Post --> Note

Closes #1411

src/server/api/endpoints/aggregation/notes/reactions.ts

@@ -0,0 +1,72 @@
+/**
+ * Module dependencies
+ */
+import $ from 'cafy';
+import Note from '../../../../../models/note';
+import Reaction from '../../../../../models/note-reaction';
+
+/**
+ * Aggregate reactions of a note
+ *
+ * @param {any} params
+ * @return {Promise<any>}
+ */
+module.exports = (params) => new Promise(async (res, rej) => {
+	// Get 'noteId' parameter
+	const [noteId, noteIdErr] = $(params.noteId).id().$;
+	if (noteIdErr) return rej('invalid noteId param');
+
+	// Lookup note
+	const note = await Note.findOne({
+		_id: noteId
+	});
+
+	if (note === null) {
+		return rej('note not found');
+	}
+
+	const startTime = new Date(new Date().setMonth(new Date().getMonth() - 1));
+
+	const reactions = await Reaction
+		.find({
+			noteId: note._id,
+			$or: [
+				{ deletedAt: { $exists: false } },
+				{ deletedAt: { $gt: startTime } }
+			]
+		}, {
+			sort: {
+				_id: -1
+			},
+			fields: {
+				_id: false,
+				noteId: false
+			}
+		});
+
+	const graph = [];
+
+	for (let i = 0; i < 30; 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 = reactions.filter(r =>
+			r.createdAt < day && (r.deletedAt == null || r.deletedAt > 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);
+});