guru, atau konselor.</p>\n              </td>\n            </tr>\n          </table>\n        </td>\n      </tr>\n    </table>\n  `;\n}\n\nfunction scoreEmailTable(rows, testId) {\n  if (!rows.length) return `<p style=\"margin:0;font-size:14px;line-height:1.6;\">Belum ada skor.</p>`;\n\n  const maxScore = maxScoreForTest(testId, rows);\n  const body = rows.map((row) => {\n    const percent = Math.max(0, Math.min(100, Math.round((Number(row.score) / maxScore) * 100)));\n    return `\n      <tr>\n        <td style=\"padding:12px 0;border-bottom:1px solid #eeeeee;\">\n          <div style=\"font-size:14px;font-weight:700;color:#111111;\">${escapeHtml(row.label)}</div>\n          <div style=\"margin-top:8px;background:#eeeeee;border-radius:999px;height:8px;overflow:hidden;\">\n            <div style=\"background:#111111;width:${percent}%;height:8px;line-height:8px;\">&nbsp;</div>\n          </div>\n        </td>\n        <td style=\"padding:12px 0 12px 14px;border-bottom:1px solid #eeeeee;text-align:right;font-size:14px;font-weight:700;color:#111111;white-space:nowrap;\">${escapeHtml(row.score)} / ${escapeHtml(maxScore)}</td>\n      </tr>\n    `;\n  }).join(\"\");\n\n  return `<table role=\"presentation\" width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" style=\"border-collapse:collapse;\">${body}</table>`;\n}\n\nfunction summaryToHtml(summary) {\n  const lines = String(summary || \"\").split(/\\r?\\n/).map((line) => line.trim()).filter(Boolean);\n  const paragraphs = [];\n  const bullets = [];\n\n  lines.forEach((line) => {\n    if (/^[-*]\\s+/.test(line)) {\n      bullets.push(line.replace(/^[-*]\\s+/, \"\"));\n    } else {\n      paragraphs.push(line);\n    }\n  });\n\n  const paragraphHtml = paragraphs\n    .map((line) => `<p style=\"margin:0 0 10px;font-size:14px;line-height:1.6;color:#222222;\">${escapeHtml(line)}</p>`)\n    .join(\"\");\n  const bulletHtml = bullets.length\n    ? `<ul style=\"margin:8px 0 0 18px;padding:0;font-size:14px;line-height:1.6;color:#222222;\">${bullets.map((line) => `<li style=\"margin:0 0 8px;\">${escapeHtml(line)}</li>`).join(\"\")}</ul>`\n    : \"\";\n\n  return paragraphHtml + bulletHtml;\n}\n\nfunction saveResultJson(body) {\n  const resultDir = path.resolve(process.cwd(), process.env.RESULT_DIR || \"data/results\");\n  fs.mkdirSync(resultDir, { recursive: true });\n\n  const participantName = safeFilePart(body.participant?.name || \"peserta\");\n  const testId = safeFilePart(body.attempt?.testId || \"test\");\n  const timestamp = new Date().toISOString().replace(/[:.]/g, \"-\");\n  const fileName = `${timestamp}_${participantName}_${testId}.json`;\n  const filePath = path.join(resultDir, fileName);\n  const payload = {\n    savedAt: new Date().toISOString(),\n    participant: body.participant || null,\n    submittedTest: body.attempt || null,\n    latestResults: {\n      riasec: body.riasec || null,\n      vark: body.vark || null,\n    },\n  };\n\n  fs.writeFileSync(filePath, JSON.stringify(payload, null, 2), \"utf8\");\n  upsertHasilJson(resultDir, payload);\n  return path.relative(process.cwd(), filePath).replace(/\\\\/g, \"/\");\n}\n\nfunction upsertHasilJson(resultDir, payload) {\n  const hasilPath = path.join(resultDir, \"hasil.json\");\n  let collection = [];\n\n  if (fs.existsSync(hasilPath)) {\n    try {\n      const existing = JSON.parse(fs.readFileSync(hasilPath, \"utf8\"));\n      collection = Array.isArray(existing) ? existing : [];\n    } catch {\n      collection = [];\n    }\n  }\n\n  const participantId = payload.participant?.id;\n  const existingIndex = collection.findIndex((item) => item.participant?.id === participantId);\n\n  if (existingIndex >= 0) {\n    collection[existingIndex] = payload;\n  } else {\n    collection.push(payload);\n  }\n\n  fs.writeFileSync(hasilPath, JSON.stringify(collection, null, 2), \"utf8\");\n}\n\nfunction