// MongoDB Playground
// To disable this template go to Settings | MongoDB | Use Default Template For Playground.
// Make sure you are connected to enable completions and to be able to run a playground.
// Use Ctrl+Space inside a snippet or a string literal to trigger completions.

// Select the database to use.
use('test_FreePlanet');

let aggregation = [
  {
    $match: {
      idapp: "13",
      $or: [
        {
          deleted: {
            $exists: false,
          },
        },
        {
          deleted: {
            $exists: true,
            $eq: false,
          },
        },
      ],
    },
  },
  {
    $group: {
      _id: "$aportador_solidario",
      count: {
        $sum: 1,
      },
    },
  },
  {
      $match: { "count": { $gte: 2 } }
  },
  {
    $sort: {
      count: -1,
    },
  },  
  {
    $lookup: {
      from: "users",
      let: {
        username: "$_id",
        idapp: "13",
      },
      pipeline: [
        {
          $match: {
            $expr: {
              $and: [
                {
                  $eq: [
                    "$$username",
                    "$username",
                  ],
                },
                {
                  $eq: [
                    "$$idapp",
                    "$idapp",
                  ],
                },
              ],
            },
          },
        },
      ],
      as: "user",
    },
  },
  { $unwind: "$user" },
  {
    $replaceRoot: {
      newRoot: {
        $mergeObjects: [ "$user", "$$ROOT" ],
      },
    },
  },
  {
    $project: {
      _id: 0,
      count: 1,
      aportador_solidario: 1,
      username: 1,
      name: 1,
      surname: 1,
      lasttimeonline: 1,
      idapp: 1,
      "profile.img": 1,
    },
  },
];

db.users.aggregate(aggregation);