{
  "id": "kRZyX9H2uDHHncpE",
  "name": "MAM Transmission Manager",
  "nodes": [
    {
      "parameters": {},
      "id": "start",
      "name": "Start",
      "position": [
        224,
        128
      ],
      "type": "n8n-nodes-base.executeWorkflowTrigger",
      "typeVersion": 1
    },
    {
      "parameters": {
        "method": "POST",
        "url": "http://seed-1.dfw.ben.io:9091/transmission/rpc",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpBasicAuth",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "X-Transmission-Session-Id",
              "value": "={{ $json.session_id }}"
            }
          ]
        },
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={{ $json.transmission_body }}",
        "options": {
          "response": {
            "response": {
              "fullResponse": true
            }
          }
        }
      },
      "id": "http-add-torrent",
      "name": "Add Torrent to Transmission",
      "position": [
        2192,
        128
      ],
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "credentials": {
        "httpBasicAuth": {
          "id": "iymUPilnVhfL3h5D",
          "name": "transmission"
        }
      },
      "onError": "continueRegularOutput"
    },
    {
      "parameters": {
        "jsCode": "const responses = $input.all();\nconst originals = $('Start').all();\nconst mergedPayloads = $('Merge Session Context').all();\n\nfunction getOriginal(index) {\n  return originals[index]?.json || originals[0]?.json || {};\n}\n\nfunction getSessionId(index) {\n  return mergedPayloads[index]?.json?.session_id || mergedPayloads[0]?.json?.session_id || '';\n}\n\nconst outputs = [];\n\nfor (let i = 0; i < responses.length; i++) {\n  const item = responses[i];\n  const body = item.json.body || item.json;\n  const result = body?.result;\n  const args = body?.arguments || {};\n  const torrentInfo = args['torrent-added'] || args['torrent-duplicate'];\n  const sessionId = getSessionId(i);\n  const originalInput = getOriginal(i);\n\n  if (item.error || (!torrentInfo && result !== 'duplicate' && result !== 'success')) {\n    outputs.push({\n      json: {\n        status: 'failed',\n        error: item.error?.message || result || 'Unknown error adding torrent',\n        torrent_id: null,\n        session_id: sessionId,\n        original_input: originalInput\n      }\n    });\n    continue;\n  }\n\n  if (!torrentInfo) {\n    outputs.push({\n      json: {\n        status: 'failed',\n        error: 'Could not extract torrent info from response',\n        torrent_id: null,\n        session_id: sessionId,\n        original_input: originalInput\n      }\n    });\n    continue;\n  }\n\n  outputs.push({\n    json: {\n      status: 'queued',\n      torrent_id: torrentInfo.id,\n      torrent_hash: torrentInfo.hashString,\n      torrent_name: torrentInfo.name,\n      session_id: sessionId,\n      original_input: originalInput\n    }\n  });\n}\n\nreturn outputs;"
      },
      "id": "code-extract-torrent-id",
      "name": "Extract Torrent ID",
      "position": [
        2416,
        128
      ],
      "type": "n8n-nodes-base.code",
      "typeVersion": 2
    },
    {
      "parameters": {
        "amount": 30
      },
      "id": "wait-60s",
      "name": "Wait 60 Seconds",
      "position": [
        2688,
        288
      ],
      "type": "n8n-nodes-base.wait",
      "typeVersion": 1.1,
      "webhookId": "ae0f8400-3629-4965-989e-11e14a60a260"
    },
    {
      "parameters": {
        "method": "POST",
        "url": "http://seed-1.dfw.ben.io:9091/transmission/rpc",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpBasicAuth",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "X-Transmission-Session-Id",
              "value": "={{ $json.session_id || '' }}"
            }
          ]
        },
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={{ { method: 'torrent-get', arguments: { ids: [$json.torrent_id], fields: ['id','name','status','percentDone','files','downloadDir', 'hashString'] } } }}",
        "options": {}
      },
      "id": "http-check-status",
      "name": "Check Torrent Status",
      "position": [
        2688,
        64
      ],
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "credentials": {
        "httpBasicAuth": {
          "id": "iymUPilnVhfL3h5D",
          "name": "transmission"
        }
      },
      "onError": "continueRegularOutput"
    },
    {
      "parameters": {