safeFilePart(value) {\n  return String(value)\n    .trim()\n    .replace(/[^a-zA-Z0-9_-]+/g, \"-\")\n    .replace(/^-+|-+$/g, \"\")\n    .slice(0, 60) || \"data\";\n}\n\nfunction scoreRows(scores = {}, labels = {}) {\n  return Object.entries(scores)\n    .map(([key, score]) => ({\n      key,\n      label: labels[key] || key,\n      score,\n    }))\n    .sort((a, b) => b.score - a.score);\n}\n\nfunction getTopScoreRows(rows) {\n  if (!rows.length) return [];\n  const topScore = rows[0].score;\n  return rows.filter((row) => row.score === topScore);\n}\n\nfunction maxScoreForTest(testId, rows = []) {\n  if (testId === \"riasec\") return 28;\n  if (testId === \"vark\") return 16;\n  return Math.max(1, ...rows.map((row) => Number(row.score) || 0));\n}\n\nfunction formatDate(value) {\n  if (!value) return \"-\";\n  const date = new Date(value);\n  if (Number.isNaN(date.getTime())) return value;\n  return date.toLocaleString(\"id-ID\", { timeZone: \"Asia/Jakarta\" });\n}\n\nfunction scoreTable(rows) {\n  const body = rows\n    .map((row) => `<tr><td>${escapeHtml(row.label)}</td><td>${escapeHtml(row.score)}</td></tr>`)\n    .join(\"\");\n\n  return `<table cellpadding=\"6\" cellspacing=\"0\" border=\"1\"><tr><th>Kategori</th><th>Skor</th></tr>${body}</table>`;\n}\n\nasync function sendSmtpMail({ host, port, user, pass, from, to, subject, text, html }) {\n  const socket = tls.connect({ host, port, servername: host });\n  socket.setEncoding(\"utf8\");\n\n  try {\n    await readSmtp(socket);\n    await smtpCommand(socket, `EHLO localhost`, [250]);\n    await smtpCommand(socket, \"AUTH LOGIN\", [334]);\n    await smtpCommand(socket, Buffer.from(user).toString(\"base64\"), [334]);\n    await smtpCommand(socket, Buffer.from(pass).toString(\"base64\"), [235]);\n    await smtpCommand(socket, `MAIL FROM:<${extractEmail(from)}>`, [250]);\n\n    for (const recipient of to) {\n      await smtpCommand(socket, `RCPT TO:<${extractEmail(recipient)}>`, [250, 251]);\n    }\n\n    await smtpCommand(socket, \"DATA\", [354]);\n    await smtpCommand(socket, buildMimeMessage({ from, to, subject, text, html }), [250], true);\n    await smtpCommand(socket, \"QUIT\", [221]);\n  } finally {\n    socket.end();\n  }\n}\n\nfunction buildMimeMessage({ from, to, subject, text, html }) {\n  const boundary = `bekal10-${Date.now()}`;\n  const encodedSubject = `=?UTF-8?B?${Buffer.from(subject, \"utf8\").toString(\"base64\")}?=`;\n  const lines = [\n    `From: ${from}`,\n    `To: ${to.join(\", \")}`,\n    `Subject: ${encodedSubject}`,\n    \"MIME-Version: 1.0\",\n    `Content-Type: multipart/alternative; boundary=\"${boundary}\"`,\n    \"\",\n    `--${boundary}`,\n    \"Content-Type: text/plain; charset=UTF-8\",\n    \"Content-Transfer-Encoding: 8bit\",\n    \"\",\n    dotStuff(text),\n    \"\",\n    `--${boundary}`,\n    \"Content-Type: text/html; charset=UTF-8\",\n    \"Content-Transfer-Encoding: 8bit\",\n    \"\",\n    dotStuff(html),\n    \"\",\n    `--${boundary}--`,\n    \"\",\n    \".\",\n    \"\",\n  ];\n\n  return lines.join(\"\\r\\n\");\n}\n\nfunction dotStuff(value) {\n  return String(value).replace(/(^|\\r?\\n)\\./g, \"$1..\");\n}\n\nfunction smtpCommand(socket, command, expectedCodes, isData = false) {\n  socket.write(isData ? command : `${command}\\r\\n`);\n  return readSmtp(socket).then((response) => {\n    const code = Number(response.slice(0, 3));\n    if (!expectedCodes.includes(code)) {\n      throw new Error(`SMTP error ${response}`);\n    }\n    return response;\n  });\n}\n\nfunction readSmtp(socket) {\n  return new Promise((resolve, reject) => {\n    let buffer = \"\";\n    const onData = (chunk) => {\n      buffer += chunk;\n      if (/\\r?