Introduce per-instance chart (#4183)

* Introduce per-instance chart

* Implement chart view in client

* Handle note deleting

* More chart srcs

* Add drive stats

* Improve drive stats

* Fix bug

* Add icon

src/server/api/endpoints/charts/instance.ts

@@ -0,0 +1,42 @@
+import $ from 'cafy';
+import define from '../../define';
+import instanceChart from '../../../../services/chart/instance';
+
+export const meta = {
+	stability: 'stable',
+
+	desc: {
+		'ja-JP': 'インスタンスごと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。'
+			}
+		},
+
+		host: {
+			validator: $.str,
+			desc: {
+				'ja-JP': '対象のインスタンスのホスト',
+				'en-US': 'Target instance host'
+			}
+		}
+	}
+};
+
+export default define(meta, (ps) => new Promise(async (res, rej) => {
+	const stats = await instanceChart.getChart(ps.span as any, ps.limit, ps.host);
+
+	res(stats);
+}));

src/server/api/endpoints/federation/instances.ts

@@ -70,6 +70,22 @@ export default define(meta, (ps, me) => new Promise(async (res, rej) => {
 			sort = {
 				caughtAt: 1
 			};
+		} else if (ps.sort == '+driveUsage') {
+			sort = {
+				driveUsage: -1
+			};
+		} else if (ps.sort == '-driveUsage') {
+			sort = {
+				driveUsage: 1
+			};
+		} else if (ps.sort == '+driveFiles') {
+			sort = {
+				driveFiles: -1
+			};
+		} else if (ps.sort == '-driveFiles') {
+			sort = {
+				driveFiles: 1
+			};
 		}
 	} else {
 		sort = {