{
  "name": "LCBP3 Migration Workflow v2.0.0",
  "nodes": [
    {
      "parameters": {
        "formTitle": "LCBP3 Migration - ตั้งค่าก่อนรัน",
        "formDescription": "กรุณาตั้งค่า Batch และ Excel file ก่อนรัน Migration",
        "formFields": {
          "values": [
            {
              "fieldLabel": "Batch Size",
              "fieldType": "number",
              "placeholder": "10"
            },
            {
              "fieldLabel": "Excel File Path",
              "placeholder": "/home/node/.n8n-files/staging_ai/C22024.xlsx"
            }
          ]
        },
        "options": {}
      },
      "id": "4609ab68-f7e4-4800-ad39-19ce32de60d0",
      "name": "Form Trigger",
      "type": "n8n-nodes-base.formTrigger",
      "typeVersion": 2.2,
      "position": [31024, 13504],
      "webhookId": "e164a362-0c6b-4243-a5ad-b325aa943f4f",
      "notes": "เปิด URL เพื่อตั้งค่าก่อนรัน"
    },
    {
      "parameters": {
        "jsCode": "// ============================================\n// CONFIGURATION v2.0 — ADR-023A Compliant\n// n8n เรียกแค่ DMS Backend API เท่านั้น — ห้ามเรียก Ollama โดยตรง\n// ============================================\nconst formData = $('Form Trigger').first()?.json || {};\nconst batchSizeInput = parseInt(String(formData['Batch Size'] || '0'));\nconst excelFileInput = String(formData['Excel File Path'] || '').trim();\n\nconst BATCH_ID = (() => {\n  const d = new Date(Date.now() + 7 * 3600000);\n  const s = d.toISOString();\n  return s.substring(0,10).replace(/-/g,'') + ':' + s.substring(11,16).replace(/:/g,'');\n})();\n\nconst CONFIG = {\n  // Backend Settings\n  BACKEND_URL: 'https://backend.np-dms.work',\n  MIGRATION_TOKEN: 'Bearer YOUR_MIGRATION_TOKEN_HERE', // 🔴 เปลี่ยน\n\n  // Batch Settings\n  BATCH_SIZE: batchSizeInput > 0 ? batchSizeInput : 10,\n  BATCH_ID: BATCH_ID,\n  DELAY_MS: 2000,\n\n  // AI Job Settings (ADR-023A)\n  AI_JOB_POLL_INTERVAL_MS: 5000,\n  AI_JOB_TIMEOUT_MS: 120000,\n\n  // Confidence Thresholds\n  CONFIDENCE_HIGH: 0.85,\n  CONFIDENCE_LOW: 0.60,\n\n  // Paths (Container paths — ต้องตรงกับ volume mount ใน docker-compose)\n  EXCEL_FILE: excelFileInput || '/home/node/.n8n-files/staging_ai/C22024.xlsx',\n  SOURCE_PDF_DIR: '/home/node/.n8n-files/staging_ai',\n  LOG_PATH: '/home/node/.n8n-files/migration_logs',\n};\n\nreturn [{ json: { config: CONFIG } }];"
      },
      "id": "8f1d3378-cca6-48b6-99db-693e46ac81ef",
      "name": "Set Configuration",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [31216, 13504],
      "notes": "กำหนดค่า Configuration ทั้งหมด — แก้ไขที่นี่เท่านั้น (ไม่มี Ollama config แล้ว)"
    },
    {
      "parameters": {
        "url": "={{$('Set Configuration').first().json.config.BACKEND_URL}}/health",
        "options": {
          "timeout": 5000
        }
      },
      "id": "60e81de6-e9b2-4bff-afcc-bef9d5b959b5",
      "name": "Check Backend Health",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.1,
      "position": [31392, 13504],
      "onError": "continueErrorOutput",
      "notes": "ตรวจสอบ Backend พร้อมใช้งาน"
    },
    {
      "parameters": {
        "url": "={{$('Set Configuration').first().json.config.BACKEND_URL}}/api/auth/me",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "Authorization",
              "value": "={{$('Set Configuration').first().json.config.MIGRATION_TOKEN}}"
            }
          ]
        },
        "options": {
          "timeout": 5000
        }
      },
      "id": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
      "name": "Validate Token",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.1,
      "position": [31392, 13696],
      "onError": "continueErrorOutput",
      "notes": "FR-010a: ตรวจสอบ MIGRATION_TOKEN ก่อนเริ่ม Batch"
    },
    {
      "parameters": {
        "url": "={{$('Set Configuration').first().json.config.BACKEND_URL}}/api/master/correspondence-types",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "Authorization",
              "value": "={{$('Set Configuration').first().json.config.MIGRATION_TOKEN}}"
            }
          ]
        },
        "options": {
          "timeout": 10000
        }
      },
      "id": "6c6679b4-85f3-4c2c-ac8e-4281d6ae61f6",
      "name": "Fetch Categories",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.1,