\\n\\d{3} /.test(buffer) || /^\\d{3} /.test(buffer)) {\n        cleanup();\n        resolve(buffer);\n      }\n    };\n    const onError = (error) => {\n      cleanup();\n      reject(error);\n    };\n    const cleanup = () => {\n      socket.off(\"data\", onData);\n      socket.off(\"error\", onError);\n    };\n\n    socket.on(\"data\", onData);\n    socket.on(\"error\", onError);\n  });\n}\n\nfunction readJson(req) {\n  return new Promise((resolve, reject) => {\n    let raw = \"\";\n    req.on(\"data\", (chunk) => {\n      raw += chunk;\n      if (raw.length > 200_000) req.destroy();\n    });\n    req.on(\"end\", () => {\n      try {\n        resolve(JSON.parse(raw || \"{}\"));\n      } catch (error) {\n        reject(error);\n      }\n    });\n    req.on(\"error\", reject);\n  });\n}\n\nfunction splitEmails(value = \"\") {\n  return String(value)\n    .split(\",\")\n    .map((email) => email.trim())\n    .filter(Boolean);\n}\n\nfunction isValidEmailAddress(value) {\n  return /^[^\\s@]+@[^\\s@]+\\.[^\\s@]+$/.test(String(value || \"\").trim());\n}\n\nfunction extractEmail(value) {\n  const match = String(value).match(/<([^>]+)>/);\n  return (match ? match[1] : value).trim();\n}\n\nfunction sanitizeUserId(value) {\n  return String(value).replace(/[^a-zA-Z0-9_-]/g, \"_\").slice(0, 512);\n}\n\nfunction escapeHtml(value) {\n  return String(value)\n    .replace(/&/g, \"&amp;\")\n    .replace(/</g, \"&lt;\")\n    .replace(/>/g, \"&gt;\")\n    .replace(/\"/g, \"&quot;\")\n    .replace(/'/g, \"&#039;\");\n}\n\nfunction sendJson(res, status, payload) {\n  res.writeHead(status, { \"Content-Type\": \"application/json; charset=utf-8\" });\n  res.end(JSON.stringify(payload));\n}\n"}, "51a198812944db4db2c2dbd488d6481391056f0f": {"t": 1785754033.7873912, "n": 20312, "h": "5d0a2017f3884ca2", "c": "const http = require(\"http\");\nconst fs = require(\"fs\");\nconst path = require(\"path\");\nconst tls = require(\"tls\");\n\nloadEnv();\n\nconst PORT = Number(process.env.PORT || 3000);\nconst PUBLIC_DIR = process.cwd();\nconst DEEPSEEK_BASE_URL = (process.env.DEEPSEEK_BASE_URL || \"https://api.deepseek.com\").replace(/\\/$/, \"\");\nconst DEEPSEEK_MODEL = process.env.DEEPSEEK_MODEL || \"deepseek-v4-flash\";\n\nconst mimeTypes = {\n  \".html\": \"text/html; charset=utf-8\",\n  \".css\": \"text/css; charset=utf-8\",\n  \".js\": \"text/javascript; charset=utf-8\",\n  \".json\": \"application/json; charset=utf-8\",\n};\n\nconst server = http.createServer(async (req, res) => {\n  try {\n    if (req.method === \"POST\" && req.url === \"/api/chat\") {\n      await handleChat(req, res);\n      return;\n    }\n\n    if (req.method === \"POST\" && req.url === \"/api/send-results\") {\n      await handleSendResults(req, res);\n      return;\n    }\n\n    if (req.method === \"GET\") {\n      serveStatic(req, res);\n      return;\n    }\n\n    sendJson(res, 405, { message: \"Method tidak didukung.\" });\n  } catch (error) {\n    sendJson(res, 500, { message: \"Server error.\" });\n  }\n});\n\nserver.listen(PORT, () => {\n  console.log(`Bekal10 jalan di http://localhost:${PORT}`);\n});\n\nfunction loadEnv() {\n  const envPath = path.join(process.cwd(), \".env\");\n  if (!fs.existsSync(envPath)) return;\n\n  const lines = fs.readFileSync(envPath, \"utf8\").split(/\\r?\\n/);\n  lines.forEach((line) => {\n    const trimmed = line.trim();\n    if (!trimmed || trimmed.startsWith(\"#\")) return;\n\n    const separator = trimmed.indexOf(\"=\");\n    if (separator === -1) return;\n\n    const key = trimmed.slice(0, separator).trim();\n    const value = trimmed.slice(separator + 1).trim().replace(/^[\"']|[\"']$/g, \"\");\n    if (!process.env[key]) process.env[key] = value;\n  });\n}\n\nfunction serveStatic(req, res) {\n  const urlPath = req.url === \"/\" ? \"/index.html\" : decodeURIComponent(req.url.split(\"?