Implement active users chart

Resolve #3904

src/server/api/endpoints/charts/active-users.ts

@@ -0,0 +1,34 @@
+import $ from 'cafy';
+import define from '../../define';
+import activeUsersChart from '../../../../chart/active-users';
+
+export const meta = {
+	stability: 'stable',
+
+	desc: {
+		'ja-JP': 'アクティブユーザーのチャートを取得します。'
+	},
+
+	params: {
+		span: {
+			validator: $.str.or(['day', 'hour']),
+			desc: {
+				'ja-JP': '集計のスパン (day または hour)'
+			}
+		},
+
+		limit: {
+			validator: $.num.optional.range(1, 500),
+			default: 30,
+			desc: {
+				'ja-JP': '最大数。例えば 30 を指定したとすると、スパンが"day"の場合は30日分のデータが、スパンが"hour"の場合は30時間分のデータが返ります。'
+			}
+		},
+	}
+};
+
+export default define(meta, (ps) => new Promise(async (res, rej) => {
+	const stats = await activeUsersChart.getChart(ps.span as any, ps.limit);
+
+	res(stats);
+}));

src/server/api/endpoints/notes/hybrid-timeline.ts

@@ -6,6 +6,7 @@ import { packMany } from '../../../../models/note';
 import define from '../../define';
 import { countIf } from '../../../../prelude/array';
 import fetchMeta from '../../../../misc/fetch-meta';
+import activeUsersChart from '../../../../chart/active-users';
 
 export const meta = {
 	desc: {
@@ -272,4 +273,6 @@ export default define(meta, (ps, user) => new Promise(async (res, rej) => {
 		});
 
 	res(await packMany(timeline, user));
+
+	activeUsersChart.update(user);
 }));

src/server/api/endpoints/notes/local-timeline.ts

@@ -5,6 +5,7 @@ import { packMany } from '../../../../models/note';
 import define from '../../define';
 import { countIf } from '../../../../prelude/array';
 import fetchMeta from '../../../../misc/fetch-meta';
+import activeUsersChart from '../../../../chart/active-users';
 
 export const meta = {
 	desc: {
@@ -161,4 +162,8 @@ export default define(meta, (ps, user) => new Promise(async (res, rej) => {
 		});
 
 	res(await packMany(timeline, user));
+
+	if (user) {
+		activeUsersChart.update(user);
+	}
 }));

src/server/api/endpoints/notes/timeline.ts

@@ -5,6 +5,7 @@ import { getFriends } from '../../common/get-friends';
 import { packMany } from '../../../../models/note';
 import define from '../../define';
 import { countIf } from '../../../../prelude/array';
+import activeUsersChart from '../../../../chart/active-users';
 
 export const meta = {
 	desc: {
@@ -266,4 +267,6 @@ export default define(meta, (ps, user) => new Promise(async (res, rej) => {
 
 	// Serialize
 	res(await packMany(timeline, user));
+
+	activeUsersChart.update(user);
 }));