      "position": [31568, 13504],
      "notes": "ดึง Categories จาก Backend"
    },
    {
      "parameters": {
        "url": "={{$('Set Configuration').first().json.config.BACKEND_URL}}/api/master/tags",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "Authorization",
              "value": "={{$('Set Configuration').first().json.config.MIGRATION_TOKEN}}"
            }
          ]
        },
        "options": {
          "timeout": 10000
        }
      },
      "id": "98b9159a-f21d-4b33-9524-058a78ccfc93",
      "name": "Fetch Tags",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.1,
      "position": [31568, 13696],
      "notes": "ดึง Tags ที่มีอยู่แล้วจาก Backend"
    },
    {
      "parameters": {
        "jsCode": "const fs = require('fs');\nconst config = $('Set Configuration').first().json.config;\n\ntry {\n  if (!fs.existsSync(config.EXCEL_FILE)) {\n    throw new Error(`Excel file not found at: ${config.EXCEL_FILE}`);\n  }\n  if (!fs.existsSync(config.SOURCE_PDF_DIR)) {\n    throw new Error(`PDF Source directory not found at: ${config.SOURCE_PDF_DIR}`);\n  }\n  \n  const files = fs.readdirSync(config.SOURCE_PDF_DIR);\n  \n  // Check write permission to log path\n  fs.writeFileSync(`${config.LOG_PATH}/.preflight_ok`, new Date().toISOString());\n  \n  // Grab categories\n  let categories = ['Correspondence','RFA','Drawing','Transmittal','Report','Other'];\n  try {\n    const upstreamData = $('Fetch Categories').first()?.json?.data;\n    if (upstreamData && Array.isArray(upstreamData)) {\n      categories = upstreamData.map(c => c.name || c.type || c);\n    }\n  } catch(e) {}\n  \n  // Grab existing tags\n  let existingTags = [];\n  try {\n    const tagData = $('Fetch Tags').first()?.json?.data || [];\n    existingTags = Array.isArray(tagData)\n      ? tagData.map(t => ({ publicId: t.id, tagName: t.tag_name || t.name || '' })).filter(t => t.tagName)\n      : [];\n  } catch(e) {}\n    \n  return [{ json: { \n    preflight_ok: true, \n    pdf_count_in_source: files.length,\n    excel_target: config.EXCEL_FILE,\n    system_categories: categories,\n    existing_tags: existingTags,\n    timestamp: new Date().toISOString()\n  }}];\n} catch (err) {\n  throw new Error(`Pre-flight check failed: ${err.message}`);\n}"
      },
      "id": "910b13e2-994a-4fb6-bca1-637e1628c586",
      "name": "File Mount Check",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [31744, 13504],
      "notes": "ตรวจสอบ File System + รวบรวม master data สำหรับ AI payload"
    },
    {
      "parameters": {
        "fileSelector": "={{ $json.excel_target }}",
        "options": {}
      },
      "id": "063bcef1-791a-4923-a659-8b9a0ba3e336",
      "name": "Read Excel Binary",
      "type": "n8n-nodes-base.readWriteFile",
      "typeVersion": 1,
      "position": [31920, 13504],
      "notes": "ดึงไฟล์ Excel ขึ้นมาไว้ในหน่วยความจำ"
    },
    {
      "parameters": {
        "options": {}
      },
      "id": "e07efdde-b9b1-402a-ba01-44175982749b",
      "name": "Read Excel",
      "type": "n8n-nodes-base.spreadsheetFile",
      "typeVersion": 2,
      "position": [31920, 13696],
      "notes": "แปลงข้อมูล Excel เป็น JSON Data"
    },
    {
      "parameters": {
        "operation": "executeQuery",
        "query": "SELECT last_processed_index, status FROM migration_progress WHERE batch_id = '{{$('Set Configuration').first().json.config.BATCH_ID}}' LIMIT 1",
        "options": {}
      },
      "id": "a83f8598-72fd-4cc8-9d98-1ea3cb3b42df",
      "name": "Read Checkpoint",
      "type": "n8n-nodes-base.mySql",
      "typeVersion": 2.4,
      "position": [32096, 13504],
      "alwaysOutputData": true,
      "credentials": {
        "mySql": {
          "id": "CHHfbKhMacNo03V4",
          "name": "MySQL account"
        }
      },
      "onError": "continueErrorOutput",
      "notes": "อ่านตำแหน่งล่าสุดที่ประมวลผล"
    },
    {
      "parameters": {