\")[0]);\n  const filePath = path.normalize(path.join(PUBLIC_DIR, urlPath));\n  const fileName = path.basename(filePath);\n\n  if (!filePath.startsWith(PUBLIC_DIR) || fileName === \".env\") {\n    res.writeHead(403);\n    res.end(\"Forbidden\");\n    return;\n  }\n\n  fs.readFile(filePath, (error, content) => {\n    if (error) {\n      res.writeHead(404);\n      res.end(\"Not found\");\n      return;\n    }\n\n    res.writeHead(200, {\n      \"Content-Type\": mimeTypes[path.extname(filePath)] || \"application/octet-stream\",\n    });\n    res.end(content);\n  });\n}\n\nasync function handleChat(req, res) {\n  if (!process.env.DEEPSEEK_API_KEY) {\n    sendJson(res, 500, { message: \"DEEPSEEK_API_KEY belum ada di .env.\" });\n    return;\n  }\n\n  const body = await readJson(req);\n  const apiResponse = await fetch(`${DEEPSEEK_BASE_URL}/chat/completions`, {\n    method: \"POST\",\n    headers: {\n      Authorization: `Bearer ${process.env.DEEPSEEK_API_KEY}`,\n      \"Content-Type\": \"application/json\",\n    },\n    body: JSON.stringify({\n      model: DEEPSEEK_MODEL,\n      messages: buildChatMessages(body),\n      temperature: 0.2,\n      max_tokens: 1200,\n      stream: false,\n      user_id: sanitizeUserId(body.participant?.id || \"bekal10-user\"),\n    }),\n  });\n\n  const data = await apiResponse.json().catch(() => ({}));\n\n  if (!apiResponse.ok) {\n    sendJson(res, apiResponse.status, {\n      message: data.error?.message || \"Gagal memanggil DeepSeek.\",\n    });\n    return;\n  }\n\n  const reply = cleanReply(getDeepSeekReply(data)) || buildFallbackReply(body);\n  sendJson(res, 200, { reply });\n}\n\nasync function handleSendResults(req, res) {\n  const body = await readJson(req);\n  const savedPath = saveResultJson(body);\n  const riasec = body.riasec;\n  const vark = body.vark;\n\n  if (!riasec || !vark) {\n    sendJson(res, 200, {\n      ok: true,\n      saved: true,\n      emailSent: false,\n      jsonFile: savedPath,\n      message: \"JSON tersimpan. Email dikirim setelah RIASEC dan VARK selesai.\",\n    });\n    return;\n  }\n\n  const fingerprint = `${riasec.id}:${vark.id}`;\n  if (body.participant?.emailSentFingerprint === fingerprint) {\n    sendJson(res, 200, {\n      ok: true,\n      saved: true,\n      emailSent: false,\n      jsonFile: savedPath,\n      message: \"JSON tersimpan. Rekap email sudah pernah dikirim.\",\n    });\n    return;\n  }\n\n  const smtpConfig = getSmtpConfig();\n\n  if (!smtpConfig.ready) {\n    sendJson(res, 200, {\n      ok: true,\n      saved: true,\n      emailSent: false,\n      jsonFile: savedPath,\n      message: \"JSON tersimpan. SMTP belum lengkap di .env.\",\n    });\n    return;\n  }\n\n  const email = buildResultsEmail(body);\n  try {\n    await sendSmtpMail({\n      ...smtpConfig,\n      subject: `Hasil Tes Bekal10 ${body.participant?.name || \"Peserta\"}`,\n      text: email.text,\n      html: email.html,\n    });\n\n    sendJson(res, 200, {\n      ok: true,\n      saved: true,\n      emailSent: true,\n      jsonFile: savedPath,\n      message: \"JSON tersimpan. Rekap email terkirim.\",\n    });\n  } catch (error) {\n    sendJson(res, 200, {\n      ok: true,\n      saved: true,\n      emailSent: false,\n      jsonFile: savedPath,\n      message: \"JSON tersimpan. Email gagal dikirim.\",\n    });\n  }\n}\n\nfunction buildChatMessages(body) {\n  const scope = body.testId === \"vark\"\n    ? \"VARK, gaya belajar, hasil skor VARK, saran belajar, rekomendasi jurusan/prodi/kuliah/kampus, dan hubungan gaya belajar dengan pilihan studi. Jika hasil RIASEC tersedia, gunakan sebagai dasar utama.\"\n    : \"RIASEC, minat karier, hasil skor RIASEC, saran jurusan/prodi/kuliah/kampus, arah karier, dan cara mengembangkan minat.\";\n\n  const scores = body.result?.scores\n    ? Object.entries(body.result.scores)\n        .map(([key, value]) => `${body.traits?.[key] || key}: ${value}`)\n        .join(\", \")\n    : \"belum ada\";\n  const riasecScores = formatScores(body.latestResults?.riasec?.scores, body.labels?.riasec);\n  const varkScores = formatScores(body.latestResults?.vark?.scores, body.labels?.vark);\n\n  const system = [\n    \"Kamu adalah chatbot Bekal10.