egirlskey/src/server/api/endpoints/aggregation/posts.ts
2018-07-06 02:58:29 +09:00

84 lines
1.9 KiB
TypeScript

import $ from 'cafy';
import Note from '../../../../models/note';
/**
* Aggregate notes
*/
export default (params: any) => new Promise(async (res, rej) => {
// Get 'limit' parameter
const [limit = 365, limitErr] = $.num.optional.range(1, 365).get(params.limit);
if (limitErr) return rej('invalid limit param');
const datas = await Note
.aggregate([
{ $project: {
renoteId: '$renoteId',
replyId: '$replyId',
createdAt: { $add: ['$createdAt', 9 * 60 * 60 * 1000] } // Convert into JST
}},
{ $project: {
date: {
year: { $year: '$createdAt' },
month: { $month: '$createdAt' },
day: { $dayOfMonth: '$createdAt' }
},
type: {
$cond: {
if: { $ne: ['$renoteId', null] },
then: 'renote',
else: {
$cond: {
if: { $ne: ['$replyId', null] },
then: 'reply',
else: 'note'
}
}
}
}}
},
{ $group: { _id: {
date: '$date',
type: '$type'
}, count: { $sum: 1 } } },
{ $group: {
_id: '$_id.date',
data: { $addToSet: {
type: '$_id.type',
count: '$count'
}}
} }
]);
datas.forEach((data: any) => {
data.date = data._id;
delete data._id;
data.notes = (data.data.filter((x: any) => x.type == 'note')[0] || { count: 0 }).count;
data.renotes = (data.data.filter((x: any) => x.type == 'renote')[0] || { count: 0 }).count;
data.replies = (data.data.filter((x: any) => x.type == 'reply')[0] || { count: 0 }).count;
delete data.data;
});
const graph = [];
for (let i = 0; i < limit; i++) {
const day = new Date(new Date().setDate(new Date().getDate() - i));
const data = datas.filter((d: any) =>
d.date.year == day.getFullYear() && d.date.month == day.getMonth() + 1 && d.date.day == day.getDate()
)[0];
if (data) {
graph.push(data);
} else {
graph.push({
notes: 0,
renotes: 0,
replies: 0
});
}
}
res(graph);
});