        "jsCode": "const cpJson = $input.first()?.json || {};\nconst startIndex = cpJson.last_processed_index || 0;\nconst config = $('Set Configuration').first().json.config;\n\nconst allItems = $('Read Excel').all().map(i => i.json);\nconst remaining = allItems.slice(startIndex);\nconst currentBatch = remaining.slice(0, config.BATCH_SIZE);\n\n// Exit condition: ไม่มี records เหลือ\nif (currentBatch.length === 0) {\n  return [{ json: { batch_complete: true, total_processed: startIndex } }];\n}\n\nconst normalize = (str) => {\n  if (!str) return '';\n  return String(str).normalize('NFC').trim();\n};\n\nreturn currentBatch.map((item, i) => {\n  const getVal = (possibleKeys) => {\n    const exactMatch = possibleKeys.find(k => item[k] !== undefined);\n    if (exactMatch) return item[exactMatch];\n    const lowerTrimmedKeys = Object.keys(item).map(k => ({ original: k, parsed: k.toLowerCase().trim() }));\n    for (const pk of possibleKeys) {\n      const found = lowerTrimmedKeys.find(k => k.parsed === pk.toLowerCase().trim());\n      if (found) return item[found.original];\n    }\n    return '';\n  };\n\n  const docNum = getVal(['document_number', 'correspondence_number', 'Document Number', 'Corr. No.']);\n  const excelFileName = getVal(['File name', 'file_name', 'File Name', 'filename']);\n  \n  if (!excelFileName) {\n    throw new Error(`Missing 'File name' column for row ${i + startIndex + 1}, document: ${docNum}`);\n  }\n  \n  return {\n    json: {\n      batch_complete: false,\n      document_number: normalize(docNum),\n      title: normalize(getVal(['title', 'Title', 'Subject', 'subject'])),\n      legacy_number: normalize(getVal(['legacy_number', 'Legacy Number', 'Response Doc.'])),\n      excel_revision: getVal(['revision', 'Revision', 'rev']) || 1,\n      original_index: startIndex + i,\n      batch_id: config.BATCH_ID,\n      file_name: normalize(excelFileName),\n      issued_date: normalize(getVal(['issued_date', 'Issued_date', 'Issued Date', 'date', 'Date'])),\n      received_date: normalize(getVal(['received_date', 'Received_date', 'Received Date'])),\n      sender: normalize(getVal(['sender', 'Sender', 'From', 'from'])),\n      receiver: normalize(getVal(['receiver', 'Receiver', 'To', 'to'])),\n    }\n  };\n});"
      },
      "id": "80845e32-c283-4e9f-af73-6339d675fb38",
      "name": "Process Batch + Encoding",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [32272, 13504],
      "alwaysOutputData": true,
      "notes": "ตัด Batch + Normalize UTF-8 + Exit condition เมื่อ records หมด"
    },
    {
      "parameters": {
        "jsCode": "const fs = require('fs');\nconst path = require('path');\nconst config = $('Set Configuration').first().json.config;\n\nconst items = $input.all();\nif (!items || items.length === 0) return [];\n\n// ตรวจสอบ exit condition\nif (items[0]?.json?.batch_complete === true) {\n  return items;\n}\n\nconst validated = [];\nconst errors = [];\n\nfor (const item of items) {\n  const fileName = item.json?.file_name;\n  if (!fileName) {\n    errors.push({ ...item, json: { ...item.json, file_valid: false, error: 'file_name is missing', error_type: 'MISSING_FILENAME' } });\n    continue;\n  }\n  \n  let safeName = path.basename(String(fileName)).normalize('NFC');\n  if (!safeName.toLowerCase().endsWith('.pdf')) safeName += '.pdf';\n  const filePath = path.resolve(config.SOURCE_PDF_DIR, safeName);\n  \n  if (!filePath.startsWith(path.resolve(config.SOURCE_PDF_DIR))) {\n    errors.push({ ...item, json: { ...item.json, file_valid: false, error: 'Path traversal detected', error_type: 'SECURITY' } });\n    continue;\n  }\n  \n  try {\n    if (fs.existsSync(filePath)) {\n      const stats = fs.statSync(filePath);\n      validated.push({ ...item, json: { ...item.json, file_valid: true, file_path: filePath, file_size: stats.size } });\n    } else {\n      errors.push({ ...item, json: { ...item.json, file_valid: false, error: `File not found: ${safeName}`, error_type: 'FILE_NOT_FOUND' } });\n    }\n  } catch (err) {\n    errors.push({ ...item, json: { ...item.json, file_valid: false, error: err.message, error_type: 'FILE_ERROR' } });\n  }\n}\n\nreturn [...validated, ...errors];"
      },
      "id": "2183d687-4708-4d77-a0a9-13ccf29baf69",
      "name": "File Validator",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [32448, 13504],
      "notes": "ตรวจสอบไฟล์ PDF ใน Directory"
    },
    {
      "parameters": {
        "fileSelector": "={{ $json.file_path }}",
        "options": {}
      },
      "id": "4fd3133e-39e1-4860-95c7-3e87ee43ed51",
      "name": "Read PDF File",
      "type": "n8n-nodes-base.readWriteFile",