\",\n    \"Jawab dalam Bahasa Indonesia.\",\n    \"Jawaban harus rapi, jelas, dan tidak terlalu panjang.\",\n    \"Jangan menulis semuanya dalam satu paragraf panjang.\",\n    \"Gunakan maksimal 2 paragraf pendek dan maksimal 5 poin list.\",\n    \"Selesaikan jawaban secara utuh, jangan berhenti di tengah kalimat.\",\n    \"Gunakan markdown sederhana untuk penekanan, misalnya **Social (21)**.\",\n    `Topik yang boleh dibahas hanya: ${scope}`,\n    \"Pertanyaan tentang jurusan, prodi, kuliah, kampus, SMK/SMA lanjut, pekerjaan, portofolio, dan cara belajar masih termasuk topik.\",\n    \"Kalau pertanyaan benar-benar di luar topik pendidikan/tes, jawab singkat: Maaf, aku hanya bisa membahas hasil tes dan rencana pendidikan/karier.\",\n    \"Kalau user bertanya jurusan/prodi/kuliah/kampus, berikan rekomendasi praktis. Gunakan RIASEC sebagai dasar utama dan VARK sebagai pendukung cara belajar.\",\n    `Nama peserta: ${body.participant?.name || \"-\"}.`,\n    `Tes aktif: ${body.testLabel || body.testId}.`,\n    `Skor tes aktif: ${scores}.`,\n    `Skor RIASEC terbaru: ${riasecScores || \"belum ada\"}.`,\n    `Skor VARK terbaru: ${varkScores || \"belum ada\"}.`,\n  ].join(\"\\n\");\n\n  const history = Array.isArray(body.history) ? body.history.slice(-8) : [];\n  const mappedHistory = history\n    .filter((item) => item.text && item.text !== \"Menjawab...\")\n    .map((item) => ({\n      role: item.sender === \"user\" ? \"user\" : \"assistant\",\n      content: String(item.text).slice(0, 1800),\n    }));\n\n  return [\n    { role: \"system\", content: system },\n    ...mappedHistory,\n    { role: \"user\", content: String(body.message || \"\").slice(0, 1800) },\n  ];\n}\n\nfunction getDeepSeekReply(data) {\n  return data.choices?.[0]?.message?.content\n    || data.choices?.[0]?.delta?.content\n    || data.choices?.[0]?.text\n    || \"\";\n}\n\nfunction cleanReply(value) {\n  const reply = String(value || \"\").trim();\n  if (!reply) return \"\";\n  if (/^tidak ada balasan\\.?$/i.test(reply)) return \"\";\n  if (/^null$/i.test(reply)) return \"\";\n  return reply;\n}\n\nfunction formatScores(scores = {}, labels = {}) {\n  return Object.entries(scores)\n    .sort((a, b) => b[1] - a[1])\n    .map(([key, value]) => `${labels[key] || key}: ${value}`)\n    .join(\", \");\n}\n\nfunction buildFallbackReply(body) {\n  const message = String(body.message || \"\").toLowerCase();\n  const riasecScores = body.latestResults?.riasec?.scores;\n  const varkScores = body.latestResults?.vark?.scores || body.result?.scores;\n  const riasecTop = topScores(riasecScores, body.labels?.riasec);\n  const varkTop = topScores(varkScores, body.labels?.vark || body.traits);\n\n  if (isEducationQuestion(message)) {\n    if (riasecTop.length) {\n      const recommendations = recommendMajorsByRiasec(riasecTop[0].key);\n      return [\n        `Berdasarkan hasilmu, tipe terkuat adalah **${riasecTop.map((item) => `${item.label} (${item.score})`).join(\"**, **\")}**.`,\n        \"\",\n        \"Rekomendasi jurusan awal:\",\n        ...recommendations.map((item, index) => `${index + 1}. **${item}**`),\n        \"\",\n        varkTop.length\n          ? `Hasil VARK kamu yang kuat: **${varkTop.map((item) => item.label).join(\", \")}**. Gunakan itu untuk memilih cara belajar, bukan sebagai satu-satunya dasar memilih jurusan.`\n          : \"Untuk lebih akurat, selesaikan juga Tes VARK.\",\n      ].join(\"\\n\");\n    }\n\n    if (varkTop.length) {\n      return [\n        `Dari VARK, gaya belajar kuat kamu adalah **${varkTop.map((item) => `${item.label} (${item.score})`).join(\"**, **\")}**.