From dd1aa8c7d6ec003fcf187c1fc8e6c56f60723414 Mon Sep 17 00:00:00 2001
From: syuilo <syuilotan@yahoo.co.jp>
Date: Sat, 12 Aug 2017 15:17:03 +0900
Subject: stats

---
 src/api/endpoints/aggregation/users.ts | 59 ++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 src/api/endpoints/aggregation/users.ts

(limited to 'src/api/endpoints/aggregation/users.ts')

diff --git a/src/api/endpoints/aggregation/users.ts b/src/api/endpoints/aggregation/users.ts
new file mode 100644
index 0000000000..9be4ca12a1
--- /dev/null
+++ b/src/api/endpoints/aggregation/users.ts
@@ -0,0 +1,59 @@
+/**
+ * Module dependencies
+ */
+import $ from 'cafy';
+import User from '../../models/user';
+
+/**
+ * Aggregate users
+ *
+ * @param {any} params
+ * @return {Promise<any>}
+ */
+module.exports = params => new Promise(async (res, rej) => {
+	// Get 'limit' parameter
+	const [limit = 365, limitErr] = $(params.limit).optional.number().range(1, 365).$;
+	if (limitErr) return rej('invalid limit param');
+
+	const startTime = new Date(new Date().setMonth(new Date().getMonth() - 1));
+
+	const users = await User
+		.find({
+			$or: [
+				{ deleted_at: { $exists: false } },
+				{ deleted_at: { $gt: startTime } }
+			]
+		}, {
+			_id: false,
+			created_at: true,
+			deleted_at: true
+		}, {
+			sort: { created_at: -1 }
+		});
+
+	const graph = [];
+
+	for (let i = 0; i < limit; 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 = users.filter(f =>
+			f.created_at < day && (f.deleted_at == null || f.deleted_at > 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);
+});
-- 
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