      "typeVersion": 1,
      "position": [32624, 13504],
      "onError": "continueErrorOutput",
      "notes": "อ่าน PDF Binary เพื่อเตรียม Upload"
    },
    {
      "parameters": {
        "method": "POST",
        "url": "={{$('Set Configuration').first().json.config.BACKEND_URL}}/api/storage/upload",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "Authorization",
              "value": "={{$('Set Configuration').first().json.config.MIGRATION_TOKEN}}"
            }
          ]
        },
        "sendBody": true,
        "contentType": "multipart-form-data",
        "bodyParameters": {
          "parameters": [
            {
              "parameterType": "formBinaryData",
              "name": "file",
              "inputDataFieldName": "data"
            }
          ]
        },
        "options": {
          "timeout": 60000
        }
      },
      "id": "b1c2d3e4-f5a6-7890-bcde-f12345678901",
      "name": "Upload PDF to Backend",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [32800, 13504],
      "onError": "continueErrorOutput",
      "notes": "ADR-023A: อัพโหลด PDF เข้า Backend Temp Storage → รับ temp_attachment_id"
    },
    {
      "parameters": {
        "jsCode": "const config = $('Set Configuration').first().json.config;\nconst uploadResponse = $input.first()?.json || {};\nconst metaItem = $('File Validator').all()[$input.context?.itemIndex ?? 0]?.json || {};\nconst mountCheckData = $('File Mount Check').first()?.json || {};\n\nconst tempAttachmentId = uploadResponse?.data?.id || uploadResponse?.id;\nif (!tempAttachmentId) {\n  throw new Error(`Upload failed — no temp_attachment_id returned for document: ${metaItem.document_number}`);\n}\n\n// สร้าง SubmitAiJobDto ตาม Backend DTO\nconst submitPayload = {\n  type: 'migrate-document',\n  payload: {\n    tempAttachmentId: String(tempAttachmentId),\n    documentNumber: String(metaItem.document_number || ''),\n    title: String(metaItem.title || ''),\n    batchId: String(config.BATCH_ID),\n    existingTags: mountCheckData.existing_tags || [],\n    systemCategories: mountCheckData.system_categories || [],\n  }\n};\n\n// Idempotency-Key: deterministic format ตาม FR-001a\nconst idempotencyKey = `${config.BATCH_ID}:${metaItem.document_number}`;\n\nreturn [{\n  json: {\n    ...metaItem,\n    temp_attachment_id: tempAttachmentId,\n    submit_payload: submitPayload,\n    idempotency_key: idempotencyKey,\n  }\n}];"
      },
      "id": "c2d3e4f5-a6b7-8901-cdef-234567890123",
      "name": "Build AI Job Payload",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [32976, 13504],
      "notes": "สร้าง SubmitAiJobDto payload + Idempotency-Key ตาม FR-001a"
    },
    {
      "parameters": {
        "method": "POST",
        "url": "={{$('Set Configuration').first().json.config.BACKEND_URL}}/api/ai/jobs",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "Authorization",
              "value": "={{$('Set Configuration').first().json.config.MIGRATION_TOKEN}}"
            },
            {
              "name": "Idempotency-Key",
              "value": "={{ $json.idempotency_key }}"
            }
          ]
        },
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={{ $json.submit_payload }}",
        "options": {
          "timeout": 30000
        }
      },
      "id": "d3e4f5a6-b7c8-9012-defa-345678901234",
      "name": "Submit AI Job",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.1,
      "position": [33152, 13504],
      "onError": "continueErrorOutput",
      "notes": "ADR-023A: POST /api/ai/jobs — Backend จัดการ Ollama ผ่าน BullMQ"
    },
    {
      "parameters": {
        "jsCode": "// Poll GET /api/ai/jobs/{jobId} ทุก 5 วินาที จน status = completed หรือ timeout 120 วินาที\nconst config = $('Set Configuration').first().json.config;\nconst submitResponse = $input.first()?.json || {};\nconst originalMeta = $('Build AI Job Payload').all()[$input.context?.itemIndex ?? 