`,\n        \"\",\n        \"VARK bukan tes minat jurusan, tapi bisa jadi pendukung. Jurusan yang banyak cocok dengan gaya belajar praktik/diskusi antara lain:\",\n        \"1. **Pendidikan**\",\n        \"2. **Komunikasi**\",\n        \"3. **Keperawatan**\",\n        \"4. **Pariwisata**\",\n        \"5. **Desain atau bidang praktikum**\",\n        \"\",\n        \"Untuk rekomendasi jurusan yang lebih tepat, selesaikan juga Tes RIASEC.\",\n      ].join(\"\\n\");\n    }\n  }\n\n  if (body.testId === \"vark\") {\n    return [\n      `Hasil VARK kamu yang menonjol: **${varkTop.map((item) => `${item.label} (${item.score})`).join(\"**, **\") || \"belum ada\"}**.`,\n      \"\",\n      \"Gunakan hasil ini untuk memilih cara belajar yang paling nyaman.\",\n      \"Kalau mau rekomendasi jurusan, hasil RIASEC lebih tepat dijadikan dasar utama.\",\n    ].join(\"\\n\");\n  }\n\n  return [\n    `Hasil RIASEC kamu yang menonjol: **${riasecTop.map((item) => `${item.label} (${item.score})`).join(\"**, **\") || \"belum ada\"}**.`,\n    \"\",\n    \"Kamu bisa tanya rekomendasi jurusan, karier, atau cara mengembangkan minat dari hasil ini.\",\n  ].join(\"\\n\");\n}\n\nfunction isEducationQuestion(message) {\n  return [\n    \"jurusan\",\n    \"prodi\",\n    \"kuliah\",\n    \"kampus\",\n    \"universitas\",\n    \"politeknik\",\n    \"sekolah\",\n    \"smk\",\n    \"sma\",\n    \"karier\",\n    \"kerja\",\n    \"pekerjaan\",\n    \"dimana\",\n    \"di mana\",\n  ].some((keyword) => message.includes(keyword));\n}\n\nfunction topScores(scores = {}, labels = {}) {\n  const sorted = Object.entries(scores)\n    .map(([key, score]) => ({ key, label: labels[key] || key, score }))\n    .sort((a, b) => b.score - a.score);\n\n  if (!sorted.length) return [];\n  const topScore = sorted[0].score;\n  return sorted.filter((item) => item.score === topScore);\n}\n\nfunction recommendMajorsByRiasec(trait) {\n  const map = {\n    realistic: [\"Teknik Mesin\", \"Teknik Elektro\", \"Teknik Sipil\", \"Agribisnis\", \"Desain Produk\"],\n    investigative: [\"Kedokteran\", \"Farmasi\", \"Data Science\", \"Teknik Informatika\", \"Biologi\"],\n    artistic: [\"Desain Komunikasi Visual\", \"Seni Rupa\", \"Film\", \"Sastra\", \"Arsitektur\"],\n    social: [\"Pendidikan\", \"Bimbingan dan Konseling\", \"Psikologi\", \"Keperawatan\", \"Ilmu Komunikasi\"],\n    enterprising: [\"Manajemen\", \"Bisnis Digital\", \"Marketing\", \"Ilmu Komunikasi\", \"Hukum\"],\n    conventional: [\"Akuntansi\", \"Administrasi Bisnis\", \"Manajemen Perkantoran\", \"Sistem Informasi\", \"Perpajakan\"],\n  };\n\n  return map[trait] || [\"Manajemen\", \"Ilmu Komunikasi\", \"Sistem Informasi\", \"Pendidikan\", \"Bisnis Digital\"];\n}\n\nfunction getSmtpConfig() {\n  const user = process.env.SMTP_USER || process.env.EMAIL_USER;\n  const pass = (process.env.SMTP_PASS || process.env.EMAIL_PASS || \"\").replace(/\\s+/g, \"\");\n  const from = process.env.SMTP_FROM || user;\n  const to = splitEmails(process.env.SMTP_TO || process.env.EMAIL_TO);\n\n  return {\n    ready: Boolean(user && pass && from && to.length),\n    host: process.env.SMTP_HOST || \"smtp.gmail.com\",\n    port: Number(process.env.SMTP_PORT || 465),\n    user,\n    pass,\n    from,\n    to,\n  };\n}\n\nfunction buildResultsEmail(body) {\n  const participant = body.participant || {};\n  const attempt = body.attempt || {};\n  const riasecRows = scoreRows(body.riasec?.scores, body.labels?.riasec);\n  const varkRows = scoreRows(body.vark?.scores, body.labels?.vark);\n\n  const text = [\n    \"Hasil Tes Bekal10\",\n    \"\",\n    `Tes selesai: ${attempt.testLabel || \"-\"}`,\n    `Waktu submit: ${formatDate(attempt.createdAt)}`,\n    \"\",\n    `Nama: ${participant.name || \"-\"}`,\n    `Kelas: ${participant.studentClass || \"-\"}`,\n    `Umur: ${participant.age || \"-\"}`,\n    `No. HP: ${participant.phone || \"-\"}`,\n    \"\",\n    \"Hasil RIASEC:\",\n    ...