{
  "name": "Email a Weekly Todoist Review",
  "tags": [],
  "nodes": [
    {
      "id": "email-weekly-todoist-review-0",
      "name": "When clicking ‘Test workflow’",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        0,
        180
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "email-weekly-todoist-review-1",
      "name": "Every Friday afternoon",
      "type": "n8n-nodes-base.scheduleTrigger",
      "position": [
        0,
        0
      ],
      "parameters": {
        "rule": {
          "interval": [
            {
              "field": "weeks",
              "triggerAtDay": [
                5
              ],
              "triggerAtHour": 15
            }
          ]
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "email-weekly-todoist-review-2",
      "name": "Set the review window",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "parameters": {
        "mode": "runOnceForAllItems",
        "jsCode": "const until=Date.now(); return [{json:{until,since:new Date(until-604800000).toISOString(),end:new Date(until).toISOString()}}];"
      }
    },
    {
      "id": "email-weekly-todoist-review-3",
      "name": "Read Todoist completed tasks",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "parameters": {
        "method": "GET",
        "url": "={{ 'https://api.todoist.com/api/v1/tasks/completed/by_completion_date?since=' + encodeURIComponent($json.since) + '&until=' + encodeURIComponent($json.end) + '&limit=100' }}",
        "authentication": "predefinedCredentialType",
        "nodeCredentialType": "todoistApi",
        "options": {
          "response": {
            "response": {
              "responseFormat": "json",
              "fullResponse": true
            }
          },
          "pagination": {
            "pagination": {
              "paginationMode": "responseContainsNextURL",
              "nextURL": "={{ 'https://api.todoist.com/api/v1/tasks/completed/by_completion_date?since=' + encodeURIComponent($('Set the review window').first().json.since) + '&until=' + encodeURIComponent($('Set the review window').first().json.end) + '&limit=100' + ($pageCount===0 ? '' : '&cursor=' + encodeURIComponent($response.body.next_cursor)) }}",
              "paginationCompleteWhen": "other",
              "completeExpression": "={{ (()=>{const b=$response.body;if(!b||!Array.isArray(b.items)||!(b.next_cursor===null||(typeof b.next_cursor==='string' && b.next_cursor)))throw Error('Invalid Todoist page');if($pageCount>=100 && b.next_cursor)throw Error('Too many Todoist pages');return b.next_cursor===null})() }}",
              "limitPagesFetched": false
            }
          }
        }
      }
    },
    {
      "id": "email-weekly-todoist-review-4",
      "name": "Prepare the email",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "parameters": {
        "mode": "runOnceForAllItems",
        "jsCode": "function collect({previousState,body,statusCode,bodyEncoding,until}) {\n let s=previousState;\n if(!s){const t=until==null?Date.now():Number(until);if(!Number.isFinite(t))throw Error('Invalid review time');s={since:new Date(t-604800000).toISOString(),until:new Date(t).toISOString(),items:[],cursors:[],pages:0,cursor:null};}\n else {if(statusCode<200||statusCode>=300)throw Error('Todoist request failed');let b=body;if(typeof b==='string'){try{b=JSON.parse(b)}catch{throw Error('Invalid Todoist response')}}if(!b||!Array.isArray(b.items)||!(b.next_cursor===null||typeof b.next_cursor==='string'))throw Error('Invalid Todoist page');if(b.next_cursor!==null&&(!b.next_cursor||s.cursors.includes(b.next_cursor)))throw Error('Invalid or repeated cursor');s={...s,items:[...s.items,...b.items],pages:s.pages+1,cursor:b.next_cursor,cursors:b.next_cursor?[...s.cursors,b.next_cursor]:s.cursors};if(s.pages>=100&&s.cursor)throw Error('Too many Todoist pages');}\n const more=s.pages===0||s.cursor!==null;return {state:s,more,query:{since:s.since,until:s.until,limit:100,...(s.cursor?{cursor:s.cursor}:{})},items:s.items};\n}\n\nfunction summarize({items,ignoredProjects}) {if(!Array.isArray(items)||!Array.isArray(ignoredProjects)||ignoredProjects.some(x=>typeof x!=='string'))throw Error('Invalid review configuration');const groups={};for(const item of items){if(typeof item.project_id!=='string'||typeof item.content!=='string'||typeof item.completed_at!=='string'||!Number.isFinite(Date.parse(item.completed_at)))throw Error('Invalid completed task');if(ignoredProjects.includes(item.project_id))continue;const date=new Date(item.completed_at).toISOString().slice(0,10);(groups[date]??=[]).push(item.content)}const esc=s=>s.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/\"/g,'&quot;').replace(/'/g,'&#39;');let html='<h1>Completed Items</h1>';for(const [date,contents] of Object.entries(groups))html+=`<h2>${date}</h2><ul>`+contents.map(x=>`<li>${esc(x)}</li>`).join('')+'</ul>';return {html,hasItems:Object.keys(groups).length>0};}\n\nconst ignoredProjects=[];let state=collect({previousState:null,until:$('Set the review window').first().json.until}).state,result;for(const item of $input.all()){result=collect({previousState:state,body:item.json.body,statusCode:item.json.statusCode});state=result.state}if(!result||result.more)throw Error('Incomplete Todoist pages');const x=summarize({items:result.items,ignoredProjects});return x.hasItems?[{json:x}]:[];"
      }
    },
    {
      "id": "email-weekly-todoist-review-5",
      "name": "Send Email",
      "type": "n8n-nodes-base.emailSend",
      "position": [
        860,
        0
      ],
      "parameters": {
        "fromEmail": "sender@example.com",
        "toEmail": "recipient@example.com",
        "subject": "Todoist Weekly Review",
        "emailFormat": "html",
        "html": "={{ $json.html }}",
        "options": {
          "appendAttribution": false
        }
      },
      "typeVersion": 2.1
    }
  ],
  "active": false,
  "pinData": {},
  "settings": {
    "executionOrder": "v1",
    "timezone": "UTC"
  },
  "connections": {
    "When clicking ‘Test workflow’": {
      "main": [
        [
          {
            "node": "Set the review window",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Every Friday afternoon": {
      "main": [
        [
          {
            "node": "Set the review window",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Set the review window": {
      "main": [
        [
          {
            "node": "Read Todoist completed tasks",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Read Todoist completed tasks": {
      "main": [
        [
          {
            "node": "Prepare the email",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Prepare the email": {
      "main": [
        [
          {
            "node": "Send Email",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}