0]?.json || {};\n\nconst jobId = submitResponse?.jobId || submitResponse?.data?.jobId;\nif (!jobId) {\n  // FR-010b: ถ้า 401 → mark TOKEN_EXPIRED\n  if (submitResponse?.statusCode === 401 || submitResponse?.error?.status === 401) {\n    throw new Error('TOKEN_EXPIRED: 401 Unauthorized — กรุณา renew MIGRATION_TOKEN แล้ว resume');\n  }\n  throw new Error(`Submit AI Job failed — no jobId returned for: ${originalMeta.document_number}`);\n}\n\nconst pollIntervalMs = config.AI_JOB_POLL_INTERVAL_MS || 5000;\nconst timeoutMs = config.AI_JOB_TIMEOUT_MS || 120000;\nconst startTime = Date.now();\n\nwhile (true) {\n  if (Date.now() - startTime > timeoutMs) {\n    throw new Error(`AI Job timeout after ${timeoutMs}ms for jobId: ${jobId}, document: ${originalMeta.document_number}`);\n  }\n  \n  const statusResponse = await $helpers.httpRequest({\n    method: 'GET',\n    url: `${config.BACKEND_URL}/api/ai/jobs/${jobId}`,\n    headers: { 'Authorization': config.MIGRATION_TOKEN },\n    json: true\n  });\n  \n  const status = statusResponse?.status || statusResponse?.data?.status;\n  \n  if (status === 'completed') {\n    return [{\n      json: {\n        ...originalMeta,\n        job_id: jobId,\n        ai_result: statusResponse?.result || statusResponse?.data?.result || {},\n        ai_status: 'completed',\n      }\n    }];\n  }\n  \n  if (status === 'failed') {\n    return [{\n      json: {\n        ...originalMeta,\n        job_id: jobId,\n        ai_status: 'failed',\n        parse_error: `AI Job failed: ${JSON.stringify(statusResponse?.error || statusResponse?.data?.error || 'unknown')}`,\n        error_type: 'AI_JOB_FAILED',\n        route_index: 3\n      }\n    }];\n  }\n  \n  // status = 'processing' — รอแล้ว poll ใหม่\n  await new Promise(resolve => setTimeout(resolve, pollIntervalMs));\n}"
      },
      "id": "e4f5a6b7-c8d9-0123-efab-456789012345",
      "name": "Poll AI Job Status",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [33328, 13504],
      "notes": "Poll GET /api/ai/jobs/{jobId} ทุก 5 วินาที (timeout 120 วินาที)"
    },
    {
      "parameters": {
        "jsCode": "const config = $('Set Configuration').first().json.config;\nconst items = $input.all();\nconst results = [];\n\nconst CATEGORY_TO_TYPE_CODE = {\n  'Correspondence': 'LETTER',\n  'RFA': 'RFA',\n  'Transmittal': 'TRANSMITTAL',\n  'Drawing': 'OTHER',\n  'Report': 'OTHER',\n  'Other': 'OTHER',\n};\n\nfor (const item of items) {\n  const data = item.json;\n  \n  // ถ้า poll ส่ง error กลับมาโดยตรง (route_index = 3)\n  if (data.route_index === 3 || data.ai_status === 'failed') {\n    results.push({ json: { ...data, route_index: 3 } });\n    continue;\n  }\n  \n  const ai = data.ai_result || {};\n  \n  if (!ai || typeof ai !== 'object') {\n    results.push({ json: { ...data, parse_error: 'Empty or invalid ai_result', error_type: 'PARSE_ERROR', route_index: 3 } });\n    continue;\n  }\n  \n  // Enum Validation for Category\n  const systemCategories = ['Correspondence','RFA','Drawing','Transmittal','Report','Other'];\n  let finalCategory = ai.suggested_category || ai.category || 'Correspondence';\n  if (!systemCategories.includes(finalCategory)) {\n    finalCategory = String(data.document_number || '').includes('-RFA-') ? 'RFA' : 'Correspondence';\n  }\n  const typeCode = CATEGORY_TO_TYPE_CODE[finalCategory] || 'LETTER';\n  \n  // Tag normalization — is_new flag\n  const suggestedTags = Array.isArray(ai.suggested_tags)\n    ? ai.suggested_tags.map(t => ({\n        tagName: String(t.tagName || t.tag_name || ''),\n        publicId: t.publicId || t.public_id || undefined,\n        isNew: Boolean(t.isNew ?? t.is_new ?? !t.publicId),\n        colorCode: t.colorCode || t.color_code || 'default',\n      })).filter(t => t.tagName)\n    : [];\n  \n  const confidence = Number(ai.confidence || 0);\n  \n  const normalizedAi = {\n    ...ai,\n    suggested_category: finalCategory,\n    type_code: typeCode,\n    confidence,\n    suggested_tags: suggestedTags,\n  };\n  \n  let route_index;\n  let review_reason = '';\n  let reject_reason = '';\n  \n  if (confidence >= config.CONFIDENCE_HIGH && ai.is_valid !== false) {\n    route_index = 0; // Auto Ready\n  } else if (confidence >= config.CONFIDENCE_LOW) {\n    route_index = 1; // Flagged\n    review_reason = `Confidence ${confidence.toFixed(2)} < ${config.CONFIDENCE_HIGH}`;\n  } else {\n    route_index = 2; // Rejected\n    reject_reason = ai.is_valid === false ? 'AI marked invalid' : `Confidence ${confidence.toFixed(2)} < ${config.CONFIDENCE_LOW}`;\n  }\n  \n  results.push({\n    json: {\n      ...data,\n      ai_result: normalizedAi,\n      route_index,\n      review_reason,\n      reject_reason,\n    }\n  });\n}\n\nreturn results;"
