stats

4 files changed, 211 insertions, 0 deletions

diff --git a/src/api/endpoints.ts b/src/api/endpoints.ts
index bb2501c982..5bbc480a8e 100644
--- a/src/api/endpoints.ts
+++ b/src/api/endpoints.ts
@@ -70,6 +70,9 @@ const endpoints: Endpoint[] = [
 		name: 'meta'
 	},
 	{
+		name: 'stats'
+	},
+	{
 		name: 'username/available'
 	},
 	{
@@ -110,6 +113,12 @@ const endpoints: Endpoint[] = [
 		secure: true
 	},
 	{
+		name: 'aggregation/posts',
+	},
+	{
+		name: 'aggregation/users',
+	},
+	{
 		name: 'aggregation/users/activity',
 	},
 	{
diff --git a/src/api/endpoints/aggregation/posts.ts b/src/api/endpoints/aggregation/posts.ts
new file mode 100644
index 0000000000..573816e4fd
--- /dev/null
+++ b/src/api/endpoints/aggregation/posts.ts
@@ -0,0 +1,95 @@
+/**
+ * Module dependencies
+ */
+import $ from 'cafy';
+import Post from '../../models/post';
+
+/**
+ * Aggregate posts
+ *
+ * @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 datas = await Post
+		.aggregate([
+			{ $project: {
+				repost_id: '$repost_id',
+				reply_to_id: '$reply_to_id',
+				created_at: { $add: ['$created_at', 9 * 60 * 60 * 1000] } // Convert into JST
+			}},
+			{ $project: {
+				date: {
+					year: { $year: '$created_at' },
+					month: { $month: '$created_at' },
+					day: { $dayOfMonth: '$created_at' }
+				},
+				type: {
+					$cond: {
+						if: { $ne: ['$repost_id', null] },
+						then: 'repost',
+						else: {
+							$cond: {
+								if: { $ne: ['$reply_to_id', null] },
+								then: 'reply',
+								else: 'post'
+							}
+						}
+					}
+				}}
+			},
+			{ $group: { _id: {
+				date: '$date',
+				type: '$type'
+			}, count: { $sum: 1 } } },
+			{ $group: {
+				_id: '$_id.date',
+				data: { $addToSet: {
+					type: '$_id.type',
+					count: '$count'
+				}}
+			} }
+		]);
+
+	datas.forEach(data => {
+		data.date = data._id;
+		delete data._id;
+
+		data.posts = (data.data.filter(x => x.type == 'post')[0] || { count: 0 }).count;
+		data.reposts = (data.data.filter(x => x.type == 'repost')[0] || { count: 0 }).count;
+		data.replies = (data.data.filter(x => x.type == 'reply')[0] || { count: 0 }).count;
+
+		delete data.data;
+	});
+
+	const graph = [];
+
+	for (let i = 0; i < limit; i++) {
+		const day = new Date(new Date().setDate(new Date().getDate() - i));
+
+		const data = datas.filter(d =>
+			d.date.year == day.getFullYear() && d.date.month == day.getMonth() + 1 && d.date.day == day.getDate()
+		)[0];
+
+		if (data) {
+			graph.push(data);
+		} else {
+			graph.push({
+				date: {
+					year: day.getFullYear(),
+					month: day.getMonth() + 1, // In JavaScript, month is zero-based.
+					day: day.getDate()
+				},
+				posts: 0,
+				reposts: 0,
+				replies: 0
+			});
+		}
+	}
+
+	res(graph);
+});
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);
+});
diff --git a/src/api/endpoints/stats.ts b/src/api/endpoints/stats.ts
new file mode 100644
index 0000000000..a6084cd17a
--- /dev/null
+++ b/src/api/endpoints/stats.ts
@@ -0,0 +1,48 @@
+/**
+ * Module dependencies
+ */
+import Post from '../models/post';
+import User from '../models/user';
+
+/**
+ * @swagger
+ * /stats:
+ *   post:
+ *     summary: Show the misskey's statistics
+ *     responses:
+ *       200:
+ *         description: Success
+ *         schema:
+ *           type: object
+ *           properties:
+ *             posts_count:
+ *               description: count of all posts of misskey
+ *               type: number
+ *             users_count:
+ *               description: count of all users of misskey
+ *               type: number
+ *
+ *       default:
+ *         description: Failed
+ *         schema:
+ *           $ref: "#/definitions/Error"
+ */
+
+/**
+ * Show the misskey's statistics
+ *
+ * @param {any} params
+ * @return {Promise<any>}
+ */
+module.exports = params => new Promise(async (res, rej) => {
+	const postsCount = await Post
+		.count();
+
+	const usersCount = await User
+		.count();
+
+	res({
+		posts_count: postsCount,
+		users_count: usersCount
+	});
+});