91 lines
1.9 KiB
TypeScript
91 lines
1.9 KiB
TypeScript
/**
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* Module dependencies
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*/
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import $ from 'cafy';
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import Post from '../../models/post';
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/**
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* Aggregate posts
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*
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* @param {any} params
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* @return {Promise<any>}
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*/
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module.exports = params => new Promise(async (res, rej) => {
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// Get 'limit' parameter
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const [limit = 365, limitErr] = $(params.limit).optional.number().range(1, 365).$;
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if (limitErr) return rej('invalid limit param');
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const datas = await Post
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.aggregate([
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{ $project: {
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repost_id: '$repost_id',
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reply_to_id: '$reply_to_id',
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created_at: { $add: ['$created_at', 9 * 60 * 60 * 1000] } // Convert into JST
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}},
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{ $project: {
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date: {
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year: { $year: '$created_at' },
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month: { $month: '$created_at' },
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day: { $dayOfMonth: '$created_at' }
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},
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type: {
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$cond: {
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if: { $ne: ['$repost_id', null] },
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then: 'repost',
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else: {
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$cond: {
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if: { $ne: ['$reply_to_id', null] },
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then: 'reply',
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else: 'post'
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}
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}
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}
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}}
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},
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{ $group: { _id: {
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date: '$date',
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type: '$type'
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}, count: { $sum: 1 } } },
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{ $group: {
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_id: '$_id.date',
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data: { $addToSet: {
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type: '$_id.type',
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count: '$count'
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}}
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} }
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]);
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datas.forEach(data => {
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data.date = data._id;
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delete data._id;
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data.posts = (data.data.filter(x => x.type == 'post')[0] || { count: 0 }).count;
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data.reposts = (data.data.filter(x => x.type == 'repost')[0] || { count: 0 }).count;
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data.replies = (data.data.filter(x => x.type == 'reply')[0] || { count: 0 }).count;
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delete data.data;
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});
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const graph = [];
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for (let i = 0; i < limit; i++) {
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const day = new Date(new Date().setDate(new Date().getDate() - i));
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const data = datas.filter(d =>
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d.date.year == day.getFullYear() && d.date.month == day.getMonth() + 1 && d.date.day == day.getDate()
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)[0];
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if (data) {
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graph.push(data);
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} else {
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graph.push({
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posts: 0,
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reposts: 0,
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replies: 0
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});
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}
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}
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res(graph);
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});
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