{
  "id": "TApiWf58Glossary01",
  "name": "Course Glossary Builder (TranscriptAPI)",
  "nodes": [
    {
      "parameters": {},
      "id": "58585858-5858-4858-8858-585858585801",
      "name": "Start",
      "type": "n8n-nodes-base.manualTrigger",
      "typeVersion": 1,
      "position": [
        -460,
        0
      ]
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "58585858-5858-4858-8858-5858585858a1",
              "name": "playlistUrl",
              "value": "REPLACE_WITH_PLAYLIST_URL_OR_ID",
              "type": "string"
            }
          ]
        },
        "options": {}
      },
      "id": "58585858-5858-4858-8858-585858585802",
      "name": "Set Playlist",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        -240,
        0
      ]
    },
    {
      "parameters": {
        "url": "https://transcriptapi.com/api/v2/youtube/playlist/videos",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "sendQuery": true,
        "queryParameters": {
          "parameters": [
            {
              "name": "playlist",
              "value": "={{ $json.playlistUrl }}"
            }
          ]
        },
        "options": {}
      },
      "id": "58585858-5858-4858-8858-585858585803",
      "name": "Get Playlist Videos",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        -20,
        0
      ],
      "credentials": {
        "httpHeaderAuth": {
          "id": "REPLACE_TRANSCRIPTAPI_CRED_ID",
          "name": "TranscriptAPI - Authorization Bearer"
        }
      }
    },
    {
      "parameters": {
        "jsCode": "const data = $input.first().json;\nreturn (data.results || []).map((v) => ({ json: { videoId: v.videoId, videoTitle: v.title || null, videoUrl: 'https://www.youtube.com/watch?v=' + v.videoId } }));"
      },
      "id": "58585858-5858-4858-8858-585858585804",
      "name": "Extract Video List",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        200,
        0
      ]
    },
    {
      "parameters": {
        "maxItems": 5
      },
      "id": "58585858-5858-4858-8858-585858585805",
      "name": "Keep First 5",
      "type": "n8n-nodes-base.limit",
      "typeVersion": 1,
      "position": [
        420,
        0
      ]
    },
    {
      "parameters": {
        "url": "https://transcriptapi.com/api/v2/youtube/transcript",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "sendQuery": true,
        "queryParameters": {
          "parameters": [
            {
              "name": "video_url",
              "value": "={{ $json.videoUrl }}"
            },
            {
              "name": "format",
              "value": "json"
            },
            {
              "name": "send_metadata",
              "value": "true"
            }
          ]
        },
        "options": {}
      },
      "id": "58585858-5858-4858-8858-585858585806",
      "name": "Get Transcript (TranscriptAPI)",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        640,
        0
      ],
      "credentials": {
        "httpHeaderAuth": {
          "id": "REPLACE_TRANSCRIPTAPI_CRED_ID",
          "name": "TranscriptAPI - Authorization Bearer"
        }
      },
      "onError": "continueRegularOutput"
    },
    {
      "parameters": {
        "mode": "runOnceForEachItem",
        "jsCode": "function ts(sec) {\n  const s = Math.floor(sec || 0);\n  const h = Math.floor(s / 3600), m = Math.floor((s % 3600) / 60), r = s % 60;\n  const mm = (r < 10 ? '0' : '') + r;\n  return h > 0 ? (h + ':' + (m < 10 ? '0' : '') + m + ':' + mm) : (m + ':' + mm);\n}\nconst d = $json; const seg = Array.isArray(d.transcript) ? d.transcript : []; const meta = d.metadata || {}; const vid = d.video_id;\nconst transcriptText = seg.map((s) => '[' + ts(s.start) + '] ' + s.text).join('\\n');\nreturn { json: { title: meta.title || vid, videoUrl: 'https://www.youtube.com/watch?v=' + vid, transcriptText, hasTranscript: transcriptText.length > 0 } };"
      },
      "id": "58585858-5858-4858-8858-585858585807",
      "name": "Build Glossary Input",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        860,
        0
      ]
    },
    {
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict"
          },
          "conditions": [
            {
              "id": "c5858585-5858-4858-8858-585858585ccc",
