From 5aa5896b221ba73773a370fc01d1a9235eca33dd Mon Sep 17 00:00:00 2001
From: syuilo <syuilotan@yahoo.co.jp>
Date: Wed, 24 Apr 2019 08:11:19 +0900
Subject: Cache meta

---
 src/misc/fetch-meta.ts          | 18 ++++++++++++++++--
 src/misc/fetch-proxy-account.ts |  2 +-
 src/misc/reaction-lib.ts        |  2 +-
 3 files changed, 18 insertions(+), 4 deletions(-)

(limited to 'src/misc')

diff --git a/src/misc/fetch-meta.ts b/src/misc/fetch-meta.ts
index 800f0b9e63..db82adb2a4 100644
--- a/src/misc/fetch-meta.ts
+++ b/src/misc/fetch-meta.ts
@@ -1,7 +1,11 @@
 import { Meta } from '../models/entities/meta';
 import { getConnection } from 'typeorm';
 
-export default async function(): Promise<Meta> {
+let cache: Meta;
+
+export async function fetchMeta(noCache = false): Promise<Meta> {
+	if (!noCache && cache) return cache;
+
 	return await getConnection().transaction(async transactionalEntityManager => {
 		// バグでレコードが複数出来てしまっている可能性があるので新しいIDを優先する
 		const meta = await transactionalEntityManager.findOne(Meta, {
@@ -11,11 +15,21 @@ export default async function(): Promise<Meta> {
 		});
 
 		if (meta) {
+			cache = meta;
 			return meta;
 		} else {
-			return await transactionalEntityManager.save(Meta, {
+			const saved = await transactionalEntityManager.save(Meta, {
 				id: 'x'
 			}) as Meta;
+
+			cache = saved;
+			return saved;
 		}
 	});
 }
+
+setInterval(() => {
+	fetchMeta(true).then(meta => {
+		cache = meta;
+	});
+}, 5000);
diff --git a/src/misc/fetch-proxy-account.ts b/src/misc/fetch-proxy-account.ts
index 17b021e91e..075873091c 100644
--- a/src/misc/fetch-proxy-account.ts
+++ b/src/misc/fetch-proxy-account.ts
@@ -1,4 +1,4 @@
-import fetchMeta from './fetch-meta';
+import { fetchMeta } from './fetch-meta';
 import { ILocalUser } from '../models/entities/user';
 import { Users } from '../models';
 import { ensure } from '../prelude/ensure';
diff --git a/src/misc/reaction-lib.ts b/src/misc/reaction-lib.ts
index 008991454b..ced90ce78f 100644
--- a/src/misc/reaction-lib.ts
+++ b/src/misc/reaction-lib.ts
@@ -1,5 +1,5 @@
 import { emojiRegex } from './emoji-regex';
-import fetchMeta from './fetch-meta';
+import { fetchMeta } from './fetch-meta';
 import { Emojis } from '../models';
 
 const basic10: Record<string, string> = {
-- 
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