(riasecRows.length ? riasecRows.map((row) => `- ${row.label}: ${row.score}`) : [\"- Belum selesai\"]),\n    \"\",\n    \"Hasil VARK:\",\n    ...(varkRows.length ? varkRows.map((row) => `- ${row.label}: ${row.score}`) : [\"- Belum selesai\"]),\n  ].join(\"\\n\");\n\n  const html = `\n    <h2>Hasil Tes Bekal10</h2>\n    <p><strong>Tes selesai:</strong> ${escapeHtml(attempt.testLabel || \"-\")}</p>\n    <p><strong>Waktu submit:</strong> ${escapeHtml(formatDate(attempt.createdAt))}</p>\n    <h3>Data Peserta</h3>\n    <table cellpadding=\"6\" cellspacing=\"0\" border=\"1\">\n      <tr><td>Nama</td><td>${escapeHtml(participant.name || \"-\")}</td></tr>\n      <tr><td>Kelas</td><td>${escapeHtml(participant.studentClass || \"-\")}</td></tr>\n      <tr><td>Umur</td><td>${escapeHtml(participant.age || \"-\")}</td></tr>\n      <tr><td>No. HP</td><td>${escapeHtml(participant.phone || \"-\")}</td></tr>\n    </table>\n    <h3>Hasil RIASEC</h3>\n    ${riasecRows.length ? scoreTable(riasecRows) : \"<p>Belum selesai.</p>\"}\n    <h3>Hasil VARK</h3>\n    ${varkRows.length ? scoreTable(varkRows) : \"<p>Belum selesai.</p>\"}\n  `;\n\n  return { text, html };\n}\n\nfunction saveResultJson(body) {\n  const resultDir = path.resolve(process.cwd(), process.env.RESULT_DIR || \"data/results\");\n  fs.mkdirSync(resultDir, { recursive: true });\n\n  const participantName = safeFilePart(body.participant?.name || \"peserta\");\n  const testId = safeFilePart(body.attempt?.testId || \"test\");\n  const timestamp = new Date().toISOString().replace(/[:.]/g, \"-\");\n  const fileName = `${timestamp}_${participantName}_${testId}.json`;\n  const filePath = path.join(resultDir, fileName);\n  const payload = {\n    savedAt: new Date().toISOString(),\n    participant: body.participant || null,\n    submittedTest: body.attempt || null,\n    latestResults: {\n      riasec: body.riasec || null,\n      vark: body.vark || null,\n    },\n  };\n\n  fs.writeFileSync(filePath, JSON.stringify(payload, null, 2), \"utf8\");\n  upsertHasilJson(resultDir, payload);\n  return path.relative(process.cwd(), filePath).replace(/\\\\/g, \"/\");\n}\n\nfunction upsertHasilJson(resultDir, payload) {\n  const hasilPath = path.join(resultDir, \"hasil.json\");\n  let collection = [];\n\n  if (fs.existsSync(hasilPath)) {\n    try {\n      const existing = JSON.parse(fs.readFileSync(hasilPath, \"utf8\"));\n      collection = Array.isArray(existing) ? existing : [];\n    } catch {\n      collection = [];\n    }\n  }\n\n  const participantId = payload.participant?.id;\n  const existingIndex = collection.findIndex((item) => item.participant?.id === participantId);\n\n  if (existingIndex >= 0) {\n    collection[existingIndex] = payload;\n  } else {\n    collection.push(payload);\n  }\n\n  fs.writeFileSync(hasilPath, JSON.stringify(collection, null, 2), \"utf8\");\n}\n\nfunction safeFilePart(value) {\n  return String(value)\n    .trim()\n    .replace(/[^a-zA-Z0-9_-]+/g, \"-\")\n    .replace(/^-+|-+$/g, \"\")\n    .slice(0, 60) || \"data\";\n}\n\nfunction scoreRows(scores = {}, labels = {}) {\n  return Object.entries(scores)\n    .map(([key, score]) => ({\n      label: labels[key] || key,\n      score,\n    }))\n    .sort((a, b) => b.score - a.score);\n}\n\nfunction formatDate(value) {\n  if (!value) return \"-\";\n  const date = new Date(value);\n  if (Number.isNaN(date.getTime())) return value;\n  return date.toLocaleString(\"id-ID\", { timeZone: \"Asia/Jakarta\" });\n}\n\nfunction scoreTable(rows) {\n  const body = rows\n    .map((row) => `<tr><td>${escapeHtml(row.label)}</td><td>${escapeHtml(row.score)}</td></tr>`)\n    .join(\"\");\n\n  return `<table cellpadding=\"6\" cellspacing=\"0\" border=\"1\"><tr><th>Kategori</th><th>Skor</th></tr>${body}</table>`;\n}\n\nasync function sendSmtpMail({ host, port, user, pass, from, to, subject, text, html }) {\n  const socket = tls.connect({ host, port, servername: host });\n  socket.setEncoding(\"utf8\");\n\n  try {\n    await readSmtp(socket);\n    await smtpCommand(socket, `EHLO localhost`, [250]);\n    await smtpCommand(socket, \"AUTH LOGIN\", [334]);\n    await smtpCommand(socket, Buffer.from(user).toString(\"base64\"), [334]);\n    await smtpCommand(socket, Buffer.from(pass).toString(\"base64\"), [235]);\n    await smtpCommand(socket, `MAIL FROM:<${extractEmail(from)}>`, [250]);\n\n    for (const recipient of to) {\n      await smtpCommand(socket, `RCPT TO:<${extractEmail(recipient)}>`, [250, 251]);\n    }\n\n    await smtpCommand(socket, \"DATA\", [354]);\n    await smtpCommand(socket, buildMimeMessage({ from, to, subject, text, html }), [250], true);\n    await smtpCommand(socket, \"QUIT\", [221]);\n  } finally {\n    socket.end();\n  }\n}\n\nfunction buildMimeMessage({ from, to, subject, text, html }) {\n  const boundary = `bekal10-${Date.now()}`;\n  const encodedSubject = `=?UTF-8?B?${Buffer.from(subject, \"utf8\").toString(\"base64\")}?=`;\n  const lines = [\n    `From: ${from}`,\n    `To: ${to.join(\", \")}`,\n    `Subject: ${encodedSubject}`,\n    \"MIME-Version: 1.0\",\n    `Content-Type: multipart/alternative; boundary=\"${boundary}\"`,\n    \"\",\n    `--${boundary}`,\n    \"Content-Type: text/plain; charset=UTF-8\",\n    \"Content-Transfer-Encoding: 8bit\",\n    \"\",\n    dotStuff(text),\n    \"\",\n    `--${boundary}`,\n    \"Content-Type: text/html; charset=UTF-8\",\n    \"Content-Transfer-Encoding: 8bit\",\n    \"\",\n    dotStuff(html),\n    \"\",\n    `--${boundary}--`,\n    \"\",\n    \".\",\n    \"\",\n  ];\n\n  return lines.join(\"\\r\\n\");\n}\n\nfunction dotStuff(value) {\n  return String(value).replace(/(^|\\r?\\n)\\./g, \"$1..\");\n}\n\nfunction smtpCommand(socket, command, expectedCodes, isData = false) {\n  socket.write(isData ? command : `${command}\\r\\n`);\n  return readSmtp(socket).then((response) => {\n    const code = Number(response.slice(0, 3));\n    if (!expectedCodes.includes(code)) {\n      throw new Error(`SMTP error ${response}`);\n    }\n    return response;\n  });\n}\n\nfunction readSmtp(socket) {\n  return new Promise((resolve, reject) => {\n    let buffer = \"\";\n    const onData = (chunk) => {\n      buffer += chunk;\n      if (/\\r?\\n\\d{3} /.test(buffer) || /^\\d{3} /.test(buffer)) {\n        cleanup();\n        resolve(buffer);\n      }\n    };\n    const onError = (error) => {\n      cleanup();\n      reject(error);\n    };\n    const cleanup = () => {\n      socket.off(\"data\", onData);\n      socket.off(\"error\", onError);\n    };\n\n    socket.on(\"data\", onData);\n    socket.on(\"error\", onError);\n  });\n}\n\nfunction readJson(req) {\n  return new Promise((resolve, reject) => {\n    let raw = \"\";\n    req.on(\"data\", (chunk) => {\n      raw += chunk;\n      if (raw.length > 200_000) req.destroy();\n    });\n    req.on(\"end\", () => {\n      try {\n        resolve(JSON.parse(raw || \"{}\"));\n      } catch (error) {\n        reject(error);\n      }\n    });\n    req.on(\"error\", reject);\n  });\n}\n\nfunction splitEmails(value = \"\") {\n  return String(value)\n    .split(\",\")\n    .map((email) => email.trim())\n    .filter(Boolean);\n}\n\nfunction extractEmail(value) {\n  const match = String(value).match(/<([^>]+)>/);\n  return (match ? match[1] : value).trim();\n}\n\nfunction sanitizeUserId(value) {\n  return String(value).replace(/[^a-zA-Z0-9_-]/g, \"_\").slice(0, 512);\n}\n\nfunction escapeHtml(value) {\n  return String(value)\n    .replace(/&/g, \"&amp;\")\n    .replace(/</g, \"&lt;\")\n    .replace(/>/g, \"&gt;\")\n    .replace(/\"/g, \"&quot;\")\n    .replace(/'/g, \"&#039;\");\n}\n\nfunction sendJson(res, status, payload) {\n  res.writeHead(status, { \"Content-Type\": \"application/json; charset=utf-8\" });\n  res.end(JSON.stringify(payload));\n}\n"}}}}