From 3bebf82501695ec4372eaadafaf42b845c387dcf Mon Sep 17 00:00:00 2001
From: syuilo <syuilotan@yahoo.co.jp>
Date: Mon, 22 Oct 2018 17:36:36 +0900
Subject: Implement #2980

---
 src/services/note/reaction/create.ts |  3 +++
 src/services/stats.ts                | 43 ++++++++++++++++++++++++++++++++++++
 2 files changed, 46 insertions(+)

(limited to 'src/services')

diff --git a/src/services/note/reaction/create.ts b/src/services/note/reaction/create.ts
index 8fa0b52e7d..13bb44ff3b 100644
--- a/src/services/note/reaction/create.ts
+++ b/src/services/note/reaction/create.ts
@@ -8,6 +8,7 @@ import watch from '../watch';
 import renderLike from '../../../remote/activitypub/renderer/like';
 import { deliver } from '../../../queue';
 import pack from '../../../remote/activitypub/renderer';
+import { perUserReactionsStats } from '../../stats';
 
 export default async (user: IUser, note: INote, reaction: string) => new Promise(async (res, rej) => {
 	// Myself
@@ -43,6 +44,8 @@ export default async (user: IUser, note: INote, reaction: string) => new Promise
 		$inc: inc
 	});
 
+	perUserReactionsStats.update(user, note);
+
 	publishNoteStream(note._id, 'reacted', {
 		reaction: reaction,
 		userId: user._id
diff --git a/src/services/stats.ts b/src/services/stats.ts
index 086420bb4b..a7b584f4dd 100644
--- a/src/services/stats.ts
+++ b/src/services/stats.ts
@@ -912,6 +912,49 @@ class PerUserNotesStats extends Stats<PerUserNotesLog> {
 export const perUserNotesStats = new PerUserNotesStats();
 //#endregion
 
+//#region Per user reactions stats
+/**
+ * ユーザーごとのリアクションに関する統計
+ */
+type PerUserReactionsLog = {
+	local: {
+		/**
+		 * リアクションされた数
+		 */
+		count: number;
+	};
+
+	remote: PerUserReactionsLog['local'];
+};
+
+class PerUserReactionsStats extends Stats<PerUserReactionsLog> {
+	constructor() {
+		super('perUserReaction', true);
+	}
+
+	@autobind
+	protected async getTemplate(init: boolean, latest?: PerUserReactionsLog, group?: any): Promise<PerUserReactionsLog> {
+		return {
+			local: {
+				count: 0
+			},
+			remote: {
+				count: 0
+			}
+		};
+	}
+
+	@autobind
+	public async update(user: IUser, note: INote) {
+		this.inc({
+			[isLocalUser(user) ? 'local' : 'remote']: { count: 1 }
+		}, note.userId);
+	}
+}
+
+export const perUserReactionsStats = new PerUserReactionsStats();
+//#endregion
+
 //#region Per user drive stats
 /**
  * ユーザーごとのドライブに関する統計
-- 
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