mizzkey/src/api/endpoints/aggregation/users.ts

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2017-08-12 08:17:03 +02:00
/**
* Module dependencies
*/
import $ from 'cafy';
import User from '../../models/user';
/**
* Aggregate users
*
* @param {any} params
* @return {Promise<any>}
*/
module.exports = params => new Promise(async (res, rej) => {
// Get 'limit' parameter
const [limit = 365, limitErr] = $(params.limit).optional.number().range(1, 365).$;
if (limitErr) return rej('invalid limit param');
const startTime = new Date(new Date().setMonth(new Date().getMonth() - 1));
const users = await User
.find({
$or: [
{ deleted_at: { $exists: false } },
{ deleted_at: { $gt: startTime } }
]
}, {
_id: false,
created_at: true,
deleted_at: true
}, {
sort: { created_at: -1 }
});
const graph = [];
for (let i = 0; i < limit; i++) {
let day = new Date(new Date().setDate(new Date().getDate() - i));
day = new Date(day.setMilliseconds(999));
day = new Date(day.setSeconds(59));
day = new Date(day.setMinutes(59));
day = new Date(day.setHours(23));
// day = day.getTime();
const count = users.filter(f =>
f.created_at < day && (f.deleted_at == null || f.deleted_at > day)
).length;
graph.push({
date: {
year: day.getFullYear(),
month: day.getMonth() + 1, // In JavaScript, month is zero-based.
day: day.getDate()
},
count: count
});
}
res(graph);
});