google apps script for pushing a tasks list to slack

todoist_slack.js

// 参考：
// http://ma13.hateblo.jp/entry/2015/11/29/151235
// http://tech.camph.net/slack-bot-with-gas/ 

var todoistApiURL = "https://todoist.com/API/v6/sync";

var slackToken = PropertiesService.getScriptProperties().getProperty('SLACK_ACCESS_TOKEN');
var todoistToken = PropertiesService.getScriptProperties().getProperty('TODOIST_ACCESS_TOKEN')

var bot_name = "todoist";
var bot_icon = <icon URL of Todoist>;

var embedding_date = [
                    [-365, 0, 'スタックされた'],
                    [0, 1, '今日の'],
                    [1, 3, '三日以内の'],
                    [3, 7, '今週の']
                ]

function getUncompletedItems() {
  
     var payload =
   {
     "token" : todoistToken,
     "seq_no" : 0,
     "resource_types" : '["all"]'
   };

   var options =
   {
     method : "post",
     payload : payload,
     contentType: 'application/x-www-form-urlencoded',
     muteHttpExceptions : true
   };

   var response = UrlFetchApp.fetch(todoistApiURL, options);
   var content = JSON.parse(response.getContentText());
   //  Logger.log(JSON.stringify(content));
  
  return content;
}

function post() {

  var content = getUncompletedItems();
  
  var str = getTaksText(content); 

  var slackApp = SlackApp.create(slackToken); //SlackApp インスタンスの取得
 
  var usr =  {
    username: bot_name,
    icon_url: bot_icon
  };
 
  slackApp.postMessage("#todo", str, usr);
  
}


function getTaksText(content) {
  
  var items = content.Items;
  var user = content.User;
  
  if (!items){
    Logger.log("failed to fetch tasks from todoist");
    return "failed to fetch tasks from todoist";
  } else {
  
    var content = [];
    var not_dated_task = [];
    
    items.sort(
      function(a,b){
        var dateA = new Date(a.due_date);
        var dateB = new Date(b.due_date);
        return dateA - dateB;
      }
    );
    
    var now = new Date();
    for each (var e in embedding_date) {
      var emb_content = [];
      var start = new Date(now.getFullYear(),now.getMonth(),now.getDate() + e[0]);
      var end = new Date(now.getFullYear(),now.getMonth(),now.getDate() + e[1]);

      for each (var t in items) {
        var date = new Date(t.due_date); // Task due_date
        
        if(start.getTime() <= date.getTime() && date.getTime() < end.getTime()){
          emb_content[emb_content.length] = '> ・'+t.date_string+'\t'+t.content;
        }
      }
      if (emb_content.length > 0) {
        emb_content.unshift('>*#' + e[2] + 'Todoist:*')
        Array.prototype.push.apply(content, emb_content);
      }
    }
    
    if (content.length === 0) {
      content.unshift('>*直近1週間でのTodoはありません。\n>Excellent work!!!*')
    }
  
    // not dated tasks 
    for each (var t in items) {
      if (t.due_date === null) {        
        not_dated_task[not_dated_task.length] = '> ・' + t.content;
      } 
    }
    
    if (not_dated_task.length > 0) {
      not_dated_task.unshift('>──────────────────────────────\n>*#日付指定の無いTodoist:*');  
      Array.prototype.push.apply(content, not_dated_task);
    }  
  
    content[content.length] = '>──────────────────────────────\n>*#Karma: '+ user.karma +' ' + user.karma_trend + "*" ;
    var str = content.join('\n');
    
    Logger.log(str);
    return str;
  }
}