      },
      "id": "6716162f-1129-4552-a05f-a08ac115fe10",
      "name": "Parse & Validate AI Response",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [33504, 13504],
      "notes": "Parse AI result + Confidence routing prep + Tag normalization (isNew flag)"
    },
    {
      "parameters": {
        "rules": {
          "values": [
            {
              "conditions": {
                "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "strict", "version": 2 },
                "conditions": [{ "leftValue": "={{ $json.route_index }}", "rightValue": 0, "operator": { "type": "number", "operation": "equals", "singleValue": true } }],
                "combinator": "and"
              },
              "renameOutput": true,
              "outputKey": "Auto Ready"
            },
            {
              "conditions": {
                "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "strict", "version": 2 },
                "conditions": [{ "leftValue": "={{ $json.route_index }}", "rightValue": 1, "operator": { "type": "number", "operation": "equals", "singleValue": true } }],
                "combinator": "and"
              },
              "renameOutput": true,
              "outputKey": "Review Flagged"
            },
            {
              "conditions": {
                "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "strict", "version": 2 },
                "conditions": [{ "leftValue": "={{ $json.route_index }}", "rightValue": 2, "operator": { "type": "number", "operation": "equals", "singleValue": true } }],
                "combinator": "and"
              },
              "renameOutput": true,
              "outputKey": "Rejected"
            },
            {
              "conditions": {
                "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "strict", "version": 2 },
                "conditions": [{ "leftValue": "={{ $json.route_index }}", "rightValue": 3, "operator": { "type": "number", "operation": "equals", "singleValue": true } }],
                "combinator": "and"
              },
              "renameOutput": true,
              "outputKey": "Error Log"
            }
          ]
        },
        "options": {}
      },
      "id": "65f0bb6c-496a-4409-8b88-3132866cf9a4",
      "name": "Route by Confidence",
      "type": "n8n-nodes-base.switch",
      "typeVersion": 3.2,
      "position": [33680, 13504]
    },
    {
      "parameters": {
        "operation": "executeQuery",
        "query": "INSERT INTO migration_review_queue (document_number, title, original_title, ai_suggested_category, ai_confidence, ai_issues, review_reason, status, created_at) VALUES ('{{$json.document_number}}', '{{$json.ai_result.subject || $json.title}}', '{{$json.title}}', '{{$json.ai_result.suggested_category}}', {{$json.ai_result.confidence}}, '{{JSON.stringify({ job_id: $json.job_id, temp_attachment_id: $json.temp_attachment_id, type_code: $json.ai_result.type_code, subject: $json.ai_result.subject, suggested_tags: $json.ai_result.suggested_tags, key_points: $json.ai_result.key_points || [], issued_date: $json.ai_result.issued_date, received_date: $json.ai_result.received_date })}}', '{{$json.review_reason || \"\"}}', 'PENDING', NOW()) ON DUPLICATE KEY UPDATE status = 'PENDING', review_reason = '{{$json.review_reason || \"\"}}', ai_issues = VALUES(ai_issues), created_at = NOW()",
        "options": {}
      },
      "id": "c1bd4485-e58f-4270-892e-edda34c2e328",
      "name": "Insert Review Queue (Auto)",
      "type": "n8n-nodes-base.mySql",
      "typeVersion": 2.4,
      "position": [33856, 13312],
      "credentials": {
        "mySql": {
          "id": "CHHfbKhMacNo03V4",
          "name": "MySQL account"
        }
      },
      "notes": "Auto Ready (confidence ≥ 0.85) → migration_review_queue PENDING"
    },
    {
      "parameters": {
        "operation": "executeQuery",
