{
  "name": "74 IT helpdesk + prompt fallback (answer)",
  "nodes": [
    {
      "name": "Question webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2,
      "parameters": {
        "httpMethod": "POST",
        "path": "my-helpdesk",
        "responseMode": "responseNode",
        "options": {}
      },
      "webhookId": "de518e93-ed19-541f-a6fc-687a4efaf1b2",
      "position": [
        0,
        300
      ],
      "id": "956f6ead-f979-5d78-bedf-13743406c6b5"
    },
    {
      "name": "Has question?",
      "type": "n8n-nodes-base.if",
      "typeVersion": 2.2,
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "loose",
            "version": 2
          },
          "conditions": [
            {
              "id": "c1",
              "leftValue": "={{ $json.body.question }}",
              "rightValue": "",
              "operator": {
                "type": "string",
                "operation": "notEmpty",
                "singleValue": true
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      },
      "position": [
        220,
        300
      ],
      "id": "b946f570-248c-5436-a6d6-06ab2b15db29"
    },
    {
      "name": "Reject empty",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1.1,
      "parameters": {
        "respondWith": "json",
        "responseBody": "{ \"error\": \"question is required\" }",
        "options": {
          "responseCode": 400
        }
      },
      "position": [
        440,
        560
      ],
      "id": "e9818b28-ea3d-517c-ab00-02f86427c3c5"
    },
    {
      "name": "Release info",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "r1",
              "name": "release",
              "value": "1.0.0",
              "type": "string"
            },
            {
              "id": "r2",
              "name": "prompt_version",
              "value": "p1",
              "type": "string"
            },
            {
              "id": "r3",
              "name": "model",
              "value": "gpt-4.1-mini",
              "type": "string"
            }
          ]
        },
        "options": {}
      },
      "position": [
        440,
        300
      ],
      "id": "0ffcc09f-8eff-56b4-801e-9c8e2a40930c"
    },
    {
      "name": "Get prompt",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "parameters": {
        "url": "=http://data-api:8800/prompts/helpdesk/{{ $('Release info').first().json.prompt_version }}",
        "options": {
          "timeout": 2000
        }
      },
      "position": [
        660,
        300
      ],
      "id": "578695ac-1a56-57c4-863b-08677838f02c",
      "onError": "continueErrorOutput"
    },
    {
      "name": "Search FAQ",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "parameters": {
        "url": "http://data-api:8800/faq",
        "options": {},
        "sendQuery": true,
        "queryParameters": {
          "parameters": [
            {
              "name": "q",
              "value": "={{ $('Question webhook').first().json.body.question }}"
            }
          ]
        }
      },
      "position": [
        1100,
        300
      ],
      "id": "322d506e-a6a2-52bc-b153-170da84009c2"
    },
    {
      "name": "Get ticket",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "parameters": {
        "url": "=http://data-api:8800/tickets/{{ (($('Question webhook').first().json.body.question.match(/T-?\\d{4}/i) || ['NONE'])[0]).toUpperCase().replace(/^T(\\d)/, 'T-$1') }}",
        "options": {
          "response": {
            "response": {
              "neverError": true
            }
          }
        },
        "sendQuery": true,
        "queryParameters": {
          "parameters": [
            {
              "name": "requester",
              "value": "={{ $('Question webhook').first().json.body.user ?? '' }}"
            }
          ]
        }
      },
      "position": [
        1320,
        300
      ],
      "id": "3caf9b96-2920-54de-a905-3eabacb6f6e9"
    },
    {
      "name": "Answer",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "typeVersion": 3.1,
      "parameters": {
        "promptType": "define",
        "text": "=질문: {{ $('Question webhook').first().json.body.question }}\nFAQ: {{ JSON.stringify($('Search FAQ').first().json.results ?? []) }}\n접수 건: {{ JSON.stringify($('Get ticket').first().json) }}",
        "options": {
          "systemMessage": "={{ $('Registry prompt').isExecuted ? $('Registry prompt').first().json.text : $('Fallback prompt').first().json.text }}",
          "maxIterations": 1
        }
      },
      "position": [
        1540,
        300
      ],
      "id": "500a6055-13cd-5000-9255-4f854efc5bb5"
    },
    {
      "name": "Answer model",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "typeVersion": 1.2,
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "id",
          "value": "={{ $('Release info').first().json.model }}"
        },
        "options": {
          "temperature": 0
        }
      },
      "credentials": {
        "openAiApi": {
          "id": "openAiCourse0001",
          "name": "OpenAI (.env)"
        }
      },
      "position": [
        1540,
        520
      ],
      "id": "efcecd80-eb64-54b9-ba80-23ce47e0d416"
    },
    {
      "name": "Build result",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "parameters": {
        "jsCode": "const results = $('Search FAQ').first().json.results ?? [];\nconst result = { route: '자동 답변', answer: String($json.output ?? '').trim(), sources: results.map((r) => r.id) };\nconst i = $('Release info').first().json;\nresult.version = { release: i.release, prompt_version: i.prompt_version, model: i.model, prompt_source: ($('Registry prompt').isExecuted ? 'registry' : 'fallback') };\nreturn [{ json: result }];"
      },
      "position": [
        1760,
        300
      ],
      "id": "999ca8b6-3571-5e6d-8c0d-d681a8cf40ee"
    },
    {
      "name": "Send result",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1.1,
      "parameters": {
        "respondWith": "json",
        "responseBody": "={{ $json }}",
        "options": {}
      },
      "position": [
        1980,
        300
      ],
      "id": "f9bbb5e8-0e9c-5c3b-9a23-204b66884821"
    },
    {
      "name": "Registry prompt",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        880,
        300
      ],
      "id": "8161625d-2c7f-5acc-9377-3545a0ced05c",
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "f0",
              "name": "text",
              "value": "={{ $json.text }}",
              "type": "string"
            }
          ]
        },
        "options": {}
      }
    },
    {
      "name": "Fallback prompt",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        880,
        540
      ],
      "id": "d9000207-de8d-561e-865c-216430daeaa5",
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "f0",
              "name": "text",
              "value": "You are the company IT help desk. Answer in Korean in at most 3 sentences, using only the FAQ entries and the ticket record given. Never invent steps, dates or names. For a ticket, say its status and note. If the data does not answer the question, say \"찾지 못했습니다\" and that a staff member will help. Use 합니다체.",
              "type": "string"
            }
          ]
        },
        "options": {}
      }
    }
  ],
  "connections": {
    "Question webhook": {
      "main": [
        [
          {
            "node": "Has question?",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Has question?": {
      "main": [
        [
          {
            "node": "Release info",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Reject empty",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Release info": {
      "main": [
        [
          {
            "node": "Get prompt",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Get prompt": {
      "main": [
        [
          {
            "node": "Registry prompt",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Fallback prompt",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Search FAQ": {
      "main": [
        [
          {
            "node": "Get ticket",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Get ticket": {
      "main": [
        [
          {
            "node": "Answer",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Answer model": {
      "ai_languageModel": [
        [
          {
            "node": "Answer",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Answer": {
      "main": [
        [
          {
            "node": "Build result",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Build result": {
      "main": [
        [
          {
            "node": "Send result",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Registry prompt": {
      "main": [
        [
          {
            "node": "Search FAQ",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Fallback prompt": {
      "main": [
        [
          {
            "node": "Search FAQ",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  }
}