Implement new endpoint

This commit is contained in:
syuilo 2018-09-07 19:23:39 +09:00
parent 7343e6e2e8
commit e0deaec695
No known key found for this signature in database
GPG Key ID: BDC4C49D06AB9D69
1 changed files with 64 additions and 0 deletions

View File

@ -0,0 +1,64 @@
import Note from '../../../../models/note';
import Meta from '../../../../models/meta';
export default () => new Promise(async (res, rej) => {
const meta = await Meta.findOne({});
const hidedTags = (meta.hidedTags || []).map(t => t.toLowerCase());
const span = 1000 * 60 * 60 * 24 * 7; // 1週間
//#region 1. 指定期間の内に投稿されたハッシュタグ(とユーザーのペア)を集計
const data = await Note.aggregate([{
$match: {
createdAt: {
$gt: new Date(Date.now() - span)
},
tagsLower: {
$exists: true,
$ne: []
}
}
}, {
$unwind: '$tagsLower'
}, {
$group: {
_id: { tag: '$tagsLower', userId: '$userId' }
}
}]) as Array<{
_id: {
tag: string;
userId: any;
}
}>;
//#endregion
if (data.length == 0) {
return res([]);
}
let tags: Array<{
name: string;
count: number;
}> = [];
// カウント
data.map(x => x._id).forEach(x => {
// ブラックリストに登録されているタグなら弾く
if (hidedTags.includes(x.tag)) return;
const i = tags.findIndex(tag => tag.name == x.tag);
if (i != -1) {
tags[i].count++;
} else {
tags.push({
name: x.tag,
count: 1
});
}
});
// タグを人気順に並べ替え
tags = tags.sort((a, b) => b.count - a.count);
res(tags);
});