        "query": "INSERT INTO migration_review_queue (document_number, title, original_title, ai_suggested_category, ai_confidence, ai_issues, review_reason, status, created_at) VALUES ('{{$json.document_number}}', '{{$json.ai_result.subject || $json.title}}', '{{$json.title}}', '{{$json.ai_result.suggested_category}}', {{$json.ai_result.confidence}}, '{{JSON.stringify({ job_id: $json.job_id, temp_attachment_id: $json.temp_attachment_id, type_code: $json.ai_result.type_code, subject: $json.ai_result.subject, suggested_tags: $json.ai_result.suggested_tags, key_points: $json.ai_result.key_points || [], issued_date: $json.ai_result.issued_date, received_date: $json.ai_result.received_date })}}', '{{$json.review_reason}}', 'PENDING_REVIEW', NOW()) ON DUPLICATE KEY UPDATE status = 'PENDING_REVIEW', review_reason = '{{$json.review_reason}}', ai_issues = VALUES(ai_issues), created_at = NOW()",
        "options": {}
      },
      "id": "f1a2b3c4-d5e6-7890-abcd-567890123456",
      "name": "Insert Review Queue (Flagged)",
      "type": "n8n-nodes-base.mySql",
      "typeVersion": 2.4,
      "position": [33856, 13504],
      "credentials": {
        "mySql": {
          "id": "CHHfbKhMacNo03V4",
          "name": "MySQL account"
        }
      },
      "notes": "Flagged (confidence 0.60–0.84) → migration_review_queue PENDING_REVIEW"
    },
    {
      "parameters": {
        "jsCode": "const fs = require('fs');\nconst item = $input.first();\nconst config = $('Set Configuration').first().json.config;\n\nconst csvPath = `${config.LOG_PATH}/reject_log.csv`;\nconst header = 'timestamp,document_number,title,reject_reason,ai_confidence,job_id\\n';\nconst esc = (s) => `\"${String(s || '').replace(/\"/g, '\"\"')}\"`;\n\nif (!fs.existsSync(csvPath)) {\n  fs.writeFileSync(csvPath, header, 'utf8');\n}\n\nconst line = [\n  new Date().toISOString(),\n  esc(item.json.document_number),\n  esc(item.json.title),\n  esc(item.json.reject_reason),\n  item.json.ai_result?.confidence ?? 'N/A',\n  esc(item.json.job_id || '')\n].join(',') + '\\n';\n\nfs.appendFileSync(csvPath, line, 'utf8');\n\nreturn [$input.first()];"
      },
      "id": "0bb3530f-02d5-44d0-ad94-c94d97d91b6a",
      "name": "Log Reject to CSV",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [33856, 13696],
      "notes": "บันทึกรายการที่ถูกปฏิเสธลง CSV"
    },
    {
      "parameters": {
        "jsCode": "const fs = require('fs');\nconst items = $input.all();\nconst config = $('Set Configuration').first().json.config;\n\nconst csvPath = `${config.LOG_PATH}/error_log.csv`;\nconst header = 'timestamp,document_number,error_type,error_message,job_id\\n';\nconst esc = (s) => `\"${String(s || '').replace(/\"/g, '\"\"')}\"`;\n\nif (!fs.existsSync(csvPath)) {\n  fs.writeFileSync(csvPath, header, 'utf8');\n}\n\nfor (const item of items) {\n  const line = [\n    new Date().toISOString(),\n    esc(item.json.document_number),\n    esc(item.json.error_type || 'UNKNOWN'),\n    esc(item.json.error || item.json.parse_error),\n    esc(item.json.job_id || '')\n  ].join(',') + '\\n';\n  fs.appendFileSync(csvPath, line, 'utf8');\n}\n\nreturn items;"
      },
      "id": "8250dd88-ca81-45aa-93d8-480c9bcd6b14",
      "name": "Log Error to CSV",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [33856, 13888],
      "notes": "บันทึก Error ลง CSV"
    },
    {
      "parameters": {
        "operation": "executeQuery",
        "query": "INSERT INTO migration_errors (batch_id, document_number, error_type, error_message, created_at) VALUES ('{{$('Set Configuration').first().json.config.BATCH_ID}}', '{{$json.document_number}}', '{{$json.error_type || \"UNKNOWN\"}}', '{{$json.error || $json.parse_error}}', NOW())",
        "options": {}
      },
      "id": "0f058ad0-3c09-4c9f-bdcf-503cd58ee395",
      "name": "Log Error to DB",
      "type": "n8n-nodes-base.mySql",
      "typeVersion": 2.4,
      "position": [34032, 13888],
      "credentials": {
        "mySql": {
          "id": "CHHfbKhMacNo03V4",
          "name": "MySQL account"
        }
      },
      "notes": "บันทึก Error ลง MariaDB"
    },
    {
      "parameters": {
        "operation": "executeQuery",
        "query": "INSERT INTO migration_progress (batch_id, last_processed_index, status) VALUES ('{{$('Set Configuration').first().json.config.BATCH_ID}}', {{$json.original_index || 0}}, 'RUNNING') ON DUPLICATE KEY UPDATE last_processed_index = {{$json.original_index || 0}}, updated_at = NOW()",
        "options": {}
      },
      "id": "bb0e611b-db28-4266-ba40-3b5d534a16f7",
      "name": "Save Checkpoint",
      "type": "n8n-nodes-base.mySql",