              "leftValue": "={{ $json.hasTranscript }}",
              "rightValue": true,
              "operator": {
                "type": "boolean",
                "operation": "true",
                "singleValue": true
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      },
      "id": "58585858-5858-4858-8858-585858585808",
      "name": "Has Transcript?",
      "type": "n8n-nodes-base.filter",
      "typeVersion": 2,
      "position": [
        1080,
        0
      ]
    },
    {
      "parameters": {
        "method": "POST",
        "url": "https://api.openai.com/v1/chat/completions",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={{ JSON.stringify({ model: 'gpt-4o-mini', response_format: { type: 'json_object' }, messages: [ { role: 'system', content: 'You are building a course glossary from a timestamped lecture transcript. Respond with a JSON object with key terms: an array of objects with term, definition (plain-English, 1-2 sentences), timestamp (the [m:ss] or [h:mm:ss] marker where the term is introduced, or null), study_note (an optional tip, or null). Provide 5-15 terms. Define ONLY terms actually explained in the video.' }, { role: 'user', content: 'Lecture: ' + ($json.title || '') + '\\n\\nTimestamped transcript:\\n' + $json.transcriptText } ] }) }}",
        "options": {}
      },
      "id": "58585858-5858-4858-8858-585858585809",
      "name": "Extract Terms (LLM)",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        1300,
        0
      ],
      "credentials": {
        "httpHeaderAuth": {
          "id": "REPLACE_OPENAI_CRED_ID",
          "name": "OpenAI - Authorization Bearer"
        }
      }
    },
    {
      "parameters": {
        "mode": "runOnceForEachItem",
        "jsCode": "function toSec(t) {\n  if (!t) return null;\n  const clean = String(t).split('[').join('').split(']').join('').trim();\n  const parts = clean.split(':').map(Number);\n  if (parts.some(isNaN)) return null;\n  let s = 0; for (const x of parts) s = s * 60 + x; return s;\n}\nconst raw = ($json.choices && $json.choices[0] && $json.choices[0].message.content) || '';\nlet r; try { r = JSON.parse(raw); } catch (e) { r = { terms: [] }; }\nconst src = $('Build Glossary Input').item.json;\nconst terms = r.terms || [];\nif (!terms.length) return [];\nreturn terms.map((t) => {\n  const sec = toSec(t.timestamp);\n  return { json: {\n    term: t.term,\n    definition: t.definition,\n    studyNote: t.study_note || null,\n    timestamp: t.timestamp || null,\n    deepLink: sec != null ? (src.videoUrl + '&t=' + sec + 's') : src.videoUrl,\n    sourceTitle: src.title,\n    videoUrl: src.videoUrl,\n  } };\n});"
      },
      "id": "58585858-5858-4858-8858-585858585810",
      "name": "Format Glossary",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        1520,
        0
      ]
    }
  ],
  "connections": {
    "Start": {
      "main": [
        [
          {
            "node": "Set Playlist",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Set Playlist": {
      "main": [
        [
          {
            "node": "Get Playlist Videos",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Get Playlist Videos": {
      "main": [
        [
          {
            "node": "Extract Video List",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Extract Video List": {
      "main": [
        [
          {
            "node": "Keep First 5",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Keep First 5": {
      "main": [
        [
          {
            "node": "Get Transcript (TranscriptAPI)",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Get Transcript (TranscriptAPI)": {
      "main": [
        [
          {
            "node": "Build Glossary Input",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Build Glossary Input": {
      "main": [
        [
          {
            "node": "Has Transcript?",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Has Transcript?": {
      "main": [
        [
          {
            "node": "Extract Terms (LLM)",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Extract Terms (LLM)": {
      "main": [
        [
          {
            "node": "Format Glossary",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "pinData": {}
}