        "jsCode": "// Check if torrent download is complete\n// Transmission status codes: 0=stopped, 4=downloading, 6=seeding\nconst item = $input.first();\nconst response = item.json;\n\nif (item.error || !response.arguments || !response.arguments.torrents) {\n  return [{\n    json: {\n      complete: false,\n      status: 'error',\n      error: item.error?.message || 'Failed to get torrent status',\n      retry: true\n    }\n  }];\n}\n\nconst torrent = response.arguments.torrents[0];\n\nif (!torrent) {\n  return [{\n    json: {\n      complete: false,\n      status: 'error',\n      error: 'Torrent not found in Transmission',\n      retry: false\n    }\n  }];\n}\n\nconst isComplete = torrent.status === 6 || (torrent.status === 0 && torrent.percentDone === 1);\n\n// Get original input to preserve history_id\nconst waitNode = $('Wait 60 Seconds').last();\nconst originalInput = waitNode ? (waitNode.json.original_input || {}) : {};\nconst historyId = originalInput.history_id;\n\nif (isComplete) {\n  const downloadDir = torrent.downloadDir || '/home/seed_/.transmission/downloads/audio';\n  \n  // Find largest file (likely the main audiobook) to handle multi-file/directory torrents\n  let largestFile = null;\n  let maxBytes = -1;\n  \n  if (torrent.files && torrent.files.length > 0) {\n    for (const file of torrent.files) {\n      if (file.length > maxBytes) {\n        maxBytes = file.length;\n        largestFile = file;\n      }\n    }\n  }\n  \n  // Use largest file path if found, otherwise fallback to torrent name (single file)\n  let relativePath = torrent.name;\n  if (largestFile) {\n    relativePath = largestFile.name;\n  }\n  \n  const filePath = `${downloadDir}/${relativePath}`;\n  \n  return [{\n    json: {\n      complete: true,\n      status: 'complete',\n      file_path: filePath,\n      filename: relativePath.split('/').pop(), // Just the filename part\n      torrent_id: torrent.id,\n      torrent_name: torrent.name,\n      torrent_hash: torrent.hashString,\n      percent_done: torrent.percentDone,\n      transmission_status: torrent.status,\n      history_id: historyId,\n      debug_original_keys: Object.keys(originalInput),\n      debug_wait_node_exists: !!waitNode\n    }\n  }];\n} else {\n  return [{\n    json: {\n      complete: false,\n      status: 'downloading',\n      percent_done: torrent.percentDone,\n      transmission_status: torrent.status,\n      retry: true\n    }\n  }];\n}"
      },
      "id": "code-check-completion",
      "name": "Check If Complete",
      "position": [
        2912,
        64
      ],
      "type": "n8n-nodes-base.code",
      "typeVersion": 2
    },
    {
      "parameters": {
        "conditions": {
          "conditions": [
            {
              "id": "condition-1",
              "leftValue": "={{ $json.complete }}",
              "operator": {
                "operation": "equals",
                "type": "boolean"
              },
              "rightValue": true
            }
          ],
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict"
          }
        },
        "options": {}
      },
      "id": "if-complete",
      "name": "Is Download Complete?",
      "position": [
        3136,
        64
      ],
      "type": "n8n-nodes-base.if",
      "typeVersion": 2
    },
    {
      "parameters": {
        "respondWith": "allIncomingItems",
        "options": {}
      },
      "id": "respond-complete",
      "name": "Respond Complete",
      "position": [
        3360,
        16
      ],
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "keep-context",
              "name": "torrent_id",
              "type": "string",
              "value": "={{ $('Extract Torrent ID').item.json.torrent_id }}"
            },
            {
              "id": "keep-hash",
              "name": "torrent_hash",
              "type": "string",
              "value": "={{ $('Extract Torrent ID').item.json.torrent_hash }}"
            },
            {
              "id": "keep-original",
              "name": "original_input",
              "type": "object",
              "value": "={{ $('Extract Torrent ID').item.json.original_input }}"
            },
            {
              "id": "keep-session",
              "name": "session_id",
              "type": "string",
              "value": "={{ $json.session_id || '' }}"
            }
          ]
        },
        "options": {}
      },
      "id": "loop-back",
      "name": "Loop Back to Wait",
      "position": [
        3360,
        240
      ],
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4
    },
    {
      "parameters": {
        "method": "POST",
        "url": "http://seed-1.dfw.ben.io:9091/transmission/rpc",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpBasicAuth",
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={{ { method: 'session-get' } }}",
        "options": {
          "response": {
            "response": {
              "fullResponse": true,
              "neverError": true
            }
          }
        }
      },
      "id": "http-request-session",
      "name": "Request Transmission Session",
      "position": [
        896,
        192
      ],
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "credentials": {
        "httpBasicAuth": {
          "id": "iymUPilnVhfL3h5D",
          "name": "transmission"
        }
      }
    },
    {
      "parameters": {
        "jsCode": "const item = $input.first();\nconst data = item.json || {};\nconst headers = data.headers || {};\nconst sessionId = headers['x-transmission-session-id'] || headers['X-Transmission-Session-Id'];\n\nif (!sessionId) {\n  throw new Error('Transmission session header missing');\n}\n\nreturn [{ json: { session_id: sessionId } }];"
      },
      "id": "code-session-header",
      "name": "Extract Session Header",