      "typeVersion": 2.4,
      "position": [34032, 13312],
      "credentials": {
        "mySql": {
          "id": "CHHfbKhMacNo03V4",
          "name": "MySQL account"
        }
      },
      "notes": "บันทึก Checkpoint ทุก record ที่ผ่าน Review Queue"
    },
    {
      "parameters": {
        "amount": "={{$('Set Configuration').first().json.config.DELAY_MS / 1000}}",
        "unit": "seconds"
      },
      "id": "07c1c5d5-5ffc-4e3d-ab3e-4b62ad079388",
      "name": "Delay",
      "type": "n8n-nodes-base.wait",
      "typeVersion": 1,
      "position": [34208, 13504],
      "webhookId": "38e97a99-4dcc-4b63-977a-a02945a1c369",
      "notes": "หน่วงเวลาระหว่าง Records"
    }
  ],
  "pinData": {},
  "connections": {
    "Form Trigger": {
      "main": [[{ "node": "Set Configuration", "type": "main", "index": 0 }]]
    },
    "Set Configuration": {
      "main": [[{ "node": "Check Backend Health", "type": "main", "index": 0 }]]
    },
    "Check Backend Health": {
      "main": [[{ "node": "Validate Token", "type": "main", "index": 0 }]]
    },
    "Validate Token": {
      "main": [[{ "node": "Fetch Categories", "type": "main", "index": 0 }]]
    },
    "Fetch Categories": {
      "main": [[{ "node": "Fetch Tags", "type": "main", "index": 0 }]]
    },
    "Fetch Tags": {
      "main": [[{ "node": "File Mount Check", "type": "main", "index": 0 }]]
    },
    "File Mount Check": {
      "main": [[{ "node": "Read Excel Binary", "type": "main", "index": 0 }]]
    },
    "Read Excel Binary": {
      "main": [[{ "node": "Read Excel", "type": "main", "index": 0 }]]
    },
    "Read Excel": {
      "main": [[{ "node": "Read Checkpoint", "type": "main", "index": 0 }]]
    },
    "Read Checkpoint": {
      "main": [[{ "node": "Process Batch + Encoding", "type": "main", "index": 0 }]]
    },
    "Process Batch + Encoding": {
      "main": [[{ "node": "File Validator", "type": "main", "index": 0 }]]
    },
    "File Validator": {
      "main": [[{ "node": "Read PDF File", "type": "main", "index": 0 }]]
    },
    "Read PDF File": {
      "main": [[{ "node": "Upload PDF to Backend", "type": "main", "index": 0 }]]
    },
    "Upload PDF to Backend": {
      "main": [[{ "node": "Build AI Job Payload", "type": "main", "index": 0 }]]
    },
    "Build AI Job Payload": {
      "main": [[{ "node": "Submit AI Job", "type": "main", "index": 0 }]]
    },
    "Submit AI Job": {
      "main": [[{ "node": "Poll AI Job Status", "type": "main", "index": 0 }]]
    },
    "Poll AI Job Status": {
      "main": [[{ "node": "Parse & Validate AI Response", "type": "main", "index": 0 }]]
    },
    "Parse & Validate AI Response": {
      "main": [[{ "node": "Route by Confidence", "type": "main", "index": 0 }]]
    },
    "Route by Confidence": {
      "main": [
        [{ "node": "Insert Review Queue (Auto)", "type": "main", "index": 0 }],
        [{ "node": "Insert Review Queue (Flagged)", "type": "main", "index": 0 }],
        [{ "node": "Log Reject to CSV", "type": "main", "index": 0 }],
        [{ "node": "Log Error to CSV", "type": "main", "index": 0 }]
      ]
    },
    "Insert Review Queue (Auto)": {
      "main": [[{ "node": "Save Checkpoint", "type": "main", "index": 0 }]]
    },
    "Insert Review Queue (Flagged)": {
      "main": [[{ "node": "Save Checkpoint", "type": "main", "index": 0 }]]
    },
    "Save Checkpoint": {
      "main": [[{ "node": "Delay", "type": "main", "index": 0 }]]
    },
    "Log Reject to CSV": {
      "main": [[{ "node": "Delay", "type": "main", "index": 0 }]]
    },
    "Log Error to CSV": {
      "main": [[{ "node": "Log Error to DB", "type": "main", "index": 0 }]]
    },
    "Log Error to DB": {
      "main": [[{ "node": "Delay", "type": "main", "index": 0 }]]
    },
    "Delay": {
      "main": [[{ "node": "Read Checkpoint", "type": "main", "index": 0 }]]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1",
    "availableInMCP": false
  },
  "versionId": "v2.0.0-adr023a-compliant",
  "meta": {
    "templateCredsSetupCompleted": true,
    "instanceId": "9e70e47c1eaf3bac72f497ddfbde0983f840f7d0f059537f7e37dd70de18ecb7"
  },
  "id": "u7CLP05AyFb8Um0P",
  "tags": [
    { "name": "migration", "createdAt": "2026-05-23" },
    { "name": "v2", "createdAt": "2026-05-23" }
  ]
}