维护计划程序-通过ICS邮件

• •Google 账号和 Gmail API 凭证
• •Google Sheets API 凭证

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        "content": "## 通过 ICS 邮件的预防性维护计划程序 (n8n | Google Sheets | SMTP)"
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      "parameters": {
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        "filtersUI": {
          "values": [
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              "lookupValue": "={{ $json[\"Day of month\"] }}/{{ $json.Month }}/{{ $json.Year }}",
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        "jsCode": "// Utility function: pad number to 2 digits\nfunction pad(n) { return n < 10 ? '0' + n : n; }\n\nconst result = [];\nfor (const item of $input.all()) {\n  // Parse and convert date to iCal format (YYYYMMDDT090000Z)\n  let rawDate = item.json.date;\n  // Your date is \"30/July/2025\", convert it to YYYYMMDD\n  const monthNames = {\n    \"January\": \"01\", \"February\": \"02\", \"March\": \"03\", \"April\": \"04\",\n    \"May\": \"05\", \"June\": \"06\", \"July\": \"07\", \"August\": \"08\",\n    \"September\": \"09\", \"October\": \"10\", \"November\": \"11\", \"December\": \"12\"\n  };\n  // Split and parse date\n  let [day, month, year] = rawDate.split(\"/\");\n  let eventDate = `${year}${monthNames[month]}${pad(Number(day))}`;\n  // Set time: 09:00 to 10:00 UTC (adjust as needed)\n  let dtStart = `${eventDate}T090000Z`;\n  let dtEnd   = `${eventDate}T100000Z`;\n  // Push the ICS content as a new field\n  result.push({\n    json: {\n      ...item.json,\n      dtStart: dtStart,\n      dtEnd: dtEnd\n    }\n  });\n}\n\nreturn result;\n"
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      "typeVersion": 2
    },
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      "id": "82b85f31-4329-47ad-a1d0-a4a9959b13e4",
      "name": "创建 ICS 文件",
      "type": "n8n-nodes-base.convertToFile",
      "position": [
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      ],
      "parameters": {
        "end": "={{ $json.dtEnd }}",
        "start": "={{ $json.dtStart }}",
        "title": "=Maintenance",
        "operation": "iCal",
        "additionalFields": {
          "location": "={{ $json.location }}",
          "description": "=Asset - {{ $json.asset }}\nTask - {{ $json.task }}"
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    {
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      "name": "发送日历邀请邮件",
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      "webhookId": "03bf7b9d-1dff-406d-96bd-36d2ac261e96",
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        "message": "=Hello,\n\nYou have a scheduled preventive maintenance task today.\n\nDetails:\n- Asset: {{ $('Read Maintenance Tasks').item.json.asset }}\n- Task: {{ $('Read Maintenance Tasks').item.json.task }}\n- Location: {{ $('Read Maintenance Tasks').item.json.location }}\n- Date: {{ $('Read Maintenance Tasks').item.json.date }}\n\nPlease find the calendar invite attached. Add it to your calendar so you don’t miss the task.\n\nThank you,\nMaintenance Team\n",
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          "id": "Kb30iigFce7pjkMZ",
          "name": "Gmail account 5"
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