      "position": [
        1168,
        192
      ],
      "type": "n8n-nodes-base.code",
      "typeVersion": 2
    },
    {
      "parameters": {
        "jsCode": "// Loop over all items (books)\nreturn items.map(item => {\n  // Get the Base64 file string safely\n  const binaryData = item.binary.data.data;\n  \n  // Create the exact JSON body Transmission expects\n  const payload = {\n    method: \"torrent-add\",\n    arguments: {\n      metainfo: binaryData,\n      \"download-dir\": \"/home/seed_/.transmission/downloads/audio\", // Using your seedbox path\n      paused: true\n    }\n  };\n\n  // Return it as a normal JSON field called 'transmission_body'\n  return {\n    json: {\n      ...item.json,\n      transmission_body: payload\n    }\n  };\n});"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        1936,
        128
      ],
      "id": "0b011613-50e9-4612-ac6e-1f6ac0e39ebb",
      "name": "Code in JavaScript"
    },
    {
      "parameters": {
        "jsCode": "// 1. Get the Session ID from the \"Extract\" node\n// (We use .first() because there is only one session ID)\nconst sessionNode = $('Extract Session Header').first();\n// Robustly find the ID whether it's in headers or root\nconst sessionId = sessionNode.json.headers ? sessionNode.json.headers['x-transmission-session-id'] : sessionNode.json.session_id;\n\n// 2. Get all Files from the \"Start\" node\nconst files = $('Start').all();\n\n// 3. Map the ID onto every file while PRESERVING the binary data\nreturn files.map(file => {\n  return {\n    json: {\n      ...file.json,\n      session_id: sessionId\n    },\n    binary: file.binary // <--- This is the critical part we were losing!\n  };\n});"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        1712,
        128
      ],
      "id": "d6d9f145-6b10-452f-aa08-2dc669c3b4d6",
      "name": "Merge Session to Files"
    },
    {
      "parameters": {
        "mode": "combine",
        "combineBy": "combineByPosition",
        "options": {}
      },
      "type": "n8n-nodes-base.merge",
      "typeVersion": 3.2,
      "position": [
        1488,
        128
      ],
      "id": "dde23141-d708-48e7-942f-08aa1d749189",
      "name": "Merge Session Context"
    }
  ],
  "connections": {
    "Add Torrent to Transmission": {
      "main": [
        [
          {
            "index": 0,
            "node": "Extract Torrent ID",
            "type": "main"
          }
        ]
      ]
    },
    "Check If Complete": {
      "main": [
        [
          {
            "index": 0,
            "node": "Is Download Complete?",
            "type": "main"
          }
        ]
      ]
    },
    "Check Torrent Status": {
      "main": [
        [
          {
            "index": 0,
            "node": "Check If Complete",
            "type": "main"
          }
        ]
      ]
    },
    "Extract Session Header": {
      "main": [
        [
          {
            "node": "Merge Session Context",
            "type": "main",
            "index": 1
          }
        ]
      ]
    },
    "Extract Torrent ID": {
      "main": [
        []
      ]
    },
    "Is Download Complete?": {
      "main": [
        [
          {
            "index": 0,
            "node": "Respond Complete",
            "type": "main"
          }
        ],
        [
          {
            "index": 0,
            "node": "Loop Back to Wait",
            "type": "main"
          }
        ]
      ]
    },
    "Loop Back to Wait": {
      "main": [
        [
          {
            "index": 0,
            "node": "Wait 60 Seconds",
            "type": "main"
          }
        ]
      ]
    },
    "Request Transmission Session": {
      "main": [
        [
          {
            "index": 0,
            "node": "Extract Session Header",
            "type": "main"
          }
        ]
      ]
    },
    "Start": {
      "main": [
        [
          {
            "node": "Request Transmission Session",
            "type": "main",
            "index": 0
          },
          {
            "node": "Merge Session Context",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Wait 60 Seconds": {
      "main": [
        [
          {
            "index": 0,
            "node": "Check Torrent Status",
            "type": "main"
          }
        ]
      ]
    },
    "Code in JavaScript": {
      "main": [
        [
          {
            "node": "Add Torrent to Transmission",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Merge Session to Files": {
      "main": [
        [
          {
            "node": "Code in JavaScript",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Merge Session Context": {
      "main": [
        [
          {
            "node": "Merge Session to Files",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {},
  "triggerCount": 0,
  "versionId": "ef553d09-89f5-4f19-9003-0f2040bf82ba",
  "owner": {
    "type": "personal",
    "projectId": "FeLO36wNUAcn61Wj",
    "projectName": "Ben W <admin@ben.io>",
    "personalEmail": "admin@ben.io"
  },
  "parentFolderId": "6tDyZCwqELStb6Ik",
  "isArchived": false
}