77 lines
1.5 KiB
TypeScript
77 lines
1.5 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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import Reaction from '../../../models/post-reaction';
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/**
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* Aggregate reaction of a post
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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 'post_id' parameter
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const [postId, postIdErr] = $(params.post_id).id().$;
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if (postIdErr) return rej('invalid post_id param');
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// Lookup post
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const post = await Post.findOne({
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_id: postId
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});
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if (post === null) {
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return rej('post not found');
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}
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const datas = await Reaction
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.aggregate([
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{ $match: { post_id: post._id } },
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{ $project: {
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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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}},
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{ $group: {
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_id: '$date',
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count: { $sum: 1 }
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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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});
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const graph = [];
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for (let i = 0; i < 30; 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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date: {
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year: day.getFullYear(),
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month: day.getMonth() + 1, // In JavaScript, month is zero-based.
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day: day.getDate()
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},
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count: 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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